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PBS (Polybuthylenesuccinate) /PLA (Polylactic Acid)/PHA (Polyhydroxyalkanoate) biodegradable composite material and preparation method thereof

A composite material and biodegradation technology, applied in the field of PBS/PLA/PHA biodegradable composite material and its preparation, to achieve the effect of wide application, good comprehensive performance and good comprehensive mechanical properties

Inactive Publication Date: 2016-08-31
王泽陆
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is the deficiency in the performance of commonly used PBS, PLA and PHA single biodegradable materials, and a kind of PBS / PLA / PHA biodegradable composite material and its preparation method are provided

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The PBS / PLA / PHA biodegradable composite material described in this embodiment includes the following components in parts by weight: 40 parts of polylactic acid PLA, 30 parts of polybutylene succinate PBS, 25 parts of polyhydroxyalkanoate PHA, 6 parts of citric acid, 4 parts of rubidium benzoate, 5 parts of bismuth trifluoromethanesulfonate, 8 parts of erucamide, 42 parts of filler, 4 parts of compatibilizer, 2 parts of plasticizer, 1 part of antioxidant, antibacterial agent 2 copies;

[0036] The filler includes silicon dioxide, calcium carbonate, vermiculite powder, poplar bark dry powder, banana fiber, sisal fiber, and Folium vermicelli powder with a weight ratio of 3:5:4:1:1:0.5:0.3:2. and oyster powder;

[0037] Described compatibilizer comprises natural latex, ethylene-acrylic acid copolymer and hexamethylene diisocyanate that the weight ratio is 3:1:1.5;

[0038] Described plasticizer comprises tributyl acetate, mannitol and glyceryl triacetate that the weight r...

Embodiment 2

[0047] The PBS / PLA / PHA biodegradable composite material described in this embodiment includes the following components in parts by weight: 50 parts of polylactic acid PLA, 42 parts of polybutylene succinate PBS, 36 parts of polyhydroxyalkanoate PHA, 12 parts of citric acid, 8 parts of rubidium benzoate, 11 parts of bismuth trifluoromethanesulfonate, 15 parts of erucamide, 55 parts of filler, 9 parts of compatibilizer, 8 parts of plasticizer, 5 parts of antioxidant, antibacterial agent 6 copies;

[0048] Described filler, compatibilizer, plasticizer, antioxidant and antibacterial agent are all the same as embodiment 1.

[0049] The preparation method of the PBS / PLA / PHA biodegradable composite material described in this embodiment comprises the steps:

[0050] First dry polylactic acid PLA, polybutylene succinate PBS, polyhydroxyalkanoate PHA, filler, rubidium benzoate, bismuth trifluoromethanesulfonate and erucamide at 65°C;

[0051] Weigh each raw material according to the for...

Embodiment 3

[0054] The PBS / PLA / PHA biodegradable composite material described in this embodiment includes the following components in parts by weight: 45 parts of polylactic acid PLA, 36 parts of polybutylene succinate PBS, 30 parts of polyhydroxyalkanoate PHA, 9 parts of citric acid, 6 parts of rubidium benzoate, 8 parts of bismuth trifluoromethanesulfonate, 11 parts of erucamide, 48 parts of filler, 6 parts of compatibilizer, 5 parts of plasticizer, 3 parts of antioxidant, antibacterial agent 4 parts;

[0055] Described filler, compatibilizer, plasticizer, antioxidant and antibacterial agent are all the same as embodiment 1.

[0056] The preparation method of the PBS / PLA / PHA biodegradable composite material described in this embodiment comprises the steps:

[0057] First dry polylactic acid PLA, polybutylene succinate PBS, polyhydroxyalkanoate PHA, filler, rubidium benzoate, bismuth trifluoromethanesulfonate and erucamide at 52°C;

[0058] Weigh each raw material according to the form...

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Abstract

The invention discloses a PBS (Polybuthylenesuccinate) / PLA (Polylactic Acid) / PHA (Polyhydroxyalkanoate) biodegradable composite material and a preparation method thereof. The PBS / PLA / PHA composite material is prepared from the following components in parts by weight: the PLA, the PBS, the PHA, citric acid, rubidium benzoate, bismuth trifluoromethanesulfonate, erucyl amide, filler, a compatilizer, a plasticizer, an antioxidant and an antibacterial agent. By reasonably selecting the materials and proportioning, the PBS / PLA / PHA composite material prepared by the preparation method disclosed by the invention plays the characteristics of respective properties of the PBS, the PLA and the PHA, and has higher impact-resisting strength, tensile strength and elongation at break, good comprehensive mechanical property, long service life and wide application range.

Description

technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to a PBS / PLA / PHA biodegradable composite material and a preparation method thereof. Background technique [0002] With the increasing use and application of various biodegradable materials, higher requirements are put forward for the performance of biodegradable materials. Polybutylene succinate (PBS) is a semi-crystalline thermoplastic degradable plastic with high melting point, excellent mechanical and processing properties, and can be completely decomposed by microorganisms. However, the slow crystallization rate and high cost of PBS limit the wider use of PBS. Applications. Polylactic acid (PLA) is a new type of biodegradable plastic. PLA has high hardness and tensile strength, but its impact resistance is not good. Polyhydroxyalkanoate (PHA) is a thermoplastic polyester synthesized by microbial fermentation. It has excellent biodegradability, UV stability, biocomp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/04C08L67/02C08L7/00C08K13/02C08K3/36C08K3/26C08K3/34C08K5/092C08K5/20
CPCC08L67/04C08L2201/06C08L2205/025C08L2205/035C08L67/02C08L7/00C08K13/02C08K3/36C08K2003/265C08K3/34C08K5/092C08K5/20
Inventor 王泽陆
Owner 王泽陆
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