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Method for producing TZ-MPA spray polyurea waterproofing coating

A technology of TZ-MPA and waterproof coatings, applied in antifouling/underwater coatings, polyurea/polyurethane coatings, coatings, etc., can solve the problems of long curing time, thin thickness, sagging, etc., and achieve convenient and efficient construction high effect

Inactive Publication Date: 2009-11-25
曹天志 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, there are common shortcomings such as solvent pollution, thin thickness, sagging, and long curing time in the traditional spraying process.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] A production method of TZ-MPA spraying polyurea waterproof coating, A component: PPG-2000, MDI, NCO; B component: amino-terminated polyether JEFFAMINE@T-5000, DETDA-diethyltoluenediamine, Pigment, kaolin (1250 mesh) and pottery clay are produced according to the ratio of 1:2 by weight:

[0016] A component:

[0017] Put the isocyanate into a reaction kettle equipped with a stirrer, a thermometer, a feeding port, and a nitrogen inlet, and heat it to 50-60°C. After it is completely melted, add the completely dried and purified polyether polyol, and keep it warm at 80±5°C React for 3-4 hours, test the NCO% stability by titration with electricity, discharge, filter, and store in airtight packaging.

[0018] B component:

[0019] Grind the dried pigments and fillers with an appropriate amount of amino polyether on a three-roll mill, then put the ground slurry into the reaction kettle, and then add the remaining amino-terminated polyether, amino chain extender and other add...

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PUM

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Abstract

The invention discloses a method for producing a spray polyurea waterproofing coating. The spray polyurea waterproofing coating is produced from a component A consisting of PPG-2000, MDI and NCO and a component B consisting of amino terminated polyether JEFFAMINE at T-5000, DETDA-diethylmethane diamine, pigment, kaolin (1,250 meshes) and earthware clay in a weight ratio of 1:2, has no catalyst and quick curing, can be sprayed on any curved surface, inclined plane and vertical plane, does not generate sagging phenomenon, is not sensitive to water content and moisture, is not influenced by environmental temperature and moisture in construction, has 100 percent of solid content, does not contain any volatile organic compound (VOC), is environment-friendly, can be sprayed or poured in a volume ratio of 1:1, has the one-time construction thickness range from hundreds of microns to several centimeters, overcomes the disadvantages of the prior multiple construction, uses a whole set of equipment, and has convenient construction and high efficiency.

Description

technical field [0001] The invention relates to a building waterproof material. Background technique [0002] The current traditional spray polyurethane is an elastomer material formed by the reaction of isocyanate component (A component) and resin component (R or B component). Isocyanates can be both aromatic and aliphatic. The B component must be composed of petroleum-terminated hydroxyl resins (such as diols, triols, polyols, polyols, etc.) and hydroxyl-terminated (aromatic or aliphatic) chain extenders. In hydroxyl-terminated resins, Must contain a catalyst to increase the reactivity. In addition, there are common disadvantages in the traditional spraying process such as solvent pollution, thin thickness, sagging, and long curing time. Contents of the invention [0003] The object of the present invention is to provide a kind of production method of TZ-MPA spray polyurea waterproof coating. [0004] The technical solution adopted in the present invention is: a prod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/02C09D5/16C08G18/76C08G18/48
Inventor 曹天志曹媛媛孟祥波高晶孙国华曹连杰闫锋孙德峰孙滨王霞
Owner 曹天志
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