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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 33, Number 8
BKCSDE 33(8)
August 20, 2012

Title	Thermal Stability and Fracture Toughness of Epoxy Resins Modified with Epoxidized Castor Oil and Al₂O₃ Nanoparticles
Author	Lin Zhu, Fan-Long Jin, Soo-Jin Park*
Keywords	Epoxy resins, Al₂O₃ nanoparticles, Epoxidized castor oil, Thermal stabilities, Fracture toughness
Abstract	This study examined the effects of the epoxidized castor oil (ECO) and Al2O3 content on the thermal stability and fracture toughness of the diglycidylether of bisphenol-A (DGEBA)/ECO/Al2O3 ternary composites using a range of techniques. The thermal stability of the composites was decreased by the addition of ECO and Al2O3 nanoparticles. The fracture toughness of the composites was improved significantly by the addition of ECO and Al2O3 nanoparticles. The composite containing 3 wt % Al2O3 nanoparticles showed the maximum flexural strength. Scanning electron microscopy (SEM) revealed tortuous cracks in the DGEBA/ECO/Al2O3 composites, which prevented deformation and crack propagation.
Page	2513 - 2516
Full Text	PDF

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