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Fully degraded polyethylene plastic film and preparation method thereof

A technology for plastic film and plastic degradation, which is applied in the field of plastic film to achieve the effects of reducing film pollution, increasing the degradation rate and shortening the total degradation time.

Inactive Publication Date: 2019-10-15
SUZHOU LUORUIKA NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem mainly solved by the present invention is to provide a fully degradable polyethylene plastic film and its preparation method, which can solve the above-mentioned problems existing in existing degradable plastics

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The invention discloses a fully degradable polyethylene plastic film with a thickness of 0.001-0.1 mm, which comprises the following components in parts by weight: 100 parts of polyethylene, 5 parts of ecologically degradable plastic masterbatch, 20 parts of starch, 8 parts of nano zinc oxide, 8 parts of ascorbic acid, 15 parts of polyvinyl alcohol and 10 parts of cellulose acetate; wherein, the particle size of the starch is 1-5 μm.

[0022] The preparation method of above-mentioned fully degradable polyethylene plastic film, comprises the steps:

[0023] (1) Material mixing: Weigh polyethylene, ecologically degradable plastic masterbatch, starch and nano-zinc oxide in the internal mixer with cooling water cooling function. After high-speed stirring and mixing, add ascorbic acid, poly Vinyl alcohol and cellulose acetate are stirred slowly under constant temperature control until they are evenly mixed;

[0024] Specifically, the process conditions of the high-speed sti...

Embodiment 2

[0032] The invention discloses a fully degradable polyethylene plastic film with a thickness of 0.1-0.5 mm, which comprises the following components in parts by weight: 100 parts of polyethylene, 30 parts of ecologically degradable plastic masterbatch, 30 parts of starch, 15 parts of nano zinc oxide, 15 parts of ascorbic acid, 20 parts of polyvinyl alcohol and 15 parts of cellulose acetate; wherein, the particle diameter of the starch is 1-5 μm.

[0033] The preparation method of above-mentioned fully degradable polyethylene plastic film, comprises the steps:

[0034] (1) Material mixing: Weigh polyethylene, ecologically degradable plastic masterbatch, starch and nano-zinc oxide in the internal mixer with cooling water cooling function. After high-speed stirring and mixing, add ascorbic acid, poly Vinyl alcohol and cellulose acetate are stirred slowly under constant temperature control until they are evenly mixed;

[0035] Specifically, the process conditions of the high-spee...

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PUM

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Abstract

The invention discloses a fully degraded polyethylene plastic film and a preparation method thereof. The fully degraded polyethylene plastic film is prepared from the following components in parts byweight: 100 parts of polyethylene, 5-30 parts of biodegraded plastic masterbatch, 20-30 parts of starch, 8-15 parts of nano zinc oxide, 8-15 parts of ascorbic acid, 15-20 parts of polyvinyl alcohol and 10-15 parts of cellulose acetate. According to the fully degraded polyethylene plastic film and the preparation method thereof, the prepared polyethylene plastic film can integrate microbial degradation, photocatalytic degradation, biodegradation and thermal degradation by reasonably proportioning raw materials, so that the degrading rate is improved effectively. The polyethylene film can be fully degraded, the full-degrading time is shortened greatly, and an obvious promoting effect to reduce film pollution is exerted.

Description

technical field [0001] The invention relates to the field of plastic films, in particular to a fully degradable polyethylene plastic film and a preparation method thereof. Background technique [0002] my country is a country with a large population and a large agricultural production country. The consumption of various plastic bags and plastic film products is huge, ranking first in the world. It also brings white pollution problems that need to be solved urgently. Therefore, the degradation of plastic film is the primary task of environmental governance. [0003] Due to its good processability, excellent performance and low price, polyethylene is the main component of various plastic films or bags. Therefore, it is very important to study and prepare degradable polyethylene plastics. Most of the existing degradable plastic products adopt a degradation method, such as biodegradation, photocatalytic degradation, etc., which usually lead to defects such as slow degradation ...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L3/02C08L29/04C08L1/12C08K3/22C08J5/18
CPCC08J5/18C08J2323/06C08J2401/12C08J2403/02C08J2429/04C08K2003/2296C08K2201/011
Inventor 张文奇
Owner SUZHOU LUORUIKA NEW MATERIAL TECH CO LTD