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Photocuring nano hybrid material, and synthesis method and application thereof

A technology of nano-hybrid materials and light-curing coatings, applied in the directions of polyether coatings, polyester coatings, epoxy resin coatings, etc., can solve the problems of dispersion and agglomeration, affecting process performance, and preparing light-curing nano-hybrid materials, etc. Achieve good solubility and dispersibility, excellent photocurability, and improve curing performance

Active Publication Date: 2013-03-27
BEIJING UNIV OF CHEM TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For organic-inorganic nano-hybridization, the current common practice is to use physical doping, that is, to directly add nano-powders (or surface-treated nano-powders) into the photocuring system, but it is difficult to reach the nano-scale due to the presence of nanoparticles. dispersion, and cause a sharp increase in the viscosity of the photocuring system, which affects the process performance; therefore, people have carried out research on the condensation and grafting of photocurable groups on the surface of modified nanoparticles, but the nanoparticles without grafted organic matter are still Dispersion and Reunion Problems
[0010] At present, there are reports on the graft polymerization of photosensitive groups on silica nanopowders, but there is no report on the preparation of photocurable nano-hybrid materials by siloxane with photosensitive groups.

Method used

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  • Photocuring nano hybrid material, and synthesis method and application thereof
  • Photocuring nano hybrid material, and synthesis method and application thereof
  • Photocuring nano hybrid material, and synthesis method and application thereof

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preparation example Construction

[0045] In another aspect, the present invention provides a method for preparing the above-mentioned photocurable nano-hybrid material with photocurable reactive groups, the method comprising: under nitrogen atmosphere, in the presence of a catalyst, in an organic solvent, at 20-80°C Under the temperature of 100°C, the siloxane with photocurable reactive groups is reacted with deionized water, the resulting hydrolyzate is polycondensed, and the solvent and other small molecules in the reaction system are removed under reduced pressure to obtain a photocurable reactive group. Curing nano-hybrid materials, wherein the siloxanes with photocurable reactive groups are selected from vinylsiloxanes, and (meth)acryloxysilanes, preferably gamma-methacryloxypropyltrimethyl Oxysilane.

[0046] In a preferred embodiment of the method for preparing a photocurable nano-hybrid material with a photocurable reactive group according to the present invention, the siloxane with a photocurable reac...

Embodiment 1

[0062] Example 1 Synthesis of photocurable nano-hybrid materials with photocurable reactive groups

[0063] Add 1.4 moles of ethanol solution, 0.05 moles of deionized water, and 0.01 moles of hydrochloric acid to 0.2 moles of vinylsiloxane, and react at 65°C. After 48 hours of reaction, remove the solvent and other small molecules under reduced pressure to obtain the product .

Embodiment 2

[0064] Example 2 Synthesis of photocurable nano-hybrid materials with photocurable reactive groups

[0065] Add 10 moles of ethanol solution, 0.5 moles of deionized water, and 0.01 moles of sulfuric acid to 1 mole of vinylsiloxane, and react at 40°C. After 10 hours of reaction, remove the solvent and other small molecules under reduced pressure to obtain the product .

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Abstract

The invention relates to a photocuring nano hybrid material with photocuring reactive groups, and preparation and application thereof. Siloxane with photocuring reactive groups (also called photosensitive groups) is subjected to hydrolytic polycondensation under proper conditions to obtain the photocuring nano hybrid material with photocuring reactive groups. The photocuring nano hybrid material contains abundant photocuring reactive groups, has favorable solubility and dispersity, can effectively improve the curability of the photocuring paint, and can also effectively improve the mechanical properties of the photocuring paint.

Description

technical field [0001] The invention relates to an environment-friendly photocurable polymer material, in particular to a photocurable nano-hybrid material with photocurable active groups and its synthesis method and application. Background technique [0002] Light-curing polymer coating is a new type of polymer environmental protection coating that uses ultraviolet light as a curing energy source to trigger chemical reactions between different components of the coating at room temperature, and quickly cross-links to form a film in an instant. Compared with traditional coating curing technology, its radiation curing has the advantages of energy saving, environmental protection, high efficiency, suitable for heat-sensitive substrates, excellent performance, and less equipment investment. With the enhancement of human awareness of environmental protection, radiation curing will replace traditional heat curing will become a trend. [0003] The characteristics of light-curing p...

Claims

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Application Information

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IPC IPC(8): C08G77/20C09D151/08C09D163/10C09D175/14C09D167/06C09D171/00
Inventor 贺建芸夏秉乾余海龙杨爱军李永超
Owner BEIJING UNIV OF CHEM TECH
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