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Double degradation plastic film and production method thereof

A plastic film and production method technology, applied in the field of plastics, can solve the problems that are not conducive to the rapid and effective treatment of plastic waste, shorten the service life of landfills, increase the difficulty of blown film processing, etc., and achieve high practical value and operation Easy, long life effect

Inactive Publication Date: 2003-05-21
玉环县星光包装厂(普通合伙) +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this way, the cost of the product is greatly increased, and the difficulty of blown film processing is increased, especially when it is necessary to process thinner plastic films
In addition, more importantly, the use of simple biodegradation takes a long time to degrade, which is not conducive to the rapid and effective treatment of plastic waste and shortens the service life of landfills.

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0030] The raw materials were weighed according to the following weights: 37 kg of polyethylene, 8 kg of degraded starch, 0.15 kg of photodegradable additive, 4 kg of glycerin, and 0.6 kg of ethylene-propylene copolymer. The degraded starch here can be mainly made of corn. Since starch can be decomposed by microorganisms in soil, it can be biodegraded. In this embodiment, N, N-dialkyldithiocarbamate iron is used as the photodegradation additive.

[0031] The ingredients are then mixed and placed in a dryer to dry. The temperature of the dryer is controlled at about 50°C. The dried raw materials are blown by a film blowing machine. The temperature of the blown film is controlled at about 180°C.

[0032] Finally, the plastic film obtained by the film blowing machine can be made into various packaging bags.

[0033] The double-degradable film bag obtained according to this embodiment has passed the inspection of the national authority—Shanghai Plastic Products Quality Superv...

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Abstract

The present invention relates to a double-degradation plastic film and its production method. Its raw material includes polythene, degradable starch, photodegradable additive, glycerine and ethylpropylene copolymer, the photodegradable additive can be any one of metal salt of N,N-dialkyl dithiocarbamic acid, titanium dioxide or calcium oxide. Said invention adopts the combination of photodegradation and biological degradation to imptement said invented degradation. Said film can be used for making various packaging bags.

Description

technical field [0001] The invention belongs to the technical field of plastics, in particular to a plastic film with a degradation function and a production method thereof. Background technique [0002] As a material, plastic has penetrated into various fields of industry, agriculture, national defense and daily life, bringing great convenience to people's life. Currently, 30% of the plastic produced each year is used for packaging. Most of the plastic film used for packaging becomes solid waste after one-time use. The traditional methods of dealing with plastic waste are recycling and incineration. Due to the light weight, bulk and quantity of plastic film, it is generally difficult to recycle. And the method of adopting incineration can produce a large amount of poisonous gas again, causes air pollution. Therefore, the "white pollution" caused by plastic waste has seriously polluted the human living environment and become a worldwide public haza...

Claims

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Application Information

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IPC IPC(8): C08J5/18C08K5/39C08L3/02C08L23/06
Inventor 鲍云华罗邦财
Owner 玉环县星光包装厂(普通合伙)
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