Biodegradable plastic preparation method

A technology for biodegradable plastics and raw materials, applied in the field of biodegradable plastics preparation, can solve problems such as affecting the growth of crops, death, endangering animal safety, etc., and achieve the effects of facilitating large-scale production, simple process, and avoiding pollution

Inactive Publication Date: 2014-03-26
NANNING RIJIAN PLASTIC PACKAGING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The harm it causes is as follows: it destroys the city appearance and environment, and abandoned plastic products can be seen everywhere, which is an important reason for the dirty, chaotic and poor environment. It also destroys the landscape and affects the image of the city; it endangers human health. It will become a breeding ground for the survival and reproduction of mosquitoes, flies and bacteria, endangering human health; affecting the growth of crops, the plastic film used in farmland will be broken and left in the field after aging, and will not decompose and rot, destroying the land structure and hindering plants from absorbing water and root systems Growth, affecting crop harvest; endangering animal safety, waste plastic fragments scattered in rivers, lakes, seas and fields are eaten by animals and small organisms, which will cause illness and death

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Mix 30g gluten and 60g starch, add 27g plasticizer, described plasticizer acetyl trioctyl citrate, glycerin mixture, wherein acetyl trioctyl citrate, glycerin mass ratio is 3: 1, mix and stir After 20 minutes, place it in a mold, and heat press for 5 minutes under the conditions of 100°C and 30MPa. Biodegradable plastics can be produced.

Embodiment 2

[0021] Mix 30g gluten and 70g starch, add 40g plasticizer, described plasticizer acetyl trioctyl citrate, glycerin mixture, wherein acetyl trioctyl citrate, glycerin mass ratio is 4: 1, mix and stir After 30 minutes, place it in a mold, and heat press for 7 minutes under the conditions of 150°C and 40MPa. Biodegradable plastics can be produced.

Embodiment 3

[0023] Mix 30g gluten and 80g starch, add 55g plasticizer, described plasticizer acetyl trioctyl citrate, glycerin mixture, wherein acetyl trioctyl citrate, glycerin mass ratio is 5: 1, mix and stir 35 minutes, put it in a mold, and heat press for 10 minutes under the conditions of 170°C and 50MPa. Biodegradable plastics can be produced.

[0024] The following data are the properties of the biodegradable plastic prepared in Example 3. (See Table 1)

[0025] Table 1 Properties of biodegradable plastics

[0026] Complete degradation time (days)

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PUM

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Abstract

The invention relates to the field of plastics and particularly relates to a biodegradable plastic preparation method. According to the biodegradable plastic preparation method disclosed by the invention, vital gluten and starch are blended, and a plasticizer is added to conduct hot press molding to prepare the biodegradable plastic. The materials used are biodegradable materials, and the protein plastic has excellent biodegradability, and belongs to environment-friendly materials, so that environmental pollution is avoided.

Description

technical field [0001] The invention relates to the field of plastics, in particular to a preparation method of biodegradable plastics. Background technique [0002] White pollution refers to discarded plastics, such as the most common plastic bags and foam boards in our daily life, which are not easy to degrade and take hundreds of years to decompose. The harm it causes is as follows: it destroys the city appearance and environment, and abandoned plastic products can be seen everywhere, which is an important reason for the dirty, chaotic and poor environment. It also destroys the landscape and affects the image of the city; it endangers human health. It will become a breeding ground for the survival and reproduction of mosquitoes, flies and bacteria, endangering human health; affecting the growth of crops, the plastic film used in farmland will be broken and left in the field after aging, and will not decompose and rot, destroying the land structure and hindering plants fro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L3/02C08L89/00C08K5/11C08K5/053B29C43/58
Inventor 刘天佑
Owner NANNING RIJIAN PLASTIC PACKAGING
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