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Environment-friendly mulching film easy for recycling and preparation method thereof

An easy-to-recycle, mulch technology, applied in the fields of botany equipment and methods, plant protection, plant protection cover, etc., can solve the problems of incomplete mulch shape, low physical and mechanical performance indicators, difficult to recycle, residual film pollution, etc., reaching a wide range of regions. , the protection of cultivated land and the environment, the effect of high residual strength

Active Publication Date: 2016-03-02
SHANDONG COTTON RES CENT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide an easy-to-recycle environmental-friendly mulch film and its preparation method, which solves the problem of residual film pollution caused by the incomplete shape of the mulch film after use and the low physical and mechanical performance index that makes it difficult to recycle.

Method used

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  • Environment-friendly mulching film easy for recycling and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Weigh by weight: 10 parts of high pressure low density polyethylene, 50 parts of linear low density polyethylene resin, 25 parts of high pigment carbon black, 3.5 parts of polyethylene wax, 0.5 parts of coupling agent, 6 parts of polymerized hindered amine light stabilizer 2 parts, 2 parts of antioxidant, 3 parts of acid scavenger; Knead the above composition in an internal mixer at 130°C for 25 minutes, and then use a granulator to melt, plasticize and granulate to obtain the special anti-aging masterbatch A for mulch film.

[0034] Weigh by weight: 20 parts of high-pressure low-density polyethylene, 65 parts of linear low-density polyethylene resin, 8 parts of polymerized hindered amine light stabilizer, 2.5 parts of antioxidant, 4.5 parts of acid scavenger; Knead in an internal mixer at 130°C for 25 minutes, and then use a granulator to melt, plasticize and granulate to obtain the anti-aging masterbatch B for mulch film.

[0035] Weigh by weight: 80 parts of linear l...

Embodiment 2

[0039] The special anti-aging masterbatch A for mulching film and the special anti-aging masterbatch B for mulching film and the preparation method are the same as in Example 1, and are different from Example 1 as follows:

[0040] Weigh by weight: 70 parts of linear low-density polyethylene resin, 15 parts of metallocene polyethylene resin, 8 parts of high-density polyethylene, 7 parts of aging-resistant masterbatch for plastic film; fully mix the above compositions in a high-speed kneader Finally, it will be used as the A layer material.

[0041]Weigh by weight: 80 parts of linear low-density polyethylene resin, 10 parts of metallocene polyethylene resin, 8 parts of high-density polyethylene, 7 parts of anti-aging masterbatch for plastic film; fully mix the above compositions in a high-speed kneader Finally, it will be used as the B layer material.

[0042] The materials for layer A and layer B are blown into a mulch film with a thickness of 0.008 mm and a width of 900 mm w...

Embodiment 3

[0044] The special anti-aging masterbatch A for mulching film and the special anti-aging masterbatch B for mulching film and the preparation method are the same as in Example 1, and are different from Example 1 as follows:

[0045] Weigh by weight: 60 parts of linear low-density polyethylene resin, 20 parts of metallocene polyethylene resin, 5 parts of high-density polyethylene, 10 parts of anti-aging masterbatch A for plastic film; fully mix the above compositions in a high-speed kneader Finally, it will be used as the A layer material.

[0046] Weigh by weight: 65 parts of linear low-density polyethylene resin, 20 parts of metallocene polyethylene resin, 5 parts of high-density polyethylene, 10 parts of anti-aging masterbatch B for plastic film; fully mix the above compositions in a high-speed kneader Finally, it will be used as the B layer material.

[0047] The materials for layer A and layer B are blown into a mulch film with a thickness of 0.008 mm and a width of 900 mm...

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Abstract

The invention discloses an environment-friendly mulching film easy for recycling and a preparation method thereof. The environment-friendly mulching film easy for recycling has a single layer structure or an A / B layer structure, and contains, by weight, linear low density polyethylene resin, metallocene polyethylene resin, high density polyethylene and a special anti-aging masterbatch for mulching film; and the special anti-aging masterbatch for mulching film contains, by weight, high-pressure low density polyethylene, powdery linear polyethylene resin, high color black, polyethylene wax, a coupling agent, a polymeric hindered amine light stabilizer, an antioxidant and an acid capturing agent. After crop harvest, the mulching film product remains relatively complete morphology and high strength, is easy for manual or mechanical recycling, and leaves little residue mulch in the soil, so as to protect the soil tillage layer, and reduce the pollution of film residue on the environment.

Description

technical field [0001] The invention relates to a mulch film, in particular to an easily recyclable and environment-friendly mulch film and a preparation method thereof. Background technique [0002] Plastic film mulching cultivation can effectively increase crop yield and benefit, especially in arid, semi-arid and high latitude areas, plastic film mulching creates a suitable growth environment for crops and greatly increases crop yield. According to statistics, there are more than 50 kinds of mulch crops in China, and the annual consumption of mulch film exceeds 1.3 million tons, covering an area of ​​nearly 300 million mu, ranking first in the world in both total usage and crop coverage area. Because ordinary plastic film is difficult to recycle after use, the residual plastic film pollutes the soil and the environment, resulting in reduced crop production. Common mulch picking and cleaning requires a lot of manpower and material resources. Research on easy-to-recycle mul...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08L23/06C08K13/02C08K3/04C08K3/22C08K5/17C08J3/22C08J5/18A01G13/02B29C47/06B29C55/28
CPCA01G13/0275B29C48/18B29C55/28C08J3/223C08J5/18C08J2323/08C08J2423/06C08L23/0815C08L2201/08C08L2203/16C08L2205/025C08L2205/035C08L23/06C08K13/02C08K3/04C08K2003/2296C08K5/17
Inventor 徐志民董合忠
Owner SHANDONG COTTON RES CENT
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