Antibacterial insect-prevention completely biodegradable plastic film and preparation method thereof

A plastic film, fully degradable technology, applied in the field of packaging materials, can solve the problems of difficult processing of PVA plastics, poor mechanical properties of products, serious phase separation, etc., and achieve the effect of good water resistance, good uniformity and low price

Inactive Publication Date: 2015-09-09
TONGLING FOUNDER PLASTICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, PVA material has poor compatibility with the base material, and the phase separation is serious. This characteristic makes PVA plastic difficult to process, and the mechanical properties of the product are relatively poor.

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] An antibacterial and insect-proof fully degradable plastic film is prepared from the following component raw materials in weight (kg):

[0018] Tapioca starch 35, garlic powder 25, attapulgite 4, konjac gum 4, pectin 4, polyvinyl alcohol 15, sodium diacetate 0.8, glycerin 15, glyceryl citrate 3, silane coupling agent KH-550 1.5, horse to anhydride 8.

[0019] The preparation method of the antibacterial and insect-proof fully degradable plastic film comprises the following steps:

[0020] (1) Mix konjac gum and pectin with water at a solid-to-liquid weight ratio of 1:40, and stir at 90°C for 2 hours to obtain a mixed solution;

[0021] (2) Add tapioca starch, garlic powder and attapulgite to the mixture in (1), stir at 80°C for 1 hour to obtain a mixed slurry;

[0022] (3) Put the mixed slurry in (2) into the reaction kettle, adjust the pH to 8.5-9.0 with 5% NaOH solution, then add maleic anhydrid...

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Abstract

The invention discloses an antibacterial insect-prevention completely biodegradable plastic film which is prepared from the following raw materials in parts by weight: 30-40 parts of tapioca starch, 20-30 parts of garlic powder, 3-5 parts of attapulgite, 3-5 parts of konjac glucomannan, 3-5 parts of pectin, 10-20 parts of polyving alcohol, 0.5-1 part of sodium diacetate, 10-20 parts of glycerinum, 2-4 parts of citric acid glyceride, 1-2 parts of a silane coupling agent KH and 5-10 parts of maleic anhydride. The antibacterial insect-prevention completely biodegradable plastic film disclosed by the invention is good in uniformity, high in tensile property, relatively good in waterproof property, relatively good in antibacterial and insect prevention effect, beneficial for keeping cleanliness and sanitation of use environments, wide in raw material resource, low in price, environmentally friendly, good in degradation property and high in practicability.

Description

technical field [0001] The invention relates to the field of packaging materials, in particular to an antibacterial and insect-proof fully degradable plastic film and a preparation method thereof. Background technique [0002] Plastics are widely used in various fields of economy and life, such as shopping bags, garbage bags, plastic cups, disposable lunch boxes in daily life, and agricultural film in production. However, since plastic is difficult to degrade, it is the source of "white pollution", which has caused a negative impact on the natural environment that cannot be ignored. With the seriousness of pollution and the improvement of environmental protection awareness, biodegradable plastics as a substitute have received widespread attention and become one of the effective methods to solve the environmental pollution caused by plastic waste. [0003] PVA is a polyhydroxy polymer obtained by hydrolysis of polyvinyl acetate, which can be completely decomposed within 6 mo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L3/02C08L29/04C08L5/00C08L5/06C08K13/02C08K3/34C08K5/544C08K5/11C08K5/053C08K5/1539
Inventor 陈可夏陈可亮潮建平
Owner TONGLING FOUNDER PLASTICS TECH
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