Nano antibacterial and controllable photodegradation and biodegradation polyethylene plastic film and method for preparing same

[0040] Embodiment 1: A kind of polyethylene nano antibacterial and controllable light, biodegradable plastic film, it is made up of following components by weight ratio: starch 7.88 parts, glycerin 0.4 part, urea 0.1 part, acrylic acid 0.8 part , 2 parts of ferrocene, 1 part of ferric stearate, 0.1 part of zinc stearate, 0.3 part of titanate coupling agent, 0.3 part of antioxidant 1010, 87.8 parts of linear low density polyethylene, 0.3 part of oxidized polyethylene , Nano TiO 2 10 parts, 0.3 parts of maleic anhydride grafted POE, and 0.7 parts of ethylene-vinyl acetate copolymer.

[0041] The preparation method of the above-mentioned light and biodegradation antibacterial polyethylene film is an extrusion method. The specific production steps of the extrusion method are as follows:

[0042] (1) After baking 7.88 grams of starch at 105°C for 4.5 hours, react with 0.8 grams of acrylic acid in a high-speed mixer for 0.5 hours, add 0.4 grams of glycerin, 0.1 grams of urea, 0.1 gr

[0046] Embodiment 2: a polyethylene nano antibacterial and controllable light, biodegradable plastic film, it is made of the following components in parts by weight: 10.2 parts of starch, 0.5 parts of glycerin, 0.2 parts of urea, coupling agent 1.1 parts, 0.1 parts of iron dialkyldithiocarbamate, 0.1 parts of iron stearate, 0.04 parts of zinc stearate, 0.3 parts of titanate coupling agent, 60.3 parts of linear low density polyethylene, nano-TiO 2 0.4 parts, antioxidant 10100.2 parts, CaCO 3 25 parts, 0.3 parts of oxidized polyethylene, 0.3 parts of maleic anhydride grafted POE, and 0.89 parts of ethylene-vinyl acetate copolymer.

[0047] The production method of the present embodiment is the same as that of Embodiment 1, and is also an extrusion method.

[0048] Embodiment 3: a polyethylene nano antibacterial and controllable light, biodegradable plastic film, it is made of the following components by weight and number: 12.5 parts of starch, 1.5 parts of glycerin, 0.8 parts of urea, 0.92 parts of acrylic acid , 0.15 parts of benzophenone, 0.15 parts of iron stearate, 0.05 parts of zinc stearate, 0.4 parts of titanate coupling agent, 40.9 parts of linear low density polyethylene, 30 parts of low density polyethylene, nano TiO 2 0.2 parts, Haier antibacterial agent 0.1 part, silver antibacterial agent 0.4 part, antioxidant 1010 0.32 part, CaCO 3 10 parts, 0.38 parts of oxidized polyethylene, 0.3 parts of maleic anhydride grafted POE, and 1 part of ethylene-vinyl acetate copolymer.

[0049] The production method of the present embodiment is the same as that of Embodiment 1, and is also an extrusion method.