Peanut-specific double-effect in-one degradable mulch film

A technology for degrading mulch and peanuts, applied in the field of agricultural applications, can solve the problems of residual film accumulation, unfavorable agricultural environmental protection, etc., and achieve the effect of avoiding pollution

Active Publication Date: 2019-10-25
JILIN ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Long-term accumulation will cause the accumulation of residual film as usual, which is not conducive to the protection of agricultural environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Peanut-specific double-effect in-one degradable mulch film is composed of mulch base resin and peanut-specific double-effect in-one degradable additive components: the mass fraction ratio of mulch base resin and peanut-specific double-effect in-one degradable additive components is 100:4.315~11.42 The mulch base resin is linear low-density polyethylene; the special double-effect-in-one degradation additive component for peanuts includes: autoxidation component A: containing more than 80% of unsaturated fatty acids such as oleic acid, linoleic acid and linolenic acid The soybean oil in the special double-effect-in-one degradable plastic film for peanuts accounts for 0.5-0.8% by mass. Oxidant promoting component B: partially neutralized maleic anhydride-acrylic acid potassium or sodium salt, which accounts for 1.0-2% by mass in the special double-effect in-one degradation film for peanuts. Degradation catalytic component C: fine powder of potassium permanganate, which acc...

Embodiment 2

[0029] The difference from Example 1 is that the base resin of the mulching film is a mixture of linear low-density polyethylene and low-density polyethylene, and the mass percentage of the two is 30-70:70-30; other parameters are completely the same.

Embodiment 3

[0031] The difference from Example 1 is that the mulch base resin is a mixture of linear low-density polyethylene and metallocene-catalyzed linear low-density polyethylene, and the mass percentage of the two is 95-85:5-15; other parameters are exactly the same .

[0032] In this specific implementation, the benzoxazolyl-based fluorescent whitening agent 0B, which only weakens the photosensitization of ultraviolet light without the negative effects of scavenging, quenching, trapping and decomposing free radicals that can cause degradation, is added without damaging free radicals. If the induction period of degradation is realized under certain circumstances, the degradation induction period is about 90 days, which meets the needs of peanut growth and development; the self-oxidizing agent can be used for photosensitization with the participation of ultraviolet light, or for oxidation without the participation of ultraviolet light. Generate free radicals that attack the residual ...

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PUM

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Abstract

The invention discloses a special double-effect in-one degradation film for peanuts. The degradable film is prepared by mixing the base resin of the film and a special double-effect in-one degradation additive for peanuts at a mass ratio of 100:4.315-11.42; the special double-effect in-one degradation additive for peanuts The autoxidation component A-soybean oil containing more than 80% unsaturated fatty acid, the oxidation-promoting component B-partially neutralized maleic anhydride-potassium acrylate or sodium salt, the oxidation catalyst component C-potassium permanganate fine powder , degradation control component D-benzoxazole-based fluorescent whitening agent OB and infrared blocking component E-Mg 3 Si 4 o 10 (OH) 2 constitute. The invention can make the bare exposed part of the mulch film have a degradation induction period, and the buried light-shielded part can have long-term sustainable degradability, which is beneficial to the growth and development of peanuts and the environmental protection of soil.

Description

technical field [0001] The invention relates to the field of agricultural applications, in particular to a double-effect-in-one degradable mulch special for peanuts. Background technique [0002] Peanut is an oil crop with high economic value. Since 2008, the planting area of ​​peanut in the west of Jilin Province has continued to expand, with an annual growth rate of 40% to 50%. . [0003] During the growth period of peanuts, it is necessary to maintain sufficient ground temperature and good moisture to meet the growth and development needs of peanuts. The degradation induction period of about 90 days is required for the degradation of plastic film. It can be seen that the control of the degradation time of the mulch film is important. [0004] The resin raw material used in the mulch film is mainly polyethylene. It takes hundreds of years to decompose naturally in the natural environment. The accumulation of residual film in the soil has caused the pollution of farmland ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/08C08L91/00C08L23/06C08K13/02C08K5/098C08K3/24C08K5/353
CPCC08L23/06C08L23/0815C08L2201/06C08L2203/16C08L2205/02C08L2205/025C08L2205/03C08L91/00C08K13/02C08K5/098C08K3/24C08K5/353
Inventor 刘慧涛孙云云王立春侯中华窦金刚刘方明高玉山
Owner JILIN ACAD OF AGRI SCI
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