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Production process of biodegradable agricultural mulching film

Inactive Publication Date: 2022-01-21
重庆市联发塑料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a production process of biodegradable agricultural mulch film to solve the problem of difficult land planting caused by the non-degradable agricultural mulch film in the prior art

Method used

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  • Production process of biodegradable agricultural mulching film
  • Production process of biodegradable agricultural mulching film

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Embodiment Construction

[0027] In order to make the technical means, creative features, goals and functions achieved by the present invention clearer and easier to understand, the present invention will be further elaborated below in conjunction with the accompanying drawings and specific embodiments:

[0028] The present invention first proposes a biodegradable agricultural mulch film, comprising:

[0029] Dry ingredients include: 40g terephthalic acid, 60g adipic acid;

[0030] The first solution includes: 160 g of 1,4-butanediol, 4 g of human glycidyl methacrylate; and

[0031] The second solution includes: 71 g of tetrabutyl titanate.

[0032] The present invention also proposes a biodegradable agricultural film production process, comprising the following steps:

[0033] S1. Mix the dry material with the first solution to obtain a mixture. The mass ratio of the dry material to the first solution is 25:46; the dry material includes: terephthalic acid and adipic acid, and the mass ratio of terep...

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Abstract

The invention provides a production process of a biodegradable agricultural mulching film. The production process comprises the following steps: S1, mixing dry material with a first solution in a mass ratio of 25: 46 to obtain a mixture, wherein the dry material comprises terephthalic acid and adipic acid, the mass ratio of terephthalic acid to adipic acid is 2: 3, and the first solution is prepared from 1, 4-butanediol and human glycidyl methacrylate; S2, heating a second solution to 73 DEG C, and mixing the mixture and the second solution in a reactor; S3, reacting the mixture and the second solution in a reactor to obtain an oligomer; S4, in an environment of 180 DEG C, uniformly mixing the oligomer with an HDI chain extender, and granulating to obtain copolyester; and S5, uniformly mixing an antioxidant 168, silicon dioxide, UV-531 and the copolyester, and blowing out to obtain the biodegradable agricultural mulching film. The biodegradable agricultural mulching film production process solves the problem that in the prior art, due to the fact that an agricultural mulching film cannot be degraded, land planting is difficult.

Description

technical field [0001] The invention relates to a film, in particular to a production process of a biodegradable agricultural mulch film. Background technique [0002] Agricultural mulch is the general term for plastic films used in agricultural production. It plays a very important role in moisturizing and heat preservation during the sowing period. Especially in the process of cotton planting, a lot of agricultural mulch remains in the soil, resulting in the accumulation of many bad agricultural mulches all year round. Accumulation in the soil, and the agricultural mulch film cannot be degraded in the soil, resulting in changes in soil properties, hindering the growth of plants in the soil, and reducing crop yields. Accumulated over the years, it will cause the soil to be unable to grow crops, resulting in environmental pollution, which is not conducive to environmental protection. Contents of the invention [0003] The present invention provides a production process of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G63/52C08G63/78C08J5/18C08L67/06
CPCC08J5/18C08G63/52C08G63/785C08J2367/06Y02A40/28
Inventor 周久寿李骏
Owner 重庆市联发塑料科技股份有限公司