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A kind of preparation method and application of waterproofing agent for fiberboard

A technology of waterproofing agent and sheet material, applied in the direction of coating, etc., can solve the problems of high cost, short service life, human injury, etc., and achieve the effect of low cost, long service life and high production efficiency

Active Publication Date: 2018-06-26
江西中竹生物质科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the present invention is to provide a preparation method and application of a waterproofing agent for fiber boards, which can effectively solve the problem of human body damage, high cost, and use of waterproofing agents for fiber boards. Short-lived technical issues

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Hydrophobic hydrophobic particle and polylactic acid composite waterproofing agent, its preparation method is:

[0018] (1) Preparation of hydrophobic particles:

[0019] Add 1.8-2.2g of tetraethyl orthosilicate and 2-7g of dodecyltrimethylsilane (preferably 6g) into 13-30ml of ethanol (preferably 20ml-25ml), and then gradually add ammonia with a mass concentration of 28% 6-9ml aqueous solution, stirred at room temperature for 5-8 hours, evaporated to dryness under reduced pressure to obtain hydrophobic particles;

[0020] (2), mixed to make waterproofing agent:

[0021] Add 5-20g of the hydrophobic particles into 90-110ml of the dispersant, stir evenly, and ultrasonically treat for 25-35min to form the waterproofing agent.

[0022] It should be noted that in all embodiments of the present invention, the prepared hydrophobic particles can be added to any dispersant that is soluble (soluble to the prepared hydrophobic particles), such as ethanol, polymer tetrahydrofura...

Embodiment 2

[0027] In the specific implementation of the present invention, the prepared waterproofing agent is a composite waterproofing agent of hydrophobic particles and polylactic acid, and its preparation method comprises the following steps:

[0028] (1) Preparation of hydrophobic particles:

[0029] Add 2 g of tetraethyl orthosilicate and 6 g of dodecyltrimethylsilane into 25 ml of ethanol, then gradually add 6 ml of ammonia solution with a mass concentration of 28%, stir at room temperature for 5 hours, and evaporate to dryness under reduced pressure to obtain hydrophobic particles;

[0030] (2), preparation of dispersant:

[0031] The dispersant is a polylactic acid-dichloromethane solution, and the preparation method is to add 2-3g of polylactic acid particles into 90-110ml of dichloromethane, stir at room temperature to dissolve completely and evenly, and form a polylactic acid-dichloromethane solution;

[0032] (3), mixed to make waterproofing agent:

[0033] Add 10 g of the...

Embodiment 3

[0035] In the specific implementation of the present invention, the waterproofing agent is a modified fluorosilicone resin waterproofing agent with hydrophobic particles, and the preparation method is realized by the following steps:

[0036] (1) Preparation of hydrophobic particles:

[0037] Add 1.8-2.2g of tetraethyl orthosilicate and 2-7g of dodecyltrimethylsilane into 13-30ml of ethanol, then gradually add 7-9ml of ammonia solution with a mass concentration of 28%, and stir at room temperature for 5-8 hours. Evaporate to dryness under reduced pressure to obtain hydrophobic particles;

[0038] (2), preparation of dispersant::

[0039] Dilute 100ml of fluorosilicone resin emulsion KT-800 with 300ml of water, then add 0.6-2.0g of polyoxyethylene new phenyl ether or 0.3-1.0g of cetyltrimethylammonium chloride, or dodecylbenzenesulfonate 0.3-0.6 g of sodium bicarbonate, stirred at 800 rpm for 1 hour to obtain a diluted fluorosilicone resin emulsion as a dispersant;

[0040] ...

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PUM

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Abstract

The invention relates to a preparation method and application of a waterproofing agent for fiberboards, and can effectively solve the technical problems of injuries to human bodies, higher cost and short service life in the waterproofing agent for fiberboards. The method comprises the following steps: adding 1.8-2.2g of tetraethyl orthosilicate and 2-7g of dodecyltrimethyl silane into 13-30ml of ethanol, gradually and dropwisely adding 6-9ml of 28 wt% aqua ammonia, stirring at room temperature for 5-8 hours, and drying by distillation under reduced pressure, thereby obtaining hydrophobic particles; and adding 5-20g of the hydrophobic particles into 90-110ml of dispersing agent, stirring uniformly, and carrying out ultrasonic treatment for 25-35 minutes, thereby obtaining the waterproofing agent. The waterproofing agent prepared by the method can be coated on a fiberboard, thereby effectively prolonging the waterproofness and service life of the fiberboard. The preparation method is simple and easy to operate, has the advantages of abundant raw materials, high production efficiency, high product quality, low cost, environment friendliness, long service life and huge economic and social benefits.

Description

technical field [0001] The invention relates to a method for manufacturing a fiberboard waterproofing agent in the chemical industry, in particular to a method for preparing a waterproofing agent for fiberboards and its application. Background technique [0002] With the development of the construction industry and home decoration industry, people have higher and higher requirements for decoration materials. The methods generally used for building waterproofing mainly include coil waterproofing materials and coating waterproof coatings. Among them, the waterproof coating of fiberboard is easy to use and is relatively common. The waterproof coatings for fiberboard mainly include polyurethane waterproof coatings, polyvinyl chloride, and acrylic waterproof coatings. However, due to the compatibility of their components and the problems in their preparation methods, there are the following problems in use: [0003] (1) Not environmentally friendly. General coatings use organi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D1/00C09D7/61C09D7/63C09D183/08
CPCC08K2201/011C08L2205/035C09D1/00C09D7/61C09D7/63C09D7/65C09D183/08C08L27/12C08L33/08C08K13/02C08K3/36C08K2003/265C08K3/34C08K5/544
Inventor 刘洁贺文明孟艳芳徐明朱秋荣齐静康瑛珂
Owner 江西中竹生物质科技有限公司