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Heat-curing silicone adhesive and its application for full lamination of super-large LCD screen displays

A super-sized, organic silica gel technology, applied in adhesives, instruments, optics, etc., can solve problems such as air bubbles in the center of the screen, poor display of equipment, etc., and achieve the effect of solving technical obstacles

Active Publication Date: 2021-09-28
上海金力泰化工股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to address the above-mentioned deficiencies in the prior art, to provide a heat-curing organic silicone adhesive for full lamination of super-large-size LCD displays and its application, which solves the problem of poor display effect caused by bubbles in the center of the screen caused by similar materials. The best problem, thus solving the key technical barriers of full lamination technology applied to super-sized products

Method used

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  • Heat-curing silicone adhesive and its application for full lamination of super-large LCD screen displays
  • Heat-curing silicone adhesive and its application for full lamination of super-large LCD screen displays
  • Heat-curing silicone adhesive and its application for full lamination of super-large LCD screen displays

Examples

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Effect test

preparation example Construction

[0063] Its preparation method comprises the following steps:

[0064] (1) Prepare materials according to the proportion of component A, mix the components, and stir for 20-30 minutes to obtain a colorless and transparent liquid of component A;

[0065] (2) Prepare materials according to the proportion of component B, add each component into the reaction device, and continue stirring for 20-30 minutes to obtain a colorless and transparent liquid of component B.

[0066] The specific ratios and dosages of Examples 1-3 and Comparative Examples 1-3 are shown in Table 1, and the specific specifications of each component are shown in Table 2.

[0067] Table 1 embodiment 1-3 and comparative example 1-3 concrete proportioning consumption and preparation condition

[0068]

[0069]Note: In comparative example 3, a high-content terminal hydrogen-containing silicone oil is used, that is, 10 parts of terminal hydrogen-containing silicone oil with a hydrogen content of 0.6-0.8%; 10 par...

Embodiment 1

[0074] Preparation of component A: weighed in parts by weight: 80 parts of 100-300mPa.s terminal vinyl silicone oil; 60 parts of 500-1000mPa.s terminal vinyl silicone oil; 40 parts of 2000-5000mPa.s terminal vinyl silicone oil; platinum catalyst 0.5 parts; 2 parts of vinyl MQ silicone resin to obtain component A.

[0075] Preparation of component B: weigh 80 parts by weight of 2000-5000mPa.s terminal vinyl silicon; 20 parts of terminal hydrogen-containing silicone oil with a hydrogen content of 0.01-0.02%; 20 parts; 30 parts of hydrogen-containing silicone oil with a hydrogen content of 0.3-0.5%, to obtain component B.

[0076] Stir the component A and the component B evenly according to the mass ratio of 100:90 and then pour it on the product to be bonded. After leveling, clean up the air bubbles trapped in the pouring process, and clean up the The air bubbles wrapped in the medium are then cured on a heating platform at 60°C for 40 minutes, that is, the full lamination of t...

Embodiment 2

[0078] Preparation of component A: weighed in parts by weight: 70 parts of 100-300mPa.s terminal vinyl silicone oil; 60 parts of 500-1000mPa.s terminal vinyl silicone oil; 40 parts of 2000-5000mPa.s terminal vinyl silicone oil; platinum catalyst 0.5 parts; 3 parts of vinyl MQ silicone resin to obtain component A.

[0079] Preparation of component B: Weigh 75 parts of 2000-5000mPa.s terminal vinyl silicon in parts by weight; 30 parts of terminal hydrogen-containing silicone oil with a hydrogen content of 0.01-0.02%; 20 parts; 30 parts of hydrogen-containing silicone oil with a hydrogen content of 0.3-0.5%, to obtain component B.

[0080] Stir the component A and the component B evenly according to the mass ratio of 100:92 and pour it on the product to be bonded. After leveling, clean up the air bubbles trapped in the pouring process, and clean up the The air bubbles wrapped in the medium are then cured on a heating platform at 70°C for 30 minutes, that is, the full lamination ...

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Abstract

The invention discloses a heat-curing silicone adhesive for super-large-size liquid crystal display full lamination, which includes component A and component B, wherein: in parts by weight, component A contains the following raw material components: 100-300mPa. 60-100 parts of s-terminal vinyl silicone oil; 50-100 parts of 500-1000mPa.s-terminal vinyl silicone oil; 20-50 parts of 2000-5000mPa.s-terminal vinyl silicone oil; 0.2-0.5 parts of platinum catalyst; vinyl MQ silicone resin 2 to 5 parts; in parts by weight, component B includes the following raw material components: 50 to 100 parts of terminal vinyl silicone oil of 2000‑5000mPa.s; 10 to 30 parts of terminal hydrogen silicone oil with a hydrogen content of 0.01 to 0.02%; 10-30 parts of hydrogen-containing silicone oil with a hydrogen content of 0.1-0.2%; 10-30 parts of hydrogen-containing silicone oil with a hydrogen content of 0.3-0.5%. The present invention solves the problem that bubbles appear in the center of the screen of the same material, resulting in poor display effect of the device, thereby solving the key technical obstacle in the application of full lamination technology to super-large-sized products.

Description

technical field [0001] The invention belongs to the technical field of full bonding materials for displays, and in particular relates to a heat-curing silicone adhesive for full bonding of super-large liquid crystal screen displays and its application. Background technique [0002] So far, the silicone adhesives sold on the market for the full bonding of displays will not appear small bubbles after the bonding is completed for products below 55 inches. For products above 55 inches, several small bubbles will be randomly generated in the center of the screen during the bonding process (such as Figure 1-3 ), while the current education screen, conference system and other display systems have a minimum screen size of 55 inches and a maximum size of 98 inches. The technical difficulty of bubbles in the screen is difficult to effectively solve. Contents of the invention [0003] The purpose of the present invention is to address the above-mentioned deficiencies in the prior ar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J183/07C09J183/05G02F1/1333
CPCC08L2205/025C08L2205/035C09J183/04G02F1/1333C08L83/04
Inventor 丁爱顺郭浩
Owner 上海金力泰化工股份有限公司