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Tear resistant full degradable film and preparation method thereof

A fully degradable and tear-resistant technology, applied in the field of film materials, can solve the problems of limiting the application of PVA-based plastic films, poor water resistance and mechanical properties, and achieve the effects of low price, good strength and water resistance, and increased strength

Inactive Publication Date: 2015-09-09
安徽颍美科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the poor water resistance and mechanical properties of PVA limit the application of PVA-based plastic films.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] Non-limiting examples of the present invention are as follows:

[0017] A tear-resistant fully degradable film prepared from the following component raw materials in weight (kg):

[0018] Ramie fiber 6, palm fiber 4, corn starch 35, soybean dregs 12, polyvinyl alcohol 25, glycerin 20, lauric monoglyceride 4, epoxy soybean oil 4, chlorinated paraffin 1.5, polyethylene glycol 3, hydroxyethyl Base cellulose 1.5, tetraethyl orthosilicate 8.

[0019] The preparation method of the tear-resistant fully degradable film comprises the following steps:

[0020] (1) Crush ramie fiber and palm fiber to 400 mesh, mix with cornstarch and soybean dregs, then add 4% acetic acid solution at a solid-to-liquid weight ratio of 1:2, stir at 80°C for 4 hours, and adjust the pH to neutral Filter, dry and grind to 400 mesh to obtain mixed powder;

[0021] (2) Add the mixed powder obtained in (1) and polyethylene glycol into the mixed solution of an appropriate amount of ethanol / water / ammonia...

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PUM

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Abstract

The invention discloses a tear resistant full degradable film characterized by comprising the following raw material by weight: 4-8 parts of ramie fiber, 3-5 parts of palm fiber, 30-40 parts of corn starch, 10-15 parts of bean dregs, 20-30 parts of polyvinyl alcohol, 15-25 parts of glycerin, 3-5 parts of glycerol monolaurate, 3-5 parts of epoxidized soybean oil, 2-4 parts of polyethylene glycol (peg), 1-2 parts of chlorinated paraffin, 1-2 parts of hydroxyethyl cellulose and 4-10 parts of ethyl orthosilicate. The tear resistant full degradable film has good strengthen and resistance to water, good tear resistance and good degradation performance, and is low in price, good in use performance, green and environmentally friendly.

Description

technical field [0001] The invention relates to the field of film materials, in particular to a tear-resistant fully degradable film and a preparation method thereof. Background technique [0002] In recent years, the call for improving the ecological environment has become increasingly louder. As a large packaging country, my country uses a huge amount of plastic packaging products. Waste plastics are difficult to degrade and remain in the environment to form "white pollution", which seriously threatens the living environment of human beings. Therefore, it has become an inevitable trend to develop environmentally friendly, non-toxic, non-polluting fully biodegradable films to replace traditional packaging films. [0003] PVA is a kind of high molecular polymer with a wide range of uses. The molecule contains a large number of hydroxyl groups. There is a strong attraction between adjacent molecules, and it has good barrier properties, strong adhesion, flexibility, gloss and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L3/02C08L29/04C08L97/02C08L71/02C08K13/02C08K5/053C08K5/103C08K5/1515C08K3/36
Inventor 刘全新姚利刚姚静
Owner 安徽颍美科技股份有限公司
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