CN103160150A - Use of silica sand composite materials as dewatering sparse polyhydric alcohols materials - Google Patents
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- CN103160150A CN103160150A CN2012102609284A CN201210260928A CN103160150A CN 103160150 A CN103160150 A CN 103160150A CN 2012102609284 A CN2012102609284 A CN 2012102609284A CN 201210260928 A CN201210260928 A CN 201210260928A CN 103160150 A CN103160150 A CN 103160150A
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Abstract
The invention discloses use of silica sand composite materials as dewatering sparse polyhydric alcohols materials. The silica sand composite materials are spliced by aggregate particles and water-proof glue adhesive, wherein the aggregate particles are coated with hydrophobicity resin films, and the water-proof glue adhesive is capable of achieving bond combination among the aggregate particles which are coated with the hydrophobicity resin films, meanwhile gaps among the aggregate particles can be filled with the water-proof glue adhesive, and a system that the water-proof glue adhesive as intertexture is capable of hinging and coating the hydrophobicity resin films outside the aggregate particles is structured, thus characters of dewatering and sparse polyhydric alcohols of the silica sand composite materials can be guaranteed as a whole. The integrity further enables the silica sand composite materials as the dewatering sparse polyhydric alcohols materials to be used even through suffered outside abrasion, and the silica sand composite materials are abraded, the exposure newly born surface still has the characters of dewatering and sparse polyhydric alcohols, thus when the silica sand composite materials as the dewatering sparse polyhydric alcohols materials are used, the silica sand composite materials have the advantages of being long in service life of the dewatering sparse polyhydric alcohols.
Description
Technical field
The present invention relates to a kind of silica sand matrix material as the purposes of hydrophobic thin polyol masses, belong to functional materials and applied technical field thereof.
Background technology
The hydrophobicity of material refers to this material and the mutually exclusive character of water, and water can form when the hydrophobic material surface greater than the contact angle of 90 ° and be drops usually, makes the surface of hydrophobic material be difficult for being bedewed by water.In prior art, Chinese patent literature CN101838116A discloses a kind of hydrophobic granule, and this hydrophobic granule comprises the hydrophobic resin film of aggregate and coating aggregate, make this hydrophobic granule have good hydrophobicity, and hydrophobic actual effect is long, and weathering resistance is strong; The prior art also discloses simultaneously with described hydrophobic granule and has laid the waterproof and breathable structure that forms, and described waterproof and breathable structure has excellent waterproof, air permeable effect, can be widely used in using as breathable water repellant layer in lakebed, bottom, river, desert planting, waterproofing work.As seen the disclosed hydrophobic granule of the prior art is mainly as the air-permeable, hydrophobic materials'use, and dredges the character of polyvalent alcohol and purposes so far there are no report for this hydrophobic granule.And in prior art to the material liquid-repellency can the universal law that draws of institute be: hydrophobic material is not necessarily dredged polyvalent alcohol, but it is necessarily hydrophobic to dredge the material of polyvalent alcohol.Therefore, people also can't predict the character that this hydrophobic granule is dredged polyvalent alcohol according to the hydrophobicity of this hydrophobic granule.
At present, not yet occur being specifically designed to the material of hydrophobic thin polyvalent alcohol in prior art, when people run into the situation that needs hydrophobic thin polyvalent alcohol in actual applications, typically use hydrophobic oleophobic material of the prior art.hydrophobic oleophobic material of the prior art mainly contains two classes, wherein a class is the hydrophobic oleophobic material that the surface has micro-nano structure, this class material normally people utilizes etching method or template to process the micro-nano structure at substrate surface to obtain, described base material can be organosilicon, the organic materials such as silicon rubber and superpolymer or glass, quartzy, the inorganic materials such as metal and metal oxide, the micro-nano structure that processes is little column shape of rule normally, spherical, fibrous and hole shape etc., thereby the roughness that these micro-nano structures have increased substrate surface has been given the base material hydro-oleophobicity, but the processing of these micro-nano structures needs specific equipment mostly, exacting terms and complicated technique, cause the surface to have a hydrophobic oleophobic material preparation cost of micro-nano structure high, be difficult to realize large-scale industrial production, and the physical strength of these surperficial micro-nano structures is relatively poor, easily by outside destroy, causes hydro-oleophobicity to be lost during practical application, and namely the hydrophobic oleophobic life-span of such material is short.Another kind of hydrophobic oleophobic material is the matrix material that the surface has hydrophobic oleophobic fluoric compound film, materials normally people adopts chemical Vapor deposition process or polymers soln to become embrane method to obtain in substrate surface deposition or coating fluoric compound film, namely utilizing the low surface energy of fluoric compound to reduce the surface of base material can, thereby give the base material hydro-oleophobicity, described base material is generally polymeric substrate.In prior art, Chinese patent literature CN101730578A discloses a kind of ventilation property matrix material, comprising: (a) porous polymer structure, and it has a plurality of holes that pass wherein and extend and has at least one outside surface; (b) coating, it covers at least a portion of described outside surface; (c) described coating comprises at least the first component and second component; (d) described the first component comprises oleophobic and hydrophobic fluorine material, and described second component comprises PFPE.The prior art has obtained a kind of ventilation property matrix material of waterproof and oilproof by apply oleophobic and hydrophobic fluorine material on porous polymer matrix, but the thickness that the wearing and tearing in this material external world when practical application can make the oleophobic that applies on porous polymer matrix and hydrophobic fluorine-containing layer gradually attenuation until disappear, thereby cause the forfeiture of hydro-oleophobicity, namely the hydrophobic oleophobic life-span of this ventilation property matrix material is short; In addition, the necessary fluorine material of this ventilation property matrix material is expensive, causes this type of hydrophobic oleophobic material with fluorochemical surface layer to have the high problem of preparation cost.
As the above analysis, hydrophobic granule of the prior art has no report as the purposes of hydrophobic thin polyol masses, and there are the following problems when using as hydrophobic thin polyol masses with the hydrophobic oleophobic material in actual applications: (1) surperficial micro-nano structure physical strength is low and easily by outside destroy, cause the hydrophobic oleophobic life-span short, thereby cause the life-span of hydrophobic thin polyvalent alcohol short; (2) the fluorine-contained surface material layer easily fades away under external world's wearing and tearing, causes hydro-oleophobicity to be lost, and hydrophobic thin polyvalent alcohol is also lost thereupon, and namely the life-span of hydrophobic thin polyvalent alcohol is short; (3) fluoric compound expensive raw material price causes hydrophobic oleophobic material preparation cost high, thereby causes the cost of hydrophobic thin polyol masses high.
Summary of the invention
Cost height and hydrophobic thin short problem of polyvalent alcohol life-span that technical problem to be solved by this invention exists when being to use as hydrophobic thin polyol masses with the hydrophobic oleophobic material in prior art, and then the purposes of a kind of silica sand matrix material as hydrophobic thin polyol masses is provided, and this silica sand matrix material has the low and hydrophobic long characteristics of thin polyvalent alcohol life-span of cost when using as hydrophobic thin polyol masses.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:
A kind of silica sand matrix material is as the purposes of hydrophobic thin polyol masses, and described silica sand matrix material is formed by particles of aggregates and waterproof sizing agent bonding, and described particles of aggregates is coated with the hydrophobic resin film.
Described waterproof sizing agent is one or more in hydrophobicity epoxy resin, urethane resin, silicone resin.
Described hydrophobic resin film is one or more in hydrophobicity epoxy resin, resol, urethane resin, silicone resin.
The mass percent that described hydrophobic resin film accounts for described particles of aggregates is 0.5-5.0%.
Described particles of aggregates is one or more in quartz sand, slag, haydite or glass microballon, and the particle diameter of described particles of aggregates is the 70-300 order.
The particle diameter of described particles of aggregates is the 100-200 order.
Described silica sand matrix material has the hole that gas molecule can pass through, and the aperture of described hole is 0.1-50 μ m.
Described hole is by forming between adjacent described particles of aggregates.
Described waterproof sizing agent accounts for the described 4-15wt.% that is coated with the particles of aggregates of hydrophobic resin film.
It is 5-10% that described waterproof sizing agent accounts for the described mass percent that is coated with the particles of aggregates of hydrophobic resin film.
Described silica sand matrix material makes by following method:
(1) described hydrophobic resin is heated to molten state, described particles of aggregates is heated to 120-180 ℃, add the hydrophobic resin of molten state in particles of aggregates after the heating, mix mixing, make described hydrophobic resin be dispersed in the surface of described particles of aggregates, then cooling, sieve, obtain being coated with the particles of aggregates of hydrophobic resin film;
Particles of aggregates and the described waterproof sizing agent that (2) will be coated with the hydrophobic resin film mix, and then pour forming mould into;
(3) the curing molding demoulding namely obtains the silica sand matrix material of described hydrophobic thin polyvalent alcohol.
In described step (1), described particles of aggregates is heated to 130-160 ℃.
In described step (3), the temperature of described curing molding is 25-120 ℃, and the time of described curing molding is 2-48 hour.
In described step (3), the time of described curing molding is 6-10 hour.
The present invention compared with prior art has the following advantages:
(1) silica sand matrix material of the present invention is as the purposes of hydrophobic thin polyol masses, described silica sand matrix material is formed by particles of aggregates and waterproof sizing agent bonding, and be coated with the hydrophobic resin film at described particles of aggregates, thereby making particles of aggregates, the coating function by hydrophobic resin further had hydrophobic characteristic except the effect with support frame, the interpolation of waterproof sizing agent has realized the combination of cohering between the above-mentioned particles of aggregates that is coated with hydrophobic resin, make simultaneously the gap of cohering between above-mentioned particles of aggregates be filled by the waterproof sizing agent, built the system that is coated on the hydrophobic resin film outside particles of aggregates take the glutinous agent of waterproof glue as the intertexture link, thereby the hydrophobicity of silica sand matrix material and the characteristic of thin polyvalent alcohol have been guaranteed on the whole, even this globality is subject to extraneous wearing and tearing when further making described silica sand matrix material as the materials'use of hydrophobic thin polyvalent alcohol, the fresh surface that exposes after its wearing and tearing still has the characteristic of hydrophobic thin polyvalent alcohol, thereby have advantages of that the hydrophobic thin polyvalent alcohol life-span is long when making described silica sand matrix material as the materials'use of hydrophobic thin polyvalent alcohol.
(2) silica sand matrix material of the present invention is as the purposes of hydrophobic thin polyol masses, waterproof sizing agent in described silica sand matrix material is hydrophobicity epoxy resin, urethane resin, one or more in silicone resin, the hydrophobic resin film is hydrophobicity epoxy resin, resol, urethane resin, one or more in silicone resin, be that described waterproof sizing agent and hydrophobic resin film are not fluorine-containing material, the price of its price fluoric compound more of the prior art is much lower, thereby greatly reduce the cost of described silica sand matrix material, and then have advantages of that cost is low when making described silica sand matrix material as the materials'use of hydrophobic thin polyvalent alcohol.
(3) silica sand matrix material of the present invention is as the purposes of hydrophobic thin polyol masses, particles of aggregates in described silica sand matrix material is one or more in quartz sand, slag, haydite or glass microballon, these cost of material are low, thus the cost when having reduced described silica sand matrix material as hydrophobic thin polyol masses use; In addition, described particles of aggregates is without any murder by poisoning, thus safety and environmental protection when described silica sand matrix material is used as hydrophobic thin polyol masses.
(4) silica sand matrix material of the present invention is as the purposes of hydrophobic thin polyol masses, the particle diameter of the particles of aggregates in described silica sand matrix material is the 70-300 order, thereby the silica sand matrix material that described particles of aggregates is obtained after hydrophobic resin coating and the link of waterproof sizing agent has coarse surface on microcosmic, and then has improved the characteristic of the hydrophobic thin polyvalent alcohol of described silica sand matrix material.
(5) silica sand matrix material of the present invention is as the purposes of hydrophobic thin polyol masses, described silica sand matrix material has the hole that gas molecule can pass through, the pore diameter range of described hole is 0.1-50 μ m, make described silica sand matrix material have ventilation property, therefore described silica sand matrix material can be used as the hydrophobic thin polyol masses use of ventilation property; In addition, the character of the hydrophobic thin polyvalent alcohol that described silica sand matrix material has makes water molecules and polyvalent alcohol molecule, and the form with small droplets exists on the surface of described silica sand matrix material, and small droplets can not penetrate in described hole, therefore make described silica sand matrix material also have the performance that prevents water molecules and polyvalent alcohol molecule infiltration when having ventilation property and hydrophobic thin polyvalent alcohol, use thereby make described silica sand matrix material can be used as the hydrophobic thin polyol masses of ventilation anti-seepage.
(6) silica sand matrix material of the present invention is as the purposes of hydrophobic thin polyol masses, curing molding can prepare described silica sand matrix material by mix also after coated by hydrophobic resin film on described particles of aggregates with described waterproof sizing agent, has the simple advantage of preparation technology.
Embodiment
In order to make technical solutions according to the invention more be convenient to understand, below in conjunction with embodiment, technical solutions according to the invention are further elaborated.
Embodiment 1
A kind of silica sand matrix material is formed by particles of aggregates and waterproof sizing agent bonding, and described particles of aggregates is coated with the hydrophobic resin film.In the present embodiment, described particles of aggregates is quartz sand, and the particle diameter of described quartz sand is 70 orders; Described hydrophobic resin is hydrophobicity epoxy resin, and described hydrophobic resin film accounts for the 0.5wt.% of described particles of aggregates; Described waterproof sizing agent is hydrophobicity epoxy resin, and described waterproof sizing agent accounts for the 4.0wt.% of the particles of aggregates that is coated with the hydrophobic resin film.
Described silica sand matrix material makes by following method:
(1) described hydrophobicity epoxy resin is heated to molten state, described quartz sand particle is heated to 120 ℃, to the heating after quartz sand particle in add hydrophobicity epoxy resin, the add-on of hydrophobicity epoxy resin is 0.5% of described quartz sand particle quality, to both mix mixing, make described hydrophobicity epoxy resin be dispersed in the surface of described quartz sand particle, then cooling, sieve, obtain being coated with the particles of aggregates of hydrophobicity epoxy resin film;
The particles of aggregates that (2) will be coated with the hydrophobic resin film is that hydrophobicity epoxy resin mixes with described waterproof sizing agent, described waterproof sizing agent accounts for the 4.0wt.% of the particles of aggregates that is coated with the hydrophobicity epoxy resin film, pours forming mould into after both mixing;
(3) place 48h at 25 ℃ and be cured moulding, then the demoulding namely obtains described silica sand matrix material.
Described silica sand matrix material is used for hydrophobic thin polyol masses, and described polyvalent alcohol comprises: ethylene glycol, 1,2-PD, 1,3-PD, glycerol (glycerine), poly(oxyethylene glycol) 400.
Embodiment 2
A kind of silica sand matrix material is formed by particles of aggregates and waterproof sizing agent bonding, and described particles of aggregates is coated with the hydrophobic resin film.In the present embodiment, described particles of aggregates is the mixture that quartz sand and slag form with weight ratio 4:1, and the particle diameter of described quartz sand is 200 orders, and the particle diameter of described slag is 100 orders; Described hydrophobic resin is hydrophobicity resol, and described hydrophobic resin film accounts for the 2.0wt.% of described particles of aggregates; Described waterproof sizing agent is the hydrophobic polyurethane resin, and described waterproof sizing agent accounts for the 5.0wt.% of the particles of aggregates that is coated with the hydrophobic resin film.
Described silica sand matrix material makes by following method:
(1) described hydrophobicity resol is heated to molten state, described slag particle is heated to 180 ℃, add the hydrophobicity resol of molten state in slag particle after the heating, the add-on of hydrophobicity resol is the 2.0wt.% of described slag particle quality, to both mix mixing, make described hydrophobicity resol be dispersed in the surface of described slag particle, then cooling, sieve, obtain being coated with the particles of aggregates of hydrophobicity phenolic resin film;
Particles of aggregates and the described waterproof sizing agent that (2) will be coated with the hydrophobic resin film are the hydrophobic polyurethane mixed with resin, described waterproof sizing agent accounts for the 5.0wt.% of the particles of aggregates that is coated with the hydrophobicity phenolic resin film, pours forming mould into after both mixing;
(3) place 2h at 120 ℃ and be cured moulding, then the demoulding namely obtains described silica sand matrix material.
Described silica sand matrix material is used for hydrophobic thin polyol masses, and described polyvalent alcohol comprises: ethylene glycol, 1,2-PD, 1,3-PD, glycerol (glycerine), poly(oxyethylene glycol) 400.
Embodiment 3
A kind of silica sand matrix material is formed by particles of aggregates and waterproof sizing agent bonding, and described particles of aggregates is coated with the hydrophobic resin film; Described silica sand matrix material has gas molecule can cross the hole that passes through, and the aperture of described hole is 20-50 μ m.In the present embodiment, described particles of aggregates is haydite, and the particle diameter of described haydite is 300 orders; Described hydrophobic resin is the hydrophobic polyurethane resin, and described hydrophobic resin film accounts for the 5.0wt.% of described particles of aggregates; Described waterproof sizing agent is the hydrophobicity silicone resin, and described waterproof sizing agent accounts for the 5.0wt.% of the particles of aggregates that is coated with the hydrophobic resin film.
Described silica sand matrix material makes by following method:
(1) described hydrophobic polyurethane resin is heated to molten state, described haydite particle is heated to 130 ℃, add the hydrophobic polyurethane resin of molten state in haydite particle after the heating, the add-on of hydrophobic polyurethane resin is 5.0% of described haydite granular mass, to both mix mixing, make described hydrophobic polyurethane resin be dispersed in the surface of described haydite particle, then cooling, sieve, obtain being coated with the particles of aggregates of hydrophobic polyurethane resin molding;
The particles of aggregates that (2) will be coated with the hydrophobic resin film is that the hydrophobicity silicone resin mixes with described waterproof sizing agent, described waterproof sizing agent accounts for the 5.0wt.% of the particles of aggregates that is coated with the hydrophobic polyurethane resin molding, pours forming mould into after both mixing;
(3) place 10h at 25 ℃ and be cured moulding, then the demoulding namely obtains described silica sand matrix material.
Described silica sand matrix material is used for hydrophobic thin polyol masses, and described polyvalent alcohol comprises: ethylene glycol, 1,2-PD, 1,3-PD, glycerol (glycerine), poly(oxyethylene glycol) 400.
Can cross because described silica sand matrix material has gas molecule the hole that passes through, make described silica sand matrix material have ventilation property, therefore, described silica sand matrix material need also to can be applicable to the occasion of ventilation property when using as hydrophobic thin polyol masses.
Embodiment 4
A kind of silica sand matrix material is formed by particles of aggregates and waterproof sizing agent bonding, and described particles of aggregates is coated with the hydrophobic resin film; Described silica sand matrix material has gas molecule can cross the hole that passes through, and the aperture of described hole is 0.1-20 μ m; Described hole is by forming between adjacent described particles of aggregates.In the present embodiment, described particles of aggregates is that haydite and glass microballon mix the mixture that forms with weight ratio 3:1, and the particle diameter of described haydite is 150 orders, and the particle diameter of described glass microballon is 100 orders; Described hydrophobic resin is the hydrophobicity silicone resin, and described hydrophobic resin film accounts for the 1.0wt.% of described particles of aggregates; Described waterproof sizing agent is hydrophobicity epoxy resin, and described waterproof sizing agent accounts for the 10.0wt.% of the particles of aggregates that is coated with the hydrophobic resin film.
Described silica sand matrix material makes by following method:
(1) described hydrophobicity silicone resin is heated to molten state, described glass microballon is heated to 160 ℃, add the hydrophobicity silicone resin of molten state in glass microballon after the heating, the add-on of hydrophobicity silicone resin is 1.0% of described glass microballon quality, to both mix mixing, make described hydrophobicity silicone resin be dispersed in the surface of described glass microballon, then cooling, sieve, obtain being coated with the particles of aggregates of hydrophobicity silicone resin film;
The particles of aggregates that (2) will be coated with the hydrophobic resin film is that hydrophobicity epoxy resin mixes with described waterproof sizing agent, and described waterproof sizing agent accounts for the 10.0wt.% of the particles of aggregates that is coated with the hydrophobicity silicone resin film, pours forming mould into after both mixing;
(3) place 6h at 25 ℃ and be cured moulding, then the demoulding namely obtains described silica sand matrix material.
Described silica sand matrix material is used for hydrophobic thin polyol masses, and described polyvalent alcohol comprises: ethylene glycol, 1,2-PD, 1,3-PD, glycerol (glycerine), poly(oxyethylene glycol) 400.
because having gas molecule, described silica sand matrix material can cross the hole that passes through, make described silica sand matrix material have ventilation property, simultaneously, the character of the hydrophobic thin polyvalent alcohol that described silica sand matrix material has makes water molecules and polyvalent alcohol molecule, and the form with small droplets exists on the surface of described silica sand matrix material, and small droplets can not penetrate in described hole, therefore make described silica sand matrix material also have the performance that prevents water molecules and polyvalent alcohol molecule infiltration when having ventilation property and hydrophobic thin polyvalent alcohol, thereby need also to can be applicable to the occasion of ventilation anti-seepage when making described silica sand matrix material use as hydrophobic thin polyol masses.
Embodiment 5
A kind of silica sand matrix material is formed by particles of aggregates and waterproof sizing agent bonding, and described particles of aggregates is coated with the hydrophobic resin film; Described silica sand matrix material has gas molecule can cross the hole that passes through, and the aperture of described hole is 5-30 μ m; Described hole is by forming between adjacent described particles of aggregates.In the present embodiment, described particles of aggregates is the mixture that quartz sand and glass microballon form with weight ratio 4:1, and the particle diameter of described quartz sand is 300 orders, and the particle diameter of described slag is 200 orders; Described hydrophobic resin is that hydrophobicity epoxy resin and hydrophobic polyurethane resin mix the mixture that forms with weight ratio 3:1, and described hydrophobic resin film accounts for the 1.5wt.% of described particles of aggregates; Described waterproof sizing agent is the hydrophobicity silicone resin, and described waterproof sizing agent accounts for the 15.0wt.% of the particles of aggregates that is coated with the hydrophobic resin film.
Described silica sand matrix material makes by following method:
(1) described hydrophobicity silicone resin is heated to molten state, described particles of aggregates is heated to 150 ℃, add the hydrophobicity epoxy resin of molten state in particles of aggregates after the heating, the add-on of hydrophobicity epoxy resin is 1.5% of described particles of aggregates quality, to both mix mixing, make described hydrophobicity epoxy resin be dispersed in the surface of described particles of aggregates, then cooling, sieve, obtain being coated with the particles of aggregates of hydrophobicity epoxy resin film;
The particles of aggregates that (2) will be coated with the hydrophobic resin film is that the hydrophobicity silicone resin mixes with described waterproof sizing agent, and described waterproof sizing agent accounts for the 15.0wt.% of the particles of aggregates that is coated with the hydrophobic resin film, pours forming mould into after both mixing;
(3) place 12h at 100 ℃ and be cured moulding, then the demoulding namely obtains described silica sand matrix material.
Described silica sand matrix material is used for hydrophobic thin polyol masses, and described polyvalent alcohol comprises: ethylene glycol, 1,2-PD, 1,3-PD, glycerol (glycerine), poly(oxyethylene glycol) 400.
Embodiment 6
A kind of silica sand matrix material is formed by particles of aggregates and waterproof sizing agent bonding, and described particles of aggregates is coated with the hydrophobic resin film; Described silica sand matrix material has gas molecule can cross the hole that passes through, and the aperture of described hole is 10-30 μ m; Described hole is by forming between adjacent described particles of aggregates.In the present embodiment, described particles of aggregates is that slag and glass microballon mix the mixture that forms with weight ratio 3:1, and the particle diameter of described slag is 200 orders, and the particle diameter of described glass microballon is 150 orders; Described hydrophobic resin is that hydrophobicity epoxy resin and resol mix the mixture that forms with weight ratio 1:1, and described hydrophobic resin accounts for the 1.0wt.% of described particles of aggregates; Described waterproof sizing agent is that hydrophobic polyurethane resin and silicone resin mix the mixture that forms with weight ratio 1:2, and described waterproof sizing agent accounts for the 5.0wt.% of the particles of aggregates that is coated with the hydrophobic resin film.
Described silica sand matrix material makes by following method:
(1) described hydrophobic resin is heated to molten state, described particles of aggregates is heated to 140 ℃, add the hydrophobic resin of molten state in particles of aggregates after the heating, the add-on of described hydrophobic resin is 1.0% of described particles of aggregates quality, to both mix mixing, make described hydrophobic resin be dispersed in the surface of described particles of aggregates, then cooling, sieve, obtain being coated with the particles of aggregates of hydrophobic resin film;
The particles of aggregates that (2) will be coated with the hydrophobic resin film mixes with described waterproof sizing agent, and described waterproof sizing agent accounts for the 5.0wt.% of the particles of aggregates that is coated with the hydrophobic resin film, pours forming mould into after both mixing;
(3) place 24h at 50 ℃ and be cured moulding, then the demoulding namely obtains described silica sand matrix material.
Described silica sand matrix material is used for hydrophobic thin polyol masses, and described polyvalent alcohol comprises: ethylene glycol, 1,2-PD, 1,3-PD, glycerol (glycerine), poly(oxyethylene glycol) 400.
As disposable embodiment, the present embodiment is on the basis of above-described embodiment, and described particles of aggregates is one or more in quartz sand, slag, haydite or glass microballon; Described hydrophobic resin film is one or more in hydrophobicity epoxy resin, resol, urethane resin, silicone resin; Described waterproof sizing agent is one or more in hydrophobicity epoxy resin, urethane resin, silicone resin.
Test case
Technique effect when proving that silica sand matrix material of the present invention uses as hydrophobic thin polyol masses, the present invention has measured the silica sand matrix material described in above-described embodiment 1-6 and the contact angle of described polyvalent alcohol, and ventilation property and the flexural strength of described silica sand matrix material have been measured, wherein
Contact angle GB/T 24368-2009 standard testing;
Flexural strength GB9966.2-2001 standard testing;
STZ-A type direct reading permmeter is adopted in the ventilation property test, and sample is the right cylinder of Φ 50mm * 50mm.The principle of ventilation property test is: utilize pressure differential method to test, at normal temperatures, make the certain gas differential pressure of sample both sides maintenance, by measuring the volume that passes through within a certain period of time the gas of sample, thereby calculate the air transmission coefficient of this sample, in this test case, set pressure differential is 900Pa-1000Pa.
The performance test results of hydrophobic, the thin polyvalent alcohol of described silica sand matrix material and flexural strength thereof and ventilation property test result see Table 1.As can be seen from Table 1, the described silica sand matrix material of embodiment 1-6 and water, ethylene glycol, 1,2-propylene glycol, 1, the contact angle of ammediol, glycerol (glycerine) and poly(oxyethylene glycol) 400 illustrates that all apparently higher than 100 ° described silica sand matrix material uses the hydrophobic thin polyvalent alcohol performance with excellence as hydrophobic thin polyol masses.In addition, the ventilation property test result shows that described silica sand matrix material has excellent breathability, can be used for the hydrophobic thin polyol masses of ventilation property.
Obviously, above-described embodiment is only for example clearly is described, and is not the restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give all embodiments exhaustive.And the apparent variation of being extended out thus or change still are among the protection domain of the invention.
Table 1
Claims (14)
1. a silica sand matrix material is as the purposes of hydrophobic thin polyol masses, and described silica sand matrix material is formed by particles of aggregates and waterproof sizing agent bonding, and described particles of aggregates is coated with the hydrophobic resin film.
2. silica sand matrix material according to claim 1 as the purposes of hydrophobic thin polyol masses, is characterized in that, described waterproof sizing agent is one or more in hydrophobicity epoxy resin, urethane resin, silicone resin.
3. silica sand matrix material according to claim 1 and 2 as the purposes of hydrophobic thin polyol masses, is characterized in that, described hydrophobic resin film is one or more in hydrophobicity epoxy resin, resol, urethane resin, silicone resin.
4. according to claim 1 ~ 3 arbitrary described silica sand matrix materials as the purposes of hydrophobic thin polyol masses, is characterized in that, the mass percent that described hydrophobic resin film accounts for described particles of aggregates is 0.5-5.0%.
5. according to claim 1 ~ 4 arbitrary described silica sand matrix materials are as the purposes of hydrophobic thin polyol masses; it is characterized in that; described particles of aggregates is one or more in quartz sand, slag, haydite or glass microballon, and the particle diameter of described particles of aggregates is the 70-300 order.
6. according to claim 1 ~ 5 arbitrary described silica sand matrix materials as the purposes of hydrophobic thin polyol masses, is characterized in that, the particle diameter of described particles of aggregates is the 100-200 order.
7. according to claim 1 ~ 6 arbitrary described silica sand matrix materials as the purposes of hydrophobic thin polyol masses, is characterized in that, described silica sand matrix material has the hole that gas molecule can pass through, and the aperture of described hole is 0.1-50 μ m.
8. silica sand matrix material according to claim 7 as the purposes of hydrophobic thin polyol masses, is characterized in that, described hole is by forming between adjacent described particles of aggregates.
9. according to claim 1 ~ 8 arbitrary described silica sand matrix materials as the purposes of hydrophobic thin polyol masses, is characterized in that, described waterproof sizing agent accounts for the described 4-15wt.% that is coated with the particles of aggregates of hydrophobic resin film.
10. silica sand matrix material according to claim 9 as the purposes of hydrophobic thin polyol masses, is characterized in that, the mass percent that described waterproof sizing agent accounts for the particles of aggregates that is coated with the hydrophobic resin film is 5-10%.
11. according to claim 1 ~ 10 arbitrary described silica sand matrix materials is characterized in that as the purposes of hydrophobic thin polyol masses, described silica sand matrix material makes by following method:
(1) described hydrophobic resin is heated to molten state, described particles of aggregates is heated to 120-180 ℃, add the hydrophobic resin of molten state in particles of aggregates after the heating, mix mixing, make described hydrophobic resin be dispersed in the surface of described particles of aggregates, then cooling, sieve, obtain being coated with the particles of aggregates of hydrophobic resin film;
Particles of aggregates and the described waterproof sizing agent that (2) will be coated with the hydrophobic resin film mix, and then pour forming mould into;
(3) the curing molding demoulding namely obtains the silica sand matrix material of described hydrophobic thin polyvalent alcohol.
12. silica sand matrix material according to claim 11 is characterized in that as the purposes of hydrophobic thin polyol masses,
Described particles of aggregates is heated to 130-160 ℃.
13. according to claim 11 or 12 described silica sand matrix materials is characterized in that as the purposes of hydrophobic thin polyol masses, the temperature of described curing molding is 25-120 ℃, and the time of described curing molding is 2-48 hour.
14. silica sand matrix material according to claim 13 is characterized in that as the purposes of hydrophobic thin polyol masses,
The time of described curing molding is 6-10 hour.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210260928.4A CN103160150B (en) | 2012-07-26 | 2012-07-26 | Use of silica sand composite materials as dewatering sparse polyhydric alcohols materials |
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| CN201210260928.4A CN103160150B (en) | 2012-07-26 | 2012-07-26 | Use of silica sand composite materials as dewatering sparse polyhydric alcohols materials |
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| CN103160150A true CN103160150A (en) | 2013-06-19 |
| CN103160150B CN103160150B (en) | 2015-07-15 |
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| CN201210260928.4A Active CN103160150B (en) | 2012-07-26 | 2012-07-26 | Use of silica sand composite materials as dewatering sparse polyhydric alcohols materials |
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