화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Polymer(Korea), Vol.39, No.4, 627-634, July, 2015
DOI10.7317/pk.2015.39.4.627  Export Citation
다중벽 탄소나노튜브가 포함된 전기 전도성 아크릴계 점착제의 유화 중합 및 그 물성
Emulsion Polymerization of Electrically Conductive Acrylic Pressure Sensitive Adhesives (EPSAs) Containing Modified MWCNTs and Their Properties
권재범, 박성환, 김성훈, 조지은1, 한창우1, 박경태1, 하기룡†
  • 계명대학교 공과대학 화학공학과
  • 1케이디켐 기술연구소
Jaebeom Kwon, Seonghwan Park, Sunghoon Kim, Jieun Jo1, Changwoo Han1, Kyungtae Park1, and KiRyong Ha†
  • Department of Chemical Engineering, Keimyung University, Daegu 704-701, Korea
  • 1KDChem, Daegu 704-801, Korea
E-mail:
초록
본 연구에서는 개질된 다중벽 탄소나노튜브(MWCNTs)를 충전제로 사용하여 전기 전도성 아크릴계 점착제 제조에 관한 연구를 수행하였다. 황산:질산(3:1 v/v)의 혼산을 사용하여 MWCNTs 표면에 카르복시기를 도입 후, SOCl2와 1,4-butanediol(BD)를 반응시켜 MWCNT-OH를 제조하였다. 제조된 MWCNT-OH에 3-methacryloxypropyltrimethoxylsilane (MPTMS)를 반응시켜 methacrylate기를 도입하였다. 표면 개질된 MWCNT, 2-ethylhexyl acrylate(2-EHA), n-butyl acrylate(n-BA), methyl methacrylate(MMA)와 acrylic acid(AAc)를 단량체로 하여 유화중합법으로 아크릴 점착제를 제조하였다. MWCNT-MPTMS의 함량이 0~0.5 wt%로 증가할수록, 점도, 박리강도 및 점착력은 증가하고, 면 저항값은 낮아지는 것을 확인하였다.
In this study, multi-walled carbon nanotubes (MWCNTs) were oxidized with a mixture of H2SO4:HNO3(3:1 v/v). After oxidation, oxidized MWCNTs were treated with thionyl chloride (SOCl2) and 1,4-butanediol (BD) in sequence at room temperature to introduce hydroxyl groups on the surface of MWCNTs. The prepared MWCNT-OH was silanized with 3-methacryloxypropyltrimethoxylsilane (MPTMS), to introduce polymerizable methacrylate groups to make MWCNT-MPTMS. MWCNT-MPTMS was used for the emulsion polymerization of 2-ethylhexyl acrylate (2-EHA), nbutyl acrylate (n-BA), methyl methacrylate (MMA), and acrylic acid (AAc) as monomers to prepare electrically conductive acrylic pressure-sensitive adhesive (EPSA). We found increase of Tg, viscosity, peel strength and tack and decrease of sheet resistivity with increase of MWCNT-MPTMS contents in EPSA from 0 to 0.5 wt%.
Keywords:MWCNT;silane coupling agent;emulsion polymerization;electrically conductive pressure sensitive adhesive
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