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Biodegradation expanded plastic and method for manufacturing same

A technology of foamed plastics and biodegradation, applied in the field of biodegradable foamed plastics and its manufacturing, can solve the problems of non-degradable foamed plastics, white pollution, etc., and achieve the effects of low water absorption, good dimensional stability, and low density

Inactive Publication Date: 2008-08-20
陈俭秋
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: to overcome the problem of white pollution caused by the inability of traditional foamed plastics to degrade, and to provide biodegradable foamed plastics and its production technology, which have low density, high specific strength, good shock absorption, and can Completely biodegradable and other characteristics, it can be used for shock-absorbing packaging of household appliances, electronics, instruments, industrial accessories, glass / ceramic and other industrial products, and can also be used in fields that require thermal insulation

Method used

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  • Biodegradation expanded plastic and method for manufacturing same

Examples

Experimental program
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Effect test

Embodiment 1

[0045]Get 100 parts by weight of polylactic acid resin, polylactic acid plasticizer adopts 10 parts by weight of oligomer polylactic acid (OLA), and polyhydroxyalkanoate copolymer adopts 3-hydroxybutyl ester-3-hydroxypentyl ester copolymer (PHBV) 20 parts by weight, 20 parts by weight of corn starch, 17 parts by weight of foaming agent azodicarbonamide (AC); 4 parts by weight of zinc oxide (ZnO) as a blowing agent; 1.0 parts by weight of lubricant adopts the following mixture: 0.50 parts by weight of stearamide, 0.30 parts by weight of zinc stearate, 0.20 parts by weight of polyethylene wax; 0.6 parts by weight of antiaging agent adopts the following mixture: tetrakis [3-(3,5-di-tert-butyl-4-hydroxybenzene base) propionic acid] 0.3 parts by weight of pentaerythritol, 0.15 parts by weight of tris (2,4-di-tert-butylphenyl) phosphite, 0.10 parts by weight of 2-hydroxyl-4-n-octyloxybenzophenone, 2- (2'-hydroxyl-3', 5'-di-tert-butylphenyl)-5-chlorobenzotriazole 0.05 parts by weight...

Embodiment 2

[0051] Get 100 parts by weight of polylactic acid resin, polylactic acid plasticizer adopts 10 parts by weight of polyethylene glycol (PEG), polyhydroxyalkanoate copolymer adopts 3-hydroxybutyl ester-3-hydroxypentyl ester copolymer (PHBV) 30 Parts by weight, 20 parts by weight of cornstarch, 17 parts by weight of foaming agent azodicarbonamide (AC); 4 parts by weight of zinc oxide (ZnO) as a foaming agent; 0.8 parts by weight of lubricant adopts the following mixture: ethylene double oil 0.40 parts by weight of acid amide, 0.20 parts by weight of calcium stearate, 0.20 parts by weight of polyethylene wax; 0.45 parts by weight of anti-aging agent adopts the following mixture: ) 0.20 parts by weight of octadecyl propionate, 0.10 parts by weight of tris (2,4-di-tert-butylphenyl) phosphite, 0.10 parts by weight of 2-hydroxyl-4-n-octyloxybenzophenone, 2- (2'-hydroxyl-3', 5'-di-tert-butylphenyl)-5-chlorobenzotriazole 0.05 parts by weight;

[0052] First make polylactic acid (PLA) c...

Embodiment 3

[0057] Get 100 parts by weight of polylactic acid resin, polylactic acid plasticizer adopts 20 parts by weight of polylactic acid-ethylene glycol copolymer (PLA-PEG), polyhydroxyalkanoate copolymer adopts 3-hydroxybutyrate-4-hydroxybutyrate Ester copolymer (P-3HB-co-4HB) 10 parts by weight, corn starch 40 parts by weight, foaming agent azodicarbonamide (AC) 12 parts by weight; foaming agent zinc oxide (ZnO) 3 parts by weight 1.2 parts by weight of lubricant adopt the following mixture: 0.50 parts by weight of ethylene bisoleic acid amide, 0.40 parts by weight of calcium stearate, 0.30 parts by weight of polyethylene wax; 0.70 parts by weight of anti-aging agent adopt the following mixture: four [3-( 3,5-di-tert-butyl-4-hydroxyphenyl) propionic acid] 0.30 parts by weight of pentaerythritol, 0.15 parts by weight of tris(2,4-di-tert-butylphenyl) phosphite, dilauryl thiodipropionate 0.10 parts by weight of esters, 0.10 parts by weight of 2-hydroxyl-4-n-octyloxybenzophenone, 2-(2'-...

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Abstract

The invention relates to a biological degradation foamed plastic which comprises the following components and contents: polylactic acid resin: 100 portions; polylactic acid plasticizer: 10 to 20 portions; polyhydroxy alkanoates multipolymer: 10 to 50 portions; corn starch: 20 to 60 portions; foaming agent: 8 to 17 portions; blowing promoter: 2 to 4 portions; lubricant: 0.8 to 1.2 portions; antiager: 0.45 to 0.70 portion, and the amount is calculated by weight. The biological degradation foamed plastic of the invention also provides a manufacturing method for manufacturing the biological degradation foamed plastic. The biological degradation foamed plastic is characterized by low density, high specific strength, good shock absorption performance and complete biological degradation, can be applied not only in the shock absorption packages of industrial products, such as domestic appliances, electron, instruments, industrial fittings and glass / ceramic etc., but also in a field that needs heat preservation and thermal insulation, thus the biological degradation foamed plastic of the invention is a new environmental-friendly packaging material.

Description

technical field [0001] The invention relates to a biodegradable foamed plastic and a manufacturing method thereof, in particular to a foamed plastic with low density, high specific strength, good dimensional stability, low water absorption, and complete biodegradability and a manufacturing method thereof. Background technique [0002] Foamed plastic products are increasingly becoming an important basic material in people's production and life because of their light weight, shock absorption, heat insulation, insulation, and low price. At present, the output of foamed plastic products is increasing at a rate of more than 10% per year. According to statistics from relevant departments, the total output of foamed plastics in my country has exceeded 1.2 million tons in 2006, and the total industrial output value is about 20 billion yuan; of which, about 700,000 tons Used in household appliances, electronics, transportation, industrial accessories, consumer equipment, etc., providi...

Claims

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Application Information

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IPC IPC(8): C08L67/04C08K5/3475C08J9/04B29C67/20C08L3/02C08K3/22C08K5/36C08K5/524C08K5/10
Inventor 肖望东
Owner 陈俭秋
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