화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of the Korean Industrial and Engineering Chemistry, Vol.15, No.2, 211-215, April, 2004
Export Citation
개질 벤토나이트를 이용한 에폭시 수지 나노복합재료의 기계적 특성
Mechanical Characteristics of Epoxy Nanocomposite with Modified Bentonite
이재영, 최형기1, 최철호2, 이홍기3, †
  • 일본 산업기술종합연구소 고분자기반기술연구센타, 도쿄 1350-0064
  • 1산업자원부 국립기술표준원 생물환경과, 과천 427-716
  • 2산업자원부 국립기술표준원 국제표준협력과, 과천 427-716
  • 3우석대학교 화학공학과, 전북 565-701
Jae-Young Lee, Hyeong-Ki Choi1, Choul-Ho Choi2, and Hong-Ki Lee3, †
  • Tokyo Waterfront Research Center of Macromolecular Technology, National Institute of Advanced Industrial Science and Technology, Tokyo 1350-0064, Japan
  • 1Division of Biotechnology & Environmental Engineering, Agency for Technology & Standards, MOCIE, Gwacheon 427-716, Korea
  • 2Division of International Standard Cooperation, Agency for Technology & Standards, MOCIE, Gwacheon 427-716, Korea
  • 3Department of Chemical Engineering, Woosuk University, Chonbuk 565-701, Korea
E-mail:
초록
Ca-형 천연 벤토나이트를 정제하고, Na-형으로 개질한 후, 다양한 종류의 아민 및 알킬암모늄염 유기화제로 처리하여서 에폭시 수지에 도입하였다. 벤토나이트 실리케이트 층의 박리현상을 연구하기 위해서X-선회절(XRD) 및 투과전자현미경(TEM) 분석을 하였다. 제조된 에폭시/유기화 벤토나이트 나노복합재료의 유리전이 온도(Tg), 인장강도, Young의 탄성율, 굴곡강도 및 굴곡탄성율을 측정하였다. 유기화제 알킬기의 사슬길이가 증가함에 따라서 실리케이트 층의 박리가 더 잘 일어남으로써 나노복합재료 형성에 더 유리하였고, 나노복합재료가 형성된 계에서는 유기화 벤토나이트의 함량이 증가함에 따라서 모든 물성들이 향상되었다.
Na-type bentonite prepared by purifying and modifying the Ca-type natural bentonite was treated with various types of amines or alkylammonium salts, and incorporated into epoxy resin system. To investigate the exfoliation of silicate interlayer of bentonite, X-ray diffraction (XRD) and transmission electron microscope (TEM) analyses were performed. The glass transition temperature (Tg), tensile strength, Young's modulus, and flexural strength and modulus for the synthesized epoxy/organobentonite were also measured. The longer the chain length of alkyl group in the organosurfactants was, the easier exfoliation of silicate interlayers took place, and the better nanocomposite was given. In the synthesized nanocomposites, all the properties were improved as the loading content of organobentonite increased.
Keywords:nanocomposite;natural bentonite;epoxy;tensile test;flexural test
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