Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
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A Study on the Curing Behavior of Epoxy Resin Incorporating PEI as a Toughening Agent

PEI를 강인화제로 도입한 에폭시 수지의 경화거동 연구

  • Lee, Jae Min (Department of Organic Materials Engineering, Chungnam National University) ;
  • Lee, Min Jun (Department of Organic Materials Engineering, Chungnam National University) ;
  • Lee, Pil Gyu (Department of Organic Materials Engineering, Chungnam National University) ;
  • Kwon, MiYeon (Korea Institute of Industrial Technology) ;
  • Lee, Seung Goo (Department of Organic Materials Engineering, Chungnam National University)
  • 이재민 (충남대학교 유기소재.섬유시스템공학과) ;
  • 이민준 (충남대학교 유기소재.섬유시스템공학과) ;
  • 이필규 (충남대학교 유기소재.섬유시스템공학과) ;
  • 권미연 (한국생산기술연구원) ;
  • 이승구 (충남대학교 유기소재.섬유시스템공학과)
  • Received : 2021.09.15
  • Accepted : 2021.10.12
  • Published : 2021.10.31
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Abstract

In addition to being cost effective, epoxy resin has excellent mechanical, electrical, and chemical characteristics with minimal shrinkage during processing. Additionally, it produces negligible volatile substances during curing, therefore rendering it widely applicable in various industrial fields, for instance, composite materials. However, due to the densely crosslinked microstructure, it is brittle and has relatively poor resistance to crack initiation and propagation, which affects its durability. Hence, it is necessary to improve the toughness and the heat resistance of epoxy resin. To this end, a method of introducing super engineering plastic in the form of particles was investigated. In this study, polyetherimide (PEI), which has excellent thermal, mechanical, and chemical properties, was applied as a toughening agent to an epoxy resin, and the change in the curing behavior of the epoxy resin when the content of the PEI was changed was observed. In addition, to improve the dispersibility of the PEI particles in the epoxy resin, the toughening effect of the PEI was modified through amination.

Keywords

Acknowledgement

본 연구는 한국산업기술평가관리원 산업소재 핵심기술개발사업(과제번호: 10063368)의 지원으로 수행되었으며, 이에 감사드립니다.

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