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Silica gel, preparation method and protective film using silica gel

A technology of silicone gel and silicone oil, applied in the direction of adhesives, film/sheet adhesives, adhesive additives, etc., can solve the problems of no experimental data support, complex structure, unsatisfactory optical properties, etc., to achieve convenient production and use , The effect of the synthesis operation process is simple and the cost is low

Active Publication Date: 2022-04-12
JIANGSU SIDIKE NEW MATERIALS SCI & TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The patent claims that the protective film provided has high impact resistance and cushioning performance, which can effectively buffer the impact on the device screen and reduce screen damage when the electronic device falls, but there is no experimental data to support it, and the structure is too complicated. For scenes with high optical requirements, the optical performance cannot meet the requirements

Method used

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  • Silica gel, preparation method and protective film using silica gel
  • Silica gel, preparation method and protective film using silica gel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The silicone gel provided in this example, its raw materials include 100 parts by weight of vinyl polysiloxane, 20 parts of methyl MQ silicone resin, 0.8 parts of crosslinking agent, 0.6 parts of catalyst, 0.1 part of inhibitor, coupling 0.6 parts of agent and 150 parts of diluting solvent.

[0032] The vinyl polysiloxane used is terminal vinyl polysiloxane, and the specific chemical structure formula is ViMe 2 SiO(SiMe 2 O) n (SiMeViO) m SiMe 2 Vi, the vinyl content is 0.05wt%; Cross-linking agent adopts terminal hydrogen-containing silicone oil: hydrogen-terminated polydimethylmethylhydrogensiloxane, chemical structural formula is (CH 3 ) 2 (H)SiO[(CH 3 )(H)SiO] y Si(H)(CH 3 ) 2 , the hydrogen content is 0.17wt%, and the molar ratio of H in the silicon hydrogen group-containing silicone oil to the vinyl group is 0.8.

Embodiment 2

[0034] The silicone gel provided in this example, its raw materials include 100 parts by weight of vinyl polysiloxane, 20 parts of methyl MQ silicone resin, 1.1 parts of crosslinking agent, 0.6 parts of catalyst, 0.1 part of inhibitor, coupling 0.6 parts of agent and 150 parts of diluting solvent.

[0035] The vinyl polysiloxane used is terminal vinyl polysiloxane, and the specific chemical structure formula is ViMe 2 SiO(SiMe 2 O) n (SiMeViO) m SiMe 2 Vi, the vinyl content is 0.05wt%; Cross-linking agent adopts terminal hydrogen-containing silicone oil: hydrogen-terminated polydimethylmethylhydrogensiloxane, chemical structural formula is (CH 3 ) 2 (H)SiO[(CH 3 )(H)SiO] ySi(H)(CH 3 ) 2 , the hydrogen content is 0.17wt%, and the molar ratio of H in the silicone oil containing silicon hydrogen group to the vinyl group is 1.0.

Embodiment 3

[0037] The silica gel provided in this embodiment, its raw materials include 100 parts by weight of vinyl polysiloxane, 20 parts of methyl MQ silicone resin, 1.4 parts of crosslinking agent, 0.6 parts of catalyst, 0.1 part of inhibitor, coupling 0.6 parts of agent and 40 parts of diluting solvent.

[0038] The vinyl polysiloxane used is terminal vinyl polysiloxane, and the specific chemical structure formula is ViMe 2 SiO(SiMe 2 O) n (SiMeViO) m SiMe 2 Vi, the vinyl content is 0.05wt%; Cross-linking agent adopts terminal hydrogen-containing silicone oil: hydrogen-terminated polydimethylmethylhydrogensiloxane, chemical structural formula is (CH 3 ) 2 (H)SiO[(CH 3 )(H)SiO] y Si(H)(CH 3 ) 2 , the hydrogen content is 0.17wt%, and the molar ratio of H in the silicone oil containing silicon hydrogen group to the vinyl group is 1.3.

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Abstract

The invention belongs to the technical field of optical protective films, and relates to silica gel, a preparation method and a protective film applying the silica gel, and the silica gel comprises the following components in parts by weight: 100 parts of vinyl polysiloxane, 0-100 parts of methyl MQ resin, 0.5-1.5 parts of a cross-linking agent, 0.5-1 part of a platinum catalyst, 0.05-0.1 part of an inhibitor, 0.1-1 part of a coupling agent and 100-200 parts of a diluting solvent. The silica gel disclosed by the invention is simple in synthesis operation process, low in cost and convenient to produce and use, the protective film applying the silica gel can play a role in efficiently preventing shock and resisting impact on an electronic product screen under the severe condition that no cover plate glass exists, and the probability that a display screen assembly is damaged is effectively reduced.

Description

technical field [0001] The invention belongs to the field of silica gel, in particular to silica gel, a preparation method and a protective film using the silica gel. Background technique [0002] Now touch screen smartphones, tablet computers, etc. have become one of the necessities of life for most people. Now the screen is getting bigger and bigger, and the thickness is getting thinner and thinner. Large screens are gradually becoming the mainstream, and the protection of the screen is becoming more and more difficult. Glass breaks and is crushed from time to time. The screen protective film products currently sold in the market can only protect the screen products with cover glass, and the screen products without cover glass do not have a suitable protective film. Because of the existence of cover glass, ordinary impact buffer protective films are relatively simple. , there are deficiencies such as poor impact resistance and too thick size, which cannot protect against ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J183/07C09J183/04C09J11/08C09J11/06C09J7/30
CPCY02E60/10
Inventor 金闯包静炎李斌施广用
Owner JIANGSU SIDIKE NEW MATERIALS SCI & TECH CO LTD
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