CN102719128A - Nano additive and preparation method thereof - Google Patents
Nano additive and preparation method thereof Download PDFInfo
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- CN102719128A CN102719128A CN2012102132218A CN201210213221A CN102719128A CN 102719128 A CN102719128 A CN 102719128A CN 2012102132218 A CN2012102132218 A CN 2012102132218A CN 201210213221 A CN201210213221 A CN 201210213221A CN 102719128 A CN102719128 A CN 102719128A
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Abstract
The invention discloses nano additive which is colloid. The colloid is prepared from inorganic silicate mineral materials. The nano additive is obvious in suspension effect, and the storage stability and the can opening effect of water-based paint are improved; nano fiber network ensures that titanium dioxide particles cannot be agglomerated easily, the dispersion degree of the titanium dioxide is guaranteed, and the shielding effect of titanium dioxide in the water-based paint is improved; the physical and mechanical performance of a film is improved in the presence of the nano fiber network and nano ore body particles, and light scattering power is improved, so that the contrast ratio of the film is improved; the resistance, particularly the water resistance of the film is greatly improved; and the adhesion, the flatness and the smooth finish of the film are improved through the permeability and the filing effect of nano particles.
Description
Technical field
The present invention relates to a kind of additive, a kind of more precisely nanometer additive.
Background technology
Nano material has the not available brand-new physicochemical property of homogeneity (macroscopic view) material.As: the germicidal action of nanometer silver and nanometer copper, the photocatalysis of nano titanium oxide; The strengthening action of nanometer fine particle calcium carbonate; But these nano materials are used in the intercalation polymeric effect of the photoextinction of nano silicon and nano montmorillonite, can develop corresponding a series of water-thinned nanometer paint, as: efficient sterilizing, anti-fog coating, photochemical catalysis automatically cleaning exterior coating; Automobile chassis preventing stone coating or the like.But the anti-agglomeration of these nano-powders in concrete the application is used further to water-based system after must disperseing to be mixed with water suspension separately, and functional single, and specific aim is more intense.
Summary of the invention
Because the above-mentioned shortcoming of prior art, the present invention proposes a kind of nanometer additive, and it can effectively solve the above-mentioned shortcoming of prior art.
A kind of nanometer additive, it is a colloid, and this colloid prepares for the inorganic silicate mineral material.
The crystalline form of said inorganic silicate mineral material is a kind of in fibrous, sheet or the lenticular.
Said colloid is made up of nanofiber and nano-mineral particle.
The diameter of said nanofiber is 20-50nm, and length is 5-10nm.
Said nanofiber cross stacking forms a fibre network, and said nano-mineral particle is embedded in the said fibre network disorderly.
Said nano-mineral particle is the nano silicate particle.
A kind of preparation method of nanometer additive is characterized in that, it may further comprise the steps:
(1) mineral are selected, and these mineral are silicate minerals;
(2) pulverize;
(3) classification;
(4) chemistry and physical method are handled;
(5) physics high-shear;
(6) the synthetic finished product for preparing.
The present invention has the following advantages: significantly suspension effect has improved the package stability of water-borne coatings and has opened a jar effect; The nanofiber network makes dispersive white titanium pigment particulate be difficult for reuniting, and the dispersity of white titanium pigment is protected, and the covering effect of white titanium pigment in water-borne coatings obtains synergy; Nanofiber network and the existence of nanometer ore body particulate have improved the physical and mechanical property of filming, and have strengthened the scattering of light ability, thereby have also increased the contrast ratio of filming; The resistance of filming, particularly water tolerance have greatly been improved; The perviousness of nanoparticle and packing action have improved the sticking power of filming, planeness and smooth finish.
Embodiment:
Below in conjunction with embodiment, describe the present invention in detail.Should be understood that these embodiments only to be used to the present invention is described and be not used in the restriction scope of the present invention.Should be understood that in addition those skilled in the art can do various changes or modification to the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
A kind of nanometer additive, it is a colloid, and this colloid prepares for the inorganic silicate mineral material.The crystalline form of said inorganic silicate mineral material is a kind of in fibrous, sheet or the lenticular.Stating colloid is made up of nanofiber and nano-mineral particle.The diameter of said nanofiber is 20-50nm, and length is 5-10nm.Said nanofiber cross stacking forms a fibre network, and said nano-mineral particle is embedded in the said fibre network disorderly.Said nano-mineral particle is the nano silicate particle.
A kind of preparation method of nanometer additive is characterized in that, it may further comprise the steps:
(1) mineral are selected, and these mineral are silicate minerals;
(2) pulverize;
(3) classification;
(4) chemistry and physical method are handled;
(5) physics high-shear;
(6) the synthetic finished product for preparing.
Technology of the present invention is non-metallic minerals to be utilized the once breakthrough of level, and these mineral originally can only make the agent of nanometer colloid coating multifunctional modification as the weighting agent of Chemicals after the high-tech deep processing.And, promptly utilized its nano-meter characteristic, also solved characteristic thus and the technological difficulties brought, make it to have practicality, thereby also improved the quality of coating effectively.Original technique is with mineral dry ground, classification, mixing.Be applied to water-borne coatings and at present should technology only limit.
Present technique is directed against the reunion of dry method deep processing existence and is difficult to the agglomerating particles redispersion, also is the practicality problem, carries out the breakthrough of novelty, develops the glue technological line of a mineral deep processing nanometer.The present invention adopts the fibrous of high whiteness; Sheet and lenticular inorganic silicate mineral material are through ingenious a kind of nanometer (water-dispersion) colloid composite and that obtain through the high-strength shearing of multiple tracks and chemical physics manufacturing procedure; Its convenient in application; Need only directly add in the high-speed stirring stage of water-borne coatings ordinary production technological process and get final product, can not change traditional processing technology.Through the Electronic Speculum microscopic examination: this colloid mainly is made up of nanofiber different in size and nanometer ore body particle.Fibre diameter is at 20-50nm, and length is at 5-10nm, and length-to-diameter ratio is about 20-50 and 100, and nanofiber and nanometer rod are intersected in length and breadth, overlapping accumulation, and the nano silicate particle is embedded among the nanofiber network disorderly.
After the material particle reached nanoscale, because its surface energy heightens, the utmost point and produce agglutination caused reunion.In this glue, this agglomeration has received stopping of nanofiber network.This conversely cohesive force has passed to the nanofiber network by nanoparticle again, produces pressure.Deposit the sem image after a year from colloid, maintain the original state basically and the easy aggregation phenomenon of other nanoparticle completely different.
After being applied to aqueous coating system; Perfectly the nanofiber network not only gives coating excellent antisolvent precipitation suspension; The compactness of filming is increased; The more important thing is that above-mentioned consonance imposed stress has obtained unprecedented enhancing just like giving the resistance that makes original macromolecular coating in the combination of stress Steel Concrete, particularly water tolerance again.
Present technique adopts purpose-made device and technology; Select special reagent and auxiliary agent for use; Impose high-intensity shearing force and physics chemical action, process nano level gelinite, originally prohibit the fibrous nano mineral, flake nano mineral and the nanocrystal mineral that are fixed in the mineral grain and just explain, dissociate out; In the protection of special reagent and auxiliary agent and mineral, be able to stablize under the getting along amiably and peacefully of three big major ingredient, do not reunite.
Nanometer additive of the present invention is used and the high molecular synthetic resin emulsion, can make emulsion form the organic and inorganic crossover network, makes New Emulsion; Be used for elastic coating, meet sword and solve water-fast problem because of the high construction thick coating that causes of emulsion content; Common coating for internal and external wall has been used this glue, can improve contrast ratio, water tolerance, abrasion resistance, reduce production costs etc.; The roller coat sandy paint has been used this glue, can guarantee construction quality (splash down less, coating is even, thickness is even) and decorative effect; This glue can improve the compactness of filming, the water tolerance of waterproof paint, rust proof paint, guarantees its waterproof, rust-proof effect.
The present invention has the following advantages: significantly suspension effect has improved the package stability of water-borne coatings and has opened a jar effect; The nanofiber network makes dispersive white titanium pigment particulate be difficult for reuniting, and the dispersity of white titanium pigment is protected, and the covering effect of white titanium pigment in water-borne coatings obtains synergy; Nanofiber network and the existence of nanometer ore body particulate have improved the physical and mechanical property of filming, and have strengthened the scattering of light ability, thereby have also increased the contrast ratio of filming; The resistance of filming, particularly water tolerance have greatly been improved; The perviousness of nanoparticle and packing action have improved the sticking power of filming, planeness and smooth finish.
Claims (7)
1. a nanometer additive is characterized in that, it is a colloid, and this colloid prepares for the inorganic silicate mineral material.
2. nanometer additive according to claim 1 is characterized in that, the crystalline form of said inorganic silicate mineral material is a kind of in fibrous, sheet or the lenticular.
3. according to the said nanometer additive of claim 1, it is characterized in that said colloid is made up of nanofiber and nano-mineral particle.
4. nanometer additive according to claim 3 is characterized in that, the diameter of said nanofiber is 20-50nm, and length is 5-10nm.
5. nanometer additive according to claim 4 is characterized in that, said nanofiber cross stacking forms a fibre network, and said nano-mineral particle is embedded in the said fibre network disorderly.
6. according to any described nanometer additive in the claim 1 to 5, it is characterized in that said nano-mineral particle is the nano silicate particle.
7. the preparation method of a nanometer additive is characterized in that, it may further comprise the steps:
(1) mineral are selected, and these mineral are silicate minerals;
(2) pulverize;
(3) classification;
(4) chemistry and physical method are handled;
(5) physics high-shear;
(6) the synthetic finished product for preparing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102132218A CN102719128A (en) | 2012-06-19 | 2012-06-19 | Nano additive and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102132218A CN102719128A (en) | 2012-06-19 | 2012-06-19 | Nano additive and preparation method thereof |
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| CN102719128A true CN102719128A (en) | 2012-10-10 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1321176A (en) * | 1998-10-07 | 2001-11-07 | 美国3M公司 | Radiopaque cationically polymerizable compositions comprising radiopacifying filler, and method for polymerizing same |
| CN1833068A (en) * | 2003-08-04 | 2006-09-13 | 大和纺织株式会社 | Filler-fixed fiber, fiber structure, molded fiber, and processes for producing these |
| CN101230210A (en) * | 2007-12-28 | 2008-07-30 | 河北工业大学 | Method for preparing organic modified silicate mineral clay |
| CN101973739A (en) * | 2010-07-30 | 2011-02-16 | 许庆华 | Golden attapulgite soft ceramic powder |
| WO2011077211A1 (en) * | 2009-12-23 | 2011-06-30 | Silicalia, Sl | Composition for coating |
-
2012
- 2012-06-19 CN CN2012102132218A patent/CN102719128A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1321176A (en) * | 1998-10-07 | 2001-11-07 | 美国3M公司 | Radiopaque cationically polymerizable compositions comprising radiopacifying filler, and method for polymerizing same |
| CN1833068A (en) * | 2003-08-04 | 2006-09-13 | 大和纺织株式会社 | Filler-fixed fiber, fiber structure, molded fiber, and processes for producing these |
| CN101230210A (en) * | 2007-12-28 | 2008-07-30 | 河北工业大学 | Method for preparing organic modified silicate mineral clay |
| WO2011077211A1 (en) * | 2009-12-23 | 2011-06-30 | Silicalia, Sl | Composition for coating |
| CN101973739A (en) * | 2010-07-30 | 2011-02-16 | 许庆华 | Golden attapulgite soft ceramic powder |
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Application publication date: 20121010 |