Influence of fiber hybridization on the dynamic mechanical properties of glass/ramie fiber-reinforced polyester composites-Reference-Cited by-同舟云学术

Influence of fiber hybridization on the dynamic mechanical properties of glass/ramie fiber-reinforced polyester composites

Published:2012-10-24 Issue:23 Volume:31 Page:1652-1661
ISSN:0731-6844
Container-title:Journal of Reinforced Plastics and Composites
language:en
Short-container-title:Journal of Reinforced Plastics and Composites

Author:

Romanzini Daiane¹,Ornaghi Heitor L²,Amico Sandro C²,Zattera Ademir J¹

Affiliation:

1. Programa de Pós-Graduação em Engenharia de Processos e Tecnologias (PGEPROTEC)/CCET, Universidade de Caxias do Sul, Brasil

2. Programa de Pós-Graduação em Engenharia de Minas, Metalúrgica e de Materiais, Universidade Federal do Rio Grande do Sul, Brasil

Abstract

This study aims to evaluate the influence of fiber hybridization and frequency on the dynamic mechanical properties of ramie/glass hybrid fiber-reinforced polyester composites. The storage modulus ( E′), loss modulus ( E″) and damping behavior (tan δ) were evaluated as a function of different relative glass/ramie fiber volume ratios. For the storage modulus, the importance of the reinforcement effect above Tg was revealed. Also, the peak height, peak width at half-height and relaxation area were investigated for the loss modulus and tan δ curves, showing the influence of a shoulder below Tg for each case. Finally, the tan δ peak shifts to higher temperatures by increasing the frequency. Higher activation energy was observed for 75% glass fiber-containing composites.

Publisher

SAGE Publications

Subject

Materials Chemistry,Polymers and Plastics,Mechanical Engineering,Mechanics of Materials,Ceramics and Composites

Link

http://journals.sagepub.com/doi/pdf/10.1177/0731684412459982

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