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Low-temperature-resistant liquid crystal display organic silica gel adhesive and preparation method and application thereof

An organic silica gel, liquid crystal screen technology, used in adhesives, instruments, optics, etc., can solve the problems of adhesive cracking, equipment not working properly, and difficult to meet the requirements of extreme low temperature use, and achieve good adhesion performance and good bonding. the effect of strength

Inactive Publication Date: 2021-02-09
FUDAN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing similar silicone adhesive materials will cause the adhesive to crack under extreme low temperature conditions, which will cause the equipment to fail to work normally, and it is difficult to meet the requirements of extreme low temperature use

Method used

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  • Low-temperature-resistant liquid crystal display organic silica gel adhesive and preparation method and application thereof
  • Low-temperature-resistant liquid crystal display organic silica gel adhesive and preparation method and application thereof
  • Low-temperature-resistant liquid crystal display organic silica gel adhesive and preparation method and application thereof

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Embodiment Construction

[0031] The present invention will be described in detail below in conjunction with specific examples, but it is by no means a limitation of the present invention.

[0032] The preparation method of the silicone adhesive of the present invention is described below through preparation examples (in each of the following examples, each raw material is 1 gram per mass).

[0033] The preparation method of the low-temperature-resistant liquid crystal display organic silicone adhesive is as follows:

[0034] (1) In terms of parts by weight, weigh 6-14 parts of vinyl-terminated silicone oil of 800-1000mPa.s, 6-14 parts of vinyl-terminated silicone oil of 1200-2500mPa.s, and 6-14 parts of vinyl-terminated silicone oil of 4000-5000mPa.s 3-15 parts, 20-25 parts of vinyl MQ silicone resin, 0.02-0.08 parts of platinum catalyst, mix all components and heat to 60-80°C, continue to stir for 20-30 minutes, cool to room temperature, and obtain A component Colorless transparent liquid, sealed un...

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Abstract

The invention belongs to the technical field of special materials for full lamination of displays, and discloses a low-temperature-resistant liquid crystal display organic silica gel adhesive. The adhesive comprises a component A and a component B. The component A comprises the following raw material components in parts by weight: 6-14 parts of 800-1000mPa.s vinyl-terminated silicone oil; 6 to 14parts of 1200-2500 mPa.s vinyl-terminated silicone oil; 3 to 15 parts of 4000-5000 mPa.s vinyl-terminated silicone oil; 20 to 25 parts of vinyl MQ silicon resin; and 0.02 to 0.08 part of a platinum catalyst. The component B is prepared from the following raw material components in parts by weight: 15 to 35 parts of 4000-5000mPa.s vinyl-terminated silicone oil; 20 to 25 parts of vinyl MQ silicon resin; and 15-35 parts of terminal hydrogen-containing silicone oil. The organic silica gel adhesive provided by the invention can be cured under a heating condition and has excellent low-temperature resistance.

Description

technical field [0001] The invention belongs to the technical field of full bonding materials for displays, and in particular relates to a low-temperature-resistant liquid crystal screen display organic silicone adhesive and its preparation method and application. Background technique [0002] As liquid crystal displays are widely used in aerospace and other fields, the reliability of filling materials used in liquid crystal displays plays a key role in the performance of the displays. At present, most of the materials that can be used for LCD screen displays on the market can only reach -50°C under extreme low temperature conditions. Since the general flight altitude of civil aviation aircraft is above 8,000 meters and located at the bottom of the stratosphere, the perennial temperature is -56.5°C, so there is an urgent need Developed an adhesive with excellent low temperature resistance and strong bonding performance in harsh environments. Existing similar silicone adhesi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J183/07C09J183/05G02F1/1333
CPCC08L2203/206C08L2205/025C08L2205/035C09J183/04G02F1/133308C08L83/04
Inventor 丁爱顺郭浩
Owner FUDAN UNIV