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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: 2016-11-16
WUHU KAIAOER ENVIRONMENTAL PROTECTION TECH
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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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  • Photodegradable plastic film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Photodegradable plastic film, said film is made of masterbatch through film blowing, including the following substances and parts by weight:

[0017]

[0018] The photodegradant is iron dialkyldithiocarbamate.

[0019] The light stabilizer is that the light stabilizer is 3-keto-4-aza-5a-androstane-17b-carboxylic acid, (S,S)-2,8-diazabicyclo[4, 3,0]nonane, 3,4-dihydro-7-hydroxy-2(1H)-quinolinone, 3-keto-4-aza-5a-androstane-17b-carboxylic acid, (S,S The weight ratio of )-2,8-diazabicyclo[4,3,0]nonane to 3,4-dihydro-7-hydroxyl-2(1H)-quinolinone is 1:0.05:0.05.

[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] Photodegradable plastic film, said film is made of masterbatch through film blowing, including the following substances and parts by weight:

[0024]

[0025] The photodegradant is iron dialkyldithiocarbamate.

[0026] The light stabilizer is that the light stabilizer is 3-keto-4-aza-5a-androstane-17b-carboxylic acid, (S,S)-2,8-diazabicyclo[4, 3,0]nonane, 3,4-dihydro-7-hydroxy-2(1H)-quinolinone, 3-keto-4-aza-5a-androstane-17b-carboxylic acid, (S,S The weight ratio of )-2,8-diazabicyclo[4,3,0]nonane to 3,4-dihydro-7-hydroxy-2(1H)-quinolinone is 1:0.08:0.08.

[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] Photodegradable plastic film, said film is made of masterbatch through film blowing, including the following substances and parts by weight:

[0031]

[0032] The photodegradant is iron dialkyldithiocarbamate.

[0033] The light stabilizer is 3-keto-4-aza-5a-androstane-17b-carboxylic acid, (S,S)-2,8-diazabicyclo[4,3,0]nonane, 3,4-Dihydro-7-hydroxy-2(1H)-quinolinone, 3-keto-4-aza-5a-androstane-17b-carboxylic acid, (S,S)-2,8-di The weight ratio of azabicyclo[4,3,0]nonane to 3,4-dihydro-7-hydroxy-2(1H)-quinolinone is 1:0.1:0.1.

[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 photodegradable plastic film. The film is made of a master batch through blown film, and the master batch includes polyethylene, a photodegradant, a light stabilizer and a lubricant. Compared with the prior art, the mechanical properties of the prepared agricultural film are tested according to the GB 4455-2006 standard, and its tensile strength is ≥14MPa longitudinally and transversely, elongation at break is greater than 300% vertically and transversely, and the right-angle tear strength Longitudinal and transverse ≥55KN / m. The film has good light transmittance, which can increase the production of cotton, and after a 60-day induction period and a 150-day degradation period, the film fragments are less than 1×1cm 2 .

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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IPC IPC(8): C08L23/06C08L23/08C08K5/39C08K5/098C08K5/3437C08K5/3432
CPCC08L23/06C08J5/18C08J2323/06C08J2423/08C08K2201/014C08L2203/16C08L2207/062
Inventor 章云张贝尼
Owner WUHU KAIAOER ENVIRONMENTAL PROTECTION TECH
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