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Maleic anhydride graft polybutylene succinate (PBS) alloy and preparation method thereof

A technology of polybutylene succinate and polybutylene succinate, which is applied in the field of degradable materials and its manufacturing, can solve the problem of low melt strength, low physical and mechanical properties of molded products, and direct blending of two phases Poor capacity and other issues

Inactive Publication Date: 2009-09-09
深圳市未名北科环境材料有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, PBS also has obvious disadvantages: low melt strength during processing; low physical and mechanical properties of molded products;
[0006] and because the melt strength and crystallinity of PBS and PLA are too far apart, the compatibility of the direct blending of the two phases is poor

Method used

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  • Maleic anhydride graft polybutylene succinate (PBS) alloy and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Get 100 parts of polybutylene succinate by weight, 20 parts of polylactic acid resin, 1.0 part of maleic anhydride, 0.02 part of initiator, 0.4 part of acetone;

[0038] Pass polybutylene succinate and polylactic acid resin through a vacuum drying tank to remove surface moisture;

[0039] Add polybutylene succinate, polylactic acid resin, maleic anhydride, initiator and acetone into the mixer and mix;

[0040] According to the conditions of the twin-screw reaction extruder set above, the mixed materials are put into the twin-screw reaction extruder to carry out reaction grafting, traction, underwater drawing, and granulation.

Embodiment 2

[0042] Take 100 parts of polybutylene succinate, 20 parts of polylactic acid resin, 2.0 parts of maleic anhydride, 0.05 parts of initiator and 1.0 part of acetone by weight.

[0043] Other steps are the same as in Example 1.

Embodiment 3

[0045] Take 100 parts of polybutylene succinate, 30 parts of polylactic acid resin, 1.0 part of maleic anhydride, 0.02 part of initiator and 0.4 part of acetone by weight.

[0046] Other steps are the same as in Example 1.

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Abstract

The invention relates to a maleic anhydride graft polybutylene succinate (PBS) alloy, comprising the following ingredients in terms of the weight ratios: 100 parts of PBS, 20-30 parts of polylactic resin, 1.0-2.0 parts of maleic anhydride monomer, 0.02-0.05 part of initiator and 0.4-1.0 part of acetone. The degradable materials formed by the maleic anhydride monomer graft PBS and polylactic acid having excellent mechanical property, tensile strength and elongation at break; each material system has better compatibility. The invention also relates to a method for preparing the alloy material.

Description

【Technical field】 [0001] The invention relates to a degradable material and a manufacturing method thereof, in particular to a maleic anhydride grafted polybutylene succinate alloy and a manufacturing method thereof. 【Background technique】 [0002] With the increasing use of electronic and electrical products, there are more and more scrapped electronic and electrical products. The harmful substances in these wastes have caused great harm to the environment and human health. Using biodegradable materials can effectively solve these problems. [0003] Polybutylene succinate (PBS) entered the field of material research in the 1990s, and quickly became one of the hot materials in the research of general-purpose fully biodegradable plastics that can be widely used, and polycaprolactone (PCL) Compared with degradable plastics such as , polyhydroxybutyrate (PHB), and polyhydroxyacid (PHA), PBS has the characteristics of low price and excellent mechanical properties; and compared ...

Claims

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Application Information

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IPC IPC(8): C08F283/02B29B9/06B29C47/92B29C48/40B29C48/92
CPCB29C48/92B29C2948/92704B29C48/04B29C48/40B29C48/9185B29C48/919B29C2948/92561B29C2948/92895B29C2948/92904
Inventor 尹建伟居学成刘勇余汉成刘钊
Owner 深圳市未名北科环境材料有限公司
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