화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.19, No.6, 2079-2084, November, 2013
DOI10.1016/j.jiec.2013.03.022  Export Citation
A novel whitening test method of a sulfur-cured EPDM composite filled with carbon black in calcium cation solution
Sung-Seen Choi†, and Hye-Seung Chung
  • Department of Chemistry and Sejong Polymer Research Center, Sejong University, 98 Gunja-dong, Gwangjin-gu, Seoul 143-747, Republic of Korea
E-mail:
A simple and efficient whitening test method of a carbon black-filled sulfur-cured EPDM composite by formation of calcium stearate was established using Ca2+ solution and convenient analytical techniques. The sample was aged in 0.1 M CaCl2 solution at 30-90 ℃ for 1 and 3 days. ATR-FTIR spectra of the aged sample surfaces displayed unique calcium stearate peaks. Level of the whitening of a rubber article can be determined by analysis of the cross section of the aged sample using an image analyzer and by analysis of calcium stearate on the aged sample surface using an ATR-FTIR.
Keywords:EPDM;Whitening;Aging;Calcium stearate;ATR-FTIR;Image analysis
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