A kind of production method of starchy biomass degradable plastic tableware

A technology of biodegradable plastics and production methods, applied in the field of production of starch-containing biomass degradable plastic tableware, can solve the problems of biodegradable plastics that are difficult to degrade, white pollution damages the environment, and cannot be degraded, so as to improve melt flow , Improve interface compatibility issues, improve the effect of willfulness

Active Publication Date: 2016-06-08
安徽鑫科生物环保有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002]Plastic is a common and durable material, but the pollution caused by plastic is also terrible, white pollution has caused irreversible damage to the environment, so now biodegradable plastic Products have always been the hot spot of current research and development. Various new products emerge in endlessly. The earliest is photosensitive degradable materials. The latest research and development hotspot is starch-based degradable plastics, that is, biodegradable plastics. Plastics are difficult to degrade in some special areas such as drought or lack of soil, and photodegradable plastics cannot be degraded when buried in soil, and the degradable polymer material used to make degradable plastics is polycaprolactone (PCL), Polylactic acid (PLA) and polybutylene succinate (PBS) are relatively expensive. How to use existing materials, especially waste materials, to produce a degradable plastic can greatly reduce costs and reduce environmental pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A production method of starch-containing biodegradable plastic tableware, comprising the following steps:

[0025] (1) First, mix 70kg of refined starch and 0.15kg of aluminum hydroxide and stir at 130°C at high temperature. During the stirring process, add 0.3kg of methyltriethoxysilane, and then add 15kg of polypropylene PP045, 0.35 kg plasticizer EVA, 0.3kg processing aid LLDPE and 7kg white carbon black, stir at a high speed until small spherical pellets appear, stop the machine and discharge, and extrude the sheet at 180°C;

[0026] (2) Lunch box forming, divided into positive pressure forming and negative pressure forming:

[0027] Positive pressure: the sheet enters the machine, the temperature of the electric furnace is adjusted to 180°C, it is converted by heat, and the finished product is produced after being loosened by the upper die and punched for 12 seconds;

[0028] Negative pressure: The sheet enters the machine’s electric furnace and adjusts it to 300°...

Embodiment 2

[0032] A production method of starch-containing biodegradable plastic tableware, comprising the following steps:

[0033] (1) First, mix 70kg of refined starch and 0.15kg of aluminum hydroxide and stir at 130°C at high temperature. During the stirring process, add 0.3kg of methyltriethoxysilane, and then add 15kg of polypropylene PP045, 0.35 kg plasticizer EVA, 0.3kg processing aid LLDPE and 7kg white carbon black, stir at high speed until small spherical pellets appear, stop the machine and discharge, and extrude the sheet at 180°C;

[0034] (2) Lunch box forming, divided into positive pressure forming and negative pressure forming:

[0035] Positive pressure: the sheet enters the machine, the temperature of the electric furnace is adjusted to 180°C, it is converted by heat, and the finished product is produced after being loosened by the upper die and punched for 12 seconds;

[0036] Negative pressure: The sheet enters the electric furnace of the machine and is adjusted to ...

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PUM

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Abstract

The invention provides a production method for degrading plastic tableware by biomass containing starch. The starch after thining serves as main raw materials, triphenyl phosphate and silane coupling agent methyl triethoxy silane are added to the starch to be stirred at a high speed, then polypropylene PP045, ethylene-vinyl acetate copolymer (EVA), linear low density polyethylene (LLDPE) and white carbon black are added and stirred at a high speed until small ball granular materials appear, a machine is stopped and the materials are discharged, sheets are extruded, and finally products are produced. Plastics produced by the method have two characteristics of photosensitive degradation and biodegradation, so environment pollution caused by abandoned plastics is reduced; and the used main raw materials are mainly the starch, so production cost is reduced, and the method is suitable for large-scale production and popularization.

Description

technical field [0001] The invention relates to a production method of starch-containing biodegradable plastic tableware. Background technique [0002] Plastic is a common and durable material, but the pollution caused by plastic is also terrible. White pollution has caused irreversible damage to the environment. Therefore, degradable plastic products have always been a hot spot in research and development. Various new products emerge in endlessly. The earliest It is a photosensitive degradable material. The latest research and development hotspot is starch-based degradable plastics, that is, biodegradable plastics. However, today's degradable plastics may not be completely degradable. Degradable plastics cannot be degraded when they are buried in the soil, and the degradable polymer materials used to make degradable plastics are polycaprolactone (PCL), polylactic acid (PLA), polybutylene succinate ( PBS), the price is relatively expensive, how to use existing materials, es...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L3/02C08L23/12C08L23/08C08K9/06C08K3/22C08K3/36B29C51/10
Inventor 周建设
Owner 安徽鑫科生物环保有限公司
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