Cure characteristics and properties of NBR composites filled with co‐precipitates of black liquor and montmorillonite |
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| Authors: | Zedong Liao Xi Wang Yuanhua Xu Jianxiang Feng Jin Zhu Shengpei Su |
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| Affiliation: | 1. Key Lab of Sustainable Resources Processing and Advanced Materials of Hunan Province, Hunan Normal University, , Changsha, 410081 Hunan, China;2. Polymers and Composites Division, Ningbo Institute of Material Technology & Engineering Chinese Academy of Science, , Ningbo, 315201 Zhejiang, China;3. College of Chemistry and Chemical Engineering, Hunan Normal University, , Changsha, 410081 China |
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| Abstract: | Acrylonitrile‐butadiene rubber (NBR) composites filled with co‐precipitates of black liquor and montmorillonite (CLM) were prepared by mechanical mixing on a two‐roll mill. The cure characteristics, mechanical properties, thermal properties, and thermo‐oxidative aging properties of NBR/CLM composites were evaluated. Scanning electron microscopy and transmission electron microscopy showed that the filler particles were well dispersed in the NBR/CLM composites. The scorch time and optimum cure time increase with increasing filler loading. A remarkable enhancement in tensile strength, elongation at break, 300% modulus, and shore “A” hardness was also observed. When the loading of CLM was 40 parts per hundred rubbers, it showed about seven times increase in tensile strength, about 1.8 times increase in elongation at break, about three times increase in 300% modulus, and about 1.3 times increase in shore A hardness, respectively, as compared with those of pure cured NBR. Thermal properties and thermal oxidative aging properties, in general, were also improved with loading of this novel filler. Copyright © 2011 John Wiley & Sons, Ltd. |
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| Keywords: | acrylonitrile‐butadiene rubber black liquor montmorillonite cure characteristics mechanical properties |
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