Fully biodegradable insecticide tolerance mulching film composition and preparation method thereof

A composition and all-biological technology, applied in botany equipment and methods, plant protection, plant protection cover, etc., can solve the problems of phase separation of composite materials and large differences in solubility parameters, etc., to achieve enhanced drug resistance, opening Good, efficient fusion effect

Active Publication Date: 2018-04-24
山东天野生物降解新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, PBAT can be formed through the same processing technology as PLA, so the use of PBAT to toughen and modify PLA has become the choice of many researchers, but studies have shown that the solubility parameters of PLA and PBAT are very different, and the two can be blended directly prone to phase separation of composites

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0031] Below in conjunction with embodiment, the present invention is described further, but does not limit the present invention thereby.

[0032] The grade of polylactic acid in the examples is Revode110, Zhejiang Hisun Biomaterials Co., Ltd., with a density of 1.25±0.05 and a melting point of 140-155.

[0033] The grade of PBAT in the examples is grade TH801, Dongguan Renju Biodegradable Plastic Co., Ltd., melting point 110-120°C, density 1.2-1.28 g / cm 3 .

[0034] The antioxidants are 2,6-di-tert-butyl-4-methylphenol and 2,4,6-tris[2-(2-hydroxy-3-tert-butyl-5-methylphenyl)-4-methyl Base-6-tert-butylphenol]-cyanurate compound, the weight ratio is 1:1.

[0035] The anti-ultraviolet auxiliary agent is a compound of light stabilizer UV-3853 S and light stabilizer Tinuvin 119, and the weight ratio is 1: 0.3; the drug resistance increasing agent is liquid paraffin.

[0036] Table 1 Formulas of Examples 1-6 of the present invention, kg

[0037] .

[0038] Table 2 Formulas ...

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Abstract

Fully biodegradable insecticide tolerance mulching film composition is prepared from the following components in parts by weight: 100 parts of polylactic acid, 50-70 parts of PBAT poly (butyleneadipate-co-terephthalate), 5-10 parts of triethyl acetyl citrate, 5-10 parts of pentaerythritol, 0.1-0.5 parts of ammonium persulfate, 0.1-1 part of an antioxidant, 0.5-3 parts of an anti-ultraviolet aid, 2-10 parts of a chemical resistance enhancer and 0.5-2 parts of a nucleating agent. Under the initiation action of ammonium persulfate, polylactic acid and PBAT are subjected to cross-linking reactionduring extrusion, and the produced composition has the advantages of increased molecular weight, improved strength, slow degradation property and enhanced insecticide resistance.

Description

technical field [0001] The invention belongs to the technical field of ground covering films, and specifically relates to a fully biodegradable drug-resistant film composition and a preparation method thereof. Background technique [0002] The use of agricultural ground covering films (hereinafter referred to as mulch films) in a low temperature environment can improve the survival rate of crops, and play a role in accelerating the ripening and increasing production of crops, so it is widely used. The existing technology usually uses polyethylene blow molding to prepare mulch, and polyethylene raw materials are derived from non-renewable resources such as petrochemical industry. With the increasing shortage of petrochemical resources, the long-term supply of mulch raw materials has brought crisis and the cost is getting higher and higher. . Moreover, polyethylene mulch is non-degradable or takes a long time to slowly degrade after use, and usually it will bring white pollut...

Claims

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Application Information

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IPC IPC(8): C08L67/04C08L67/02C08L91/06C08K5/00C08K5/11C08K5/053C08K5/13C08K5/3492C08J3/24A01G13/02
CPCA01G13/0275C08J3/246C08J5/18C08J2367/04C08J2467/02C08K5/053
Inventor 付宇经宣兆志阎宝林李开磊张鑫科
Owner 山东天野生物降解新材料科技有限公司
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