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Preparation method of bamboo waterproof and mildew-proof coating

A waterproof and mildew-proof, coating technology, used in anti-fouling/underwater coatings, anti-corrosion coatings, alkali metal silicate coatings, etc. and other problems to achieve the effect of prolonging the anti-mildew aging, improving the anti-loss performance, and preventing the infiltration of water.

Pending Publication Date: 2020-08-11
泉州市康佑佳莲涂料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The main technical problem to be solved by the present invention is to provide a preparation of bamboo waterproof and mildew-proof coating for the defect that the anti-mold component in the current common bamboo waterproof and mildew-proof coating is easy to get wet and lose, resulting in the anti-mold performance not reaching the expected effect. method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0053] (1) Preparation of silicone gel antifungal additives:

[0054] Mix tetraethyl orthosilicate, absolute ethanol and deionized water at a mass ratio of 2:7:11 and put them into a beaker, then move the beaker into a water bath, heat up to 70-80°C, and add Adjust the pH to 3-4 with hydrochloric acid, and stir for 30-40 minutes;

[0055] After the above stirring reaction is completed, continue to stir at 50-60°C, and slowly add silver nitrate solution with a concentration of 1mol / L and ethyl orthosilicate to the beaker under stirring. 3-Aminopropyltriethoxysilane with 50% ester quality, and continuously stirred for 4-6 hours to obtain a silicone gel anti-mold additive;

[0056] (2) Preparation of anti-loss antifungal agent:

[0057]Weigh the nano halloysite and put it into the reaction eggplant-shaped bottle, and vacuum the reaction eggplant-shaped bottle with a vacuum pump, so that the vacuum degree in the eggplant-shaped bottle reaches 100-200Pa, keep the vacuum for 30-40...

example 1

[0067] (1) Preparation of silicone gel antifungal additives:

[0068] Mix tetraethyl orthosilicate, absolute ethanol and deionized water at a mass ratio of 2:7:11 and put them into a beaker, then move the beaker into a water bath, heat up to 70°C, and add hydrochloric acid to the beaker to adjust pH to 3, stirred for 30 minutes;

[0069] After the above stirring reaction is completed, continue to stir at 50°C, and slowly add silver nitrate solution with a concentration of 1mol / L twice the mass of tetraethyl orthosilicate and 50% of the mass of tetraethyl orthosilicate to the beaker under stirring. 3-aminopropyltriethoxysilane, continuously stirred and reacted for 4h, to obtain a silicone gel anti-mildew additive;

[0070] (2) Preparation of anti-loss antifungal agent:

[0071] Weigh the nano halloysite and put it into the reaction eggplant-shaped bottle, and use a vacuum pump to evacuate the reaction eggplant-shaped bottle so that the vacuum degree in the eggplant-shaped bot...

example 2

[0081] (1) Preparation of silicone gel antifungal additives:

[0082] Mix ethyl orthosilicate, absolute ethanol and deionized water in a mass ratio of 2:7:11 and put them into a beaker, then move the beaker into a water bath, heat up to 75°C, and add hydrochloric acid to the beaker to adjust pH to 3, stirred for 35 minutes;

[0083] After the above stirring reaction is completed, continue to stir at 55°C, and slowly add silver nitrate solution with a concentration of 1mol / L three times the mass of tetraethyl orthosilicate to the beaker under stirring and 50% of the mass of tetraethyl orthosilicate 3-aminopropyltriethoxysilane, continuously stirred and reacted for 5h, to obtain a silicone gel anti-mildew additive;

[0084] (2) Preparation of anti-loss antifungal agent:

[0085] Weigh the nano halloysite and put it into the reaction eggplant-shaped bottle, and use a vacuum pump to evacuate the reaction eggplant-shaped bottle so that the vacuum degree in the eggplant-shaped bot...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention relates to a bamboo waterproof anticorrosive coating and a preparation method thereof, and belongs to the technical field of bamboo protection. According to the invention, a self-made swelling agent is used for swelling in an amorphous region of cellulose; permeation of the waterproof anticorrosive coating is facilitated; after coating infiltration, metal silver ions can be firmly fixed in bamboo wood by silica gel; the loss resistance of a mildew preventive is improved; the protection performance of the bamboo material on mould is improved through the metal silver ions; nano halloysite particles are used as a carrier; the loss resistance is further achieved; in addition, sodium silicate reacts with hydrochloric acid and is heated and decomposed to generate nano silicon dioxide particles; nanometer silicon dioxide particles are embedded into the microstructure of bamboo fibers, so that bamboo density is increased, water penetration is prevented. Meanwhile, a large numberof nano silicon dioxide particles are bonded to bamboo fibers, micro rough protrusions are formed on the surfaces and the interiors of the bamboo fibers, the contact angle between the bamboo and wateris increased, a hydrophobic interface is formed, and the anti-corrosion and waterproof performance of bamboo is improved.

Description

technical field [0001] The invention relates to a preparation method of a waterproof and mildew-proof paint for bamboo, which belongs to the technical field of bamboo protection. Background technique [0002] With the increasing scarcity of bamboo resources in our country, abundant resources, short production cycle and renewable bamboo resources [0003] It is becoming an important source of wood raw materials. However, due to the fact that bamboo contains more sugar, starch, and protein [0004] During storage, transportation and use, it is easy to soak in water and cause mildew, discoloration, insects and decay, which affects the processing and utilization of bamboo, and even causes great economic losses. [0005] At present, the anti-mold components in the common bamboo waterproof and anti-mold coatings are easy to get wet and lose, resulting in the anti-mold performance not reaching the expected effect. [0006] Therefore, in order to solve the above-mentioned technic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/04C09D5/14C09D5/08C09D7/63
CPCC09D1/04C09D5/08C09D5/14C09D7/63
Inventor 雷春艳
Owner 泉州市康佑佳莲涂料科技有限公司
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