Study on fracture behavior of surface treated montmorillonite/epoxy nanocomposites.
It is known that the mechanical properties of clay-reinforced nanocomposites are significantly affected by the dispersion of clay particles in the matrix. In this study, the effect of surface-treatment of Montmorillonite (MMT) on the fracture behavior of MMT/epoxy nanocomposite was investigated. For this purpose, fracture tests were performed using samples with three different clay concentration level. After fracture tests, SEM analysis was made on the fracture surfaces to examine the fracture mechanism. It was found that the MMT treatment using 3-aminopropyltriethoxysilane enhanced the fracture toughness increased of the MMT/epoxy nanocomposite. This is due to the improved intercalation effect and interfacial strength between MMT and epoxy matrix.
Graduate School of Mechanical Engineering, KyungHee University, Yongin 446-701, Korea.
Sung-Rok
SR
Ha
Kyong-Yop
KY
Rhee
Hee-Cheul
HC
Kim
Jeong-Tai
JT
Kim
Soo-Jin
SJ
Park
D001546:Bentonite / Q000737:chemistry*; D003460:Crystallization / Q000379:methods*; D004852:Epoxy Compounds / Q000737:chemistry*; D006244:Hardness; D006245:Hardness Tests; D046911:Macromolecular Substances / Q000737:chemistry; D008422:Materials Testing; D008968:Molecular Conformation; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D036103:Nanotechnology / Q000379:methods*; D010316:Particle Size; D013499:Surface Properties
D004852:Epoxy Compounds; D046911:Macromolecular Substances; D001546:Bentonite