CN103756541A - Transparent super-hydrophobicity wood coating and preparation method thereof - Google Patents
Transparent super-hydrophobicity wood coating and preparation method thereof Download PDFInfo
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- CN103756541A CN103756541A CN201410006256.3A CN201410006256A CN103756541A CN 103756541 A CN103756541 A CN 103756541A CN 201410006256 A CN201410006256 A CN 201410006256A CN 103756541 A CN103756541 A CN 103756541A
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Abstract
The invention discloses a transparent super-hydrophobicity wood coating which comprises the following components in parts by weight: 20-50 parts of water dispersive polyurethane resin or water dispersive alkyd resin, 4.5-25 parts of nano silica sol, 3-16 parts of nano cellulose gel, 0.1-1 part of octadecyl trichlorosilane or tetrahydroperfluorodecyltrichlorosilane or stearic acid and 0-45 parts of nano talc powder or nano calcium carbonate. A preparation method of the transparent super-hydrophobicity wood coating comprises the following steps: adding matrix resin and filler into a stirring kettle, and stirring uniformly to obtain slurry; grinding the slurry with a sand mill; adding a low-surface energy substance and supported nano silica sol; performing ultrasonic sufficient mixing for 30 minutes to obtain the transparent super-hydrophobicity coating. The transparent super-hydrophobicity wood coating disclosed by the invention has the advantages of low cost, controllable process, adjustable size and good applicability and is suitable for a preparation method of large-area preparation of transparent super-hydrophobicity surface; the prepared super-hydrophobicity film has good self-cleaning property, antifouling property, hydrophobic property, oleophobic property and the like.
Description
Technical field
What the present invention relates to is a kind of transparent hydrophobic woodwork coating and preparation method thereof.Belong to modified paint preparing technical field.
Background technology
Along with the deep reform of environmental regulation, all the more strict for the requirement of wood product surface coating, water-borne wood coating, not contain the advantage of solvent-borne type organic volatile part, is a dark horse at coating industry.At present, the greatest problem of water-borne coatings is the shortcomings such as poor water resistance, dried coating film speed is slow, hardness is not high.
Because super hydrophobic surface has the surface property of a lot of uniquenesses: as characteristics such as self-cleaning property, antifouling properties, hydrophobic, oleophobic, low-friction coefficients, these properties make it have huge using value in a lot of fields.As be applied in coatings industry, and can give film some unique performances, the characteristics such as stain resistance, self-cleaning property, hydrophobicity and the oleophobic property of film are provided.
Nano silicon dioxide sol has nano level aperture and continuous three-dimensional net structure makes it have the character of many uniquenesses, can be used to the aspects such as high temperature high efficiency lagging material, gas filtering material, efficient electric energy electrode, specific acoustic resistance lotus root condensation material, gas adsorption and separatory membrane, efficient rechargeable cell, effective catalyst.Nano silicon dioxide sol is compared other colloidal sol and is had good chemical stability, as good acidproof, alkali resistance, is not easy and the advantages such as other material generation chemical reaction.But the common granular size of silicon sol prepared by traditional technology is in 10-20nm left and right, pattern is non-spherical and uncontrollable, high, the intergranular interface of foreign matter content is unintelligible, the concentration of silicon-dioxide is low, acidity or neutrallty condition stability inferior is poor, life cycle is short, more or less a band point color, kind are few, and silicon sol volumetric shrinkage in film process is larger, and film is easy to crack.Therefore limited its widespread use.
Summary of the invention
What the present invention proposed is a kind of transparent hydrophobic woodwork coating and preparation method thereof, its object is to overcome the existing above-mentioned defect of prior art, preparation has that particle diameter is controlled, the nano silicon dioxide sol of size homogeneous, and by the modification of nano-cellulose gel, improve the defect that coating is easily shunk when dry, and make coating there is the characteristics such as self-cleaning property, didirtresistance, hydrophobic and oleophobic.
Technical solution of the present invention: transparent hydrophobic woodwork coating, is characterized in that comprising following component:
Water dispersant type polyaminoester resin or water dispersive alkyd resin 20-50 part,
Nano silicon dioxide sol 4.5-25 part,
Nano-cellulose gel 3-16 part,
Octadecyl trichlorosilane alkane or tetrahydrochysene perfluor decyltrichlorosilane or stearic acid 0.1-1 part,
Nanomete talc powder or nano-calcium carbonate 0-45 part.
The preparation method of transparent hydrophobic woodwork coating, comprises the following steps:
1) in stirring tank, add matrix resin and filler, stir, make slurry;
2) with sand mill, above-mentioned slurry is ground;
3) add low surface energy material, and add loaded nano silicon dioxide gel, ultrasonic wave fully to mix 30 minutes, obtain transparent hydrophobic coating.
A kind of transparent hydrophobic woodwork coating, comprising: matrix resin, loaded nano silicon dioxide gel, filler, auxiliary agent.Wherein, the ratio by weight percentage of the each component in described coating is: matrix resin 20-50%, loaded nano silicon dioxide gel 1-25%, filler 15-45%, auxiliary agent 0.1-1%.
Advantage of the present invention: pass through sol-gel technique, prepare that particle diameter is controlled, the nano silicon dioxide sol of size homogeneous, using nano-cellulose as inductor, utilize the coordination of its induced crystallization and surface-OH, and the low surface energy material that adulterates carries out hydrophobically modified simultaneously, to obtain the loaded nano silicon dioxide gel of super-hydrophobicity.By the nano silicon dioxide sol after modification according to a certain percentage with matrix resin, filler, auxiliary agent blend, through stirring, applying, dry, make super-hydrophobic film.The preparation method on the transparent hydrophobic surface that the present invention is with low cost, process is controlled, size is adjustable, suitability is good, prepared by applicable big area.And prepared super-hydrophobic woodenware film has the characteristics such as self-cleaning property, antifouling properties, hydrophobic, oleophobic.
Embodiment
Although the present invention describes with reference to specific embodiment, this description not meaning that is construed as limiting the present invention.With reference to description of the invention, other of the disclosed embodiments change, and all can expect for those skilled in the art, and this variation should belong in affiliated claim limited range.
Embodiment 1
A kind of transparent hydrophobic coating of the present embodiment
Its preparation method: comprise the steps:
1) in stirring tank, add matrix resin and filler, stir, make slurry;
2) with sand mill, above-mentioned slurry is ground;
3) add low surface energy material, and add loaded nano silicon dioxide gel, ultrasonic wave fully to mix 30 minutes, obtain transparent hydrophobic coating.
The preparation method of described nano silicon dioxide sol: comprise the steps:
(1) 5ml ammoniacal liquor and 50ml absolute ethyl alcohol and stirring are mixed, when stirring, dropwise add 5ml tetraethoxy, continue afterwards to stir at ambient temperature, obtain the stable all colloidal sol of nano-silicon dioxide particle uniformly of size that comprises;
(2) Microcrystalline Cellulose is joined in the sulphuric acid soln of 60% concentration, at 50 ℃ of temperature, stir, make Microcrystalline Cellulose generation hydrolysis reaction, generate the nano-cellulose of 50-100nm particle diameter, by this nanofiber cellulose solution after distilled water repeatedly washs, through ultrasonication
0.5-1hour, make nano-cellulose gel;
(3) nano-cellulose is joined in the nano silicon dioxide sol that step (1) obtains, its proportioning is 1:1.5, in room temperature (25 ℃) magnetic agitation, after 0.5-1 hour, add the low surface energy material that accounts for solution quality 0.01-1%, continue to stir 0.5-1 hour, obtain the loaded nano silicon dioxide gel of super-hydrophobicity.
Embodiment 2
A kind of transparent hydrophobic coating of the present embodiment
Its preparation method is with implementing 1.
Embodiment 3
A kind of transparent hydrophobic coating of the present embodiment
Its preparation method is with implementing 1.
Embodiment 4
A kind of transparent hydrophobic coating of the present embodiment
Its preparation method is with implementing 1.
Embodiment 5
A kind of transparent hydrophobic coating of the present embodiment
Its preparation method is with implementing 1.
Nano-cellulose has special viscosity, becomes the character such as colloidality, suspension, stability and optical characteristics, and it can be used as carrier and the inductor of nano-silicon dioxide particle.The water dispersion of nano-cellulose has thixotropy, and can at any temperature, show excellent freeze-thaw stability and thermostability.The thixotropy and the thickening property that while utilizing nano-cellulose to disperse in water, have, can be used as thickening material and the emulsifying agent of water-based paint.
Therefore, nano-cellulose and low surface energy material are joined in nano silicon dioxide sol system, it is carried out to crosslinking Treatment and hydrophobically modified, the nano-silicon dioxide particle that great amount of hydroxy group is contained on the surface obtaining by sol gel reaction, can improve the wetting property of nano silicon dioxide sol system.
Claims (3)
1. a transparent hydrophobic woodwork coating, is characterized in that comprising following component:
Water dispersant type polyaminoester resin or water dispersive alkyd resin 20-50 part,
Nano silicon dioxide sol 4.5-25 part,
Nano-cellulose gel 3-16 part,
Octadecyl trichlorosilane alkane or tetrahydrochysene perfluor decyltrichlorosilane or stearic acid 0.1-1 part,
Nanomete talc powder or nano-calcium carbonate 0-45 part.
2. the preparation method of transparent hydrophobic woodwork coating as claimed in claim 1, comprises the following steps:
1) in stirring tank, add matrix resin and filler, stir, make slurry;
2) with sand mill, above-mentioned slurry is ground;
3) add low surface energy material, and add loaded nano silicon dioxide gel, ultrasonic wave fully to mix 30 minutes, obtain transparent hydrophobic coating.
3. the preparation method of transparent hydrophobic woodwork coating according to claim 2, is characterized in that the preparation method of described nano silicon dioxide sol: comprise the steps:
(1) 5ml ammoniacal liquor and 50ml absolute ethyl alcohol and stirring are mixed, when stirring, dropwise add 5ml tetraethoxy, continue afterwards to stir at ambient temperature, obtain the stable all colloidal sol of nano-silicon dioxide particle uniformly of size that comprises;
(2) Microcrystalline Cellulose is joined in the sulphuric acid soln of 60% concentration, at 50 ℃ of temperature, stir, make Microcrystalline Cellulose generation hydrolysis reaction, generate the nano-cellulose of 50-100nm particle diameter, by this nanofiber cellulose solution after distilled water repeatedly washs, through ultrasonication 0.5-1 hour, make nano-cellulose gel;
(3) nano-cellulose is joined in the nano silicon dioxide sol that step (1) obtains, its proportioning is 1:1.5, in room temperature (25 ℃) magnetic agitation, after 0.5-1 hour, add the low surface energy material that accounts for solution quality 0.01-1%, continue to stir 0.5-1 hour, obtain the loaded nano silicon dioxide gel of super-hydrophobicity.
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| CN201410006256.3A CN103756541B (en) | 2014-01-07 | 2014-01-07 | A kind of transparent hydrophobic woodwork coating and preparation method thereof |
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| CN104403541A (en) * | 2014-12-11 | 2015-03-11 | 广东朗法博涂装新材料科技有限公司 | Self-cleaning water-based woodware finish paint and preparation method thereof |
| CN105038495A (en) * | 2015-07-08 | 2015-11-11 | 当涂县科辉商贸有限公司 | Nanometer cellulose-loaded super thermal-insulation heat-preserving paint and preparation method thereof |
| CN105131830A (en) * | 2015-09-24 | 2015-12-09 | 苏州智见新材料技术有限公司 | Long-acting nano hydrophobic coating composition and preparation method thereof |
| CN105153819A (en) * | 2015-10-09 | 2015-12-16 | 南京林业大学 | Method for preparing superhydrophobic coating by nano-crystalline cellulose template method |
| CN105219246A (en) * | 2015-11-05 | 2016-01-06 | 广东顺德漆强化工科技有限公司 | A kind of water-based warms up wooden priming paint and preparation method thereof |
| CN105670393A (en) * | 2016-04-22 | 2016-06-15 | 南京林业大学 | Preparation of super-hydrophobic coating with nanocrystalline cellulose/silicon dioxide composite template process |
| CN105802305A (en) * | 2016-03-25 | 2016-07-27 | 徐洁 | Preparation method of coating for indoor woodware |
| CN105802296A (en) * | 2016-03-25 | 2016-07-27 | 徐洁 | Coating for indoor woodware |
| CN105908502A (en) * | 2016-06-23 | 2016-08-31 | 杭州余杭兴隆绸厂 | Wash-free agent and wash-free fabric treated by adopting same |
| CN106221539A (en) * | 2016-08-24 | 2016-12-14 | 安徽美景工艺品有限公司 | A kind of Pulvis Talci guaifenesin rattan handicraft aqueous polyurethane corrosion resistant coating and preparation method thereof |
| CN106349909A (en) * | 2016-08-31 | 2017-01-25 | 阜南县天亿工艺品有限公司 | Environmental-friendly mosquito-repellent waterborne polyurethane anti-corrosion paint for cane handicraft and preparation method thereof |
| CN106366886A (en) * | 2016-08-31 | 2017-02-01 | 阜南县大自然工艺品有限公司 | Waterborne polyurethane anticorrosive paint for moisture-proof and mothproof rattan craftwork and preparation method thereof |
| CN106366889A (en) * | 2016-08-31 | 2017-02-01 | 阜南县大自然工艺品有限公司 | Waterborne polyurethane antiseptic paint for hydrolyzed collagen compound rattan handiwork and preparation method of waterborne polyurethane antiseptic paint |
| CN106366888A (en) * | 2016-08-31 | 2017-02-01 | 阜南县天亿工艺品有限公司 | Waterborne polyurethane antiseptic paint for yellowing-and-ageing resistant vine artware and preparation method of waterborne polyurethane antiseptic paint |
| CN107011776A (en) * | 2017-05-11 | 2017-08-04 | 冯智勇 | A kind of super-hydrophobic alkyd protective paint that can be self-cleaning |
| CN107011741A (en) * | 2017-06-09 | 2017-08-04 | 杭州德纳涂料有限公司 | A kind of water paint and its preparation technology |
| CN107352549A (en) * | 2017-08-30 | 2017-11-17 | 张振 | A kind of preparation method of hollow glass micropearl |
| CN107384102A (en) * | 2017-08-03 | 2017-11-24 | 合肥隆延科技有限公司 | Environment-friendly type woodwork coating |
| CN107474680A (en) * | 2017-08-03 | 2017-12-15 | 合肥隆延科技有限公司 | Environment-friendly type antibiotic water-borne wood coating |
| CN108047849A (en) * | 2017-12-21 | 2018-05-18 | 金华联创塑粉科技有限公司 | A kind of low formaldehyde environment-friendly type coating and preparation method thereof |
| CN108068182A (en) * | 2017-12-21 | 2018-05-25 | 安徽明豪实木家俱有限公司 | A kind of solid wood furniture surface hydrophobicity method of modifying |
| CN108485452A (en) * | 2018-04-27 | 2018-09-04 | 金华联创塑粉科技有限公司 | A kind of water paint and preparation method thereof suitable for woodwork |
| CN109575696A (en) * | 2018-06-27 | 2019-04-05 | 宜华生活科技股份有限公司 | Woodwork nano-cellulose-polyurethane iris schemochrome coating preparation method |
| CN115651472A (en) * | 2022-09-27 | 2023-01-31 | 惠州市德恩思化学有限公司 | Super-hydrophobic coating construction method based on nano microcrystalline solution and super-hydrophobic coating |
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| CN105670393B (en) * | 2016-04-22 | 2018-07-31 | 南京林业大学 | Cellulose nanocrystal body/silica composite shuttering method prepares super-hydrophobic coat |
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| CN107474680A (en) * | 2017-08-03 | 2017-12-15 | 合肥隆延科技有限公司 | Environment-friendly type antibiotic water-borne wood coating |
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| CN115651472A (en) * | 2022-09-27 | 2023-01-31 | 惠州市德恩思化学有限公司 | Super-hydrophobic coating construction method based on nano microcrystalline solution and super-hydrophobic coating |
| CN115651472B (en) * | 2022-09-27 | 2023-10-20 | 惠州市德恩思化学有限公司 | Super-hydrophobic coating construction method based on nano microcrystalline solution and super-hydrophobic coating |
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