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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 October 5, 2015
Accepted November 10, 2015

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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불소계 변성 폴리우레아의 합성 및 오존저항 특성

Synthesis and Ozone Resistance Characteristic of Fluorine-containing modified Polyurea

김성래^{1 2} 박지용¹ 이종대^1†

Sung Rae Kim^{1 2} Ji Yong Park^{1 3} Jong Dae Lee^{1 3†}

¹충북대학교 화학공학과, 28644 충청북도 청주시 서원구 충대로 1 ²한국건설생활환경시험연구원 28115 충청북도 청주시 청원구 오창읍 양청리 654-1

¹Department of Chemical Engineering, Chungbuk National University, 1, Chungdearo, Seowon-gu, Cheongju, Chungbuk, 28644, Korea ²Korea Conformity Laboratories, 654-1, Yangcheong-ri, Ochang-eup, Cheongwon-gu, Cheongju, Chungbuk, 28115, Korea ³, Korea

jdlee@chungbuk.ac.kr

Korean Chemical Engineering Research, April 2016, 54(2), 175-180(6), 10.9713/kcer.2016.54.2.175 Epub 5 April 2016

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Abstract

본 연구에서는 내 오존성을 향상시키기 위해 PFPE-diol을 도입하여 불소계 변성 폴리우레아를 합성하였다. 불소 함량에 따라 변성 폴리 우레아(PFDIA-10C, PFDIA-20C, PFDIA-30C)를 제조하였으며 각각의 폴리우레아는 불소를 10 wt%~30 wt% 포함하였다. 제조된 도막의 오존처리 전 후 질량변화를 조사하였고, 도막의 경도, 내마모성, 인장성능 그리고 신장율 등의 물성을 분석하였다. 또한 내 오존성 테스트(10 ppm, 336 h)후에 광학현미경을 통해 도막표면을 관찰한 결과 PFPE-diol의 함량이 20 wt% 이상 일 때 균열, 탈색 그리고 질량감소량에서 양호한 결과를 보여주어 도막의 내 오존성이 향상되었음을 알 수 있었다. FT-IR 분석을 통해 PFDIA 합성물의 O-H 피크가 불소 함량 증가함에 따라 감소하는 것을 확인하였다.

The fluorine-containing modified polyurea was synthesized using the PTPE-diol to improve the ozoneresistance. Three types (PFDIA-10C, PFDIA-20C, PFDIA-30C) of the modified polyurea containing the fluorine content from 10 wt% to 30 wt% were prepared. After ozone treatment on the prepared films, the weight loss of film was investigated and analyzed the film properties such as hardness, wear resistance, tensile stress, elongation, etc. Also, the film surfaces were observed by the optical microscopy after ozone-resistance tests at 10 ppm for 336 h. It was shown that the defects such as the cracking, the bleaching and the mass loss were reduced and the ozone-resistance of films were improved when the contents of PFPE-diol are more than 20 wt%. It was found that the intensity of O-H peak in PFDIA compounds confirmed by FT-IR was decreased as fluorine contents were increasing.

Keywords

Perfluoropolyether Diol Perfluorine Diisocyanate Polyfluorineurea Ozone-resistance

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