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Preparation method of high-temperature-resistant transparent self-adhesion protection film

A technology of self-adhesive protective film and high temperature resistance, which is applied in the direction of adhesives, film/sheet adhesives, etc., which can solve the problem of poor high temperature resistance of self-adhesive protective film, optical transparency that cannot meet the requirements, and affects the surface of the protected object And other problems, to achieve the effect of increased visible light transmittance, not easy to crystallize, and increased internal stress

Pending Publication Date: 2019-09-06
李明霞
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem mainly solved by the present invention is that the high temperature resistance of the current self-adhesive protective film is poor, and its adhesive strength changes with the temperature. When the temperature is high, the paste is firm, but sometimes it is too firm and difficult to tear off when it is serious, which affects the protection. It is applied to the surface of the object, and it is applied to the defect that the optical transparency cannot meet the requirements in the electronic field. It provides a preparation method of a high-temperature-resistant transparent self-adhesive protective film.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0031] Preparation of antireflection and high temperature resistant glue:

[0032]Mix 10mL tetraethyl orthosilicate and 100mL tert-butanol in a beaker, heat the beaker to 50°C, add 3mL dilute hydrochloric acid with a mass fraction of 5% to the beaker to catalyze hydrolysis, and stir for 1 hour to obtain a silica sol. Add 5 mL of ammonia water with a mass fraction of 20% to the silica sol dropwise, stir for 2 min, pour it into a petri dish and seal it, and let it stand at room temperature for 3 h to obtain a gel;

[0033] Wash the above gel 3 times with tert-butanol, age at room temperature for 12 hours, put it into a freeze dryer, and freeze-dry it in vacuum at -40°C for 2 hours to obtain a silica freeze-dried gel, which is then freeze-dried Glue and antimony-doped tin oxide nanopowder are mixed according to the mass ratio of 1:3 to obtain mixed rubber powder;

[0034] In parts by weight, place 10 parts of mixed rubber powder in 40 parts of ethyl acetate to obtain a mixed sus...

example 2

[0042] Preparation of antireflection and high temperature resistant glue:

[0043] Mix 12mL tetraethyl orthosilicate and 105mL tert-butanol in a beaker, heat the beaker to 52°C, add 4mL dilute hydrochloric acid with a mass fraction of 5% to the beaker to catalyze hydrolysis, and stir for 1.5h to obtain a silica sol , add 6 mL of ammonia water with a mass fraction of 20% dropwise into the silica sol, stir for 2 minutes, pour into a petri dish and seal it, and let it stand at room temperature for 3.5 hours to obtain a gel;

[0044] The above gel was washed 4 times with tert-butanol, aged at room temperature for 13 hours, placed in a freeze dryer, and vacuum freeze-dried at -30°C for 2.5 hours to obtain a silica freeze-dried gel. Dry rubber and antimony-doped tin oxide nano powder are mixed in a mass ratio of 1:3 to obtain mixed rubber powder;

[0045] In parts by weight, place 12 parts of mixed rubber powder in 42 parts of ethyl acetate to obtain a mixed suspension, add 4 parts...

example 3

[0053] Preparation of antireflection and high temperature resistant glue:

[0054] Mix 15mL tetraethyl orthosilicate and 110mL tert-butanol in a beaker, heat the beaker to 55°C, add 5mL dilute hydrochloric acid with a mass fraction of 5% to the beaker to catalyze hydrolysis, and stir for 2 hours to obtain a silica sol. Add 7 mL of ammonia water with a mass fraction of 20% to the silica sol dropwise, stir for 3 minutes, pour it into a petri dish and seal it, and let it stand at room temperature for 4 hours to obtain a gel;

[0055] Wash the above gel with tert-butanol for 5 times, age at room temperature for 14 hours, put it into a freeze dryer, and freeze-dry it under vacuum at -20°C for 3 hours to obtain a silica freeze-dried gel, and freeze-dry the silica Glue and antimony-doped tin oxide nanopowder are mixed according to the mass ratio of 1:3 to obtain mixed rubber powder;

[0056] In parts by weight, place 15 parts of mixed rubber powder in 45 parts of ethyl acetate to ob...

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Abstract

The invention discloses a preparation method of a high-temperature-resistant transparent self-adhesion protection film and belongs to the technical field of protection films. According to the self-adhesion protection film, silicon dioxide and antimony-doped tin oxide nano powder are used as back material layer modification components, and the high-temperature-resistant performance and transparentperformance of the protection film are improved. According to the preparation method, under the high-speed shear environment of silicon dioxide freeze-dried glue and the antimony-doped tin oxide nanopowder, silicon dioxide sol is hydrolyzed and condensed into an inorganic net-shaped structure, and through a metal oxide and silicon dioxide, the high-temperature-resistant performance of the self-adhesion protection film is improved. According to the preparation method, a self-adhesion layer is formed by blending silicon-free polypropylene and low-density polyethylene raw materials, the viscoelasticity of low-density polyethylene and silicon-free polypropylene is good, the adopted antimony-doped tin oxide nano powder is nano powder, few agglomeration phenomena are caused, the surfaces of silicon dioxide freeze-dried glue particles contain rich hydroxyl, after the silicon dioxide freeze-dried glue particles are compounded with the antimony-doped tin oxide nano powder, the stability of a high-temperature-resistant glue solution can be improved, the transmittance of sunlight is increased, and the application prospect is wide.

Description

technical field [0001] The invention discloses a preparation method of a high-temperature-resistant transparent self-adhesive protective film, which belongs to the technical field of protective films. Background technique [0002] The protective film can be divided into adhesive film and self-adhesive film according to its nature. Self-adhesive film is the abbreviation of self-adhesive protective film, which is used to protect the fragile plastic film on the surface. Compared with adhesive film, self-adhesive film has more advantages. If there is no residual glue, stable adhesion, low cost and high profit, self-adhesive film has become the mainstream of the market in recent years. [0003] There are many products, from small mobile phone screens to large car exterior decorative paint films, that need to be protected from ultraviolet rays, acid rain in the atmosphere, bird droppings, small insects, microorganisms, and salt spray in sea water during storage and transportation....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/29C09J7/30C09J123/12C09J123/06C08G73/10C08L23/08C08L53/02C08K13/02C08K3/36C08K5/103C08K3/22
CPCC08G73/1071C08K2201/011C08K2201/014C08L23/0853C08L2201/08C08L2201/10C08L2207/066C09J123/12C09J2423/046C09J2479/086C09J7/29C09J7/30C09J2301/122C08L23/06C08L53/025C08K13/02C08K3/36C08K5/103C08K3/22
Inventor 李明霞
Owner 李明霞