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Polyaspartate polyurea coating and application thereof

A technology of aspartic acid ester and polyurea, applied in polyurea/polyurethane coatings, anti-corrosion coatings, coatings, etc., can solve problems such as inconvenient construction, low adhesion, too fast gelation, etc., to prolong the use time, Improves flexibility and adhesion

Active Publication Date: 2017-06-09
广州嘉睿复合材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the long curing time, poor weather resistance and light resistance of these waterproof coatings, the coatings will be deformed and invalid after a period of use, and will lose their waterproof effect
[0003] Polyurea coating is a new type of waterproof coating developed in the last ten years. Its outstanding advantages are instant mixing, continuous spraying, excellent aging resistance, long service life, non-toxic and pollution-free; It is convenient for technicians to carry out construction; at the same time, it has poor wettability, low adhesion and poor hardness, etc.

Method used

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  • Polyaspartate polyurea coating and application thereof
  • Polyaspartate polyurea coating and application thereof
  • Polyaspartate polyurea coating and application thereof

Examples

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Embodiment 1

[0025] A kind of embodiment of polyaspartic acid ester polyurea coating of the present invention, the raw material and the parts by weight of polyaspartic acid ester polyurea coating described in the present embodiment are respectively: polyaspartic acid ester 46 parts , 2 parts of polyether modified silicon defoamer, 2.6 parts of polyether ammonia wetting and dispersing agent, 0.4 part of fumed silica, 44 parts of talcum powder and 5 parts of water absorbing agent; the B component is polyether modified 50 parts of permanent toluene diisocyanate.

[0026] The polyaspartate described in this example is Bayer NH1420, the polyether modified silicon defoamer is Wancheng BYC-710, the polyetheramine wetting and dispersing agent is Huntsman FM-300, and the water absorbing agent For Dibaa-30X, the modified polyether used in polyether-modified toluene diisocyanate is polycarbonate diol.

Embodiment 2

[0028] A kind of embodiment of polyaspartic acid ester polyurea coating of the present invention, the raw material and the parts by weight of polyaspartic acid ester polyurea coating described in this embodiment are respectively: 40 parts of polyaspartic acid ester , 1 part of vinyl defoamer, 1 part of polyether amine wetting and dispersing agent, 1 part of fumed silica, 55 parts of heavy calcium powder and 2 parts of water-absorbing agent; the B component is polyether modified toluene 300 parts of diisocyanate.

[0029] The polyaspartate described in this example is Bayer NH1420, the vinyl defoamer is ZY-357, the polyetheramine wetting and dispersing agent is Huntsman FM-300, and the water absorbing agent is Dibaa-30X. The modified polyether used in the polyether-modified toluene diisocyanate is polytetramethylene glycol.

Embodiment 3

[0031] A kind of embodiment of polyaspartic acid ester polyurea coating of the present invention, the raw material and the parts by weight of polyaspartic acid ester polyurea coating described in this embodiment are respectively: 50 parts of polyaspartic acid ester , 4 parts of silicone defoamer, 3 parts of polyether amine wetting and dispersing agent, 0.1 part of kaolin, 45 parts of calcium carbonate and 3.9 parts of water absorbing agent; the B component is 200 parts of polyether modified toluene diisocyanate .

[0032] The polyaspartate described in this embodiment is Bayer NH1420 and Bayer NH1520 (the ratio of the two is 4:5), the silicone defoamer is Defeng DF-853, and the polyetheramine wetting and dispersing agent is Huntsman FM-300, the water absorbent is Dibaa-30X, and the modified polyether used in polyether-modified toluene diisocyanate is polypropylene glycol.

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Abstract

The invention discloses polyaspartate polyurea coating and application thereof; the polyaspartate polyurea coating comprises component A and component B, the component A comprises polyaspartate, a defoaming agent, a dispersant, a thixotropic agent, a filler, and a water absorbent, the component B is polyether-modified polyisocyanate; the mass ratio of the components A and B is 1:3 to 2:1. The polyaspartate polyurea coating of the invention has good softness and waterproofing property, as well as high adhesion; these good features allow the coating of the invention to better act as a buffer layer for a coating system, the ability of a waterproof material to resist environmental changes in actual application is improved greatly, the service life is extended, and maintenance cost is lowered.

Description

technical field [0001] The invention belongs to the technical field of chemical paint preparation, and in particular relates to a polyaspartate polyurea paint and an application thereof. Background technique [0002] At present, the waterproof coatings used in the market include asphalt, acrylic coatings, polyurethane coatings and modified coatings. Due to the long curing time, poor weather resistance and light resistance of these waterproof coatings, the coatings will be deformed and invalid after a period of use, and will lose their waterproof effect. [0003] Polyurea coating is a new type of waterproof coating developed in the last ten years. Its outstanding advantages are instant mixing, continuous spraying, excellent aging resistance, long service life, non-toxic and pollution-free; It is convenient for technicians to carry out construction; at the same time, it has poor wettability, low adhesion and poor hardness. For this reason, scientific and technical personnel ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/02C09D7/12C09D5/08
CPCC08L2205/03C08L2205/035C09D5/08C09D7/61C09D7/65C09D175/02C08L71/00C08K3/00C08K3/36C08K3/34C08K2003/265C08K3/346C08K2003/3045
Inventor 潘瑞华张龙谢彪
Owner 广州嘉睿复合材料有限公司
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