Anti-fingerprint glass organic silicon pressure-sensitive adhesive as well as preparation method and application thereof

A silicone pressure-sensitive adhesive and anti-fingerprint technology, applied in pressure-sensitive films/sheets, adhesives, etc., can solve the problems of low surface energy, instability, silicon transfer on the screen surface, etc., to improve temperature resistance and stability performance, to solve the effect of silicon transfer

Pending Publication Date: 2022-08-05
江苏至昕新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, in order to make the screen smooth, scratch-resistant, and stain-resistant, the surface energy of the screen after anti-fingerprint coating treatment is extremely low, and the traditional protective film has a low and unstable peeling force and poor adhesion to the substrate. , there are deficiencies such as silicon transfer on the surface of the screen after peeling off

Method used

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  • Anti-fingerprint glass organic silicon pressure-sensitive adhesive as well as preparation method and application thereof
  • Anti-fingerprint glass organic silicon pressure-sensitive adhesive as well as preparation method and application thereof
  • Anti-fingerprint glass organic silicon pressure-sensitive adhesive as well as preparation method and application thereof

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preparation example Construction

[0047] On the other hand, the preparation method of the organosilicon pressure-sensitive adhesive of the anti-fingerprint glass of the present invention comprises the following steps:

[0048] S1: Add the aforementioned hydroxyl-terminated polydimethylmethyl vinyl raw rubber, hydroxyl MQ silicone resin, vinyl MQ silicone resin and xylene into the reaction kettle, and stir for 4 hours to fully dissolve and disperse the hydroxyl raw rubber in the solvent.

[0049] S2: Add 0.2-1% benzoic acid catalyst of the total amount of silicone resin and raw rubber, heat to 140-150° C. under nitrogen protection, and perform condensation reaction for 5 hours until no water is produced.

[0050] S3: Cool to room temperature. Add inhibitor, anchoring agent, hydrogen-containing silicone oil, platinum catalyst, and stir evenly to obtain an organosilicon pressure-sensitive adhesive for anti-fingerprint glass.

[0051] Preparation of hydroxyl-terminated polydimethylmethylvinyl raw rubber.

[0052...

Embodiment 1

[0062] S1: Add 80g xylene, 10g hydroxyl MQ silicone resin, 62g vinyl MQ silicone resin, 33g raw rubber 1, 10g raw rubber 2, and 5g raw rubber 3 into the reactor, stir well for about 4h to dissolve and disperse the raw rubber in the reactor. in xylene.

[0063] S2: After stirring evenly, 0.4 g of benzoic acid was heated to 140-150° C. under nitrogen protection, and the condensation reaction was performed for 5 hours until no water was produced.

[0064] S3: Cool to 40°C, add 0.4g ethynyl cyclohexanol, 1g anchoring agent, 1.4g hydrogen-containing silicone oil, 2g platinum catalyst, stir for 0.5h, and prepare a silicone pressure-sensitive adhesive that can be used for coating anti-fingerprint glass .

Embodiment 2

[0066] S1: Add 80g xylene, 20g hydroxyl MQ silicone resin, 52g vinyl MQ silicone resin, 37g raw rubber 1, 8g raw rubber 2, and 3g raw rubber 3 into the reactor, stir well for about 4h to dissolve and disperse the raw rubber in the reactor. in xylene.

[0067] S2: After stirring evenly, 0.4 g of benzoic acid was heated to 140-150° C. under nitrogen protection, and the condensation reaction was performed for 5 hours until no water was produced.

[0068] S3: Cool to 40°C, add 0.4g ethynyl cyclohexanol, 1g anchoring agent, 2g hydrogen-containing silicone oil, 2g platinum catalyst, stir for 0.5h, and prepare a silicone pressure-sensitive adhesive for coating anti-fingerprint glass.

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Abstract

The invention is applicable to the technical field of organic silicon pressure-sensitive adhesives, and provides an anti-fingerprint glass organic silicon pressure-sensitive adhesive as well as a preparation method and application thereof, hydroxyl-terminated poly-dimethyl methyl vinyl raw rubber, hydroxyl MQ silicon resin and vinyl MQ silicon resin are subjected to condensation reaction, a byproduct water is removed, the viscosity and stripping force stability of the pressure-sensitive adhesive are improved, and the anti-fingerprint glass organic silicon pressure-sensitive adhesive is prepared. The cohesive strength and the temperature resistance of the product are improved, and the problem of silicon transfer after the pressure-sensitive adhesive is stripped is solved. By adjusting the content of the vinyl MQ silicon resin, the molecular weight of the raw rubber, the vinyl content, the proportion of different vinyl raw rubber, the mass ratio of the hydroxyl MQ resin to the vinyl MQ resin, the weight ratio of the resin to the raw rubber, and the type and the adding amount of the hydrogen-containing silicone oil, the stripping force between the pressure-sensitive adhesive and the fingerprint-resistant glass and the fingerprint-resistant steel plate is adjusted. By adjusting the type and dosage of the anchoring agent, the adhesiveness of the pressure-sensitive adhesive and a base material is improved, and the pressure-sensitive adhesive is resistant to boiling for 2 hours without degumming.

Description

technical field [0001] The invention belongs to the technical field of organic silicon pressure-sensitive adhesives, and in particular relates to an anti-fingerprint glass organic silicon pressure-sensitive adhesive and a preparation method and application thereof. Background technique [0002] Silicone pressure-sensitive adhesive is a pressure-sensitive adhesive with silicone polymer as the main body, because of its high bond length, bond angle and bond energy in its chemical structure, its low surface energy, low surface tension, and low energy required for rotation. , Compared with traditional acrylic and rubber pressure-sensitive adhesives, it has excellent high and low temperature resistance, and can be used for a long time in harsh environments (-50 ~ 150 ° C); for low surface energy materials such as fluorine-containing, silicon-containing surfaces Has good wetting, spreading and adhesion; excellent chemical resistance, insulating and dielectric properties; [0003] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J183/07C09J183/04C09J7/38
CPCC09J183/04C09J7/38C09J2301/302C08L83/04
Inventor 安冬
Owner 江苏至昕新材料有限公司
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