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Waterborne polyurethane waterproofing paint

A water-based polyurethane and waterproof coating technology, applied in the coating field, can solve problems such as performance degradation, easy generation of bubbles, construction trouble, etc., and achieve the effects of high elongation at break, good aging resistance, and good waterproof effect.

Active Publication Date: 2014-01-29
上海鸿鹄化工科技有限公司
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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, some have complex construction operations and poor performance; some have poor waterproof effect and poor weather resistance; It is easy to produce bubbles and the surface gloss is not good, so it is necessary to produce a high-performance waterproof coating

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A kind of waterborne polyurethane waterproof coating, it is made up of the raw material of following parts by weight (kg):

[0016] Water-based polyurethane resin 50, ethylene glycol ether acetate 8, polytetrafluoroethylene 230, actinolite powder 15, sodium metasilicate 3, sodium dodecylsulfonate 1, polytetrahydrofuran ether glycol 2, dodecyl Trimethylammonium chloride 1, deionized water 10, bonding aid 10;

[0017] Described bonding aid is made up of the raw material of following weight part:

[0018] Polyvinyl acetate emulsion 40, polyvinyl alcohol 10, Panax notoginseng powder 3, carbomer resin 6, N-ethyl-o, p-toluenesulfonamide 0.5, sodium aluminosilicate 3, appropriate amount of water;

[0019] Mix the above-mentioned sodium aluminosilicate with polyvinyl alcohol, preheat to 40°C, ball mill for 15 minutes, add to water 5 times the weight of the mixture, heat to 85°C, stir well, add Panax notoginseng powder and Carboresin, Raise the temperature to 120°C, stir until...

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Abstract

The invention discloses a waterborne polyurethane waterproofing paint, which is composed of the following raw materials in parts by weight: 40-50 parts of waterborne polyurethane resin, 5-8 parts of 2-ethoxyethyl acetate, 20-30 parts of teflon, 10-15 parts of actinolite powder, 2-3 parts of sodium metasilicate, 1-2 parts of sodium dodecyl sulfate, 2-3 parts of poly-(tetramethylene ether) glycol, 1-2 parts of dodecyl trimethyl ammonium chloride, 5-10 parts of deionized water, and 7-10 parts of a bonding aid. The waterproofing paint disclosed by the invention is non-toxic and tasteless, and does not pollute the environment, therefore, the waterproofing paint is green and environmental-friendly; the waterproofing paint is good in weathering resistance, does not flow at high temperature and does not crack at low temperature; and the waterproofing paint is good in aging resistance, high in elongation at break, and good in waterproofing effect.

Description

technical field [0001] The invention mainly relates to a coating, in particular to a water-based polyurethane waterproof coating. Background technique [0002] There are many kinds of existing waterproof coatings, some have complex construction operations and poor performance; some have poor waterproof effect and poor weather resistance; It is easy to produce bubbles and the surface gloss is not good, so it is necessary to produce a high-performance waterproof coating. Contents of the invention [0003] The purpose of the present invention is to provide a waterborne polyurethane waterproof coating. [0004] The present invention is achieved through the following technical solutions: [0005] A kind of water-based polyurethane waterproof coating, it is made up of the raw material of following weight part: [0006] Water-based polyurethane resin 40-50, ethylene glycol ether acetate 5-8, polytetrafluoroethylene 20-30, actinolite powder 10-15, sodium metasilicate 2-...

Claims

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Application Information

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IPC IPC(8): C09D175/04C09D127/18C09D7/12
Inventor 鲁明
Owner 上海鸿鹄化工科技有限公司
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