화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Chemical Engineering Research, Vol.49, No.3, 285-291, June, 2011
Export Citation
실란커플링제 종류 변화가 수분산 폴리우레탄의 특성에 미치는 영향
Effect of Types of Silane Coupling Agents on the Properties of Waterborne Polyurethane
신용탁, 황지현, 홍민기, 최진주, 이원기1, 이경배1, 유병원1, 이명구2, 송기창†
  • 건양대학교 화공생명학과, 320-711 충남 논산시 내동 26
  • 1한진화학주식회사 기술연구소, 437-801 경기도 의왕시 고천동 333
  • 2케이엘텍, 445-902 경기도 화성시 봉담읍 유리 68
Yong Tak Shin, Ji Hyeon Hwang, Min Gi Hong, Jin Joo Choi, Won Ki Lee1, Gyoung Bae Lee1, Byung Won Yoo1, Myung Goo Lee2, and Ki Chang Song†
  • Department of Chemical and Biochemical Engineering, Konyang University, 26 Nae-dong, Nonsan, Chungnam 320-711, Korea
  • 1Technical Research Institute, Hanjin Chemical Co., LTD, 333 Gocheon-dong, Uiwang-si, Gyeonggi 437-801, Korea
  • 2KL Tech., 68 Yu-ri, Bongdam eup, Hwaseong-si, Gyeonggi 445-902, Korea
E-mail:
초록
Isophorone diisocyanate(IPDI), poly(tetramethylene glycol)(PTMG), dimethylol propionic acid(DMPA)를 출발물질로 하여 NCO terminated prepolymer가 합성되었다. 이 prepolymer의 NCO기를 실란으로 capping하기 위해 다양한 실란커플링제인 methyltrimethoxysilane(MTMS), glycidoxypropyl trimethoxysilane(GPTMS), methacryloxypropyl trimethoxysilane(MPTMS), aminopropyl triethoxysilane(APS)이 첨가되었다. 제조된 용액의 평균 입경은 실란커플링제가 첨가되 면서 증가하였다. 또한 실란커플링제인 GPTMS, MPTMS, APS의 첨가는 코팅 막의 연필경도를 향상시킬 수 있었으나, MTMS의 첨가는 코팅 막의 연필경도를 향상시킬 수 없었다.
NCO terminated polyurethane prepolymers were synthesized from isophorone diisocyanat(IPDI), poly(tetramethylene glycol)(PTMG) and dimethylol propionic acid(DMPA). Subsequently, waterborne polyurethanes were prepared by capping the NCO groups of polyurethane prepolymers with different types of silane coupling agents, such as methyltrimethoxysilane(MTMS), glycidoxypropyl trimethoxysilane(GPTMS), methacryloxypropyl trimethoxysilane (MPTMS) and aminopropyl triethoxysilane(APS). The average particle size of the waterborne polyurethane solutions was increased by adding silane coupling agents. Also, the coating films prepared from GPTMS, MPTMS and APS, exhibited better pencil hardness than those from pure waterborne polyurethane. On the other hand, the coating films from MTMS did not show an improved pencil hardness than those from pure waterborne polyurethane.
Keywords:Waterborne Polyurethane;Methyltrimethoxysilane;Glycidoxypropyl Trimethoxysilane;Methacryloxypropyl Trimethoxysilane;Aminopropyl Triethoxysilane
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