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Polyolefin film and manufacturing method thereof

A manufacturing method and polyolefin technology, applied in the field of polyolefin film, can solve the problems of mechanical and physical properties of the film, the inability to obtain transparent polyolefin film, etc., and achieve excellent compatibility, environmental protection, and pollution avoidance effects

Active Publication Date: 2010-06-02
GUANGDONG ANDELI NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the need to add starch or modified starch to achieve oxidation and biodegradation, the addition of starch will eventually affect the mechanical and physical properties of the film, especially the optical properties (luminosity and transparency) of the film. Obtain polyolefin film with good transparency

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] First, manufacture prodegradants according to the following steps: (1) by weight, take by weight 10 parts of potassium ferrite trioxalate, 5.5 parts of ferrous pyrophosphate, 10 parts of aluminate, and 54.5 parts of low-density polyethylene and 20 parts of ferrous bisglycinate chelate; (2) mix and stir 10~20 minutes with ferrous potassium trioxalate trihydrate, ferrous pyrophosphate, aluminate and ferrous bisglycinate chelate, then static Set aside for 10 to 20 minutes to obtain the mixture; (3) Mix the mixture obtained in step (2) with low-density polyethylene, and stir until the mixture is uniform to obtain the granulation raw material; (4) Mix the granulation obtained in step (3) The raw materials are granulated on a granulator to obtain prodegradants. In the degradation aid obtained, the weight ratio of each component is: 10 parts of potassium ferrite trihydrate trioxalate, 5.5 parts of ferrous pyrophosphate, 10 parts of aluminate, 54.5 parts of low density polyethy...

Embodiment 2

[0017] First, manufacture prodegradants according to the following steps: (1) by weight, take 13 parts of potassium ferrate trihydrate, 5 parts of ferrous pyrophosphate, 5.5 parts of aluminate, and 64.5 parts of low-density polyethylene and 12 parts of ferrous bisglycinate chelate; (2) mix and stir for 10 to 20 minutes with ferrous potassium trioxalate trihydrate, ferrous pyrophosphate, aluminate and ferrous bisglycinate chelate, and then statically Set aside for 10 to 20 minutes to obtain the mixture; (3) Mix the mixture obtained in step (2) with low-density polyethylene, and stir until the mixture is uniform to obtain the granulation raw material; (4) Mix the granulation obtained in step (3) The raw materials are granulated on a granulator to obtain prodegradants. In the degradation aid obtained, the weight ratio of each component is: 13 parts of potassium ferrite trihydrate trioxalate, 5 parts of ferrous pyrophosphate, 5.5 parts of aluminate, 64.5 parts of low density polye...

Embodiment 3

[0021]First, manufacture prodegradants according to the following steps: (1) by weight, take by weight 25 parts of potassium ferrite trioxalate, 6 parts of ferrous pyrophosphate, 8 parts of aluminate, and 46 parts of low-density polyethylene and 15 parts of ferrous bisglycinate chelate; (2) potassium trioxalate ferrous trihydrate, ferrous pyrophosphate, aluminate and ferrous bisglycinate chelate were mixed and stirred for 10 to 20 minutes, then static Set aside for 10 to 20 minutes to obtain the mixture; (3) Mix the mixture obtained in step (2) with low-density polyethylene, and stir until the mixture is uniform to obtain the granulation raw material; (4) Mix the granulation obtained in step (3) The raw materials are granulated on a granulator to obtain prodegradants. In the degradation aid obtained, the weight ratio of each component is: 25 parts of potassium ferrite trihydrate trioxalate, 6 parts of ferrous pyrophosphate, 8 parts of aluminate, 46 parts of low density polyeth...

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PUM

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Abstract

The invention provides a polyolefin film capable of being degraded completely and a manufacturing method thereof. The polyolefin film consists of the following components in percentage by weight: 10 to 80 percent of low density polyethylene; 0 to 40 percent of metallocene linear low density polyethylene; 0.5 to 5.0 percent of prodegradant; and 0 to 60 percent of ethylene vinyl acetate copolymer. The preferred prodegradant is a composition consisting of tripotassium trioxalatoferrate, ferrous pyrophosphate, aluminic ester, low density polyethylene and ferrous biglycinate chelate. The polyolefin film of the invention can be degraded completely, has the advantages of easy processing and lower manufacturing cost, and can obtain excellent transparency.

Description

technical field [0001] The invention relates to a polyolefin film, in particular to a fully degradable polyolefin film and a manufacturing method thereof. Background technique [0002] Plastic has the advantages of light weight, high strength, good wear resistance, good chemical stability, strong chemical resistance, good insulation performance, and economic benefits, so it has been widely used in production and life. However, almost all traditional plastics are made of non-renewable petroleum products, and their main components are hydrocarbons, which can be burned. They are resistant to acids, alkalis, and difficult to decompose, so they cannot be decomposed naturally; especially disposable plastics The environmental pollution (the so-called "white pollution") caused by plastic packaging waste and plastic agricultural mulch film being discarded at will by people has caused long-term and deep-seated ecological environmental problems. In order to relieve environmental press...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L23/08C08L31/04C08K13/02C08K5/56C08K3/32C08K5/10C08K5/17
Inventor 王丹旭
Owner GUANGDONG ANDELI NEW MATERIALS CO LTD
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