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

A technology of plastic film and polyethylene, which is applied in the fields of biodegradable plastic film and its preparation, polyethylene nano-antibacterial and controllable light, can solve the problems of rarely found films, achieve cost reduction, easy access to materials, and reduce damage to the environment. The effect of environmental pollution

Inactive Publication Date: 2005-06-29
SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Due to the need to overcome certain technical difficulties in the preparation of films that combine antibacterial properties with controllable light and biodegradation properties, there are few films that combine antibacterial properties with controllable light and biodegradation properties on the market.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[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...

Embodiment 2

[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.

Embodiment 3

[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.

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Abstract

Disclosed are a polyethylene nm antibacterial biological couple degradable plastic film and its preparing method. It is comprised of the following components with the mass ratio: starch: photo sensitizer: plasticizer: coupling agent: polyethylene: modifier =10~100:0.1~30:0.5~30:0.3~35:0.1~10:0.5~25:130~26:0.1~53. With antibacterial effect and can be broken down faster by the effects of both light and biologic, the invention has replaced the conventional product with much loss of plastic, it can solve environment pollution existing in the usual plastic film, benefiting for environmental protection. It has the advantaged not existing in the present plastic film, simplified productive technique and low cost.

Description

Technical field [0001] The invention relates to a biological double-degradation plastic film, in particular to a polyethylene nano-antibacterial, light-controllable, biological double-degradation plastic film and a preparation method thereof. Background technique [0002] As everyone knows, the agricultural mulch film, shopping bag, garbage bag etc. that existing polyethylene plastic is made, have brought great benefit to industry, agricultural production, people's daily life. However, most of these films lack bactericidal and antibacterial effects, and the problem of environmental pollution caused by discarded plastic waste has become a global public hazard. These plastic wastes are buried underground, occupying land and are difficult to decompose for a long time. The residual mulch film is scattered in the field soil, destroying the soil structure and farming conditions, and greatly reducing the yield of crops. Livestock are prone to disease and even death if they eat the...

Claims

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Application Information

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IPC IPC(8): B29C49/04C08J5/18C08K5/39C08L23/06
Inventor 李三喜刘旭燕许巍巍伞小广张翀
Owner SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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