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
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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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