High-stability antifouling automobile coating and preparation method thereof

A high-stability, anti-fouling technology, applied in anti-fouling/underwater coatings, anti-corrosion coatings, coatings, etc., can solve the problems of not getting rid of, accelerated corrosion, modifier limitations, etc., to achieve excellent bactericidal performance, excellent resistance Corrosive, performance-improving effects

Inactive Publication Date: 2019-01-08
安徽康瑞高科新材料技术工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the modifier is still limited to acrylic acid or its derivatives, and does not get rid of the shackles of traditional thinking
Although the existing acrylic polysiloxane coatings have greatly improved mechanical properties and anti-corrosion properties, they still have defects in anti-fouling properties.
[0005] As a means of transportation, cars are often subject to various environmental changes, which will inevitably bring a lot of stains to the car, and these stains will bring a lot of microorganisms. Obviously, microorganisms will bring some irreversible damage to the car. Destruction, such as accelerated corrosion, etc., so the sterilization performance is also a performance that is urgently needed for automotive coatings, and there is still a lack of automotive coatings with this performance in the prior art

Method used

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  • High-stability antifouling automobile coating and preparation method thereof
  • High-stability antifouling automobile coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A high-stable antifouling automotive coating, prepared from modified organosiloxane, bismuth tungstate and N,N-diethylcyclopentane-1,2-diamine, characterized in that the Modified organosiloxane prepared from dipropylene terephthalate and polymethylhydrogensiloxane;

[0036] The molar mass ratio of the amino group of the N,N-diethylcyclopentane-1,2-diamine to the molar mass ratio of the ester group of the modified organosiloxane is 1:1;

[0037] The mass of the bismuth tungstate is 5% of the mass of the modified organosiloxane.

[0038] The preparation method of modified organosiloxane is as follows:

[0039] Mix dipropylene terephthalate, tert-butanol and 3wt% tert-butanol solution of chloroplatinic acid, heat up to 60°C under nitrogen protection, add polymethylhydrogensiloxane, heat up to 85°C, and react for 10 hours , under the condition of 60°C / 10mmHg, the solvent was distilled off under reduced pressure to obtain;

[0040] The molar weight of the alkenyl of the d...

Embodiment 2

[0046] A high-stability antifouling automotive coating prepared from modified organosiloxane, bismuth tungstate and 1-N-morpholino-2 amino-cyclopentane, characterized in that the modified organic Siloxanes are prepared from dipropylene terephthalate and polymethylhydrogensiloxane;

[0047] The molar mass ratio of the molar mass of the amino group of the 1-N-morpholino-2 amino-cyclopentane to the ester group of the modified organosiloxane is 1:1;

[0048] The mass of the bismuth tungstate is 5% of the mass of the modified organosiloxane.

[0049] The preparation method of modified organosiloxane is as follows:

[0050] Mix dipropylene terephthalate, tert-butanol and 3wt% tert-butanol solution of chloroplatinic acid, heat up to 60°C under nitrogen protection, add polymethylhydrogensiloxane, heat up to 85°C, and react for 10 hours , under the condition of 60°C / 10mmHg, the solvent was distilled off under reduced pressure to obtain;

[0051] The molar weight of the alkenyl of th...

Embodiment 3

[0057] A kind of high-stability antifouling automobile paint, is prepared by modified organosiloxane, bismuth tungstate and 2-(4-methyl-1-piperazine) cyclopentylamine, is characterized in that, described modified Non-toxic organosiloxane prepared from dipropylene terephthalate and polymethylhydrogensiloxane;

[0058] The molar mass ratio of the molar mass of the amino group of the 2-(4-methyl-1-piperazine) cyclopentylamine to the ester group of the modified organosiloxane is 1:1;

[0059] The mass of the bismuth tungstate is 5% of the mass of the modified organosiloxane.

[0060] The preparation method of modified organosiloxane is as follows:

[0061] Mix dipropylene terephthalate, tert-butanol and 3wt% tert-butanol solution of chloroplatinic acid, heat up to 60°C under nitrogen protection, add polymethylhydrogensiloxane, heat up to 85°C, and react for 10 hours , under the condition of 60°C / 10mmHg, the solvent was distilled off under reduced pressure to obtain;

[0062] The ...

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PUM

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Abstract

The invention provides a high-stability antifouling automobile coating and a preparation method thereof, and belongs to the field of coatings. The high-stability antifouling automobile coating provided by the invention is prepared from modified organosiloxane, bismuth metallate salt and an amine curing agent, wherein the organosiloxane is prepared from a modifier and polymethylhydrogensiloxane; the modifier is selected from diallyl phthalate, diallyl-o-phthalate and diallyl terephthalate; the amine curing agent is selected from N, N-diethylcyclopentane-1, 2-diamine, 1-N-morpholino-2-amino-cyclopentane and 2-(4-methyl-1-piperazine) cyclopentylamine. The automobile coating provided by the invention has good corrosion resistance, aging resistance and antibacterial property.

Description

technical field [0001] The invention belongs to the field of coatings, in particular to a high-stability antifouling automotive coating and a preparation method thereof. Background technique [0002] In recent years, acrylic polysiloxane coatings have been widely used as long-term heavy-duty anti-corrosion system topcoats. This type of coating combines the dual characteristics of acrylic and polysiloxane, and has an organic-inorganic hybrid structure. Excellent long-term anti-corrosion and weather resistance, high solid content, low viscosity, easy construction, very low VOC content, in line with the requirements of new environmental protection regulations. [0003] Acrylic polysiloxane resin is used as the base material. According to the curing mechanism, there are two main types: one is the use of acrylic resin or oligomer-modified polysiloxane intermediates containing double bonds, and the double bonds can be combined with curing agents. The amino group in the component ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/06C09D5/08C09D5/16C09D7/63C08G77/38
CPCC08G77/38C09D5/08C09D5/1662C09D5/1687C09D183/06C08K5/17C08K3/24C08K5/357C08K5/3462
Inventor 徐祖猛王浩臻唐品章
Owner 安徽康瑞高科新材料技术工程有限公司
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