High-temperature, high-humidity and high-salt mist-resistant polyurethane coating and preparation method thereof

A polyurethane coating and high temperature resistant technology, applied in the chemical field, can solve the problems of poor corrosion resistance of steel structures and so on

Inactive Publication Date: 2015-03-25
BC P INC CHINA NAT PETROLEUM CORP +2
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0003] The invention provides a high temperature, high humidity, high salt spray polyurethane coating and its manufacturing method to solve the technical problem of poor anticorrosion effect of steel structures in the prior art

Method used

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  • High-temperature, high-humidity and high-salt mist-resistant polyurethane coating and preparation method thereof

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Embodiment Construction

[0025] The invention provides a high-temperature, high-humidity, high-salt spray polyurethane coating and a manufacturing method to solve the technical problem of poor anticorrosion effect of steel structures in the prior art.

[0026] The general idea of ​​the embodiment of the present invention is as follows:

[0027] Provide a high temperature resistant, high humidity, high salt spray polyurethane coating, characterized in that the polyurethane coating is composed of 1 part by weight of a main coating and 0.08 to 0.15 parts of a curing agent; It is stabilized by 0.25-0.35 parts of fluorine-modified acrylic resin, 0.25-0.35 parts of hydroxyl acrylic resin, 0.001-0.002 parts of polyurethane curing accelerator, 0.01-0.02 parts of nano-silica, and 0.01-0.02 parts of hindered amines Agent, 0.002~0.008 parts of modified polysilane defoaming agent, 0.2~0.3 parts of titanium dioxide, 0.15~0.20 parts of talcum powder, 0.05~0.10 parts of xylene; the curing agent consists of 0.3~0.3 p...

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Abstract

The invention relates to the chemical technical field and discloses a high-temperature, high-humidity and high-salt mist-resistant polyurethane coating and a preparation method thereof, so as to solve the technical problem that in the prior art, the steel structure is relatively poor in preservative effect. The polyurethane coating is prepared from 1 part by weight of a main coating and 0.08-0.15 part by weight of a curing agent; the main coating is prepared from the following components in parts by weight: 0.25-0.35 part of fluorine-modified acrylic resin, 0.25-0.35 part of hydroxy acrylic resin, 0.001-0.002 part of a polyurethane curing accelerator, 0.01-0.02 part of nanosilicon dioxide, 0.01-0.02 part of a hindered amine stabilizer, 0.002-0.008 part of a modified polysilane defoaming agent, 0.2-0.3 part of titanium dioxide, 0.15-0.20 part of talcum powder and 0.05-0.10 part of dimethylbenzene; the curing agent is prepared from the following components in parts by weight: 0.3-0.4 part of isophorone diisocyanate, 0.4-0.5 part of hexamethylene diisocyanate, 0.05-0.15 part of isobutyl acetate and 0.05-0.15 part of methoxy propyl acetate. Furthermore, the preservative effect of the steel structure is improved.

Description

technical field [0001] The invention relates to the field of chemical technology, in particular to a high-temperature, high-humidity, high-salt fog-resistant polyurethane coating and a manufacturing method. Background technique [0002] At present, there are more and more steel structures serving in the harsh marine atmospheric environment of high temperature, high humidity, high salt spray and strong ultraviolet rays. The steel structures in this harsh marine atmospheric environment often have coating peeling off in a short period of time, causing The phenomenon of steel structure corrosion will affect the safety and life of the steel structure. Therefore, there is a technical problem in the prior art that the anticorrosion effect of the steel structure is relatively poor. Contents of the invention [0003] The invention provides a high-temperature, high-humidity, high-salt spray polyurethane coating and a manufacturing method to solve the technical problem of poor antic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/14C09D5/08C09D7/12
CPCC08K2003/2241C09D175/04C08G18/6216C08G18/722C08G18/73C08G18/755C08K2201/011C09D5/08C09D7/61C08L83/16C08K3/36C08K3/34
Inventor 张贻刚韩文礼张彦军徐忠苹杨耀辉李玲杰
Owner BC P INC CHINA NAT PETROLEUM CORP
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