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Degradable multifunctional agricultural composite mulching film and preparation method thereof

A multi-functional, mulching technology, applied in the agricultural field, can solve the problems of time-consuming and laborious recycling, poor air permeability, low absorption rate, etc., and achieve the effect of improving the degradability

Active Publication Date: 2017-05-31
辽宁丰收塑业有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is more time-consuming and inefficient
Moreover, after covering the plastic film, it also brings inconvenience to the spraying of antibacterial agents and insecticides, and due to the coverage of the plastic film, the absorption rate is low
[0004] On the other hand, most of the existing mulches are hard-to-degrade plastic mulches, which are not environmentally friendly, and the recycling is time-consuming and laborious, which is not convenient enough
Moreover, the existing plastic mulches generally have poor water retention and air permeability

Method used

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  • Degradable multifunctional agricultural composite mulching film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] A degradable multifunctional agricultural compound mulching film, the raw materials of which include the following components:

[0054] Polybutylene succinate (polymerization monomer is dimethyl succinate, butanediol and hexanediol; wherein the molar weight of hexanediol is 5% of butanediol) 40wt%,

[0055] Polypropylene 45wt%,

[0056] Polyvinyl alcohol 5wt%,

[0057] Styrene-butadiene copolymer 1wt%,

[0058] Doped nano-titanium dioxide (doped with a total doping amount of 2wt% N, P, K) 1wt%,

[0059] Silane coupling agent (KH550) 0.5%,

[0060] Antibacterial oxygen-enhancing particles 6wt%,

[0061] Lubricant (calcium stearate) 1.5 wt%.

[0062] Wherein, the antibacterial and oxygen-increasing particles sequentially include an immediate-release layer, a sustained-release layer and a coating layer from inside to outside.

[0063] The quick-release layer is composed of the following materials: 40wt% sodium percarbonate, 10wt% natural antibacterial plant extract (...

Embodiment 2

[0068] A degradable multifunctional agricultural compound mulching film, the raw materials of which include the following components:

[0069] Polybutylene succinate (polymerization monomer is dimethyl succinate, butanediol and hexanediol; wherein the molar weight of hexanediol is 1% of butanediol) 30wt%,

[0070] Polypropylene 50wt%,

[0071] Polyvinyl alcohol 7wt%,

[0072] Styrene-butadiene copolymer 1.5wt%,

[0073] Doped nano-titanium dioxide (doped with a total doping amount of 1wt% Fe, Ca) 1.5wt%,

[0074] Silane coupling agent (KH560) 0.75%,

[0075] Antibacterial and oxygen-enhancing particles 8wt%,

[0076] Lubricants (oxidized polyethylene wax, paraffin) 1.25wt%.

[0077] Wherein, the antibacterial and oxygen-increasing particles sequentially include an immediate-release layer, a sustained-release layer and a coating layer from inside to outside.

[0078] The quick-release layer is composed of the following materials: calcium peroxide 35wt%, natural antibacter...

Embodiment 3

[0083] A degradable multifunctional agricultural compound mulching film, the raw materials of which include the following components:

[0084] Polybutylene succinate (polymerization monomer is dimethyl succinate, butanediol and hexanediol; wherein the molar weight of hexanediol is 10% of butanediol) 50wt%,

[0085] Polypropylene 40wt%,

[0086] Polyvinyl alcohol 3wt%,

[0087] Styrene-butadiene copolymer 0.5wt%,

[0088] Doped nano titanium dioxide (doped with a total doping amount of 3wt% N, Fe, Ca) 0.5wt%,

[0089] Silane coupling agent (KH570) 0.25%,

[0090] Antibacterial oxygen-enhancing particles 4wt%,

[0091] Lubricant (glyceryl stearate) 1.75 wt%.

[0092] Wherein, the antibacterial and oxygen-increasing particles sequentially include an immediate-release layer, a sustained-release layer and a coating layer from inside to outside.

[0093] The quick-release layer is composed of the following materials: 45wt% of carbamide peroxide, 10wt% of natural antibacterial ...

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Abstract

The invention relates to the field of agriculture and discloses a degradable multifunctional agricultural composite mulching film and a preparation method thereof. The mulching film is prepared from the following components: 30-50wt% of poly(butylene succinate), 35-55wt% of polypropylene, 3-7wt% of polyvinyl alcohol, 0.5-1.5wt% of a thermal degradation promoter, 0.5-1.5wt% of a photocatalytic degradation promoter, 0.25-0.75wt% of a silane coupling agent, 4-8wt% of antibacterial aerobic granules and 0.5-2.5wt% of a lubricating agent. According to the mulching film disclosed by the invention, poly(butylene succinate) with high natural degradability serves as one of the main raw materials, and the mulching film contains the thermal degradation promoter and the photocatalytic degradation promoter, so that the degradability of the mulching film is further improved. In addition, according to the antibacterial aerobic granules, the mulching film has the water-retaining, breathable, aerobic and antibacterial functions.

Description

technical field [0001] The invention relates to the field of agriculture, in particular to a degradable multifunctional agricultural composite mulch film and a preparation method thereof. Background technique [0002] When the plant is in the seedling stage, it is in the stage of rapid growth, especially the growth of the roots is very fast. Rapid growth requires the roots to absorb a large amount of water and nutrients, and the absorption of water and nutrients mainly relies on the roots to perform a large amount of respiration to provide energy. Therefore, in order to enhance the respiration of the roots of the seedlings, it is necessary to loosen the soil frequently, keep the soil fluffy, and increase the oxygen content. But at the same time, because the seedlings are relatively fragile, they usually need to be covered with plastic film to keep the soil warm and water-retaining. In this way, artificial loosening of the soil cannot be conveniently carried out after the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L23/12C08L29/04C08L25/10C08L39/06C08L5/16C08K13/06C08K9/04C08K3/22C08K3/34C08K5/00
CPCC08J5/18C08J2367/02C08J2423/12C08K2201/011C08L67/02C08L2201/06C08L2203/16C08L2205/025C08L2205/035C08L23/12C08L29/04C08L25/10C08L39/06C08L5/16C08K13/06C08K9/04C08K2003/2241C08K3/346C08K2003/2206C08K5/0058
Inventor 彭万鹏
Owner 辽宁丰收塑业有限责任公司
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