Mixed solvent used for cellulose acetate film as packaging material, method for softening cellulose acetate film and packaging method
A technology of a cellulose acetate film and a packaging method, applied in the field of packaging, can solve the problems of hard texture, weak tensile deformation ability, and difficult to fit completely, etc. of the cellulose acetate film
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Embodiment 1
[0028] Mixed solution is made up of following parts by weight:
[0029] Methanol: 6 parts
[0030] Acetone: 15 parts
[0031] Acetic acid: 13 parts
[0032] Water: 60 parts;
[0033] The cellulose acetate membrane material was cut into a square of 7cm*7cm, soaked in the prepared mixed solution for 30 minutes, and the treated membrane material was subjected to a tensile test with a tensile testing machine, and the elongation at break was 18%.
Embodiment 2
[0035] Mixed solution is made up of following parts by weight:
[0036] Methanol: 6 parts
[0037] Acetone: 15 parts
[0038] Acetic acid: 13 parts
[0039] Water: 60 parts;
[0040] Before mixing the solution, heat each component to 30°C, cut the cellulose acetate membrane material into a square of 7cm*7cm, soak it in the prepared mixed solution for 25 minutes, and perform a tensile test on the treated membrane material. Tensile test, the elongation at break is 20%.
Embodiment 3
[0042] Mixed solution is made up of following parts by weight:
[0043] Methanol: 6 parts
[0044] Acetone: 15 parts
[0045] Acetic acid: 13 parts
[0046] Water: 60 parts;
[0047] Cut the cellulose acetate membrane material into a square of 7cm*7cm, soak it in the prepared mixed solution for 20 minutes, put it in the refrigerator and keep the temperature at 4°C for 5 minutes, and conduct a tensile test on the treated membrane material Machine tensile test, the elongation at break is 20%.
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