Shading gasket glue formed in situ based on UV delayed curing and preparation method thereof

An in-situ, gasket technology, applied in the direction of adhesives, non-polymer organic compound adhesives, adhesive types, etc., can solve the problems of small molecular weight of the initiator, reduced curing effect, easy loss, etc. Loss, improve stability, improve the effect of adhesion

Pending Publication Date: 2022-06-07
上谷新材料(苏州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the molecular weight of the initiator on the market is small, and it is prone to loss, deterioration and other problems, resulting in a decrease in the final curing effect obtained.

Method used

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  • Shading gasket glue formed in situ based on UV delayed curing and preparation method thereof

Examples

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Effect test

Embodiment 1

[0028] A light-shielding gasket formed in situ based on UV delayed curing, in parts by weight, mainly comprising: 30 parts of resin, 2 parts of active monomer, 5 parts of discoloration assistant, 1 part of photoinitiator and 1 part of octa-epoxy base octasilsesquioxane.

[0029] A preparation method of a light-shielding gasket glue formed in-situ based on UV delayed curing, the preparation method of the light-shielding gasket glue formed in-situ based on UV delayed curing mainly comprises the following preparation steps:

[0030] (1) Mix p-aminothiophenol, potassium hydroxide, 4-chlorobenzophenone in a mass ratio, toluene and N-methylpyrrolidone in a mass ratio of 5:2:8:60:20 and mix them evenly at 10°C. , stir at 300r / min for 30min, heat up to 120°C and hold for 4h, continue to heat up to 160°C and hold for 4h, cool to room temperature and filter to remove solid impurities to obtain a filtrate. The mass fraction of 38% hydrochloric acid and ice-water mixture is 1: 6. Mix eve...

Embodiment 2

[0035] A light-shielding gasket formed in situ based on UV delayed curing, in parts by weight, mainly comprising: 40 parts of resin, 3 parts of active monomer, 6.5 parts of discoloration assistant, 1.5 parts of photoinitiator and 2 parts of octa-epoxy base octasilsesquioxane.

[0036] A preparation method of a light-shielding gasket glue formed in-situ based on UV delayed curing, the preparation method of the light-shielding gasket glue formed in-situ based on UV delayed curing mainly comprises the following preparation steps:

[0037] (1) Mix p-aminothiophenol, potassium hydroxide, 4-chlorobenzophenone in a mass ratio, toluene and N-methylpyrrolidone in a mass ratio of 5:2.5:8.5:65:25. , stir at 400r / min for 25min, heat up to 125°C and hold for 3.5h, continue to heat up to 165°C and hold for 3.5h, cool to room temperature and filter to remove solid impurities to obtain a filtrate, the mass fraction of 37% hydrochloric acid and ice-water mixture by mass ratio 1:7 mix and conf...

Embodiment 3

[0042] A light-shielding gasket formed in situ based on UV delayed curing, in parts by weight, mainly comprising: 50 parts of resin, 4 parts of active monomer, 8 parts of discoloration assistant, 2 parts of photoinitiator and 3 parts of octa-epoxy base octasilsesquioxane.

[0043] A preparation method of a light-shielding gasket glue formed in-situ based on UV delayed curing, the preparation method of the light-shielding gasket glue formed in-situ based on UV delayed curing mainly comprises the following preparation steps:

[0044] (1) Mix p-aminothiophenol, potassium hydroxide, 4-chlorobenzophenone in a mass ratio, toluene and N-methylpyrrolidone in a mass ratio of 5:3:9:70:30 and mix them evenly at 30°C. , stir at 500r / min for 20min, heat up to 130°C and hold for 3h, continue to heat up to 170°C and hold for 3h, cool to room temperature and filter to remove solid impurities to obtain a filtrate. The mass fraction of 36% hydrochloric acid and ice-water mixture is 1: 8 Mix an...

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Abstract

The invention discloses shading gasket glue formed in situ based on UV delayed curing and a preparation method of the shading gasket glue, and relates to the technical field of adhesives. When the shading gasket rubber formed in situ based on UV delayed curing is prepared, p-aminothiophenol and 4-chlorobenzophenone are reacted to prepare a photo-initiation monomer, the photo-initiation monomer and acylated polyethylene glycol are reacted to prepare a photoinitiator, vinyl trimethoxy silane is polymerized to prepare octavinyl octasilsesquioxane, and the photoinitiator is polymerized to prepare the shading gasket rubber formed in situ based on UV delayed curing. And uniformly mixing the resin, the active monomer, the color-changing auxiliary agent, the photoinitiator and the octa-epoxy group octa-silsesquioxane, so as to prepare the shading gasket adhesive formed in situ based on UV curing. The shading gasket adhesive formed in situ based on UV delayed curing prepared by the invention has excellent adhesion and stability.

Description

technical field [0001] The invention relates to the technical field of adhesives, in particular to a light-shielding gasket formed in situ based on UV delayed curing and a preparation method thereof. Background technique [0002] With the rapid development of the information age, the application of liquid crystal displays (LCD) is becoming more and more extensive, and it is gradually becoming the mainstream display widely used in electronic equipment, including: watches, calculators, computer monitors, TV screens, cameras, automotive electronic instruments , Personal Digital Assistant (PDA) display, etc. As an important material for the production of liquid crystal displays, UV-curable adhesives play a key role in the LCD industry. Many processes in the production of LCDs are completed with UV-curable adhesives, which have a great impact on the final product performance, The production process and cost play an important role. [0003] UV light curing adhesive has the advan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J4/02C09J11/08C09J175/14C08G77/20C08G77/38C08G65/334
CPCC09J4/00C09J11/08C09J175/14C08G77/045C08G77/38C08G65/3348C08L83/06C08L71/02
Inventor 李志明陈玉发
Owner 上谷新材料(苏州)有限公司
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