Cellular composites based on continuous fibres and bioresorbable polymers

被引：15

作者：

Buehler, Manuel ^{[1
]}

Bourban, Pierre-Etienne ^{[1
]}

Manson, Jan-Anders E. ^{[1
]}

机构：

[1] Ecole Polytech Fed Lausanne, Lab Composites & Polymers LTC, Inst Mat, CH-1015 Lausanne, Switzerland

来源：

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 2008年 / 39卷 / 12期

基金：

瑞士国家科学基金会;

关键词：

Foams; Thermoplastic resin; Glass fibres; Micro-mechanics;

D O I：

10.1016/j.compositesa.2008.05.020

中图分类号：

T [工业技术];

学科分类号：

08 [工学];

摘要：

Biocompatible composites, whose porosity and fibre fraction call be tailored over a large range and whose mechanical resistance is comparable to that Of natural bone, were processed with poly(lactic acid) (PLA) and continuous glass fibres. The processing steps included the winding of unidirectional preforms made of mingled fibres, and a subsequent supercritical gas foaming. Results showed that the fibres were mainly distributed within the cell walls without Crossing the pores. Therefore, a model combining the buckling of composite columns into a polymer foam Structure was proposed in order to predict the final mechanical properties. Experimental results revealed the high reinforcing effect of continuous glass fibres in PLA foams and validated the model. Cellular composites are of interest for biomedical and light-weight applications. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：1779 / 1786

页数：8

共 23 条

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[3]

Cellular thermoplastic composites with microstructural gradients of fibres and porosity [J].