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Language: korean

Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received March 29, 2010
Accepted May 23, 2010

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Aminosilane Terminated 수분산 폴리우레탄 코팅 용액의 제조 및 특성

Preparation and Properties of Aminosilane Terminated Waterborne Polyurethane

신용탁 홍민기 최진주 이원기¹ 이경배¹ 유병원¹ 이명구² 송기창^†

Yong Tak Shin Min Gi Hong Jin Joo Choi Won Ki Lee¹ Gyoung Bae Lee¹ Byung Won Yoo¹ Myung Goo Lee² Ki Chang Song^†

건양대학교 화공생명학과, 320-711 충남 논산시 내동 26 ¹한진화학주식회사 기술연구소, 437-801 경기도 의왕시 고천동 333 ²나노스피어(주), 445-872 경기도 화성시 송산면 중송리 95-3

Department of Chemical and Biochemical Engineering, Konyang University, 26 Nae-dong, Nonsan-si, Chungnam 320-711, Korea ¹Technical Research Institute, Hanjin Chemical Co., LTD, 333 Gocheon-dong, Uiwang-si, Gyeonggi 437-801, Korea ²Nanosphere Co., LTD, 95-3 Jongsong-ri, Sonsan-myeon, Hwaseong-si, Gyeonggi 445-872, Korea

Korean Chemical Engineering Research, August 2010, 48(4), 434-439(6), NONE Epub 8 September 2010

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Abstract

Isophorone diisocyanate(IPDI), poly(tetramethyleneglycol)(PTMG), dimethylol propionic acid(DMPA)를 출발물질로 하여 NCO terminated prepolymer가 합성되었다. 이 prepolymer의 NCO기를 silane으로 capping하기 위해 0~0.02 mole로 첨가량이 조절된 aminopropyl triethoxysilane(APS)이 첨가되었다. 제조된 용액의 평균 입경은 APS의 첨가량이 증가함에 따라 증가하였다. 또한 제조된 코팅 필름의 연필 경도 및 열적안정성은 순수한 수분산 폴리우레탄보다 우수하였다.

NCO terminated polyurethane prepolymers were synthesized from isophorone diisocyanate(IPDI), poly (tetramethyleneglycol)(PTMG) and dimethylol propionic acid(DMPA). Subsequently, aminosilane terminated prepolymers were prepared by capping the NCO groups of polyurethane prepolymers with different moles of aminopropyl triethoxysilane(0~0.02 mole) as a coupling agent. The average particle size of the silylated polyurethane solutions increased with increasing APS content. Also, the prepared coating films showed better thermal stability and pencil hardness than pure waterborne polyurethane.

Keywords

Waterborne Polyurethane Aminopropyl Triethoxysilane Silane Terminated Polyurethane

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