Study on the mechanical properties,environmental effect,degradation characteristics and ionizing radiation effect on silk reinforced polypropylene/natural rubber composites |
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| Authors: | Quazi TH Shubhra AKMM Alam Mubarak A Khan M Saha Dipti Saha MA Gafur |
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| Affiliation: | 1. Department of Applied Chemistry and Chemical Technology, The University of Dhaka, Dhaka 1000, Bangladesh;2. Nuclear and Radiation Chemistry Division, Institute of Nuclear Science and Technology, Bangladesh Atomic Energy Commission, Dhaka 1000, Bangladesh;3. Fiber & Polymer Division, Dhaka Laboratories, BCSIR, Dhaka, Bangladesh;1. Faculty of Chemical and Natural Resources Engineering, Universiti Malaysia Pahang, Gambang, 26300, Kuantan, Malaysia;2. Institute of Radiation and Polymer Technology, Bangladesh Atomic Energy Commission, Dhaka, Bangladesh;3. Department of Physics, Bangladesh University of Engineering and Technology, Dhaka, 1000, Bangladesh;4. Graduate School of Science and Technology, Shizuoka University, Shizuoka, 422, Japan;1. Chemical and Natural Resources Engineering, Universiti Malaysia Pahang, Gambang 26300, Kuantan, Malaysia;2. Department of Physics, Bangladesh University of Engineering and Technology, Dhaka 1000, Bangladesh;3. Graduate School of Science and Technology, Shizuoka University, Shizuoka 422, Japan;1. Nanomaterials Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Central 5, 1-1-1 Higashi, Tsukuba, 305-8565, Japan;2. Department of Intelligent Interaction Technologies, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan;3. Department of Neurosurgery, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan;1. ICube, Université de Strasbourg, CNRS, 2-4 rue Boussingault, 67000 Strasbourg, France;2. LPMT – ENSISA, Université de Haute Alsace, Mulhouse, 11 rue Alfred Werner, 68093 Mulhouse, France;3. LMGC, Univ. Montpellier, CNRS, Montpellier, France;4. Cetim-Cermat, 21 Rue de Chemnitz, 68200 Mulhouse, France;5. Institut de Science des Matériaux de Mulhouse (IS2M), UMR 7361, 15 Jean Starcky, 68057 Mulhouse, France |
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| Abstract: | Natural silk fiber (20%) reinforced polypropylene (PP) composites were prepared by compression molding. Tensile strength, tensile modulus, bending strength, bending modulus, impact strength and hardness of the prepared composite were found 54.7 MPa, 1826.2 MPa, 58.3 MPa, 3750.7 MPa, 17.6 kJ/m2 and 95 shore A, respectively. To improve the biodegradable character of the composite, natural rubber (NR) was blended (10%, 25%, 50% by weight) with PP. It was found that the mechanical properties of the composite decrease with increasing NR in PP (except IS which increased rather decreasing). Environmental effect on the composite and degradation in various media were investigated in this study. Gamma radiation was used to increase the mechanical properties of the prepared composites. Increase in TS and BS were maximum at 250 krad dose for silk fiber/PP, silk fiber/PP:NR (90:10), silk fiber/PP:NR (75:25) and silk fiber/PP:NR (50:50) composites. |
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