One-component moisture-curing silicone graffiti-resistant smart coating and preparation method thereof

A moisture-curing, silicone technology, applied in coatings and other directions, can solve the problems of unsustainable anti-graffiti coatings and incomplete protection, achieve strong water and oil repellency, solve easy brittle cracking, and good flexibility.

Active Publication Date: 2021-08-24
SHENZHEN GRANDLAND ENVIRONMENTAL COATING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a one-component moisture-cured organic silicon anti-graffiti smart coating and its preparation method to solve the problems of non-permanent anti-graffiti coating effect and incomplete protection. The anti-graffiti product coating has stronger hydrophobicity and oil resistance The marking pen has the characteristics of good prevention and control effect and long-lasting effect

Method used

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  • One-component moisture-curing silicone graffiti-resistant smart coating and preparation method thereof
  • One-component moisture-curing silicone graffiti-resistant smart coating and preparation method thereof
  • One-component moisture-curing silicone graffiti-resistant smart coating and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0024] The preparation method of the one-component moisture-cured silicone graffiti-resistant smart coating of the present invention is as follows:

[0025] step one:

[0026] Add 5.4kg of polyether-modified silane-terminated polymer WR1944 from Hairun Company and 3.0kg of bisaminosilane coupling agent KH-792 from the Chinese Academy of Sciences in a dry and clean paint mixing tank. Stir and mix at 500 rpm for 15 minutes, then seal the package and leave for 2 hours to prepare a premixed liquid of bisaminosilane coupling agent and polyether-modified silane-terminated polymer for use in Step 2.

[0027] Step two:

[0028] Add 78.5kg of pure silicone resin WR1189 from Hairun Company, 12.8kg polydimethylsiloxane resin WR1951 from Hairun Company, and bisaminosilane prepared in step 1 in a dry and clean paint mixing tank. Coupling agent and polyether-modified silane-terminated polymer premix 8.4kg, Silok 8225H silicone defoamer 0.3kg, start stirring after adding, at 500-700 rpm Sti...

Embodiment 2

[0030] The preparation method of the one-component moisture-cured silicone graffiti-resistant smart coating of the present invention is as follows:

[0031] step one:

[0032] Add 6.2kg of polyether-modified silane-terminated polymer WR1944 from Hairun Company and 3.5kg of bisaminosilane coupling agent KH-792 from the Chinese Academy of Sciences into a dry and clean paint mixing tank. Stir and mix at 500 rpm for 15 minutes, then seal the package and leave for 2 hours to prepare a premixed liquid of bisaminosilane coupling agent and polyether-modified silane-terminated polymer for use in Step 2.

[0033] Step two:

[0034] Add 76.4kg of pure silicone resin WR1189 from Hairun Company, 13.5kg polydimethylsiloxane resin WR1951 from Hairun Company, and bisaminosilane prepared in Step 1 into the dry and clean paint mixing tank. Coupling agent and polyether-modified silane-terminated polymer premix 9.7kg, Silok 8225H silicone defoamer 0.4kg, start stirring after adding, at 500 ~ 70...

Embodiment 3

[0036] The preparation method of the one-component moisture-cured silicone graffiti-resistant smart coating of the present invention is as follows:

[0037] step one:

[0038] Add 7.0kg of polyether-modified silane-terminated polymer WR1944 from Hairun Company and 4.0kg of bisaminosilane coupling agent KH-792 from the Chinese Academy of Sciences into a dry and clean paint tank. Stir and mix at 500 rpm for 15 minutes, then seal the package and leave for 2 hours to prepare a premixed liquid of bisaminosilane coupling agent and polyether-modified silane-terminated polymer for use in Step 2.

[0039] Step two:

[0040] Add 74.3kg of pure silicone resin WR1189 from Hairun Company, 14.2kg polydimethylsiloxane resin WR1951 from Hairun Company, and bisaminosilane prepared in step 1 in a dry and clean paint mixing tank. Coupling agent and polyether-modified silane-terminated polymer premix 11.0kg, Silok 8225H silicone defoamer 0.5kg, start stirring after adding, at 500-700 rpm Stir ...

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Abstract

The invention provides a one-component moisture-curing silicone anti-graffiti smart paint and a preparation method thereof, which is prepared by mixing the following components by weight: 74.3-78.5 parts of pure silicone resin, polydimethylsiloxane resin 12.8 to 14.2 parts, 8.4 to 11.0 parts of silane coupling agent and silane-terminated polymer premix, 0.3 to 0.5 parts of silicone defoamer; the silane coupling agent and silane-terminated polymer premix consists of the following The components in parts by weight are mixed and prepared to obtain: 5.4-7.0 parts of polyether-modified silane-terminated polymer, and 3.0-4.0 parts of bisaminosilane coupling agent. The invention solves the problem that the effect of the anti-graffiti coating is not long-lasting and the protection is not comprehensive, and has the characteristics of stronger hydrophobicity of the coating of the anti-graffiti product, good control effect on oily marker pens, and long-lasting effect.

Description

technical field [0001] The invention relates to the technical field of new functional materials for architectural decoration, in particular to a one-component moisture-cured organic silicon graffiti-resistant intelligent paint and a preparation method thereof. Background technique [0002] Anti-graffiti coatings are produced in Europe and America, including sacrificial anti-graffiti coatings, semi-permanent anti-graffiti coatings and permanent anti-graffiti coatings. Graffiti materials are both water-based and oil-based. my country's anti-graffiti coatings started in 2004. In 2007, relevant norms and standards were introduced to carry out anti-graffiti rectification work. Many scientific research institutions and coating manufacturers began to get involved. [0003] The current anti-graffiti coating product system in the market basically uses non-organosilicon materials such as fluorocarbon, polyurethane, and acrylic acid as the main materials, and achieves the anti-graffit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D183/04C09D7/63C09D7/65
CPCC08L2205/025C08L2205/03C09D183/04C09D7/63C09D7/65C08L83/04C08L71/00C08K5/544
Inventor 徐新祥付超王鹏程刘述敏曾燕曼
Owner SHENZHEN GRANDLAND ENVIRONMENTAL COATING CO LTD
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