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A kind of one-component high-iron polyurethane waterproof coating and its production process

A polyurethane waterproof, one-component technology, applied in the direction of polyurea/polyurethane coatings, coatings, etc., can solve the problems of short practical time, inconvenient use of high-speed two-component polyurethane waterproof coatings, dark bubbles and pinholes on the surface, etc. , to achieve the effect of long practical time, shortened curing time and good anti-aging effect

Active Publication Date: 2016-09-07
WEIFANG HONGYUAN WATERPROOF MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved in the present invention is to provide a single-component high-iron polyurethane waterproof coating and its production process in view of the shortcomings of the existing technology, which can effectively solve the inconvenient use of high-iron two-component polyurethane waterproof coatings and the presence of surface defects. Dark bubbles and pinholes, short practical time and other technical problems

Method used

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  • A kind of one-component high-iron polyurethane waterproof coating and its production process
  • A kind of one-component high-iron polyurethane waterproof coating and its production process
  • A kind of one-component high-iron polyurethane waterproof coating and its production process

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Experimental program
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Effect test

Embodiment 1

[0026] Embodiment 1: A kind of single-component high-iron polyurethane waterproof coating, calculated by weight, includes 21 parts of polyether DL-1000D with a hydroxyl value of 107, 9 parts of polyether DL-2000D with a hydroxyl value of 55.5 and 5 parts of hydroxyl A total of 35 parts polyether polyol, 10 parts of toluene diisocyanate (TDI-80), 15 parts of hydroxyl resin, 0.1 part of dispersant, 2 parts of iron red, heavy carbonic acid 16 parts of calcium, 10 parts of kaolin and 7 parts of light calcium carbonate, a total of 35 parts of pigments and fillers, 3.7 parts of common latent curing agent, 0.8 parts of chain extender 1,4-butanediol, and dibutyltin as the main component 0.1 part of organotin catalyst composed of dilaurate and 0.3 part of tertiary amine catalyst composed of triethylamine as the main component.

[0027] The production process steps of single-component high-iron polyurethane waterproof coating of the present invention are as follows:

[0028] Step 1: Ad...

Embodiment 2

[0035] Compared with Example 1, under the premise that other conditions are completely unchanged, only the ratio of iron red, heavy calcium carbonate, kaolin, and light calcium carbonate in pigments and fillers is changed, and iron red, heavy calcium carbonate, kaolin, and The weight ratio of light calcium carbonate is 5:20:5:5 and added to the polyurethane reactor, a total of 35 parts, and the single-component high-iron polyurethane waterproof coating is prepared according to the preparation method described in the production process steps of the one-component high-iron polyurethane waterproof coating. Polyurethane waterproof coating.

Embodiment 3

[0037] Compared with Example 1, under the premise that other conditions are completely unchanged, only the proportional relationship between the organotin catalyst and the tertiary amine catalyst is changed, and the weight ratio of the organotin catalyst dibutyltin dilaurate to the tertiary amine catalyst triethylamine is 2:2 ratio relationship, a total of 4 parts, and prepare a single-component high-iron polyurethane waterproof coating according to the preparation method described in the production process steps of the single-component high-iron polyurethane waterproof coating.

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Abstract

The invention provides a single-component high-iron polyurethane waterproof coating, which is as follows by weight: 35 parts of polyether polyol, 10 parts of toluene diisocyanate, 15 parts of hydroxyl resin, 0.1 part of dispersant, 35 parts of pigment and filler, curing agent 3.7 parts, 0.8 parts of chain extender and 0.4 parts of catalyst. The invention can effectively solve the technical problems of inconvenient use of the two-component polyurethane waterproof coating for high-speed rail, dark bubbles and pinholes on the surface, and short practical time.

Description

technical field [0001] The invention relates to the technical field of waterproofing, in particular to a waterproof coating, in particular to a single-component high-iron polyurethane waterproof coating and a production process thereof. Background technique [0002] Existing high-iron polyurethane waterproof coatings are generally two-component polyurethane due to the need for tensile strength, which is divided into component A and component B. During use, components A and B need to be mixed in a certain proportion and stirred evenly before use. Generally, group A is the polyurethane prepolymer, and group B is the curing system. Because the two-component high-iron polyurethane waterproof coating has a batching process before construction, measurement errors are prone to occur, resulting in a decrease in the physical properties and waterproof effect of the waterproof coating film; the coating is prone to foaming during the stirring process, making dark bubbles easily appear ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/08C09D7/12C08G18/76C08G18/66C08G18/48C08G18/32C08G18/24C08G18/18
Inventor 李超孟祥雪张冬冬王勇付登升刘兴邦马兴涛张国辉王强陈康
Owner WEIFANG HONGYUAN WATERPROOF MATERIAL