Completely-biodegradable copolymerized extruded sheet raw material and production process of product

A technology of biodegradation and raw materials, applied in the field of polymer materials, can solve the problems of high temperature and low temperature resistance, secondary pollution of products, and poor degradation effect of biodegradable materials, etc., to achieve good performance, low cost, and degradability strong effect

Inactive Publication Date: 2018-07-27
谢子栋
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the degradation effect of biodegradable materials is not very good, and the degraded products will cause secondary pollution. In addition, the existing biodegradable materia

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A completely biodegradable copolymer extruded sheet raw material of this embodiment includes the following raw materials in parts by weight:

[0029] Wood polylactic acid (PLA) 13 parts, polybutylene terephthalic acid / adipate (PBAT) 14 parts, polybutylene succinate (PBS) 13 parts, vegetable starch 27 parts, straw fiber 8 parts of prime, 14 parts of filler, 0.5 part of plasticizer, 0.2 part of antioxidant.

[0030] The filler in this example is a mixture of heavy calcium carbonate and talcum powder in a weight ratio of 11:4.

[0031] A preparation method of a fully biodegradable copolymerized extruded sheet material and product of this embodiment comprises the following steps:

[0032] Step 1, weighing each component raw material as required;

[0033] Step 2, subjecting vegetable starch to stearic acid for depigmentation reaction, solving its viscosity and hydrophilicity, and modifying it into thermoplastic starch;

[0034] Step 3, the modified thermoplastic starch ob...

Embodiment 2

[0041] A completely biodegradable copolymer extruded sheet raw material of this embodiment includes the following raw materials in parts by weight:

[0042] Wood polylactic acid (PLA) 17 parts, polybutylene terephthalic acid / adipate (PBAT) 16 parts, polybutylene succinate (PBS) 17 parts, vegetable starch 33 parts, straw fiber 12 parts of prime, 16 parts of filler, 2 parts of plasticizer, 1 part of antioxidant.

[0043] The filler in this example is a mixture of heavy calcium carbonate and talcum powder in a weight ratio of 11:4.

[0044]A preparation method of a fully biodegradable copolymerized extruded sheet material and product of this embodiment comprises the following steps:

[0045] Step 1, weighing each component raw material as required;

[0046] Step 2, subjecting vegetable starch to stearic acid for depigmentation reaction, solving its viscosity and hydrophilicity, and modifying it into thermoplastic starch;

[0047] Step 3, the modified thermoplastic starch obtai...

Embodiment 3

[0054] A completely biodegradable copolymer extruded sheet raw material of this embodiment includes the following raw materials in parts by weight:

[0055] 15 parts of polylactic acid (PLA), 15 parts of polybutylene terephthalic acid / adipate (PBAT), 15 parts of polybutylene succinate (PBS), 30 parts of vegetable starch, straw cellulose 10 parts, 15 parts of filler, 1.25 parts of plasticizer, 0.6 part of antioxidant.

[0056] The filler in this example is a mixture of heavy calcium carbonate and talcum powder in a weight ratio of 11:4.

[0057] A preparation method of a fully biodegradable copolymerized extruded sheet material and product of this embodiment comprises the following steps:

[0058] Step 1, weighing each component raw material as required;

[0059] Step 2, subjecting vegetable starch to stearic acid for depigmentation reaction, solving its viscosity and hydrophilicity, and modifying it into thermoplastic starch;

[0060] Step 3, the modified thermoplastic star...

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Abstract

The invention discloses a completely-biodegradable copolymerized extruded sheet raw material. The material comprises the following raw materials in parts by weight: 13-17 parts of polylactic acid (PLA), 14-16 parts of poly(butylene adipate terephthalate) (PBAT), 13-17 parts of polybutylene succinate (PBS), 27-33 parts of plant starch, 8-12 parts of straw cellulose, 14-16 parts of a filler, 0.5-2 parts of a plasticizer and 0.2-1 part of an antioxidant. According to the completely-biodegradable copolymerized extruded sheet raw material provided by the invention, the material has a good degradation effect, simultaneously the product after degradation does not cause secondary pollution, and moreover, the biodegradable material provided by the invention can resist to high temperature and low temperature.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a production process of completely biodegradable copolymerized extruded sheet raw materials and products. Background technique [0002] At present, in the domestic and foreign markets, the disposable packaging series closely related to the national economy and the people's livelihood are mainly divided into three categories: plastic-based materials (PP, PS, etc.), starch-based materials (PP+starch, etc.), fully biodegradable materials (PLA, PBS, etc.) , bagasse, paper products, etc.); plastic-based material products: after completing its use function, this kind of material products cannot be degraded as domestic waste for hundreds of years. It is a non-degradable substance, leaving new Pollution source - "white pollution", which causes immeasurable damage to the human living environment, plastic-based material products will be eliminated in the field of disposable packa...

Claims

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Application Information

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IPC IPC(8): C08L3/06C08L67/04C08L67/02C08L97/02C08K3/34C08K3/26
CPCC08K2201/018C08L3/06C08L2201/06C08L2201/08C08L2205/025C08L2205/035C08L67/04C08L67/02C08L97/02C08K3/34C08K3/26
Inventor 谢子栋
Owner 谢子栋
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