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Micropore foamed polymer capable of biodegradable and its preparation method

A technology of microcellular foaming and biodegradation, which is applied in the field of microcellular foamed polymers and its preparation, can solve problems such as environmental pollution and unfavorable environmental protection, and achieve the effects of improving toughness and application range, and being beneficial to environmental protection

Inactive Publication Date: 2007-02-14
CIVIL AVIATION UNIV OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, PS, PE, PP, rigid PVC profiles, PC / ABC, thermoplastic elastomers and other microcellular foamed polymers can be produced. Although these microcellular foamed polymers have the advantages mentioned above, due to their The material used for the matrix is ​​a non-degradable polymer, so the products made of these polymers will cause certain pollution to the environment because they cannot be disposed of after use, so it is not conducive to environmental protection

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Mix polylactic acid and orange oil in a closed container at a weight ratio of 100:2; add chloroform to the above mixture until the mixture is completely melted; add 0.01 parts by weight of azobisiso Butyronitrile is used as an initiator, and then reacted for 1.5 hours at a temperature of 50° C. under stirring conditions to prepare the biodegradable microcellular foaming polymer provided by the present invention.

Embodiment 2

[0021] Mix polylactic acid and orange oil in a closed container with a weight ratio of 100:6; add N,N-dimethylformamide to the above mixture until the mixture is completely melted; add 0.016 wt. Part of azobisisobutyronitrile was used as an initiator, and then reacted for 2.0 hours at a temperature of 60° C. under stirring conditions to prepare the biodegradable microcellular foaming polymer provided by the present invention.

Embodiment 3

[0023] Mix polylactic acid and orange oil in a closed container with a weight ratio of 100:10; add chloroform to the above mixture until the mixture is completely melted; add 0.022 parts by weight of azobisiso Butyronitrile is used as an initiator, and then reacted for 1.5 hours at a temperature of 55° C. under stirring conditions to prepare the biodegradable microcellular foaming polymer provided by the present invention.

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Abstract

The present invention discloses one kind of biodegradable microporous foamed polymer and its preparation process. The biodegradable microporous foamed polymer is prepared with one of polyhydroxy butyrate, polyhydroxy valeric ester and polylactic acid, mandarin oil and azo diisobutyronitrile as initiator in the weight ratio of 100 to 2-30 to 0.01-0.05, and through solution polymerization inside solvent. The biodegradable microporous foamed polymer is modified with the limonene in mandarin oil and has raised toughness, expanded application range and environment friendship.

Description

technical field [0001] The invention relates to a microcellular foaming polymer and a preparation method thereof, in particular to a biodegradable microcellular foaming polymer and a preparation method thereof. Background technique [0002] Microcellular foamed polymer is a kind of porous polymer material with polymer as the substrate, and the substrate contains cells with sizes ranging from less than 1 micron to tens of microns. Because this material has special physical and mechanical properties such as high impact strength and specific strength, good toughness and thermal stability, light weight, long fatigue life, low dielectric constant and thermal conductivity, it is currently widely used in food packaging, aircraft, etc. And in the fields of automobile parts, sports equipment, thermal insulation materials, filtration and medicine, at the same time, no chemical foaming agents such as fluorine and chlorine are used in the processing of microporous foam materials, so the...

Claims

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Application Information

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IPC IPC(8): C08G63/91C08F283/02C08J9/00
Inventor 李梅李志强霍晓燕
Owner CIVIL AVIATION UNIV OF CHINA
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