The Effects of Different Fillers on Mechanical and Morphological Properties of SBR/CRr Blends

Abstract:

This research deals with the effects of different fillers of styrene butadiene rubber/recycled chloroprene rubber/carbon black (SBR/CRr/CB) blends and styrene butadiene rubber/recycled chloroprene rubber/calcium carbonate (SBR/CRr/CaCO₃) blends on mechanical and morphological properties. The range size of CRr used in this study was 181 – 549 μm. Both SBR/CRr/CB blends and SBR/CRr/CaCO₃ were prepared using a two roll mill at room temperature with blend ratios 95/5, 85/15, 75/25, 65/35 and 50/50. It can be observed that, tensile strength, E_b and rebound resilience of SBR/CRr/CB blends and SBR/CRr/CaCO₃ blends decreased with increasing CRr content in both blends. However, M100 increased with increasing CRr content in both blends. The scanning electron microscopy (SEM) of the tensile fractured surface of SBR/CRr/CB blends illustrates better adhesion between CB and SBR matrix compared to SBR/CRr/CaCO₃ blends at all blend ratios.Keywords: styrene butadiene rubber, recycled chloroprene rubber, mechanical properties, SEM

• Periodical: Applied Mechanics and Materials (Volumes 754-755)
• Pages: 3-7
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.754-755.3
• Online since: April 2015
• Authors: Ahmad Azrem Azmi, Nik Noriman Zulkepli, MOHD FIRDAUS OMAR, Hussin Kamarudin
• Keywords: Mechanical Properties, Recycled Chloroprene Rubber, SEM, Styrene Butadiene Rubber

References

[1] Bezeredi, A., Demjen, Z., & Pukanszky, B. (1998). Fracture resistance of particulate filed polypropylene. Die Angewande Makromuleculare Chemie., 256, 61-68.

[2] Nakamura, Y., Okabe, S., Iida, T., Nagata, K., & Nigo, H. (1999). Mechanical properties of poly(vinyl chloride) filled with silica particles. Polym. Comp., 7(1), 33-40.

[3] Findik, F., Yilmaz, R., & Köksal, T. (2004). Investigation of mechanical and physical properties of several industrial rubbers. Materials & design, 25(4), 269-276.

DOI: 10.1016/j.matdes.2003.11.003

[4] Nasir, M., & Teh, G. K. (1988). The effects of various types of crosslinks on the physical properties of natural rubber. European polymer journal, 24(8), 733-736.

DOI: 10.1016/0014-3057(88)90007-9

[5] Ogunniyi, D. S. (1989). Calcium carbonates as filler in rubbers. Pastics and Rubber International, 14(6), 22-25.

[6] Mujkanović, A., Vasiljević, L., & Ostojić, G. (2009). Non-black fillers for elastomers. In 13th International Research/Expert Conference Trends in the Development of Machinery and Associated Technology,. Hammamet, Tunisia.

[7] Skelhorn, D. A. (1997). Calcium carbonate's application in rubber. Rubber world, 216(1), 32-34.

[8] Sobhy, M. S., El-Nashar, D. E., & Maziad, N. A. (2003). Cure characteristics and physicomechanical properties of calcium carbonate reinforcement rubber composites. Egypt. J. Sol, 26(2), 241-257.

DOI: 10.21608/ejs.2003.150162