Three-layer co-extrusion biodegradable mulch film and preparation method thereof

A three-layer co-extrusion and biodegradation technology, which is applied in botany equipment and methods, chemical instruments and methods, plant protection, etc., can solve the problems of uncontrollable degradation time, poor moisture retention, and poor mechanical properties of biodegradable materials. , to achieve good longitudinal/transverse mechanical properties, excellent oxygen barrier, and excellent barrier performance

Active Publication Date: 2016-10-12
SHENZHEN HONGCAI NEW MATERIAL TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, biodegradable materials have problems such as poor mechanical properties, poor water and moisture retention, and uncontrollable degradation time.

Method used

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  • Three-layer co-extrusion biodegradable mulch film and preparation method thereof

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Embodiment Construction

[0044] In order to further illustrate the technical means adopted by the present invention and its effects, the following describes in detail in conjunction with preferred embodiments of the present invention and accompanying drawings.

[0045] see figure 1 , the preparation method of the three-layer co-extruded biodegradable film provided by the present invention, the inner layer material, the middle layer material and the outer layer material are processed into a film by a three-layer co-extrusion blown film process, and the inner layer material, the middle layer material and the outer layer The materials correspond to the inner layer, middle layer, and outer layer of the three-layer co-extrusion biodegradable plastic film;

[0046] The inner layer material includes the following raw material components and mass ratio: 40-60 parts of PBAT resin, 20-30 parts of non-grain starch, 6-10 parts of non-grain starch modifier, 1-3 parts of herbicide, anti-aging 1-3 doses;

[0047] ...

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Abstract

The invention provides a three-layer co-extrusion biodegradable mulch film and a preparation method thereof. According to the preparation method of the three-layer co-extrusion biodegradable mulch film, an inner-layer material, a middle-layer material and an outer-layer material are processed into thin membranes by a three-layer co-extrusion membrane blowing technology, and through a material compounding modification technology and a three-layer co-extrusion technology, the biodegradable mulch film has excellent barrier property and good longitudinal / transverse mechanical property.

Description

technical field [0001] The invention relates to the field of agricultural films, in particular to a preparation method of a three-layer co-extruded biodegradable mulch film and a three-layer co-extruded biodegradable mulch film. Background technique [0002] Plastic agricultural mulch has the effect of retaining moisture and increasing temperature on the soil, and then brings increased production and harvest to agriculture. It has been hailed as the third revolution in agriculture after the collection of chemical fertilizers and seeds in my country. my country is the country that uses the most polyethylene mulch every year. It is mainly used in crops such as tobacco, cotton, corn, and vegetables. While polyethylene mulch brings huge benefits to agriculture, it also brings serious "white pollution" to the ecological environment. According to incomplete statistics, the residual amount of polyethylene mulch in some areas of Xinjiang has reached 10-25kg, and it continues to incre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/08B32B27/18A01G13/02C08L67/02C08L3/02C08L69/00C08L33/26C08L51/00C08L67/04
CPCA01G13/0275B32B27/08B32B27/18B32B2250/03B32B2250/24B32B2307/7163B32B2307/7244B32B2307/7246B32B2410/00C08J5/18C08J2367/02C08J2369/00C08J2403/02C08J2433/26C08J2451/00C08J2467/04C08L67/02C08L69/00C08L2201/06C08L2201/14C08L2203/16C08L2205/02C08L2205/03C08L2205/035C08L3/02C08L33/26C08L51/00C08L67/04
Inventor 李积迁陈永弟杨宏陈晓江李建平
Owner SHENZHEN HONGCAI NEW MATERIAL TECH
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