Paper Title:
Study on Polylactide/Poly(ether block amide) Composite Biomaterials and Shape-Memory Effect
  Abstract

Melt blending of PLA and biodegradable PE-b-A has been performed in an effort to toughen the PLA. With the PE-b-A contents increasing, the elongation at break of composites increased and the brittle break became ductile break. When the PE-b-A content is 10%, the tensile strength of composite is similar with neat PLA, and the elongation increased significantly. The composites showed wonderful shape-memory effect. The composites occurred to deformation upon tensile load, and recovered to original shape quickly with temperature increasing. PE-b-A acts as stress concentrator in system with the stress release locally and energy-dissipation process. These will prevent PLA matrix from breaking under high deformation and make the PLA molecular orientation. Consequently, releasing the stress by heating up the material will reform the shape back to the original shape.

  Info
Periodical
Materials Science Forum (Volumes 610-613)
Main Theme
Edited by
Zhongwei Gu, Yafang Han, Fusheng Pan, Xitao Wang, Duan Weng and Shaoxiong Zhou
Pages
1312-1314
DOI
10.4028/www.scientific.net/MSF.610-613.1312
Citation
W. Zhang, L. Chen, Y. Zhang, "Study on Polylactide/Poly(ether block amide) Composite Biomaterials and Shape-Memory Effect", Materials Science Forum, Vols. 610-613, pp. 1312-1314, 2009
Online since
January 2009
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Hyo Jin Kim, Do Won Seo, Jae Kyoo Lim, Toru Fujii
417
Authors: Wen Feng Xu
Abstract:Carbon composites have good mechanical properties and preserve the inherent excellent biocompatibility of carbon, which make them great...
477
Authors: S. Kanagaraj, A. Fonseca, R.M. Guedes, Monica S.A. Oliveira, José A.O. Simões
Abstract:Ultrahigh molecular weight polyethylene (UHMWPE) is a unique polymer with outstanding physical and mechanical properties that makes it...
331
Authors: Xin Fan
Chapter 3: Micro/Nano Materials
Abstract:Blends of Poly(L-lactide) (PLLA) and nano-SiO2 powder were prepared via solution mixing. Effect of nano-SiO2 particles on the crystallinity...
367
Authors: Anizah Kalam, M.N. Berhan, Hanafi Ismail
Chapter 1: Composites
Abstract:Hybrid composites were prepared by incorporating oil palm fruit bunch (OPFB) fibre in the mixture of clay and polypropylene as secondary...
154