Thermomechanical Behavior of High Performance Epoxy/Organoclay Nanocomposites

Autor: Suédina M. L. Silva, Carlos José de Araújo, Antônio Gilson de Barbosa Lima, Artur S. C. Leal
Rok vydání: 2014
Předmět:
Zdroj: Advances in Materials Science and Engineering, Vol 2014 (2014)
ISSN: 1687-8442
1687-8434
DOI: 10.1155/2014/102695
Popis: Nanocomposites of epoxy resin containing bentonite clay were fabricated to evaluate the thermomechanical behavior during heating. The epoxy resin system studied was prepared using bifunctional diglycidyl ether of bisphenol A (DGEBA), crosslinking agent diaminodiphenylsulfone (DDS), and diethylenetriamine (DETA). The purified bentonite organoclay (APOC) was used in all experiments. The formation of nanocomposite was confirmed by X-ray diffraction analysis. Specimens of the fabricated nanocomposites were characterized by dynamic mechanical analysis (DMA). According to the DMA results a significant increase in glass transition temperature and storage modulus was evidenced when 1 phr of clay is added to epoxy resin.
Databáze: OpenAIRE