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Ultraviolet cured paint, preparation method and application thereof

A technology of curing coatings and ultraviolet light, which is applied in the direction of coating, etc., can solve the problems of many steps, complicated process, long reaction time, etc.

Active Publication Date: 2011-10-12
TAICANG JIA RUI PRECISION MOLD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the preparation method of UV-curable coatings that can be applied to polymer optical fibers and optical devices generally has many steps and long reaction time, so the process is too complicated

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0021] In the preparation method provided by the embodiments of the present invention, the amount of each substance should be such that in the paint, based on the total amount of the paint, the content of the compound with mercapto groups is 20-60wt%, preferably 30-35wt%, monofunctional or multifunctional The content of allyl compound is 30-70wt%, preferably 45-50wt%, the content of aliphatic diisocyanate is 5-20wt%, preferably 10-15wt%, the content of monofunctional or multifunctional acrylate is 0-35wt%, preferably 0 -15wt%, the photoinitiator content is 1-10wt%, preferably 1-5wt%.

[0022] The UV-curable coating provided in the embodiments of the present invention can be applied in various ways, such as scraping, spraying, rolling or brushing. The obtained UV-curable paint coating is cured under the irradiation of ultraviolet light (365nm-400nm), so as to achieve the purpose of using a highly transparent UV-curable paint.

[0023] The UV-curable coating provided in the emb...

Embodiment 1

[0035] Adopt the following components (calculated by weight percentage) to prepare the UV curing coating with a refractive index of 1.480:

[0036] Trimethylolpropane-2-trimercaptoacetate 35%

[0037] Trimethylpropane diallyl ether 50%

[0038] Isophorone Diisocyanate 13%

[0039] Benzophenone 2%

[0040]Add the above-mentioned components into the reaction container according to the proportion, stir for 15-30 minutes at normal temperature or under the condition of heating, and obtain the transparent UV-curable coating after cooling. The obtained UV-curable coating is sealed and stored in a cool and dry place with a brown glass bottle.

[0041] Mixing this paint with liquid crystals yields polymer dispersed liquid crystals. Apply it on the optical device and cure it under ultraviolet light for 5-30 minutes.

Embodiment 2

[0043] Adopt the following components (calculated by weight percentage) to prepare the UV curing coating with a refractive index of 1.456:

[0044] Trimethylolpropane-3-trimercaptopropionate 35%

[0045] Trimethylpropane diallyl ether 50%

[0046] Isophorone Diisocyanate 13%

[0047] Benzophenone 2%

[0048] The preparation method is the same as in Example 1.

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Abstract

The invention provides ultra violet curing coating, and a preparation method and an application thereof; the coating contains light trigger, compound with mercapto, monofunctional extractant or polyfunctional group allyl compound and aliphatic diisocyanate, contains or does not contain monofunctional extractant or polyfunctional group acrylic ester; the preparation method comprises the following steps: the substances are evenly mixed under normal temperature or heating condition, and then placed stationarily, to obtain the required ultra violet curing coating. The coating is simple to be prepared, has high transparency, high gloss and adjustable refraction index, can be applied to polymer optical fiber and optical devices, and can be used as ultra violet curing agent to be applied in polymer dispersion liquid crystal.

Description

technical field [0001] The invention belongs to photocurable coatings in the field of chemical industry, in particular to an ultraviolet photocurable coating and its preparation method and application. Background technique [0002] UV-curable coating is a new type of environmental protection and energy-saving coating developed in the 1960s. It has the advantages of energy saving, ecological environment protection and economy. my country began to get involved in this technology in the 1970s, and it has made great progress since the 1990s. UV-curable coatings use high-energy ultraviolet light as the light-curing energy source. The photoinitiator in the coating absorbs the ultraviolet light energy to form free radicals, triggers the photosensitive resin and reactive diluent molecules, and then undergoes a chain polymerization reaction. Curing, the coating can be 100% cured to form a film, there is no problem of organic solvent volatilization and pollution, and the energy utili...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D4/02
Inventor 索旭菲刘冬江林
Owner TAICANG JIA RUI PRECISION MOLD CO LTD
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