Morphology and properties of poly(vinylidene fluoride)/silicone rubber blends |
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| Authors: | Yanpeng Wang Liming Fang Chuanhui Xu Zhonghua Chen Yukun Chen |
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| Affiliation: | 1. The Key Laboratory of Polymer Processing Engineering, Ministry of Education, China (South China University of Technology), Guangzhou, China;2. School of Materials Science and Engineering, South China University of Technology, Guangzhou, China;3. School of Chemistry and Chemical Engineering, Guangxi University, Nanning, China;4. School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou, China |
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| Abstract: | Blends of poly(vinylidene fluoride) (PVDF) and silicone rubber (SR) were prepared through melt mixing. The morphology, rheology, crystallization behavior, mechanical properties, dynamic mechanical properties and thermal properties of the PVDF/SR blends were investigated. The blend with 9 wt % of SR showed spherical shape of disperse phase whereas the blend with 27 wt % of SR resulted in irregular shape of rubber phase. The rheology showed that the complex viscosity and storage modulus of the blends decreased with increasing the SR content. The mechanical properties of the blends were decreased with increasing the SR content but that were significantly improved after dynamical vulcanization. The crystallization temperature of PVDF phase in PVDF/SR blends was increased. The incorporation of SR improved the thermal stability of PVDF/SR blends, and the temperature at 10% mass loss of the blends increased to about 489°C compared with 478°C of the pure PVDF. The mass of residual char in experiment of the blends was lower than that obtained in theory. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014 , 131, 39945. |
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| Keywords: | blends morphology rheology thermogravimetric analysis |
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