Table of Contents
Conference Papers in Materials Science
Volume 2013, Article ID 750802, 5 pages
Conference Paper

A Mechanical Analysis of In Situ Polymerized Poly(butylene terephthalate) Flax Fiber Reinforced Composites Produced by RTM

1Department of Mechanical Engineering and Industrial Management (DEMGI), School of Technology and Management, Polytechnic Institute of Viseu, 3504-510 Viseu, Portugal
2Institute of Mechanical Engineering and Industrial Management (INEGI), University of Porto, 4200-465 Porto, Portugal
3Department of Mechanical Engineering (DEMec), Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal

Received 16 September 2013; Accepted 18 November 2013

Academic Editors: R. Fangueiro, H. Hong, and A. T. Marques

This Conference Paper is based on a presentation given by C. Romão at “International Conference on Natural Fibers—Sustainable Materials for Advanced Applications 2013” held from 9 June 2013 to 11 June 2013 in Guimarães, Portugal.

Copyright © 2013 C. Romão et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


This work addresses mechanical characterization in tension of woven flax fabric reinforced in situ polymerized poly(butylene terephthalate) composites, produced by the RTM technique. A brief description of the developed RTM set-up is made and the composite manufacturing details are presented. A morphological analysis of the mechanically characterized materials by Scanning Electronic Microscopy (SEM) is also made. The produced neat polymer (pCBT) showed a brittle behavior and mechanical properties lower than those found in the literature. Its reinforcement with woven flax fabric resulted in an enhancement of both tensile strength and stiffness. The obtained results can be significantly improved by the polymer modifying chemically , optimizing the control of the processing parameters, and subjecting flax fibers to a surface treatment compatible with the CBT 160 resin.