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Process for preparing nano-organosilicon composite coating

A nano-organosilicon and composite coating technology, which is applied to coatings, devices for coating liquids on surfaces, special surfaces, etc., can solve problems such as inability to adapt, poor wear resistance and weather resistance of organic compounds, and limited service life. Achieve good corrosion resistance test and high hardness

Inactive Publication Date: 2009-05-13
SHENZHEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Coatings generally have the disadvantages of poor wear resistance and weather resistance of organic compounds, and their service life is quite limited, which is far from meeting the requirements of social development.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] The ratio of raw materials is: 10 grams of ethyl orthosilicate, 1 gram of nano silicon oxide, 2 grams of monomethyltriethoxysilane, 4 grams of dimethyldiethoxysilane, 2 grams of monophenyltriethoxysilane gram, 6 grams of diphenyldiethoxysilane, 12 grams of KH560 (γ (2,3 glycidoxy) propyltrimethoxysilane), 200 grams of ethanol, 10 grams of deionized water, and 0.1 gram of hydrochloric acid. After mixing, use a magnetic stirrer to stir for 60 minutes, seal the mixed solution and let it stand. After 24 hours, heat the solution to 80°C and reflux for 120 minutes, then replace it with a distillation device for vacuum distillation, and continue heating. After the solution is heated to 120°C, keep it warm for 30 minutes That is, the nano-organosilicon solution is used for coating. The coating is prepared by the pulling method, the pulling speed is 10 cm / min, the number of pulling is 10 times, and the pulling gap is 5 minutes. Then the coating was left to dry in the air for 30...

Embodiment 2

[0015] The ratio of raw materials is: 10 grams of ethyl orthosilicate, 2 grams of nano silicon oxide, 2 grams of monomethyltriethoxysilane, 6 grams of dimethyldiethoxysilane, 2 grams of monophenyltriethoxysilane gram, 6 grams of diphenyldiethoxysilane, 16 grams of KH560 (γ (2,3 glycidoxy) propyltrimethoxysilane), 200 grams of ethanol, 10 grams of deionized water, and 0.2 grams of hydrochloric acid. After mixing, use a magnetic stirrer to stir for 60 minutes, seal the mixed solution and let it stand. After 24 hours, heat the solution to 80°C and reflux for 120 minutes, then replace it with a distillation device for vacuum distillation, and continue heating. After the solution is heated to 120°C, keep it warm for 30 minutes That is, the nano-organosilicon solution is used for coating. The coating is prepared by a pulling method, the pulling speed is 5 / min, the number of pulling is 15 times, and the pulling gap is 10 minutes. Then the coating was left to dry in the air for 30 mi...

Embodiment 3

[0017] The ratio of raw materials is: 15 grams of ethyl orthosilicate, 1 gram of nano silicon oxide, 4 grams of monomethyltriethoxysilane, 4 grams of dimethyldiethoxysilane, 4 grams of monophenyltriethoxysilane gram, 4 grams of diphenyldiethoxysilane, 12 grams of KH560 (γ (2,3 glycidoxy) propyltrimethoxysilane), 200 grams of ethanol, 12 grams of deionized water, and 0.1 gram of hydrochloric acid. After mixing, use a magnetic stirrer to stir for 60 minutes, seal the mixed solution and let it stand. After 24 hours, heat the solution to 80°C and reflux for 120 minutes, then replace it with a distillation device for vacuum distillation, and continue heating. After the solution is heated to 120°C, keep it warm for 30 minutes That is, the nano-organosilicon solution is used for coating. The coating is prepared by the pulling method, the pulling speed is 10 cm / min, the number of pulling is 10 times, and the pulling gap is 5 minutes. Then the coating was left to dry in the air for 30...

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Abstract

The invention relates to a method for preparing a nanometer organosilicone composite coating solution. The method comprises the following steps: Tetraethyl orthosilicate, nanometer monox and a plurality of silane coupling agents (such as KH560, KH792) are mixed through certain proportion, are added with certain amount of ethanol, are stirred through a magnetic stirrer and are added with certain amount of water and inorganic acid during the period; the solution is heated and condensed to certain temperature; and the obtained solution is kept stand for certain time to obtain the organosilicone composite coating solution. The solution can be used for coating the surface of metal, plastic and other substrates through spraying, dip coating, brushing, pull spraying or rotary coating so as to obtain a coating layer. The obtained coating layer has high rigidity, wearing resistance and weather resistance, and can be used for protecting the surfaces of various substrates.

Description

technical field [0001] Preparation of nano-organosilicon composite coating Background technique [0002] Traditional material surface coatings are mainly prepared from coatings synthesized by resins such as amino resins, polyurethane resins, alkyd resins, thermosetting acrylic resins, and phenolic resins, and the main components are organic matter. Coatings generally have the disadvantages of poor wear resistance and weather resistance of organic compounds, and their service life is quite limited, which is far from meeting the requirements of social development. [0003] Nanocomposite coatings can be obtained by combining nanomaterials with traditional surface coating techniques. Nanocomposite coating is a film material composed of two or more phases of solid matter, at least one of which is a nanophase, and the other phases can be nanophase or non-nanophase. The nano-organosilicon composite coating concentrates the excellent characteristics of nano-materials and silane co...

Claims

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Application Information

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IPC IPC(8): C09D7/12C09D1/00B05D5/00
Inventor 罗仲宽蔡弘华吕维忠李玉亭李海洋任祥忠
Owner SHENZHEN UNIV
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