Quick photodegradable plastic film

A technology of plastic film and photodegradation, applied in the field of degradable plastic film, can solve the problems of white pollution, long degradation time of plastic film, reduction of cotton production, etc., and achieve the effect of good light transmission

Inactive Publication Date: 2016-12-21
安徽省中日农业环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the plastic film takes a long time to degrade, and its wide use will cause serious "white pollution"
At present, the main way to solve the "white pollution" of plastic films is to develop degradable agricultural films. The current degradable agricultural films have poor light transmittance, resulting in a reduction in cotton production. After a 60-day induction period and a 150-day degradation period, The fragments are larger than 4×4cm 2 , cannot meet the actual needs

Method used

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  • Quick photodegradable plastic film
  • Quick photodegradable plastic film
  • Quick photodegradable plastic film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] An express delivery photodegradable plastic film, said film is made of blown masterbatch, said masterbatch includes the following materials and parts by weight:

[0017]

[0018] The photodegradation agent is iron dialkyldithiocarbamate.

[0019] The light stabilizer is 2-methoxy-5-[2-(3,4,5-trimethoxyphenyl)ethyl]phenol, diphenyl azide phosphate, 2-methoxy-5 The weight ratio of -[2-(3,4,5-trimethoxyphenyl)ethyl]phenol and diphenyl azide phosphate is 1:0.01.

[0020] The lubricant is zinc stearate;

[0021] The polyethylene includes high-density polyethylene with a weight percentage of 60% and linear low-density polyethylene with 40%;

Embodiment 2

[0023] An express delivery photodegradable plastic film, said film is made of blown masterbatch, said masterbatch includes the following materials and parts by weight:

[0024]

[0025]

[0026] The photodegradation agent is iron dialkyldithiocarbamate.

[0027] The light stabilizer is 2-methoxy-5-[2-(3,4,5-trimethoxyphenyl)ethyl]phenol, diphenyl azide phosphate, 2-methoxy-5 The weight ratio of -[2-(3,4,5-trimethoxyphenyl)ethyl]phenol and diphenyl azide phosphate is 1:0.03.

[0028] The lubricant is zinc stearate;

[0029] The polyethylene includes high-density polyethylene with a weight percentage of 70% and 30% linear low-density polyethylene;

Embodiment 3

[0031] An express delivery photodegradable plastic film, said film is made of blown masterbatch, said masterbatch includes the following materials and parts by weight:

[0032]

[0033] The photodegradation agent is iron dialkyldithiocarbamate.

[0034] The light stabilizer is 2-methoxy-5-[2-(3,4,5-trimethoxyphenyl)ethyl]phenol, diphenyl azide phosphate, 2-methoxy-5 The weight ratio of -[2-(3,4,5-trimethoxyphenyl)ethyl]phenol and diphenyl azide phosphate is 1:0.05.

[0035] The lubricant is zinc stearate;

[0036] The polyethylene includes 75% high-density polyethylene and 25% linear low-density polyethylene with a weight percentage of 75%;

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Abstract

The invention discloses a quick photodegradable plastic film. The film is formed through film blowing of master batch. The master batch is prepared from polyethylene, photodegradation agent, light stabilizer and lubricant. Compared with the prior art, mechanical properties of the prepared film are detected according to the GB4455-2006 standards, the tensile strength of the film in the longitudinal direction and the transverse direction is larger than or equal to 14 MPa, breaking elongation in the longitudinal direction and the transverse direction is larger than or equal to 300%, and right-angle breaking strength in the longitudinal direction and the transverse direction is larger than or equal to 55 KN / m. The film is good in light transparency and has a yield increasing function on cotton, and film fragments are smaller than 2*2 cm<2> after the induction period of 60 d and the degradation period of 90 d.

Description

Technical field [0001] The invention belongs to a degradable plastic film, in particular to a photodegradable plastic film containing polyethylene. Background technique [0002] Agricultural mulch film can play the four functions of moisture preservation, heat preservation, weeding and insecticide, which can greatly increase the yield of crops. The masterbatch of traditional agricultural mulch film is polyethylene, which has excellent physical properties. However, the degradation time of the plastic film is long, and widespread use will cause serious "white pollution". At present, the main way to solve the "white pollution" of plastic films is to develop degradable agricultural film. The current degradable agricultural film has poor light permeability, resulting in a reduction in cotton production. After a 60-day induction period and a 150-day degradation period, The fragment is larger than 4×4cm 2 , Can not meet actual needs. Summary of the invention: [0003] The technical pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/08C08K5/39C08K5/098C08K5/5399C08K5/13C08J5/18
CPCC08L23/06C08J5/18C08J2323/06C08J2423/08C08L2201/06C08L2201/10C08L2203/16C08L2207/062C08L23/0815C08K5/39C08K5/098C08K5/5399C08K5/13
Inventor 章云张贝尼
Owner 安徽省中日农业环保科技有限公司
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