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Hydrophobic flame-retardant coating and preparation process thereof

A flame retardant coating and hydrophobic technology, applied in fire retardant coatings, polyurea/polyurethane coatings, coatings, etc., can solve the problems of high flame retardant effect, poor compatibility, easy agglomeration, etc., and achieve high impact resistance and resistance. The effect of abrasion resistance, high flame retardant properties, high abrasion resistance and impact resistance

Active Publication Date: 2020-06-19
四川天道易科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the process of building material decoration, in order to prolong the service life of building materials and improve safety performance, a layer of waterproof and flame-retardant coating is usually directly coated on the surface of building materials. At the same time, flame retardant coatings can achieve the flame retardant performance of building materials and improve safety, but the existing flame retardant coatings usually introduce phosphate ester flame retardants into the coatings, and improve their flame retardant through the role of phosphate ester flame retardants. performance, but because the phosphate ester flame retardant alone can not achieve a high flame retardant effect, and the direct addition of the flame retardant is likely to cause uneven dispersion of the flame retardant, thereby affecting the flame retardant effect
[0003] In order to prevent the surface coating of building materials from peeling off under the action of external force, wear-resistant coatings are usually added to the coatings in the prior art to improve the impact resistance and wear resistance of the coatings. However, since wear-resistant coatings are usually inorganic fillers, inorganic filler particles When it is finer, it is easy to agglomerate, and the compatibility with polar organic matter is poor, which affects the dispersion uniformity of the filler, and then affects the performance of the coating

Method used

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  • Hydrophobic flame-retardant coating and preparation process thereof
  • Hydrophobic flame-retardant coating and preparation process thereof
  • Hydrophobic flame-retardant coating and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The specific preparation process of hydrophobic silica gel resin is as follows:

[0027] Step 1. Weigh 0.1mol of 3-aminopropylmethyldimethoxysilane and 400mL of acetone into the reaction vessel at the same time, then add 0.21mol of methyl acrylate dropwise to it, control the dropping rate to 2mL / min, and drop completely Afterwards, stir and react at constant temperature for 3-4 hours, and then carry out vacuum distillation to obtain branched oxysilane, and the reaction structure formula is as follows;

[0028]

[0029] Step 2. Add 10g of boric acid into 200mL of water, heat up to 100°C, stir and dissolve, and reflux. After the boric acid is completely dissolved, add 31g of ethanolamine to it, and reflux for 18 hours. After cooling down to room temperature, filter, wash and dry to obtain borides;

[0030] Step 3. Add 5.7 g of the boride prepared in step 2 into 100 ml of ethanol solution and stir to dissolve, then add 10 g of the branched oxysilane prepared in step 1 d...

Embodiment 2

[0035] The specific preparation process of hydrophobic silica gel resin is as follows:

[0036] Step 1. Weigh 0.1mol of 3-aminopropylmethyldimethoxysilane and 400mL of acetone into the reaction vessel at the same time, then add 0.21mol of methyl acrylate dropwise to it, control the dropping rate to 2mL / min, and drop completely Afterwards, stir and react at constant temperature for 3-4 hours, and then carry out vacuum distillation to obtain branched oxysilane, and the reaction structure formula is as follows;

[0037]

[0038] Step 2. Add 10g of boric acid into 200mL of water, heat up to 100°C, stir and dissolve, and reflux. After the boric acid is completely dissolved, add 31g of ethanolamine to it, and reflux for 18 hours. After cooling down to room temperature, filter, wash and dry to obtain borides;

[0039] Step 3. Add 2.85g of the boride prepared in step 2 into 100ml ethanol solution and stir to dissolve, then add 10g of the branched oxysilane prepared in step 1 dropwi...

Embodiment 3

[0044] The specific preparation process of hydrophobic silica gel resin is as follows:

[0045] Step 1. Weigh 0.1mol of 3-aminopropylmethyldimethoxysilane and 400mL of acetone into the reaction vessel at the same time, then add 0.21mol of methyl acrylate dropwise to it, control the dropping rate to 2mL / min, and drop completely Afterwards, stir and react at constant temperature for 3-4 hours, and then carry out vacuum distillation to obtain branched oxysilane, and the reaction structure formula is as follows;

[0046]

[0047] Step 2. Add 12g of the boride prepared in step 2 into 400ml ethanol solution and stir to dissolve, then add 33.5g of the branched oxysilane prepared in step 1 dropwise into the reaction vessel, and control the dropping rate to 2mL / min. After the addition is complete, stir and react at constant temperature for 5-6 hours, and then carry out vacuum distillation to obtain aminooxysilane. The reaction structure is as follows;

[0048]

[0049] Step 4. A...

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Abstract

The invention discloses a hydrophobic flame-retardant coating. The hydrophobic flame-retardant coating comprises, by weight, 70 to 78 parts of a hydrophobic silica gel resin, 1 to 2 parts of a defoaming agent, 1 to 2 parts of a pigment filler, 9 to 11 parts of grafted calcium carbonate powder, 19 to 21 parts of toluene diisocynate and 37 to 39 parts of acetone. The hydrophobic silica gel resin used in the invention is formed by alternate compounding by siloxane bonds, and when toluene diisocynate is cross-linked to form a net-shaped structure, a large number of siloxane bonds are uniformly grafted on the surface of a formed paint film, so that the hydrophobic property of the surface of the paint film is realized.

Description

technical field [0001] The invention belongs to the field of paint preparation, and relates to a hydrophobic flame-retardant paint and a preparation process thereof. Background technique [0002] In the process of building material decoration, in order to prolong the service life of building materials and improve safety performance, a layer of waterproof and flame-retardant coating is usually directly coated on the surface of building materials. At the same time, flame retardant coatings can achieve the flame retardant performance of building materials and improve safety, but the existing flame retardant coatings usually introduce phosphate ester flame retardants into the coatings, and improve their flame retardant through the role of phosphate ester flame retardants. performance, but because the phosphate ester flame retardant alone cannot achieve a high flame retardant effect, and adding the flame retardant directly will easily cause uneven dispersion of the flame retardan...

Claims

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Application Information

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IPC IPC(8): C09D175/04C09D5/18C08G18/76C08G18/61C08G77/398
CPCC08G18/61C08G18/7614C08G77/398C08K2003/265C09D5/18C09D175/04C08K9/04C08K3/26
Inventor 陈家珺
Owner 四川天道易科技有限公司
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