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Ultraviolet-curable organic/inorganic nano-composited abrasion-resistant transparent coating material and preparation method thereof

A transparent coating, inorganic nanotechnology, applied in the direction of coating, etc., can solve the problems of incomplete curing of the coating, unfavorable production and coating, health hazards, etc., achieve good thermal stability and chemical stability, and low toxicity , non-volatile effect

Active Publication Date: 2012-06-20
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, acrylic monomers are volatile and have potential health hazards; acrylic oligomers are not volatile, but have high viscosity, which is not conducive to production and coating; moreover, due to th

Method used

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  • Ultraviolet-curable organic/inorganic nano-composited abrasion-resistant transparent coating material and preparation method thereof
  • Ultraviolet-curable organic/inorganic nano-composited abrasion-resistant transparent coating material and preparation method thereof
  • Ultraviolet-curable organic/inorganic nano-composited abrasion-resistant transparent coating material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0041] Example 1:

[0042] Dissolve 35.06g of ethyl orthosilicate and 0.025g of hydrochloric acid (0.12mol / L) in 58.88g of isopropanol, stir evenly; add 14.80g of water to the above solution, and stir for 4 hours; under the condition of continuous stirring Next, add 26.63g Y-glycidyl ether oxypropyl trimethoxysilane (KH560), stir and react for 4 hours; add 53.26g Y-glycidyl ether oxypropyl trimethoxysilane (KH560), stir and react for 4 hours; Heating to 50° C. and stirring for 0.5 hours to obtain a uniform and stable transparent sol. Add 0.80 g of 3-nitrophenyl diphenyl sulfur hexafluorophosphate and 0.38 g of polydimethylsiloxane, stir to make the mixture uniform, and then the coating material of the present invention is obtained. The mass percentage of each component is: ethyl orthosilicate 18.46%; Y-glycidyl ether oxypropyltrimethoxysilane (KH560) 42.08%; isopropanol 31.02%; water 7.80%; phenyldiphenylthio hexafluorophosphate 0.42%; hydrochloric acid 0.013%; polydimethyls...

Example Embodiment

[0044] Example 2:

[0045] The experimental method is the same as that in Example 1, except that 25.62 g of methyl orthosilicate is used instead of 35.06 g of ethyl orthosilicate, and the amount of polydimethylsiloxane added is 0.36 g to obtain a uniform and stable transparent sol. The photoinitiator and the leveling agent are then added, and the mixture is stirred to obtain the coating material of the present invention. The mass percentage of each component is: methyl orthosilicate 14.20%; Y-glycidyl ether oxypropyltrimethoxysilane (KH560) 44.29%; isopropanol 32.64%; water 8.21%; Phenyl diphenyl sulfur hexafluorophosphate 0.44%; hydrochloric acid 0.014%; polydimethylsiloxane 0.20%.

Example Embodiment

[0046] Example 3:

[0047] The experimental method is the same as in Example 1, except that 44.50 g of n-propyl silicate is used instead of 35.06 g of ethyl orthosilicate, and the amount of polydimethylsiloxane added is 0.40 g to obtain a uniform and stable transparent sol. Then add the photoinitiator and the coating auxiliary agent, stir to make the mixture uniform, and then the coating material of the present invention is obtained. The mass percentage of each component is: n-propyl orthosilicate 22.32%; Y-glycidyl ether oxypropyltrimethoxysilane (KH560) 40.08%; isopropanol 29.54%; water 7.42%; 3- Nitrophenyl diphenyl sulfur hexafluorophosphate 0.40%; hydrochloric acid 0.013%; polydimethylsiloxane 0.20%.

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Abstract

The invention relates to an ultraviolet-curable high-transparency high abrasion-resistant and high scratch-resistant coating material and a preparation method thereof, in particular to an organic/inorganic hybrid coating material composited in nano scale by using a sol-gel method, and a preparation method of the organic/inorganic hybrid coating material. The coating material contains silicic ester, hydrolysable silane containing epoxide groups, and photo-initiator; taking mineral acid as catalyst, the silicic ester is hydrolyzed in alcoholic solvent, so as to obtain silica sol; the hydrolysable silane containing the epoxide groups and the silica sol are hydrolyzed and condensed, so as to obtain a stable, transparent and homogeneous coating composition; and the coating composition is dip-coated, spray-coated or spin-coated on the surface of an apparatus, and is ultraviolet-cured, so as to obtain a high abrasion-resistant and high-transparency coating. The coating material can be used as a protective layer for an automobile lamp shade, an instrument panel, an optical disk, a resin lens or the like.

Description

technical field [0001] The invention belongs to the technical field of coating materials, and in particular relates to an ultraviolet-curable, wear-resistant and transparent nanoscale composite organic / inorganic hybrid coating material prepared by a sol-gel method and a preparation method thereof. The coating material can be used as a wear-resistant coating for automobile lampshades, instrument panels, optical discs and resin lenses. technical background [0002] With the development of polymer materials and processing technology, polymer optically transparent materials have gradually replaced inorganic materials in optical lenses, automotive lamps, instruments and optoelectronic devices, and have been widely used. However, due to the poor wear resistance and scratch resistance of the surface of polymer materials, their application effect and service life are limited. In order to solve this problem, hard coatings have been developed to coat the surface of polymer materials....

Claims

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Application Information

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IPC IPC(8): C09D183/06C09D1/00C03C17/30C08J7/04
Inventor 杨柏王明阳张恺
Owner JILIN UNIV
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