A study on the compatibility and physical properties of chlorinated polyethylene rubber/nitrile rubber blends

Authors

  • Zhen Xiu Zhang,

    1. Key Laboratory of Rubber-Plastics, Qingdao University of Science and Technology, Ministry of Education, Qingdao 266042, People's Republic of China
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  • Chun Hua Chen,

    1. Key Laboratory of Rubber-Plastics, Qingdao University of Science and Technology, Ministry of Education, Qingdao 266042, People's Republic of China
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  • Xin Wen Gao,

    1. Key Laboratory of Rubber-Plastics, Qingdao University of Science and Technology, Ministry of Education, Qingdao 266042, People's Republic of China
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  • Jin Kuk Kim,

    1. School of Nano and Advanced Materials Engineering, Gyeongsang National University, Gyeongnam, Jinju 660-701, South Korea
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  • Zhen Xiang Xin

    Corresponding author
    1. Key Laboratory of Rubber-Plastics, Qingdao University of Science and Technology, Ministry of Education, Qingdao 266042, People's Republic of China
    • Key Laboratory of Rubber-Plastics, Qingdao University of Science and Technology, Ministry of Education, Qingdao 266042, People's Republic of China
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Abstract

The miscibility and some physicomechanical characteristics of chlorinated polyethylene rubber (CPE) and nitrile rubber (NBR) blends have been investigated. Calculation of the heat of mixing, differential scanning calorimetry, and scanning electron microscopy analysis showed that CPE was miscible with NBR in all proportions. The cure and scorch times decreased with the increase in NBR content, whereas the maximum torque increased. The tensile strength, 100% modulus, elongation at break, tear strength, and compression set decreased with increasing of NBR content. After aging, hardness and tensile strength increased, and there was no drastic change in elongation at break on aging. The thermal aging resistance and the abrasion resistance of NBR are improved after blending with CPE, but the oil resistance decreased. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2011

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