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A kind of polyurea type polyaspartate waterproof coating

A technology of aspartic acid ester and waterproof coating, applied in the field of coatings, can solve the problems of low tensile strength, low elongation at break of polyurea resin, poor transparency, etc., and achieve high transparency, superior waterproof performance, and high wear resistance sexual effect

Active Publication Date: 2021-06-15
盛隆建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, polyurea-type polyaspartate coatings have the above advantages, but there are also some defects that hinder its application and development: such as the wear resistance, water resistance, strength, and adhesion of the coating need to be improved; the transparency is poor, and it cannot Meet the requirements of bridges, outdoor buildings, concrete and furniture decoration; currently, the gel time of polyaspartate and polyisocyanate is generally between 15 seconds and 10 minutes, although it is slower than the curing time of traditional polyurea, However, there is still a big gap compared with the requirements of manual construction, and the polyurea resin prepared by polyaspartic acid ester has low elongation at break and low tensile strength, which limits the use of polyaspartic acid to a certain extent. The application of ester; in addition, the spraying of polyurea polyaspartate coating has high technical content and equipment requirements, which will also affect the performance

Method used

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  • A kind of polyurea type polyaspartate waterproof coating
  • A kind of polyurea type polyaspartate waterproof coating
  • A kind of polyurea type polyaspartate waterproof coating

Examples

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preparation example Construction

[0029] The raw materials for the preparation of component A include 90-110 parts of polyaspartic acid ester and 0-1 part of auxiliary agent in parts by weight;

[0030] The raw materials for the preparation of the B component include 70-90 parts of polyisocyanate and 15-25 parts of solvent in parts by weight.

[0031] In a preferred embodiment, the raw materials for the preparation of the polyurea polyaspartate of the present invention include A component and B component;

[0032] The raw materials for the preparation of the A component include 100 parts of polyaspartic acid ester and 0.3 parts of auxiliary agent in parts by weight;

[0033] The raw materials for the preparation of the B component include 80 parts of polyisocyanate and 20 parts of solvent in parts by weight.

[0034] In a preferred embodiment, the weight ratio of component A and component B in the present invention is (0.9-1.1):1.

[0035] In a preferred embodiment, the weight ratio of component A and compon...

Embodiment

[0107] The present invention is specifically described below by way of examples. It is necessary to point out that the following examples are only used to further illustrate the present invention, and can not be interpreted as limiting the protection scope of the present invention, some non-essential improvements made by those skilled in the art according to the content of the present invention above And adjustments still belong to the protection scope of the present invention.

[0108] In addition, unless otherwise stated, all raw materials used were commercially available from Sinopharm Chemical Reagents.

[0109] A1: polyaspartic acid ester

[0110] The polyaspartic acid ester is purchased from Shenzhen Feiyang Industrial Co., Ltd., the brand is F420, the viscosity (25° C.) is 1200-1500 mPa·s, and the amine equivalent is 277 g / mol.

[0111]A2: Polyaspartate

[0112] The polyaspartic acid ester is purchased from Shenzhen Feiyang Industrial Co., Ltd., the brand is F520, th...

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Abstract

The invention relates to a coating, more specifically to a polyurea type polyaspartic acid ester waterproof coating. The raw materials for the preparation of the polyurea-type polyaspartic acid ester waterproof coating are composed of component A and component B; the raw materials for the preparation of the component A include 90-110 parts of polyaspartic acid ester and 0-1 part of auxiliary agent; the raw materials for the preparation of the B component include 70-90 parts of polyisocyanate and 15-25 parts of solvent in parts by weight. The invention provides a polyurea-type polyaspartic acid ester waterproof coating, which can be applied to many fields such as bridges, outdoor buildings, concrete and home decoration, and has high wear resistance, strength and cohesiveness, and waterproof performance Superiority, the prepared coating has high transparency; in addition, the coating provided by the invention is easy to mix and operate, and can be applied in various ways such as brush, roller or airless spraying, and can form a smooth coating on the surface of buildings and the like.

Description

technical field [0001] The invention relates to a paint, more specifically, the invention relates to a polyurea type polyaspartate waterproof paint. Background technique [0002] Due to the long-term physical, chemical and biological effects of the surrounding environment, buildings are prone to damage, so they usually need to be sprayed with waterproof, sunscreen, anti-corrosion and wear-resistant coatings. Currently commonly used waterproof and anti-corrosion coatings mainly include modified epoxy coatings, polyurethane coatings, vinyl resin coatings, organosilanes, acrylate coatings and polyurea coatings. The performance of the coating determines the protective effect of the coating. The protective coating used in the field of waterproof, anti-corrosion and wear resistance should have the following advantages: good mechanical properties, resistance to rain erosion, collision and even friction; good stability, acid and alkali salt resistance, chemical resistance, Oil resi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/02C09D179/02
CPCC09D175/02C08L79/02
Inventor 李昂汪晓雨赵森光
Owner 盛隆建材有限公司