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Double-composition polyurethane waterproof paint and preparation method thereof

A two-component polyurethane, waterproof coating technology, applied in the direction of polyurea/polyurethane coatings, coatings, etc., can solve the problems of polluted environment, poor performance, unsuitable for long-term waterproof needs, etc., to achieve the effect of simple process and easy availability of raw materials

Active Publication Date: 2010-07-07
广州市台实防水补强有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] There are many kinds of existing waterproof coatings, such as: polymer cement waterproof coatings, which have poor comprehensive performance and are not suitable for long-term waterproofing needs; emulsified asphalt waterproof coatings, which have low quality indicators and poor performance; existing polyurethane waterproof coatings, due to the use of Amine (such as MOCA) cross-linking curing agent is toxic and pollutes the environment. Asphalt-based 911 can only be a black product

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Add 180 kg of 3050 polyether, 180 kg of N220 polyether, 300 kg of N210 polyether, and 4 kg of citric acid into the reaction kettle, stir and heat up, add 300 kg of TDI before 60°C, raise the temperature to 80°C, and keep the temperature at 76°C for 2 hours Cool down to 50°C to get component A; add 100 kg of coumarone, 100 kg of C9 petroleum resin, 180 kg of water, 100 kg of calcium hydroxide, 500 kg of light calcium carbonate, and 20 kg of iron oxide into the mixer and stir Evenly, put it into a three-roll machine and grind it to a fineness of 50 μm to obtain component B; mix components A and B evenly at a weight ratio of 1:2, and cure for 24 hours to obtain this product.

Embodiment 2

[0047] Add 300 kg of 3050 polyether, 499 kg of N220 polyether, 100 kg of N210 polyether, and 1 kg of citric acid into the reaction kettle, stir and raise the temperature, add 100 kg of TMDI before 60°C, raise the temperature to 80°C, and keep the temperature at 77°C for 2.5 hours Cool down to 50°C to get component A; add 150 kg of coumarone, 150 kg of C9 petroleum resin, 100 kg of water, 200 kg of organosiloxane, 300 kg of talcum powder, and 100 kg of chromium oxide green into the mixer and stir Evenly, put it into a three-roll machine and grind it to a fineness of 49 μm to obtain component B; mix components A and B at a weight ratio of 0.5:2.5, and cure for 24 hours to obtain this product.

Embodiment 3

[0049] Add 600 kg of 3050 polyether, 190 kg of N220 polyether, 100 kg of N210 polyether, and 5 kg of tartaric acid into the reaction kettle, stir and raise the temperature, add 105 kg of PAPI before 60°C, raise the temperature to 80°C, and keep the temperature at 78°C for 3 hours to cool down Component A is obtained at 50°C; add 370 kg of coumarone, 100 kg of C9 petroleum resin, 100 kg of water, 100 kg of polyether, 300 kg of heavy calcium carbonate, and 30 kg of tartrazine into the mixer and stir evenly. Put it into a three-roll machine and grind it to a fineness of 48 μm to obtain component B; mix components A and B evenly at a weight ratio of 0.5:1.5, and cure for 24 hours to obtain this product.

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PUM

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Abstract

The invention discloses a double-composition polyurethane waterproof paint which includes composition A and B; the composition A consists of 18-60% of trihydroxy polyoxypropylene ether with molecular weight of 3000, 18-60% of dihydroxy polyoxypropylene ether with molecular weight of 2000, 10-30% of dihydroxy polyoxypropylene ether with molecular weight of 1000, 10-30% of organic isocyanates and 0.1-10% of inhibitor; composition B consists of 10-37% of liquid Coumarone, 10-37% of C9 petroleum resin, 10- 37% of water, 10-20% of antifoam, 30-50% of filler and 2-10% of pigment. The waterproof paint has good waterproof property, avoids the toxicity of amine crosslink curing agent, has good softening effect, facilitates improving solid content, and has simple manufacturing process and good source material availability.

Description

technical field [0001] The invention relates to a building waterproof material, in particular to a two-component polyurethane waterproof coating and a manufacturing method thereof. Background technique [0002] There are many kinds of existing waterproof coatings, such as: polymer cement waterproof coatings, which have poor comprehensive performance and are not suitable for long-term waterproofing needs; emulsified asphalt waterproof coatings, which have low quality indicators and poor performance; existing polyurethane waterproof coatings, due to the use of Amine (such as MOCA) cross-linking curing agent is toxic and pollutes the environment. Asphalt-based 911 can only be a black product. Contents of the invention [0003] The purpose of the present invention is to provide a two-component polyurethane waterproof coating, which uses water as a cross-linking curing agent to avoid the problem of amines, and can be made into a colored waterproof layer, which is waterproof and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/08C09D5/00
Inventor 邓思荣
Owner 广州市台实防水补强有限公司
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