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Biodegradable material, and preparation method and application thereof

A technology for biodegradable materials and raw materials, applied in the field of polymer compound compositions, can solve the problems of inability to maintain transparency, easy breakage, poor mechanical properties, etc., and achieve the effects of low production cost, low environmental pollution, and high strength

Inactive Publication Date: 2013-01-02
ECOTA ENVIRONMENTAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, degradable plastics are materials developed later, and are still in a stage of growth and improvement.
Although the existing degradable plastics are biodegradable and beneficial to environmental protection, most of them cannot maintain good transparency and / or have poor mechanical properties, and the products made, especially film products, are easily damaged

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] First, take the following raw materials by weight: 18 parts by weight of 3-hydroxybutyric acid and 4-hydroxybutyric acid copolymer, 17 parts by weight of polybutylene succinate, 42 parts by weight of polylactic acid, 16 parts by weight of vegetable oil ( Both are castor oil), 6 parts by weight of plasticizer (both are polyethylene glycol), and 1 part by weight of reaction accelerator (both are diphenylmethane diisocyanate). The above-mentioned 3-hydroxybutyric acid and 4-hydroxybutyric acid copolymers and polybutylene succinate are dried before use.

[0053] Then, the fully biodegradable material is prepared according to the following steps: mix all the above-mentioned raw materials evenly (all raw materials can be pre-mixed in a pre-mixer, the initial temperature of mixing is 40°C, and the speed of the pre-mixer is 800~1200 rpm Minutes, mixed for 30 minutes, the speed can be gradually increased during the mixing process) to obtain the mixed material; then the mixed mat...

Embodiment 2

[0057] First, take the following raw materials by weight: 15 parts by weight of 3-hydroxybutyric acid and 4-hydroxybutyric acid copolymer, 15 parts by weight of polybutylene succinate, 50 parts by weight of polylactic acid, 14 parts by weight of vegetable oil ( Both are castor oil), 5 parts by weight of a plasticizer (both are polyethylene glycol), and 1 part by weight of a reaction accelerator (both are γ-aminopropyltriethoxysilane). The above-mentioned 3-hydroxybutyric acid and 4-hydroxybutyric acid copolymers and polybutylene succinate are dried before use.

[0058] Then, the fully biodegradable material is prepared according to the following steps: mix all the above-mentioned raw materials evenly (all raw materials can be pre-mixed in a pre-mixer, the initial temperature of mixing is 40°C, and the speed of the pre-mixer is 800~1200 rpm Minutes, mixed for 30 minutes, the speed can be gradually increased during the mixing process) to obtain the mixed material; then the mixed...

Embodiment 3

[0063] First, take the following raw materials by weight: 19 parts by weight of 3-hydroxybutyric acid and 4-hydroxybutyric acid copolymer, 18 parts by weight of polybutylene succinate, 37 parts by weight of polylactic acid, 17 parts by weight of vegetable oil ( Both are rapeseed oil), 7 parts by weight of a plasticizer (both are glycerin), and 2 parts by weight of a reaction accelerator (both are diphenylmethane diisocyanate). The above-mentioned 3-hydroxybutyric acid and 4-hydroxybutyric acid copolymers and polybutylene succinate are dried before use.

[0064] Then, the fully biodegradable material is prepared according to the following steps: mix all the above-mentioned raw materials evenly (all raw materials can be pre-mixed in a pre-mixer, the initial temperature of mixing is 40°C, and the speed of the pre-mixer is 800~1200 rpm Minutes, mixed for 30 minutes, the speed can be gradually increased during the mixing process) to obtain the mixed material; then the mixed materia...

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Abstract

The invention provides a biodegradable material which is prepared from the following raw materials in percentage by weight: 10-35% of 3-hydroxybutanoic acid-4-hydroxybutanoic acid copolymer, 10-35% of poly(butylene succinate), 0-50% of polylactic acid, 5-25% of vegetable oil, 1-10% of plasticizer and 0.02-5% of reaction promoter. The invention also provides a preparation method of the biodegradable material and application of the biodegradable material in preparation of a biodegradable film. The biodegradable material, which is a degradable biological material, has the advantages of excellent elongation at break, high tensile strength, favorable transparency and excellent comprehensive properties. The preparation method provided by the invention has the advantages of simple technique, strong operability and low production cost, and is easy to control; and the biodegradable material can be prepared into a biodegradable film after being subjected to simple processing, and thus, the invention can easily implement industrial production and has favorable economic benefit and wide application prospects.

Description

[0001] technical field [0002] The invention relates to a polymer compound composition, in particular to a biodegradable material, and a preparation method and application of the biodegradable material. Background technique [0003] Since plastic materials were put into use in the 1930s, they have been widely used in various sectors of the national economy and in various fields of people's lives due to their outstanding characteristics such as light weight, low price, smooth and beautiful appearance, corrosion resistance, and simple production process. Due to the large number of applications of plastics, waste plastic products are increasing day by day, and most of the plastics are stable, so the so-called white pollution occurs, which brings great harm to the environment. In recent years, people have taken positive measures for the management of waste plastics, such as the reduction of plastic packaging materials, repeated use, and recycling. However, for those products t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/04C08L67/02C08L71/08C08K5/053C08K5/10
CPCC08L67/04C08K5/0016C08K5/0033C08K5/103C08L67/02C08L91/00C08L67/00
Inventor 王惠群
Owner ECOTA ENVIRONMENTAL TECH
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