TY - GEN
T1 - Thermal behaviors and fracture toughness of polyurethane-dispersed difunctional epoxy resins
AU - Park, Soo Jin
AU - Lee, Jae Rock
N1 - Publisher Copyright:
© (2008) Trans Tech Publications, Switzerland.
PY - 2008/1/1
Y1 - 2008/1/1
N2 - In this work, the thermal and mechanical interfacial properties of diglycidylether of bisphenol A (DGEBA)/polyurethane modified epoxy (UME-305) blends were investigated. 4,4’-Diaminodiphenyl methane (DDM) was used as a curing agent, and the content of UME-305 in the mixture was 0, 20, 40, 60, 80, and 100 wt%. The cure behaviors of DGEBA/UME-305 blends were studied by DSC. The mechanical interfacial properties were confirmed by critical stress intensity factor (KIC) at 77K and 298K. As a result, the exothermic peaks in DSC results were shifted to higher temperature region as increasing the UME-305 content in the blends. The KIC was also enhanced with increasing the UME-305 content and showing a maximum value at 60 wt.% UME-305.
AB - In this work, the thermal and mechanical interfacial properties of diglycidylether of bisphenol A (DGEBA)/polyurethane modified epoxy (UME-305) blends were investigated. 4,4’-Diaminodiphenyl methane (DDM) was used as a curing agent, and the content of UME-305 in the mixture was 0, 20, 40, 60, 80, and 100 wt%. The cure behaviors of DGEBA/UME-305 blends were studied by DSC. The mechanical interfacial properties were confirmed by critical stress intensity factor (KIC) at 77K and 298K. As a result, the exothermic peaks in DSC results were shifted to higher temperature region as increasing the UME-305 content in the blends. The KIC was also enhanced with increasing the UME-305 content and showing a maximum value at 60 wt.% UME-305.
KW - Difunctional epoxy
KW - Mechanical interfacial properties
KW - Polyurethane modified epoxy
UR - https://www.scopus.com/pages/publications/84955166914
U2 - 10.4028/www.scientific.net/SSP.135.43
DO - 10.4028/www.scientific.net/SSP.135.43
M3 - Conference contribution
AN - SCOPUS:84955166914
SN - 9783908451488
T3 - Solid State Phenomena
SP - 43
EP - 46
BT - Nanocomposites and Nanoporous Materials VIII
A2 - Rhee, Chang Kyu
PB - Trans Tech Publications Ltd
T2 - 8th International Symposium on Nanocomposites and Nanoporous Materials, ISNNM 2007
Y2 - 22 February 2007 through 24 February 2007
ER -