期刊
MATERIALS & DESIGN
卷 36, 期 -, 页码 604-608出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.matdes.2011.11.036
关键词
Composites; Polymer matrix; Microstructure; Mechanical
资金
- Key Science and Technology Project of Shanxi Province [20100321081]
- Department of Personnel of Shanxi Province
Biodegradable poly(lactic acid) (PLA)/poly(butylene adipate-co-terephthalate) (PBAT) blends with various tetrabutyl titanate (TBT) concentration were prepared through melt-extrusion. Mechanical properties and morphology were characterized in terms of tensile and impact testing, dynamical mechanical analysis and scanning electron micrograph (SEM). The results indicated that the overall mechanical properties (including tensile strength, elongation at break, toughness and stiffness) of PLA/PBAT blends can be improved significantly after the incorporation of TBT. The SEM micrographs demonstrated that the compatibility and strong interaction between PLA and PBAT was improved via transesterification during melt-extrusion. The interfacial debonding, pullout of PBAT, yielding deformation were the most important mechanisms to improve toughness. (C) 2011 Elsevier Ltd. All rights reserved.
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