Thermal properties of epoxy resin/filler hybrid composites

• Published in: Polymer degradation and stability Vol. 97; no. 11; pp. 2148 - 2153
• Main Authors: Jin, Fan-Long, Park, Soo-Jin
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 01.11.2012; Elsevier
• Subjects: Applied sciences; bisphenol A; Coefficient of thermal expansion; Combustion; epoxides; Epoxy resin; Epoxy resins; Exact sciences and technology; Filler; Fillers; Glass transition temperature; Hybrid composites; mechanical properties; melting; mixing; Nanocomposites; Nanomaterials; Nanostructure; Physicochemistry of polymers; Polymer industry, paints, wood; Technology of polymers; thermal expansion; Thermal properties; Thermal stability; Epoxy resin; Coefficient of thermal expansion; Filler; Glass transition temperature; Thermal stability; Mechanical properties; Polymer; Hybrid composite; Oxide ceramics; Composite material; Non oxide ceramics; Thermal properties; Silicon carbide; Dynamic mechanical properties; Thermal expansion coefficient; Nanocomposite; Alumina
• ISSN: 0141-3910; 1873-2321
• DOI: 10.1016/j.polymdegradstab.2012.08.015

Epoxy resin/filler hybrid composites were prepared by the melt blending of diglycidylether of bisphenol-A (DGEBA), as the epoxy resin, with nano-Al2O3 or nano-SiC particles, as the nanoscaled fillers. The thermal properties, such as the curing behavior, thermal stability, dynamic mechanical properties, and thermal mechanical properties of the DGEBA/nano-Al2O3 and DGEBA/nano-SiC composites were examined using a range of techniques. As a result, the DSC curve peak temperature of both composites decreased with increasing filler content. The integral procedure decomposition temperature increased from 630 °C to 853 °C for DGEBA/nano-Al2O3 composite and 858 °C for DGEBA/nano-SiC composite. The char yield at 800 °C increased from 14.3% to 26.2–26.6% for both composites. Both composites had a 10 °C higher glass transition temperature than the neat epoxy resin. The coefficient of thermal expansion of both composites at the glassy and rubbery regions decreased with increasing filler content.