2024 - Sustainable Industrial Processing Summit
SIPS 2024 Volume 8. Monteiro Intl. Symp / Composite, Ceramic and Nano Materials Processing
| Editors: | F. Kongoli, P. Assis, H.A.C. Lopera, S. Diaz, V. Scarpini Candido |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2024 |
| Pages: | 288 pages |
| ISBN: | 978-1-998384-18-1 (CD) |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
CD shopping page
THERMAL MECHANICAL AND DYNAMIC MECHANICAL ANALYSIS OF SEDGE FIBERS (CYPERUS MALACCENSIS) COATED BY GRAPHENE OXIDE AS A REINFORCEMENT FOR EPOXY MATRIX
Lucas Neuba1; Sergio Monteiro2;1MILITARY INSTITUTE OF ENGINEERING, Volta Redonda, Brazil; 2MILITARY INSTITUTE OF ENGINEERING, Rio de Janeiro, Brazil;
Type of Paper: Regular
Id Paper: 227
Topic: 18
Abstract:
Composites with natural lignocellulosic fibers (NLFs) currently have extremely diverse applications, including in engineering industries, due to their lower cost and density, as well as ease of processing. Another notable material, graphene oxide, has attracted considerable attention for its properties, mainly as a coating to improve interfacial adhesion in polymer composites. Therefore, this research focuses on investigating the dynamic mechanical (DMA) and thermomechanical analysis (TMA) for epoxy matrix composites containing 30% by volume of CM sedge fiber incorporated with graphene oxide. Compared to the control group (untreated epoxy) the damping factor (Tan δ), being the ratio of the loss modulus under storage, is significantly increased from (0.55-0.75) for the composites reinforced with 30% of CM sedge fibers incorporated with graphene oxide. The Tg found at 127°C for condition 30 FJGO/EP was higher than the other EP conditions, 30 FJ/EP and 30 SF/EP-GO, as well as the coefficient of thermal expansion (208.52 to 248.95 x 10−6/°C). The mass loss for the 30 SFGO/EP condition in the first stage was slightly higher than the EP condition (1.63%). These DMA and TMA results prove to be promising.