High-temperature-resistant and yellowing-resistant liquid optical adhesive

A technology of yellowing resistance and high temperature resistance, used in adhesives, liquid degassing, chemical instruments and methods, etc., can solve the problems of poor temperature resistance and yellowing resistance, unable to meet long-term bonding and lamination, etc. Achieve uniform heating, excellent defoaming effect, and improve the effect of yellowing resistance

Inactive Publication Date: 2021-04-30
浙江中特化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, a liquid optical adhesive with high temperature resistance and yellowing resistance prepared based on acryloyloxy-terminated polysiloxane material is proposed to solve the problem of poor temperature resistance and yellowing resistance of traditional optical adhesives, which cannot be used under high temperature conditions. Meet the problem of long-term bonding and bonding

Method used

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  • High-temperature-resistant and yellowing-resistant liquid optical adhesive
  • High-temperature-resistant and yellowing-resistant liquid optical adhesive
  • High-temperature-resistant and yellowing-resistant liquid optical adhesive

Examples

Experimental program
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Effect test

Embodiment 1

[0049] Example 1: Take 40 parts of A component, 20 parts of B component, and 1 part of C component in three batches and add them to the stirring and defoaming device in turn, and stir and mix at a speed of 2800r / min for 25 minutes; then take 0.2 parts of F component Add it into the stirring and defoaming device, continue to stir and mix at a speed of 2800r / min for 20min, finally add 1 part of D and 1 part of E in two batches, stir and mix at a speed of 2800r / min for 15min, and keep the stirring and defoaming device at a speed of 1200r / min Min to stir, control the vacuum in the stirring and defoaming device to -0.1Mpa, defoam the mixed components for 35min, keep the temperature at 20°C, keep the humidity at 40%, and fill the glue until it is black in a dark environment. light hose.

Embodiment 2

[0050] Example 2: Take 45 parts of A component, 22 parts of B component, and 1.5 parts of C component in three batches and add them to the stirring and defoaming device in turn, and stir and mix at a speed of 2800r / min for 25 minutes; then take 0.4 parts of F component Add it into the stirring and defoaming device, continue to stir and mix at a speed of 2800r / min for 20min, finally add 1.3 parts of D and 2 parts of E in two batches, stir and mix at a speed of 2800r / min for 15min, and keep the stirring and defoaming device at a speed of 1200r / min Min to stir, control the vacuum in the stirring and defoaming device to -0.1Mpa, defoam the mixed components for 35min, keep the temperature at 20°C, keep the humidity at 40%, and fill the glue until it is black in a dark environment. light hose.

Embodiment 3

[0051] Example 3: Take 50 parts of A component, 24 parts of B component, and 2 parts of C component in three batches and add them to the stirring and defoaming device in turn, and stir and mix at a speed of 2800r / min for 25 minutes; then take 0.6 parts of F component Add it into the stirring and defoaming device, continue to stir and mix at a speed of 2800r / min for 20min, finally add 1.6 parts of D and 3 parts of E in two batches, stir and mix at a speed of 2800r / min for 15min, and keep the stirring and degassing device at a speed of 1200r / min Min to stir, control the vacuum in the stirring and defoaming device to -0.1Mpa, defoam the mixed components for 35min, keep the temperature at 20°C, keep the humidity at 40%, and fill the glue until it is black in a dark environment. light hose.

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Abstract

The invention discloses a high-temperature-resistant and yellowing-resistant liquid optical adhesive, which is composed of the following components: 40-60 parts of an A component acryloyloxy-terminated polysiloxane; 20-30 parts of a B component reactive diluent; 1-3 parts of a C component tackifier; 1-2 parts of a D component light stabilizer; 1-5 parts of an E component photoinitiator; and 0-1 parts of a F component antioxidant. The preparation method comprises the following steps: proportionally adding the component A, the component B and the component C into a stirring and defoaming device in three batches, stirring and mixing the mixture, adding the component F into the stirring and defoaming device, continuing stirring and mixing the mixture, finally adding the component D and the component E into the stirring and defoaming device in two batches, stirring and mixing the mixture, and keeping the stirring and defoaming device stirring, and defoaming the mixed components under a vacuum condition, and finally filling the glue into a glue tube. According to the invention, the acryloyloxy-terminated polysiloxane is used as a base material, and the light stabilizer is added, so that the optical adhesive has excellent high temperature resistance, flexibility and yellowing resistance.

Description

technical field [0001] The invention relates to the field of photocurable liquid optical adhesives, in particular to a liquid optical adhesive resistant to high temperature and yellowing. Background technique [0002] With the rapid development of electronic information technology, liquid crystal display devices based on the principle of thin film transistors are widely used as display modules for smartphones, vehicle screens, mechanical equipment, medical equipment, and other equipment. In the production process of liquid crystal display screens, various transparent optical materials (such as glass, liquid crystal cells, polarizers, etc.) need to be bonded together. The liquid optical glue with high transmittance can effectively bond liquid crystal display devices or other optical devices, and has a wide range of applications in the fields of liquid crystal display and optical lenses. [0003] Currently, liquid optical adhesives on the market are mainly UV-curable acrylate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J183/06B01D19/00B01F13/10B01F15/00B01F15/06
CPCC09J183/06B01D19/0078B01D19/0052B01F33/833B01F33/83611B01F35/1453B01F35/92B01F2035/99B01F2101/36
Inventor 杨玉龙
Owner 浙江中特化工有限公司
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