Low-cost biology base full degradation thin film and preparation method thereof

A bio-based, fully degradable technology, applied in the field of fully biodegradable materials, can solve the problems of high cost of fully biodegradable films, difficult to popularize and apply, and achieve the effect of promoting promotion and application, low cost, and solving the problem of "white pollution".

Active Publication Date: 2018-01-09
JIANGSU JINJU ALLOY MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims at the problem that the existing fully biodegradable film has high cost and is difficult to popularize and apply, and provides a low-cost bio-based fully degradable film and a preparation method thereof

Method used

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  • Low-cost biology base full degradation thin film and preparation method thereof
  • Low-cost biology base full degradation thin film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The low-cost bio-based fully degradable film material consists of the following raw materials in parts by mass: 15 parts of polyglycolide, 25 parts of corn starch, 55 parts of polybutylene adipate / terephthalate, 1.25 parts of glycerol, 2.5 parts of ethylene glycol, 5 parts of ethylene butyl acrylate grafted glycidyl methacrylate, 0.5 parts of citric acid, 0.75 parts of acetyl tributyl citrate, 0.3 parts of maleic anhydride, 0.2 parts of antioxidant 164, 2- 0.2 parts of (2'-hydroxy-5'-methylphenyl)benzotriazole.

[0028] Preparation of low-cost bio-based fully degradable films:

[0029] First, mix polyglycolide, maleic anhydride and acetyl tributyl citrate evenly, then add them to a parallel co-rotating twin-screw extruder for blending and extrusion, and set the temperature in the 1-7 zone of the extruder to 160°C in sequence. 180°C, 230°C, 230°C, 230°C, 230°C, 230°C, head temperature is 220°C, to prepare plasticized and capped PGA modified material;

[0030] Then corn...

Embodiment 2

[0036] The low-cost bio-based fully degradable film material is composed of the following raw materials in parts by mass: 20 parts of polyglycolide, 30 parts of corn starch, 45 parts of polyadipate / butylene terephthalate, 4 parts of formamide, urea 2 parts, 5 parts of ethylene butyl acrylate grafted glycidyl methacrylate, 0.6 parts of citric acid, 1 part of acetyl tributyl citrate, 0.4 parts of maleic anhydride, 1640.2 parts of antioxidant, 2-(2'- 0.2 parts of hydroxy-5'-methylphenyl)benzotriazole.

[0037] Preparation of low-cost bio-based fully degradable films:

[0038] First, mix polyglycolide, maleic anhydride and acetyl tributyl citrate evenly, then add them to a parallel co-rotating twin-screw extruder for blending and extrusion, and set the temperature in the 1-7 zone of the extruder to 160°C in sequence. 180°C, 230°C, 230°C, 230°C, 230°C, 230°C, head temperature is 220°C, to prepare plasticized and capped PGA modified material;

[0039] Then add cornstarch, formamid...

Embodiment 3

[0045] The low-cost bio-based fully degradable film material is composed of the following raw materials in parts by mass: 25 parts of polyglycolide, 35 parts of corn starch, 35 parts of polybutylene adipate / terephthalate, and ethylene diformamide 12.25 parts, 5 parts of ethylene butyl acrylate grafted glycidyl methacrylate, 0.7 parts of citric acid, 1.25 parts of acetyl tributyl citrate, 0.5 parts of maleic anhydride, 0.2 parts of antioxidant 164, 2-(2' 0.2 parts of -hydroxy-5'-methylphenyl)benzotriazole.

[0046] Preparation of low-cost bio-based fully degradable films:

[0047] First, mix polyglycolide, maleic anhydride and acetyl tributyl citrate evenly, then add them to a parallel co-rotating twin-screw extruder for blending and extrusion, and set the temperature in the 1-7 zone of the extruder to 160°C in sequence. 180°C, 230°C, 230°C, 230°C, 230°C, 230°C, head temperature is 220°C, to prepare plasticized and capped PGA modified material;

[0048] Then cornstarch and et...

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Abstract

The invention discloses a low-cost biology base full degradation thin film and a preparation method thereof. The thin film is prepared from the following ingredients in parts by mass: 15 to 25 parts of polyglycollide, 25 to 35 parts of corn starch, 35 to 55 parts of poly(butyleneadipate-co-terephthalate), 5 parts of compatilizers, 3.75 to 12.25 parts of starch plasticizers, 0.5 to 0.7 part of citric acid, 0.75 to 1.25 parts of acetyl tributyl citrate, 0.3 to 0.5 part of maleic anhydride, 0.2 part of antioxidants 164 and 0.2 part of 2-(2'-hydroxyl-5'-methyl phenyl)benzotriazole. The low-cost biology base full degradation thin film provided by the invention has the advantages that the biology base content can reach 30 percent or higher; the cost is lower; the stretching intensity exceeds that of a conventional PE thin film; very important significance is realized on solving the problem of white pollution and promoting the popularization and the application of a full biodegrade material.

Description

technical field [0001] The invention belongs to the technical field of fully biodegradable materials, and relates to a biodegradable film, in particular to a low-cost bio-based fully degradable film and a preparation method thereof. Background technique [0002] The use of plastic packaging film has brought great convenience to our production and life. However, because traditional plastic packaging films are all made of non-degradable petroleum-based materials, their extensive use not only causes waste of resources, but also brings "white pollution" to the environment, which has aroused widespread concern in society. The incineration and local burial of waste plastic film will cause serious air pollution and soil pollution, and secondary recycling has disadvantages such as low recovery rate, material performance degradation and high recycling cost. Therefore, it is undoubtedly necessary to promote the use of fully biodegradable materials. An effective way to fundamentally s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L3/02C08L67/02C08L67/04C08L51/00C08L23/08C08K5/053C08K5/20C08K5/21C08K5/092C08K5/11C08K5/3475
CPCC08K5/053C08K5/092C08K5/11C08K5/20C08K5/21C08K5/3475C08L3/02C08L23/08C08L51/00C08L67/02B29K2067/006B29C48/10B29C48/40B29C48/86B29C48/80B29K2023/06B29C48/022C08L2205/03C08J3/226C08J5/18C08J2367/02C08J2403/02C08J2451/04C08J2467/04C08K5/005C08L51/04C08L67/04C08J2303/02C08J2423/08C08J2429/14C08J2433/02C08J2451/06C08J2467/02C08L2201/06C08L2201/08C08L2203/16C08L2205/025C08L2205/035C08L2205/06C08L2205/08C08L2310/00
Inventor 吴晓金司鹏吴维果翁伟明刘志刚
Owner JIANGSU JINJU ALLOY MATERIAL
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