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Preparation method of biodegradable mulching film

A technology for biodegradation and mulch film, which is applied in the field of preparation of biodegradable mulch film, can solve the problems of high requirements on preparation environment parameters, cumbersome preparation, complicated preparation method steps, etc., and achieves the effect of good stirring effect and long service life.

Inactive Publication Date: 2018-03-06
卢巧巧
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Although the preparation method disclosed in this patent has good biodegradability, the steps of the preparation method are too complicated, and the requirements for the preparation environment parameters are high, and the preparation is cumbersome. Therefore, a biodegradable film was designed The preparation method is necessary

Method used

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  • Preparation method of biodegradable mulching film
  • Preparation method of biodegradable mulching film
  • Preparation method of biodegradable mulching film

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Embodiment Construction

[0055] The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0056] The preparation method of this biodegradable mulch film comprises the following steps:

[0057] a, ingredients: according to the percentage by weight, take the following raw materials: polyvinyl alcohol 75-85%, tapioca starch 2-5%, corn starch 1-4%, cellulase 1-2%, sodium hypochlorite 4-8%, cyclic Oxygenated vegetable oil 4-7%, antioxidant 0.8-1.2%, heat stabilizer 0.6-0.9%, glycerol 1-6%, ultraviolet absorber 0.5-0.8%, formaldehyde 0.03-0.12% and urea 2-5% , the raw materials are put into the batching equipment at the same time, fully stirred evenly, and the mixed masterbatch is obtained; in this embodiment, the following raw materials are weighed according to the weight percentage: polyvinyl alcohol 76%, tapioca starch ...

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Abstract

The invention provides a preparation method of a biodegradable mulching film. Technical problems that a conventional preparation method is too complex in step, high in requirement on preparation environment parameters and tedious in preparation are solved. The preparation method of the biodegradable mulching film comprises the following steps: a, preparing materials; b, pelletizing; c, performingfilm blowing; d, opening holes; e, packaging. The preparation method of the biodegradable mulching film has the advantage of convenience in preparation.

Description

technical field [0001] The invention relates to a preparation method, in particular to a preparation method of a biodegradable mulch film. Background technique [0002] Agricultural mulch film is an important means of production in modern agricultural production. It not only has the functions of moisturizing, water retention, fertilizer retention, pest control, and weed control, but also can maintain soil moisture, improve water use efficiency, improve the growth environment of crops, and increase crop yield and agricultural benefits. , so it is more widely used. However, ordinary mulch residues pollute the soil more and more seriously. It is difficult to recycle after plants are planted, and it cannot be degraded in the soil for hundreds of years. pollution etc. [0003] After searching, for example, Chinese patent literature discloses a method for preparing biodegradable film of modified starch [application number: 201610484009.3; publication number: CN 105968423A]. The...

Claims

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Application Information

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IPC IPC(8): C08L29/04C08L3/02C08L91/00C08L1/28C08K13/02C08K5/07C08K5/21C08K5/053C08K3/30B29D7/01B29B7/18B29B7/08B29B7/22B29B7/80
CPCC08L29/04B29B7/08B29B7/18B29B7/22B29B7/802B29D7/01C08L2201/06C08L2203/16C08L2205/035C08L3/02C08L91/00C08L1/286C08K13/02C08K5/07C08K5/21C08K5/053C08K3/30
Inventor 卢巧巧
Owner 卢巧巧
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