Epoxy enhanced tough organosilicon coating
A silicone coating, volatile organic technology, applied in the field of coatings, can solve the problems of poor adhesion between inorganic resin paint and substrate, and easy cracking of the coating.
Inactive Publication Date: 2011-06-01
NANJING UNIV
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Problems solved by technology
The present invention mainly aims at problems such as poor adhesion between inorganic resin paint and substrate, easy cracking of coating, etc., by changing the chemical structure and formula of organosilicon, it provides a C-C organic structure and Si-O inorganic structure; silanol Condensation curing-based epoxy modified tough silicone coating with epoxy group chain extension and cross-linking
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The present invention discloses an epoxy-reinforced ductile silicon coating, which is composed of 100 parts of polysiloxane prepolymers by weight, 1-100 parts of epoxy resins by weight , 5-50 parts of amine curing agents by weight and 1-100 parts by weight of one or a plurality of volatile organic liquids, such as ethanol, propanol, butanol, acetone, butanone, methylbenzene or dimethylbenzene. In the formula: n=1-20, m=(1-8)n, x3=(0-1)n, y=(0-2)n, wherein, R is hydroxyl, methoxy or ethoxy. The coating comprises a great amount of silanol or silane oxygen structures, and has the function of inorganic resin paint; in the meantime, the epoxy groups cured by the amine curing agents have the function of the organic resin.
Description
(1) Technical field The invention prepares an epoxy-reinforced tough organic silicon coating, which can be used as a resin matrix of an anti-corrosion coating, and belongs to the technical field of coatings. (2) Background technology At present, anti-corrosion coatings can be mainly divided into two categories according to the resin substrate: one is based on organic adhesives as resin substrates, such as epoxy resins, polyurethanes and other anti-corrosion coatings; the other is based on inorganic resins. materials, including the use of orthosilicate and orthosilicate zinc-rich coatings. Organic anti-corrosion coatings have good compatibility with substrates, various topcoats, and other adhesives and sealants, but organic coatings have poor heat resistance and weather resistance and are easy to powder. Inorganic coatings have outstanding advantages such as excellent corrosion resistance and heat resistance. However, inorganic coatings do not contain organic groups after ...
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IPC IPC(8): C09D183/06C09D163/00C09D5/08
Inventor 全一武张俊生陈庆民刘冠男廖廓
Owner NANJING UNIV