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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/14750
Title: High specific strength hybrid polypropylene composites using carbon fibre and hollow glass microspheres: Development, characterization and comparison with empirical models
Authors: Gogoi R.
Manik G.
Arun B.
Published in: Composites Part B: Engineering
Abstract: Synergistic effect of hollow glass microspheres (HGM) addition on various physical and mechanical properties of short carbon fibre (SCF) reinforced polypropylene (PP) hybrid composites were investigated. Hybrid composite samples were prepared by melt mixing PP, maleic anhydride-grafted-PP (MA-g-PP), SCF and surface-treated HGM. Effect of varying concentration of HGM (0–40 wt%) and SCF (0, 5, 8 wt%) on various physical and mechanical properties was analyzed. HGM showed an impressive positive impact in reducing the overall density of composites with its increasing concentration. Among all the different composite formulations, hybrid composite incorporated with 10 and 8 wt% HGM and SCF showed the highest tensile and flexural strength (up by ∼110 and ∼112% over pure PP). Interestingly, the specific tensile strength with only 8 wt% SCF was observed to be significantly high (∼100 MPa/g/cm3) and similar to commercial PP composites containing much higher (40 wt%) fibre contents. Empirical estimates of tensile modulus evaluated using several available micromechanical models, indicated that a combination of Ishai and Cohen (upper bound) and Halpin-Tsai models which assume a perfect particle- and fibre-matrix interfacial adhesion, are in excellent agreement with results of this investigation. Morphological analysis of cryo-fractured surfaces revealed good dispersion and distribution of both HGM and SCF with very negligible broken HGM fillers. © 2019 Elsevier Ltd
Citation: Composites Part B: Engineering (2019), 173(): -
URI: https://doi.org/10.1016/j.compositesb.2019.05.086
http://repository.iitr.ac.in/handle/123456789/14750
Issue Date: 2019
Publisher: Elsevier Ltd
Keywords: Hollow glass microsphere
Hort carbon fibre
Hybrid polypropylene composite
Micromechanical models
ISSN: 13598368
Author Scopus IDs: 56912086200
56595314900
57210365191
Author Affiliations: Gogoi, R., Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, Paper Mill Road, Saharanpur, UP 247001, India
Manik, G., Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, Paper Mill Road, Saharanpur, UP 247001, India
Arun, B., Technical Department, Innovation Center, 3M India Limited, Electronic City, Bangalore, 560100, India
Funding Details: The authors are grateful to the Ministry of Human Resource Development (MHRD), Government of India for the financial support. Appendix A
Corresponding Author: Manik, G.; Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, Paper Mill Road, India; email: manikfpt@iitr.ac.in
Appears in Collections:Journal Publications [PE]

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