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Degradable plastic film and production method thereof

A technology for degrading plastics and plastic films, applied in the treatment and recycling process of crop waste and the field of plastic granulation, can solve the problems of wasting the value of straw, causing air and safety hazards, and achieving good surface finish, stable state, easy to use The effect of production and processing

Inactive Publication Date: 2017-09-12
HEILONGJIANG XINDA ENTERPRISE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method not only wastes the potential value of crop straw, but also causes air pollution
The smoke generated during incineration will block the line of sight and cause safety hazards, and the flames during incineration may also cause fires

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Crush corn stalks into 120-mesh powder, use wood-plastic coupling agent, calcium stearate, and white oil as plastic additives, and mix with blown film grade polylactic acid; corn stalks, wood-plastic coupling agent, calcium stearate , white oil, and blown film grade polylactic acid are respectively 20 parts, 5 parts, 2 parts, 1.5 parts, and 70 parts. After that, it is extruded and granulated by a twin-screw extruder. The plastic particles produced by this method are blown into film by a single-screw extruder to produce film products with corresponding filling content.

Embodiment 2

[0017] Crush corn stalks into 120-mesh powder, use wood-plastic coupling agent, calcium stearate, white oil as plastic additives, mix with blown film grade polylactic acid, corn stalks, wood-plastic coupling agent, calcium stearate , white oil, and blown film grade polylactic acid are respectively 25 parts, 4 parts, 2.5 parts, 2 parts, and 65 parts. After that, it is extruded and granulated by a twin-screw extruder. The plastic particles produced by this method are blown into film by a single-screw extruder to produce film products with corresponding filling content.

Embodiment 3

[0019] Crush corn stalks into 120-mesh powder, use wood-plastic coupling agent, calcium stearate, white oil as plastic additives, mix with blown film grade polylactic acid, corn stalks, wood-plastic coupling agent, calcium stearate , white oil, and blown film grade polylactic acid are 30 parts, 4.5 parts, 2 parts, 2 parts, and 60 parts respectively. After that, it is extruded and granulated by a twin-screw extruder. The plastic particles produced by this method are blown into film by a single-screw extruder to produce film products with corresponding filling content.

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PUM

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Abstract

A degradable plastic film and a production method thereof, relating to the technical field of plastic extrusion blow molding, comprising drying crop straw fragments with a length of 1.5-2.0 mm and mixing them with plastics and plastic additives; plastics, natural plant fibers, plastics The additives are 60-70 parts, 20-30 parts and 5-10 parts respectively, and are extruded and granulated by a twin-screw extruder; the granules are fed into a single-screw extruder for film blowing. The formed film is uniform and stable, and can replace conventional plastic bags such as polypropylene. It has good surface finish, high strength, good toughness, and comfortable hand feeling. The invention can reduce the cost of degradable plastics, and the longest degradation period is 180 days.

Description

technical field [0001] The invention relates to the technical field of plastic granulation and film blowing, and also relates to the technical field of processing and recycling of agricultural waste. Background technique [0002] With the development of the plastics industry, the scope of application of plastics in daily life has become wider and wider, and the amount of use has become larger. Since most of these plastics are non-degradable materials, while consuming a large amount of petroleum resources, the waste produced will also cause huge pollution. [0003] Crop straw refers to the waste in the process of agricultural production, which is usually incinerated. This method not only wastes the potential value of crop straw, but also causes air pollution. The smoke generated during the incineration will block the line of sight and cause safety hazards, and the flames during incineration may also cause fires. Contents of the invention [0004] The object of the presen...

Claims

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Application Information

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IPC IPC(8): C08L67/04C08L97/02C08L91/06C08K5/098
CPCC08L67/04C08J5/18C08J2367/04C08J2497/02C08L2201/06C08L2203/16C08L2205/03
Inventor 张海斌崔成杰谢众
Owner HEILONGJIANG XINDA ENTERPRISE GRP
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