Method for preparing UV (ultraviolet)-curable high-temperature-resistant and corrosion-resistant organic silicon/silica hybrid coating

A technology of silicon dioxide and ultraviolet light, which is applied in coatings, anti-corrosion coatings, etc., to achieve the effect of improving corrosion resistance and comprehensive performance
CN102585700AInactive Publication Date: 2012-07-18NANCHANG HANGKONG UNIVERSITY

Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
NANCHANG HANGKONG UNIVERSITY
Publication Date
2012-07-18
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses a method for preparing an UV (ultraviolet)-curable high-temperature-resistant and corrosion-resistant organic silicon / silica hybrid coating. In the method, tetraethoxysilane is taken as an inorganic phase precursor, methyltriethoxysilane and diphenyldimethoxysilane are taken as organic phase precursors, then the mixed liquor of gamma-methacryloxy silane and a free-radical photo-initiator is added, and an UV-curable organic silicon / silica hybrid sol can be prepared by using a sol-gel method; and after a base material is coated, the base material is cured by ultraviolet light for 30-300s so as to obtain an organic silicon / silica hybrid coating, thereby forming hybrid gel space network structure taking Si-O-Si bonds as a skeleton. The method disclosed by the invention has the following technical effects: the hybrid coating subjected to ultraviolet-light curing forms a denser network structure, thereby facilitating the improvement of comprehensive properties, and especially facilitating the improvement of corrosion resistance; and the denser network structure can form a physical 'barrier' better so as to prevent corrosive substances such as water and chemical reagents and the like from contacting a substrate.
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Description

Technical field

[0001] The present invention involves a preparation method of a silicon / silicon hybridization coating, especially the preparation method of high temperature resistance and corrosion -resistant silicon -resistant coating of ultraviolet light. Background technique

[0002] The rapid development of modern science and technology puts forward higher requirements for the performance of materials. The single -nature of materials can no longer meet the needs of development. Compoundization has become the mainstream trend of modern materials development.

[0003] Organic -inorganic hybrid material is a composite material with excellent performance. It is organically combined with organic or chemical methods to form an organic inorganic network in the inorganic network;Chemical bonds (covalent or fixing keys), hydrogen bonds, or Van Dewali are combined at the nano level, and the separation size is not greater than nano -level.

[0004] The structure and performance of organ...

Claims

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