A kind of one-component polyurethane polyurea waterproof coating and preparation method thereof

A polyurethane polyurea and waterproof coating technology, applied in the direction of polyurea/polyurethane coatings, coatings, etc., can solve the problems of difficulty in the development and development of single-component polyurea coatings, and achieve increased solid content, excellent elongation, and reduced effect of smell

Active Publication Date: 2019-02-22
辽宁亿嘉达防水科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the development and manufacture of high-strength one-component polyurea coatings is relatively difficult, and it is still in the research stage in China

Method used

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  • A kind of one-component polyurethane polyurea waterproof coating and preparation method thereof
  • A kind of one-component polyurethane polyurea waterproof coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] A one-component polyurethane polyurea waterproof coating, including components of the following qualities:

[0057] Polyether 3050 10 parts;

[0058] Polyester 210 35 parts;

[0059] 20 copies of IPDI;

[0060] 30 parts of softener;

[0061] 0.1 part of blocked amine curing agent;

[0062] Catalyst 1 part;

[0063] 0.1 part of gas absorbent;

[0064] 10 parts of light calcium carbonate;

[0065] Nano calcium carbonate 0.3 part.

[0066] Wherein, described softening agent is diethyl phthalate, and described blocked amine curing agent is 3-butyl-2-(1-ethylpentyl) oxazolidine, and described catalyst is dilaurel dibutyltin acid, and the gas absorbent is calcium oxide.

[0067] The preparation method of one-component polyurethane polyurea waterproof coating of the present invention comprises the following steps:

[0068] (1) At room temperature, pump IPDI, polyether 3050, and polyester 210 into the reaction kettle in sequence, stir and heat up to 80°C, and react for...

Embodiment 2

[0072] A one-component polyurethane polyurea waterproof coating, including components of the following qualities:

[0073] Polyether 3050 15 parts;

[0074] Polyester 210 20 parts;

[0075] IPDI 25 copies;

[0076] 30 parts of softener;

[0077] 0.3 part of blocked amine curing agent;

[0078] Catalyst 0.7 part;

[0079] 0.2 parts of gas absorbent;

[0080] 7 parts of light calcium carbonate;

[0081] Nano calcium carbonate 0.5 part.

[0082] Wherein, the softening agent is dibutyl phthalate, the blocked amine curing agent 3-hydroxyethyl-1,3-oxazolidine, the catalyst lead isooctanoate, the gas absorption The agent is calcium hydroxide.

[0083] The preparation method of one-component polyurethane polyurea waterproof coating of the present invention comprises the following steps:

[0084] (1) At room temperature, pump IPDI, polyether 3050, and polyester 210 into the reaction kettle in sequence, stir and heat up to 80°C, and react for 3 hours to obtain a uniform solutio...

Embodiment 3

[0088] In a preferred embodiment of the present invention, the one-component polyurethane polyurea waterproof coating includes the following components of quality:

[0089] Polyether 3050 20 parts;

[0090] Polyester 210 25 parts;

[0091] 30 copies of IPDI;

[0092] 10 parts softener;

[0093] 0.5 part of blocked amine curing agent;

[0094] Catalyst 0.5 part;

[0095] 0.3 parts of gas absorbent;

[0096] 6 parts of light calcium carbonate;

[0097] Nano calcium carbonate 0.7 part.

[0098] Wherein, the softening agent is a mixture of diethyl phthalate and dibutyl phthalate in a mass ratio of 1:1, and the blocked amine curing agent is 2-isopropyl-3-hydroxy Ethyl-1,3-oxazolidine, the catalyst is stannous octoate, and the gas absorbent is calcium hydroxide.

[0099] The preparation method of one-component polyurethane polyurea waterproof coating of the present invention comprises the following steps:

[0100] (1) At room temperature, pump IPDI, polyether 3050, and poly...

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Abstract

The invention relates to a single-component polyurethane polyureas waterproof paint and a preparation method thereof. The paint comprises, by mass, 10 to 30 parts of polyether 3050, 15 to 35 parts of polyester 210, 20 to 40 parts of IPDI, 1 to 30 parts of a softener, 0.1 to 1 part of an enclosed amine curing agent, 0.1 to 1 part of a catalyst, 0.1 to 0.9 part of a gas absorbent, 1 to 10 parts of light calcium carbonate and 0.3 to 1.1 parts of nanometer calcium carbonate. The paint prepared in the invention undergoes curing after contact with water vapor in the air so as to form a film, and the flexible firm seamless waterproof film is formed on the surface of a base layer, so the disadvantages that dual-component products of the same kind are prone to generation of pin holes and are not firmly bonded with a cement base layer, and the paint is suitable for promotion.

Description

technical field [0001] The invention relates to a coating and a preparation method thereof, more specifically, to a one-component polyurethane polyurea waterproof coating and a preparation method thereof. Background technique [0002] With the acceleration of urban construction, the utilization rate of underground space has also increased. At the same time, many underground buildings are in the environment of vibration interference, such as large underground shopping malls, parking lots, subways, and tunnels. Therefore, the general waterproof coating is very difficult. It is easy to break and peel off the coating film, thus losing the waterproof effect. Facts have proved that for large-scale underground projects in severe cold areas for a long time due to structural deformation, settlement and other reasons, the waterproof coatings used have strict performance requirements. Because underground engineering is a reinforced concrete structure buried underground, it has to bear...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/06C09D175/08C09D7/61C08G18/75C08G18/48C08G18/42
CPCC08G18/42C08G18/48C08G18/755C08K2201/011C08K2201/014C08L2205/02C09D7/61C09D7/63C09D175/06C09D175/08C08L75/08C08K2003/265C08K5/12C08K2003/2206C08L75/06
Inventor 刘振平
Owner 辽宁亿嘉达防水科技有限公司
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