The behavior of natural rubber–epoxidized natural rubber–silica composites based on wet masterbatch technique |
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| Authors: | Yueqiong Wang Lusheng Liao Jieping Zhong Dongning He Kui Xu Changjin Yang Yongyue Luo Zheng Peng |
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| Affiliation: | 1. Agricultural Products Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang, People's Republic of China;2. Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences, Danzhou, People's Republic of China;3. School of Science, Guangdong Ocean University, Zhanjiang, People's Republic of China;4. Centre of Excellence in Engineered Fibre Composites, University of Southern Queensland, Toowoomba, Australia |
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| Abstract: | Natural rubber–epoxidized natural rubber–silica composites were prepared by the wet masterbatch technique and the traditional dry mixing method. Performances of the composites based on different preparation methods were investigated with a moving die rheometer, an electronic universal testing machine, a dynamic mechanical analyzer, a nuclear magnetic resonance crosslink density analyzer, a rubber processing analyzer (RPA), a scanning electron microscope (SEM), and a transmission electron microscope (TEM). The RPA, SEM, and TEM analyses indicated that silica has better dispersion, lower filler–filler interaction, and better filler–rubber interaction in compounds based on the wet masterbatch technique, leading to improvements in mechanical strength and the dynamic mechanical and compression properties of the composites. It also indicates that composites prepared by the wet masterbatch technique have shorter scorch time, faster curing velocity, and higher crosslink density. The composites prepared by the wet materbatch technique also have lower rolling resistance, which is an important property for their use as a green material for the tire industry. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016 , 133, 43571. |
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| Keywords: | composites mechanical properties rubber |
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