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High-adhesive-force polyurethane building water-resistant paint

A technology for building waterproofing and high adhesion, applied in the field of building waterproofing coatings, can solve problems such as weak adhesion and adhesion, and achieve the effects of improving adhesion, improving interaction and improving compactness.

Active Publication Date: 2016-08-03
CHUZHOU GLOBAL POLYURETHANE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Polyurethane architectural waterproof coating has the characteristics of convenient construction, high reliability, and high cost performance, and is widely used in the field of architectural waterproofing. However, its adhesion, especially on rough surfaces, is weak. Therefore, how to further improve waterproof performance At the same time, enhancing the adhesion has become the focus of waterproof coating enterprises

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A kind of high-adhesion polyurethane building waterproof coating that the present invention proposes, its raw material comprises by weight: 54 parts of high-strength hydrophobic polyurethanes, 35 parts of alkyd resins, 18 parts of fillers, 1.5 parts of dibutyl phthalate, adhesion 0.5 parts of accelerator, 0.5 parts of dispersant, 0.3 parts of leveling agent, 0.2 parts of defoamer, 8 parts of flame retardant, 15 parts of antioxidant; among them, the filler is mixed with silica and glass fiber in a weight ratio of 7:2 be made of.

[0021] The preparation method of high-strength hydrophobic polyurethane is as follows:

[0022] S1. After mixing 95 parts of phenol and 88 parts of formaldehyde solution with a mass fraction of 40wt% in parts by weight, raise the temperature to 56°C, and then add 30 parts of ammonia water with a mass fraction of 37wt% dropwise for 28 minutes , continue to heat up to 66°C, keep warm for 23 minutes, add 14 parts of castor oil dropwise, the dropw...

Embodiment 2

[0025] A kind of high-adhesion polyurethane building waterproof coating that the present invention proposes, its raw material comprises by weight: 48 parts of high-strength hydrophobic polyurethanes, 38 parts of alkyd resins, 15 parts of fillers, 1.8 parts of dibutyl phthalate, adhesion 0.2 parts of accelerator, 0.8 parts of dispersant, 0.1 part of leveling agent, 0.4 parts of defoamer, 5 parts of flame retardant, 20 parts of antioxidant; among them, the filler is mixed with silica and glass fiber in a weight ratio of 4:5 be made of.

[0026] The preparation method of high-strength hydrophobic polyurethane is as follows:

[0027] S1. After mixing 90 parts of phenol and 92 parts of formaldehyde solution with a mass fraction of 36wt% in parts by weight, raise the temperature to 58°C, and then add 28 parts of ammonia water with a mass fraction of 40wt% dropwise for 26 minutes , continue to heat up to 70°C, keep warm for 20 minutes, add 17 parts of castor oil dropwise, dropwise f...

Embodiment 3

[0030] A kind of high-adhesion polyurethane building waterproof coating that the present invention proposes, its raw material comprises by weight: 52 parts of high-strength hydrophobic polyurethanes, 36 parts of alkyd resins, 17 parts of fillers, 1.6 parts of dibutyl phthalate, adhesion 0.4 parts of accelerator, 0.6 parts of dispersant, 0.2 parts of leveling agent, 0.3 parts of defoamer, 7 parts of flame retardant, 16 parts of antioxidant; among them, the filler is mixed with silica and glass fiber in a weight ratio of 6:3 be made of.

[0031] The preparation method of high-strength hydrophobic polyurethane is as follows:

[0032] S1. After mixing 94 parts of phenol and 89 parts of formaldehyde solution with a mass fraction of 38wt% in parts by weight, raise the temperature to 56°C, and then add 29 parts of ammonia water with a mass fraction of 38wt% dropwise for 27 minutes , continue to heat up to 67°C, keep warm for 22min, add 15 parts of castor oil dropwise, dropwise for 2...

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PUM

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Abstract

The invention discloses a high-adhesive-force polyurethane building water-resistant paint which is prepared from the following raw materials in parts by weight: 48-54 parts of high-strength hydrophobic polyurethane, 35-38 parts of alkyd resin, 15-18 parts of filler, 1.5-1.8 parts of dibutyl phthalate, 0.2-0.5 part of adhesive force improver, 0.5-0.8 part of dispersing agent, 0.1-0.3 part of leveling agent, 0.2-0.4 part of defoaming agent, 5-8 parts of flame retardant and 15-20 parts of antioxidant. The high-adhesive-force polyurethane building water-resistant paint disclosed by the invention has the advantages of excellent water resistance and excellent adhesive force.

Description

technical field [0001] The invention relates to the technical field of architectural waterproof coatings, in particular to a high-adhesion polyurethane architectural waterproof coating. Background technique [0002] With the continuous advancement of urbanization in our country, the construction of infrastructure such as buildings and housing projects has developed rapidly. Short construction periods and high-quality buildings have become the pursuit of more and more construction companies. Building waterproofing is a link that requires special attention in the engineering field, otherwise problems such as leakage and humidity will greatly deteriorate the living environment and reduce the service life of the building. The most economical and convenient method for building waterproofing is to use architectural waterproof coatings to coat the building surface, which has extremely high requirements for its reliability and durability. Polyurethane architectural waterproof coati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/14C09D167/08C09D7/12C08G18/73C08G18/67C08G18/65C08G18/32C08G8/32
CPCC08G8/32C08G18/6517C08G18/6705C08G18/73C09D7/61C09D7/63C09D7/70C09D175/14C08L67/08C08K13/04C08K7/14C08K3/36C08K5/12
Inventor 龚文祥
Owner CHUZHOU GLOBAL POLYURETHANE TECH CO LTD
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