Protective film and preparation method and application thereof
A technology of protective film and mass fraction, which is applied in the direction of film/sheet adhesive, film/sheet without carrier, wax adhesive, etc. Knot tearing, etc.
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[0040] The preparation method of the protective film of an embodiment is one of the preparation methods of the above-mentioned protective film, and the preparation method of the protective film includes the following steps:
[0041] Step S110: In terms of parts by mass, mix 10-12 parts of styrene-butadiene-styrene block copolymer, 90-120 parts of white oil, and 10-12 parts of metal-organic framework materials , to obtain a thermoplastic elastomer.
[0042] Wherein, step S110 is specifically:
[0043] Step S111: In terms of parts by mass, heat 90 to 120 parts of white oil to 110°C to 120°C, stir for 30 to 40 minutes at a constant temperature, and add 10 to 12 parts of styrene-butadiene-benzene Ethylene block copolymer powder, raise the temperature to 130°C-140°C, stir at constant temperature for 50min-60min to obtain a melt;
[0044] Step S112: adding 10 to 12 parts of the metal-organic framework material to the melt, and stirring evenly to obtain a thermoplastic elastomer. ...
Embodiment 1
[0057] The preparation steps of the protective film of the present embodiment are as follows:
[0058] (1) According to the number of parts by mass, heat 90 parts of 10# white oil to 115°C, stir for 35 minutes under constant temperature, add 10 parts of styrene-butadiene-styrene block copolymer powder, and reduce the temperature Rising to 135°C, stirring at a constant temperature for 55 minutes to obtain a melt;
[0059] (2) In terms of parts by mass, add 0.2 parts of simethicone, 0.1 parts of dialkyldithiocarbamate, 0.5 parts of maleic anhydride grafting agent, 10 parts of salicylaldehyde acetal Cobalt thiosemicarbazide is stirred evenly to obtain a thermoplastic elastomer in a hot-melt state;
[0060] (3) Add the thermoplastic elastomer to the extruder in a hot-melt state, extrude the thick sheet, and stretch the thick sheet with a stretching machine at 55 ° C; then use the heat fixing method to make the macromolecules have a fixed and uniform Orientation, and then cooling...
Embodiment 2
[0062] The preparation steps of the protective film of the present embodiment are as follows:
[0063] (1) According to the number of parts by mass, heat 100 parts of 10# white oil to 115°C, stir for 35 minutes under constant temperature, add 11 parts of styrene-butadiene-styrene block copolymer powder, and reduce the temperature Rising to 135°C, stirring at a constant temperature for 55 minutes to obtain a melt;
[0064] (2) Add 0.4 parts of simethicone, 0.2 parts of dialkyl dithiocarbamate, 0.8 parts of maleic anhydride grafting agent, 11 parts of salicylaldehyde acetal Cobalt thiosemicarbazide is stirred evenly to obtain a thermoplastic elastomer in a hot-melt state;
[0065] (3) Add the thermoplastic elastomer to the extruder in a hot-melt state, extrude the thick sheet, and stretch the thick sheet with a stretching machine at 55 ° C; then use the heat fixing method to make the macromolecules have a fixed and uniform Orientation, and then cooling treatment to obtain a pr...
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