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

Publication history: Received December 1, 2010
Accepted January 4, 2011

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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수분산 폴리우레탄의 물성에 미치는 Pentaerythritol Triacrylate의 첨가 효과

Effect of Addition of Pentaerythritol Triacrylate on the Properties of Waterborne Polyurethane

신용탁 홍민기 최진주 이원기¹ 유병원¹ 이명구² 송기창^†

Yong Tak Shin Min Gi Hong Jin Joo Choi Won Ki 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 ²케이엘텍, 445-872 경기도 화성시 봉담읍 유리 68

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 ²K.L. Tech Co., LTD, 68 Yu-ri, Bongdam-up, Hwaseong-si, Gyeonggi 445-872, Korea

Korean Chemical Engineering Research, August 2011, 49(4), 411-416(6), NONE Epub 3 August 2011

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Abstract

Isophorone diisocyanate(IPDI), polycarbonate diol(PCD), dimethylol propionic acid(DMPA)를 출발물질로 하여 NCO terminated prepolymer가 합성되었다. 이 prepolymer의 NCO기를 아크릴 단량체로 capping하기 위해 0~0.024 mole로 첨가량이 조절된 pentaerythritol triacrylate (PETA)가 첨가되었다. 제조된 acrylic terminated polyurethane 용액의 평균 입경은 PETA의 첨가량이 증가함에 따라 증가하였다. 또한 제조된 코팅 필름의 연필경도 및 내마모성은 순수한 수분산 폴리우레탄보다 우수하였다.

NCO terminated polyurethane prepolymers were synthesized from isophorone diisocyanat(IPDI), polycarbonate diol(PCD) and dimethylol propionic acid(DMPA). Subsequently, acrylic terminated prepolymers were prepared by capping the NCO groups of polyurethane prepolymers with different moles of pentaerythritol triacrylate (0~0.024 moles) as a acrylate monomer. The average particle size of the acrylic terminated polyurethane solutions was increased with increasing PETA contents. Also, the prepared coating films showed better abrasion resistance and pencil_x000D_ hardness than pure waterborne polyurethane.

Keywords

Waterborne Polyurethane Pentaerythritol Triacrylate Acrylic Terminated Polyurethane

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