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Synthesis and Ozone Resistance Characteristic of Fluorine-containing modified Polyurea
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  • Journal title : Korean Chemical Engineering Research
  • Volume 54, Issue 2,  2016, pp.175-180
  • Publisher : The Korean Institute of Chemical Engineers
  • DOI : 10.9713/kcer.2016.54.2.175
 Title & Authors
Synthesis and Ozone Resistance Characteristic of Fluorine-containing modified Polyurea
Kim, Sung Rae; Park, Ji Yong; Lee, Jong Dae;
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The fluorine-containing modified polyurea was synthesized using the PTPE-diol to improve the ozone-resistance. 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.
Perfluoropolyether Diol;Perfluorine Diisocyanate;Polyfluorineurea;Ozone-resistance;
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