Thermal behaviors and fracture toughness of polyurethane-dispersed difunctional epoxy resins

Soo Jin Park, Jae Rock Lee

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

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.

Original languageEnglish
Title of host publicationNanocomposites and Nanoporous Materials VIII
EditorsChang Kyu Rhee
PublisherTrans Tech Publications Ltd
Pages43-46
Number of pages4
ISBN (Print)9783908451488
DOIs
StatePublished - 2008
Event8th International Symposium on Nanocomposites and Nanoporous Materials, ISNNM 2007 - Jeju, Korea, Republic of
Duration: 22 Feb 200724 Feb 2007

Publication series

NameSolid State Phenomena
Volume135
ISSN (Print)1012-0394
ISSN (Electronic)1662-9779

Conference

Conference8th International Symposium on Nanocomposites and Nanoporous Materials, ISNNM 2007
Country/TerritoryKorea, Republic of
CityJeju
Period22/02/0724/02/07

Bibliographical note

Publisher Copyright:
© (2008) Trans Tech Publications, Switzerland.

Keywords

  • Difunctional epoxy
  • Mechanical interfacial properties
  • Polyurethane modified epoxy

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