Rapid photodegradable plastic film

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

Inactive Publication Date: 2016-12-07
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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  • Rapid photodegradable plastic film
  • Rapid photodegradable plastic film
  • Rapid photodegradable plastic film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Express photodegradable plastic film, the film is blown from masterbatch, and the masterbatch includes the following substances and parts by weight:

[0017]

[0018] The photodegradant is iron dialkyldithiocarbamate.

[0019] The light stabilizer is 2-methoxy-5-[2-(3,4,5-trimethoxyphenyl) ethyl]phenol, diphenyl phosphoric azide, 2-(2-nitro A mixture of anilino)-3-cyano-5-methylthiophene, 2-methoxy-5-[2-(3,4,5-trimethoxyphenyl)ethyl]phenol, diphosphoryl azide The weight ratio of phenyl ester to 2-(2-nitroanilino)-3-cyano-5-methylthiophene is 1:0.01:0.1.

[0020] Described lubricant is zinc stearate;

[0021] The polyethylene includes 60% high-density polyethylene and 40% linear low-density polyethylene in weight percent concentration;

Embodiment 2

[0023] Express photodegradable plastic film, the film is blown from masterbatch, and the masterbatch includes the following substances and parts by weight:

[0024]

[0025] The photodegradant is iron dialkyldithiocarbamate.

[0026] The light stabilizer is 2-methoxy-5-[2-(3,4,5-trimethoxyphenyl) ethyl]phenol, diphenyl phosphoric azide, 2-(2-nitro A mixture of anilino)-3-cyano-5-methylthiophene, 2-methoxy-5-[2-(3,4,5-trimethoxyphenyl)ethyl]phenol, diphosphoryl azide The weight ratio of phenyl ester to 2-(2-nitroanilino)-3-cyano-5-methylthiophene is 1:0.3:0.3.

[0027] Described lubricant is zinc stearate;

[0028] The polyethylene includes 70% high-density polyethylene and 30% linear low-density polyethylene by weight;

Embodiment 3

[0030] Express photodegradable plastic film, the film is blown from masterbatch, and the masterbatch includes the following substances and parts by weight:

[0031]

[0032] The photodegradant is iron dialkyldithiocarbamate.

[0033] The light stabilizer is 2-methoxy-5-[2-(3,4,5-trimethoxyphenyl) ethyl]phenol, diphenyl phosphoric azide, 2-(2-nitro A mixture of anilino)-3-cyano-5-methylthiophene, 2-methoxy-5-[2-(3,4,5-trimethoxyphenyl)ethyl]phenol, diphosphoryl azide The weight ratio of phenyl ester to 2-(2-nitroanilino)-3-cyano-5-methylthiophene is 1:0.05:0.5.

[0034] Described lubricant is zinc stearate;

[0035] The polyethylene includes 75% high-density polyethylene and 25% linear low-density polyethylene by weight;

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Abstract

The invention discloses a rapid photodegradable plastic film, which is formed by blowing with master batches, which comprise the following materials: polyethylene, a photo degradation agent, a light stabilizer and a lubricant. Compared with the prior art, the film has the advantages that the mechanical properties of the prepared film are detected according to the GB4455-2006 standard, the tensile strength is more than or equal to 14MPa in longitudinal and transverse directions, the elongation at break is more than or equal to 300% in longitudinal and transverse directions, and the right angle tearing strength is more than or equal to 55KN / m in longitudinal and transverse directions. The film has good light transmittance and has a yield increase effect on cotton. After 60 days of induction period and 90 days of degradation period, the film fragment is less than 1 * 1cm<2> in size.

Description

technical field [0001] The invention belongs to degradable plastic films, in particular to photodegradable plastic films containing polyethylene. Background technique [0002] Agricultural mulch can play four functions of moisture conservation, heat preservation, weeding and insecticide, and can greatly increase the yield of crops. The masterbatch of traditional agricultural mulch is polyethylene, which has excellent physical properties. However, the degradation time of this plastic film is long, and its extensive 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 , can not meet the actual needs. Invention content: [0003] The technical prob...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/08C08K5/00C08K5/39C08K5/13C08K5/523C08K5/45
CPCC08L23/06C08L2203/16C08L2207/062C08L23/0815C08K5/00C08K5/39C08K5/13C08K5/523C08K5/45
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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