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Waterborne polyurethane waterproof coating and production process thereof

A water-based polyurethane and waterproof coating technology, applied in the field of coatings, can solve the problems of high environmental and human hazards, harmful to human body, and coatings, and achieve the effects of no environmental pollution, good aging resistance, weather resistance and good waterproof effect

Inactive Publication Date: 2015-09-16
田福东
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the common problem of the polyurethane waterproof coatings currently on the market is that the coatings contain coal tar and toluene solvents that are harmful to the human body, which are very harmful to the environment and the human body.

Method used

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  • Waterborne polyurethane waterproof coating and production process thereof

Examples

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Effect test

Embodiment 1

[0023] The water-based polyurethane waterproof coating of the present invention comprises the following components in parts by weight: 25 parts of water-based polyurethane resin, 20 parts of ethylene glycol ethyl ether acetate, 1 part of polyglycol, 8 parts of diethylene glycol, dihydroxypropionic acid 7 parts, 4 parts of nano silicon dioxide, 1 part of tributyl phosphate, 15 parts of nano calcium carbonate, 6 parts of polydimethylsiloxane, 3 parts of high carbon alcohol, 4 parts of alcohol ester twelve, 40 parts of deionized water share.

[0024] The processing steps of preparation are as follows:

[0025] Mix the above ethylene glycol ether acetate with deionized water, heat at 60°C for 20 minutes, and cool to room temperature; add polyglycol, diethylene glycol, dihydroxypropionic acid, nano-silica, tributyl phosphate , stirring and dispersing at 600 rpm for 15 minutes; adjust the pH value to 7, add the remaining raw materials except the water-based polyurethane resin, stir...

Embodiment 2

[0027] The water-based polyurethane waterproof coating of the present invention comprises the following components in parts by weight: 35 parts of water-based polyurethane resin, 10 parts of ethylene glycol ethyl ether acetate, 10 parts of polyglycol, 2 parts of diethylene glycol, dihydroxypropionic acid 3 parts, 9 parts of nano-silica, 5 parts of tributyl phosphate, 5 parts of nano-talc powder, 2 parts of polymethylphenylsiloxane, 8 parts of dimethyl silicone oil, 12 parts of alcohol ester twelve, deionized 30 parts of water.

[0028] The processing steps of preparation are as follows:

[0029] Mix the above-mentioned ethylene glycol ethyl ether acetate with deionized water, heat at 80°C for 40 minutes, and cool to room temperature; add polyglycol, diethylene glycol, dihydroxypropionic acid, nano-silica, tributyl phosphate , stirring and dispersing at 600 rpm for 25 minutes; adjust the pH value to 8, add the remaining raw materials except the water-based polyurethane resin, ...

Embodiment 3

[0031] The water-based polyurethane waterproof coating of the present invention comprises the following components in parts by weight: 30 parts of water-based polyurethane resin, 25 parts of ethylene glycol ethyl ether acetate, 6 parts of polyglycol, 5 parts of diethylene glycol, dihydroxypropionic acid 5 parts, 6 parts of nano silicon dioxide, 3 parts of tributyl phosphate, 10 parts of nano mica powder, 4 parts of polyether modified organosiloxane, 6 parts of emulsified silicone oil, 8 parts of alcohol ester twelve, 35 parts of deionized water share.

[0032] The processing steps of preparation are as follows:

[0033] Mix the above-mentioned ethylene glycol ethyl ether acetate with deionized water, heat at 70°C for 30 minutes, and cool to room temperature; add polyglycol, diethylene glycol, dihydroxypropionic acid, nano-silica, tributyl phosphate , stirring and dispersing at 800 rpm for 20 minutes; adjust the pH value to 7, add the remaining raw materials except the water-b...

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Abstract

The invention discloses waterborne polyurethane waterproof coating and a production process thereof. The waterborne polyurethane waterproof coating comprises the following components in parts by weight: 25 to 35 parts of waterborne polyurethane resin, 10 to 20 parts of ethylene glycol monoethyl ether acetate, 1 to 10 parts of poly-dihydric alcohol, 2 to 8 parts of diglycol, 3 to 7 parts of dihydroxyl propionic acid, 4 to 9 parts of nano silica, 1 to 5 parts of tributyl phosphate, 5 to 15 parts of nanofiller, 2 to 6 parts of a flatting agent, 3 to 8 parts of a defoaming agent, 4 to 12 parts of a film-forming additive and 30 to 40 parts of deionized water. The waterborne polyurethane waterproof coating prepared by the method does not use an organic solvent, avoids environmental pollution, is environmentally friendly, has excellent weather resistance and waterproof effect, has high-glossiness coating and high ageing resistance, and is applicable in the fields of decoration and renovation of inner walls of kindergartens, houses, hotels and the like.

Description

technical field [0001] The invention relates to the field of coatings, in particular to a water-based polyurethane waterproof coating and a production process thereof. Background technique [0002] There are many kinds of existing waterproof coatings, some of which have complicated construction operations and poor performance; some have poor waterproof effect and poor weather resistance, and some require on-site ingredients. [0003] Polyurethane waterproof coating is a polyurethane resin containing hydrophilic groups in the molecular chain of polyurethane, which has a strong affinity with water. It can be dispersed in water and form a stable system by using a specific process. [0004] However, the ubiquitous problem of the polyurethane waterproof coatings currently on the market is that the coatings contain coal tar and toluene solvents that are harmful to the human body, which are very harmful to the environment and the human body. With the increasing awareness of enviro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D7/12
CPCC09D175/04C08K2201/011C08L2205/03C08L2205/035C08L83/04C08L71/00C08K13/02C08K2003/265C08K3/36C08K5/521C08K5/053C08K3/34
Inventor 田福东
Owner 田福东
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