화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of the Korean Industrial and Engineering Chemistry, Vol.11, No.5, 512-516, August, 2000
Export Citation
폴리프로필렌/몬모릴로나이트의 박리형 나노복합재료 제조
Preparation of Polypropylene/Montmorillonite Exfoliated Nanocomposite
유성구, 이영철1, 서길수†
  • 영남대학교 공과대학 응용화학공학부, 경산 712-749
  • 1한국생산기술연구원 화학/생물기술연구팀, 천안 330-820
Sung Gyu Lyu, Young Chul Lee1, and Gil Soo Sur†
  • School of Chemical Engineering and Technology, Yeungnam University, Kyongsan 712-749, Korea
  • 1Chemical & Bio Technology Team, Korea Institute of Industrial Technology, Chonan 330-820, Korea
E-mail:
초록
친유기성 montmorillonite (MMT)를 Na+-MMT와 옥타데실트리메칠암모늄 브로마이드와의 이온교환반응으로 제조하였다(ODTMA-MMT). Na+-MMT의 실리케이트 층간거리는 12.2Å이여, 제조된 ODTMA-MMT의 실리케이트 층간거리는 21.3Å이였다. 그리고 MMT의 층간에 아민기를 도입하기 위하여 3-aminopropyltriethoxy silane(APS)를 ODTMA-MMT에 삽입하였다(APS-MMT). 그러나 삽입된 APS에 의한 MMT의 층간거리는 변화가 없었다. PP/MMT 박리형 나노복합재료를 제조하기 위하여 APS-MMT를 polyporpylene-graft-maleicanhydrid와 반응시킨 후(PP-MMT), 폴리프로필렌과 PP-MMT를 200℃에서 8분동안 Brabender로 혼합하였다. 이것을 XRD와 TEM으로 확인한 결과 단일층의 실리케이트가 폴리프로필렌 메트릭스에 분산되어 있음을 확인하였다.
An organically modified layered silicate (ODTMA-MMT) was prepared by an ion-exchange reaction of sodium montmorillonite and octadecyl trimethylammonium bromide. The interlayer spacing of the sodium montmorillonite was 12.2Å, while that of the ODTMA-MMT was 21.3Å. The amine group of modified MMT (APS-MMT) was prepared by the intercalation of 3-aminopropyltriehoxysilane (APS) into ODTMA-MMT. The intercalated APS had no effect on the d-spacing values between silicate layers. To prepare the PP/MMT exfoliated nanocomposite, APS-MMT was reacted with polypropylene-graft-maleicanhydride (PP-MMT) and then PP was melt-mixed with PP-MMT at 200℃ for 8 min by using a Brabender mixer. From the results of XRD and TEM, it was found that the monolayer silicate was dispersed in PP matrix.
Keywords:sodium montmorillonite;polypropylene;intercalation;nanocomposite;exfoiation
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