Tailoring of interface of polypropylene/polystyrene/carbon nanofibre composites by polystyrene-block-poly(ethylene-ran-butylene)-block-polystyrene |
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| Institution: | 1. Department of Polymer Science and Rubber Technology, Cochin University of Science and Technology, Cochin 682022, Kerala, India;2. Department of Chemistry, Government College Kottayam, Kerala, 686013, India;3. Department of Chemistry, Mar Thoma College, Tiruvalla, Kerala, India;4. Department of Materials and Production Engineering, The Sirindhorn International Thai-German Graduate School of Engineering (TGGS), King Mongkut''s University of Technology North Bangkok, Bangsue, Bangkok 10800, Thailand;5. Carbon Nexus, Institute for Frontier Materials, Deakin University, Geelong, VIC 3216, Australia;1. School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China;2. Chongqing Academy of Science and Technology, Chongqing 401123, China;1. Department of Mechanical Engineering, Shahid Rajaee Teacher Training University, Tehran 1678815811, Iran;2. Department of Materials Engineering, Shahid Rajaee Teacher Training University, Tehran 1678815811, Iran |
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| Abstract: | Mechanical and physical properties of polypropylene (PP)/polystyrene (PS) blend, PP/PS/polystyrene-block-poly(ethylene-ran-butylene)-block-polystyrene (SEBS) ternary blend and their composites with carbon nanofibers (CNF) were investigated. Composites of ternary blend exhibited superior properties compared to those of binary blends. Mechanical performance of nanocomposites was intimately related to their phase morphology. PP/PS/SEBS/0.1 wt% CNF hybrid composites exhibited excellent impact strength (Four-fold increase compared to PP/PS blend) and ductility (12-fold increase in elongation at break, with respect to PP/PS blend). Moreover, these composites displayed good tensile strength and modulus (15% increase in Young's modulus, compared to PP/PS/SEBS blend) and are suitable for various end-use applications including automobile applications. Although crystallinity of PP phase is decreased by the incorporation of CNF, thermal stability of the composites remained almost unaffected. Contact angle measurements revealed that ternary composites exhibited maximum hydrophobicity. |
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