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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 January 4, 2011
Accepted January 31, 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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아크릴 단량체 종류 변화가 수분산 Polyurethane Dispersion의 물성에 미치는 영향

Effect of Types of Acrylate Monomers on the Properties of Waterborne Polyurethane Dispersion

신용탁 홍민기 김병석 이원기¹ 유병원¹ 이명구² 송기창^†

Yong Tak Shin Min Gi Hong Byung Suk Kim 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, 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-eup, Hwaseong-si, Gyeonggi 445-872, Korea

Korean Chemical Engineering Research, October 2011, 49(5), 548-553(6), NONE Epub 30 September 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 다양한 아크릴 단량체인 2-hydroxyethyl methacrylate(HEMA), 2-hydroxyethyl acrylate(HEA), pentaerythritol triacrylate(PETA)가 첨가되었다. 제조된 용액의 평균 입경은 아크릴 단량체가 첨가되면서 증가하였다. 또한 제조된 코팅 막의 연필경도 및 내마모성은 순수한 수분산 폴리우레탄보다 우수하였으며, 아크릴 단량체 중에서 PETA가 가장 우수한 물성을 보였다.

NCO terminated polyurethane prepolymers were synthesized from isophorone diisocyanat(IPDI), polycarbonate diol(PCD) and dimethylol propionic acid(DMPA). Subsequently, acrylic terminated polyurethanes were prepared by capping the NCO groups of polyurethane prepolymers with different types of acrylate monomers, such as 2-hydroxyethyl methacrylate(HEMA), 2- hydroxyethyl acrylate(HEA) and pentaerythritol triacrylate(PETA). The average particle sizes of the acrylic terminated polyurethane solutions were increased by capping acrylate monomers. Also, the prepared coating films showed better abrasion resistance and pencil hardness than those of pure waterborne polyurethanes. The coating film with PETA exhibited the best abrasion resistance and pencil hardness of coating films prepared with three acrylate monomers.

Keywords

Waterborne Polyurethane 2-Hydroxyethyl Methacrylate 2-Hydroxyethyl Acrylate Pentaerythritol Triacrylate Acrylic Terminated Polyurethane

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