Affiliation:
1. Key Laboratory for Liquid‐Solid Structural Evolution and Processing of Materials (Ministry of Education), School of Materials Science and Engineering Shandong University Jinan Shandong China
Abstract
AbstractBlending poly(hydroxybutyrate‐co‐hydroxyvalerate) (PHBV) and poly(butylene adipate‐co‐ terephthalate) (PBAT) presents an effective approach to fabricate fully biodegradable polymer blends with tailored mechanical properties. This study investigated the composition on the mechanical properties and structure of PHBV/PBAT blend. The remarkable enhancement in elongation of the PHBV/PBAT blends was shown due to the ductile PBAT. The fracture behavior of the PHBV/PBAT specimens transited from brittle to ductile with the increase of the PBAT in the blends. Two different phases as a co‐continuous microstructure with a large interpenetrating structure indicate immiscibility between PHBV and PBAT in the PHBV/PBAT (50:50) specimen. The miscibility, intermolecular interaction, and mechanical properties of PHBV/PBAT blends were also investigated by molecular dynamics simulation. The results showed the immiscibility of PHBV and PBAT. The degradation temperature increased from 277 to 356°C with the increase of PBAT content in the PHBV/PBAT blend. Whereas the crystallinity ability of the PHBV component in the blend was confined by the PBAT phase, leading to a decrease in the overall crystallinity of PHBV.
Funder
National Natural Science Foundation of China
Fundamental Research Funds for the Central Universities
Key Technology Research and Development Program of Shandong
Subject
Materials Chemistry,Polymers and Plastics,Surfaces, Coatings and Films,General Chemistry
Cited by
2 articles.
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