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Mono-component high-iron polyurethane waterproof paint and production process thereof

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

Active Publication Date: 2014-02-05
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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  • Mono-component high-iron polyurethane waterproof paint and production process thereof
  • Mono-component high-iron polyurethane waterproof paint and production process thereof
  • Mono-component high-iron polyurethane waterproof paint and production process thereof

Examples

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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 mono-component high-iron polyurethane waterproof paint comprising, by weight: 35 parts of polyether polyol, 10 parts of toluene diisocyanate, 15 parts of hydroxyl resin, 0.1 parts of a dispersing agent, 35 parts of a pigment and filler, 3.7 parts of a curing agent, 0.8 parts of a chain extender, and 0.4 parts of a catalyst. With the paint provided by the invention, technical problems such as inconvenient application, dark bubble and pinhole on surface, short particle time, and the like of high-iron double-component polyurethane waterproof paint can be effectively solved.

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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IPC IPC(8): C09D175/08C09D7/12C08G18/76C08G18/66C08G18/48C08G18/32C08G18/24C08G18/18
Inventor 王威于学彬马英烈郑贤国
Owner WEIFANG HONGYUAN WATERPROOF MATERIAL
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