High-temperature resistant fresh-keeping film and production process thereof

[0017] A high-temperature-resistant plastic wrap, which consists of the following components in parts by weight: 100 parts of polymethylpropylene, 5 parts of dioctyl phthalate, 2 parts of polyvinyl alcohol, 3 parts of dioctyl adipate, 3 parts of dioctyl dioic acid, 4 parts of polyimide, 3 parts of dioctyltin dodecyl acid, 4 parts of polyphenylsulfone diphenyl phosphonate, polyoxyethylene lauryl ether EO=101 parts, two 2 parts of silicon oxide, 100 parts of water.

[0018] Its production process comprises the following steps:

[0019] (1) Dissolution: Take the various raw materials according to the weight ratio, mix and stir at 175°C to dissolve;

[0020] (2) Film blowing: Pour the solution in step 1 into a twin-screw extruder, extrude and masticate, and blow the film. The temperature of the blown film is 130°C, and the speed of the twin-screw extruder is 20r / min;

[0021] (3) Rolling, cutting, boxing, and shipping: Cut the rolled film according to product specifications of d...

[0023] A high-temperature-resistant plastic wrap, which consists of the following components in parts by weight: 100 parts of polymethylpropylene, 4 parts of dioctyl phthalate, 1 part of polyvinyl alcohol, 4 parts of dioctyl adipate, 4 parts of dioctyl dioic acid, 4 parts of polyimide, 3 parts of dioctyltin dodecyl acid, 5 parts of polyphenylsulfone diphenyl phosphonate, polyoxyethylene lauryl ether EO=101 parts, two 2 parts of silicon oxide, 100 parts of water.

[0024] Its production process comprises the following steps:

[0025] (1) Dissolution: Take the various raw materials according to the weight ratio, mix and stir at 180°C to dissolve;

[0026] (2) Film blowing: Pour the solution in step 1 into the twin-screw extruder, extrude and masticate, and blow the film. The temperature of the blown film is 140°C, and the speed of the twin-screw extruder is 25r / min;

[0027] (3) Rolling, cutting, boxing, and shipping: Cut the rolled film according to product specifications of ...

[0029] A high-temperature-resistant plastic wrap, which is composed of the following components in parts by weight: 100 parts of polymethylpropylene, 6 parts of dioctyl phthalate, 2 parts of polyvinyl alcohol, 3 parts of dioctyl adipate, 2 parts of dioctyl dioic acid, 2 parts of polyimide, 5 parts of dioctyltin dodecyl acid, 3 parts of polyphenylsulfone diphenyl phosphonate, polyoxyethylene lauryl ether EO=102 parts, two Silicon oxide 1 part, water 100 parts.

[0030] Its production process comprises the following steps:

[0031] (1) Dissolution: Take the various raw materials according to the weight ratio, mix and stir at 178°C to dissolve;

[0032] (2) Film blowing: Pour the solution in step 1 into the twin-screw extruder, extrude and plasticize, and blow the film. The temperature of the blown film is 170°C, and the speed of the twin-screw extruder is 35r / min;

[0033] (3) Rolling, cutting, boxing, and shipping: Cut the rolled film according to product specifications of di...