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Antistatic organosilicon pressure-sensitive adhesive containing electron transport material and preparation of adhesive

A technology of silicone pressure-sensitive adhesives and electron transport materials, applied in the direction of non-polymer organic compound adhesives, pressure-sensitive films/sheets, adhesives, etc., can solve the problems of easy precipitation of particles, sacrifice of light transmittance of tape, and dispersion of metal particles To avoid problems such as poor performance, to achieve good dispersion effect and simplify the processing technology

Active Publication Date: 2021-04-06
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the dispersion of metal particles in silicone pressure-sensitive adhesive is not good. After contact loss, the film surface is easy to precipitate particles, sacrificing the light transmittance of the tape.

Method used

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  • Antistatic organosilicon pressure-sensitive adhesive containing electron transport material and preparation of adhesive
  • Antistatic organosilicon pressure-sensitive adhesive containing electron transport material and preparation of adhesive
  • Antistatic organosilicon pressure-sensitive adhesive containing electron transport material and preparation of adhesive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Stir and mix the following components at room temperature: 20 parts by mass of polydiorganosiloxane (Shin-Etsu KF-96, viscosity 100cP), 20 parts by mass of organopolysiloxane (SH- MQ silicone resin, MQ ratio 0.7), 10 parts by mass of polyorganosiloxane containing Si-H bonds (hydrogen content 1.58% (m / m) Shengchi SS-8-10), 50 parts by mass of ethyl acetate ester to obtain the diluted addition silicone resin G1.

[0052] 10 parts by mass of 1-benzyl-3-methylimidazolium trifluoromethanesulfonate, 0.5 parts by mass of carbon nanotubes with a length of 3 μm and a diameter of 2 nm were heated and stirred at 60 ° C for 12 h, and then 1 part by mass of toluene was added at room temperature Stir for 12 hours to obtain ionic liquid-carbon nanotube conductive gel J1 with a viscosity of 2000mpa·s. Add 11.5 parts of the above-prepared gel to 5 parts by mass of polyethylene glycol diacrylate (compound A5), and 5 parts by mass of dipentaerythritol monohydroxypentaacrylate, and stir a...

Embodiment 2

[0055] Stir and mix the following components at room temperature: 25 parts by mass of polydiorganosiloxane (Dow Corning PMX200 viscosity 100cP), 16 parts by mass of organopolysiloxane containing M units and Q units (Sihai SH-MQ silicone resin , MQ ratio 0.7), 12 parts by mass of polyorganosiloxane containing Si-H bonds (Xinglongda 202, (containing H>1.55%, m / m)), 30 parts by mass of ethyl acetate, 17 parts by mass Parts of toluene to obtain the diluted addition silicone resin G2.

[0056] Stir 12 parts by mass of 1-allyl-3-methylimidazolium tetrafluoroborate and 0.003 parts by mass of multi-walled carbon nanotubes with a length of 20 μm and a diameter of 6 nm at 55° C. for 16 h, and then add 1.5 parts by mass of di The methyl chloride was stirred at room temperature for 10 h to obtain the ionic liquid-carbon nanotube conductive gel J2 with a viscosity of 1500 mpa·s. Add 6 parts by mass of polypropylene glycol dibenzyl acrylate (compound A6) and 4 parts by mass of trimethylolp...

Embodiment 3

[0059] The manufacture method of silicone resin G is the same as that in Example 1.

[0060] Stir 12 parts by mass of 1-allyl-3-methylimidazolium tetrafluoroborate and 0.01 parts by mass of multi-walled carbon nanotubes with a length of 10 μm and a diameter of 4 nm at 55° C. for 14 h, and then add 0.9 parts by mass of tetrahydrofuran Stir at room temperature for 10 h to obtain ionic liquid-carbon nanotube conductive gel J3 with a viscosity of 2500 mpa·s. Add 4 parts by mass of polypropylene glycol dibenzyl acrylate (compound A6) to 12.9 parts of gel, 6 parts by mass of glycerin propoxyacid (1PO / OH) triacrylic acid, and stir at 40°C for 12h to obtain an antistatic composition Dilution H3.

[0061] Add 20 parts by mass of antistatic composition dilution H3 and 1.2 parts by mass of Shin-Etsu platinum catalyst CAT-PL-56 to 100 parts by mass of the diluted addition silicone resin B3, and stir to obtain an antistatic composition containing an electron transport material. Voltage s...

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Abstract

The invention provides an antistatic organic silicon pressure-sensitive adhesive containing an electron transport material and a preparation method of the antistatic organic silicon pressure-sensitive adhesive. The antistatic organosilicone pressure-sensitive adhesive is prepared from the following raw materials in parts by mass: 80-100 parts of diluted addition organosilicone resin, 10-20 parts of ionic liquid-carbon nanotube conductive gel, 4-10 parts of a compound containing alkylene oxide, 4-10 parts of an acrylate compound and 1-5 parts of a platinum catalyst. The carbon nano tube and ionic liquid mixed gel is used as an antistatic agent, the problem of incompatibility between the carbon nano tube and the pressure-sensitive adhesive is solved, the gel premixing method is applied, the dispersion effect is good, the gel can be stored for a long time, and the agglomeration phenomenon is avoided; and the antistatic effect can be achieved only by adding a small amount of the antistatic agent, and the curing property, the mechanical property and the optical property of a formed film are not influenced.

Description

[0001] (1) Technical field [0002] The invention relates to an antistatic silicone pressure-sensitive adhesive containing an electron transport material and a preparation method thereof. [0003] (2) Background technology [0004] With the update and iteration of the mobile phone industry, higher requirements are put forward for the display screen. During the manufacturing process, a protective sheet with a pressure-sensitive adhesive layer will be pasted on the surface of the screen. The adhesive-covered protective sheet without antistatic effect has a high peeling voltage, which will absorb small particles of pollutants in the air to cause pollution on the membrane surface, and the yield rate cannot be guaranteed. Therefore, the pressure-sensitive adhesive should be endowed with certain antistatic properties. [0005] The microscopic structure of the substance affects the macroscopic properties, and dispersing carbon nanotubes in the medium can increase the conductivity of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J4/02C09J4/06C09J11/04C09J11/06C09J7/38
CPCC09J4/06C09J11/04C09J11/06C09J7/38Y02P20/54
Inventor 李国华方文韬胡海峰周翔
Owner ZHEJIANG UNIV OF TECH
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