Experimental Study of Mechanical Properties of Polypropylene Random Copolymer and Rice-Husk-Based Biocomposite by Using Nanoindentation

Fahad Ali Rabbani, Saima Yasin, Tanveer Iqbal, U. Farooq

Research output: Contribution to journalArticleScientificpeer-review

4 Citations (Scopus)
107 Downloads (Pure)

Abstract

Nanoindentation is widely used to investigate the surface-mechanical properties of biocomposites. In this study, polypropylene random copolymer (PPRC) and biowaste rice husk (BRH) were used as the main raw materials, and glass-fiber-reinforced polypropylene and talc were also used with BRH to enhance the mechanical characterization of the biocomposites. The interfacial bonding between the polymer and the rice husk was increased by treating them with maleic anhydride and NaOH, respectively. The results obtained from the nanoindentation indicated that the plastic behavior of the biocomposites was prominent when untreated BRH was used and vice versa. The modulus and hardness of the biocomposite improved by 44.8% and 54.8% due to the neat PPRC, respectively. The tribological properties were studied based on the hardness-to-modulus ratio and it was found that BRH- and talc-based biocomposites were better than other samples in terms of low friction and wear rate. The creep measurements showed that untreated rice husk biocomposite exhibited high resistance to load deformation.
Original languageEnglish
Article number1956
Number of pages14
JournalMaterials
Volume15
Issue number5
DOIs
Publication statusPublished - 2022

Keywords

  • nanoindentation
  • biocomposite
  • polypropylene random copolymer
  • rice husk
  • hardness
  • modulus
  • fiber reinforced composite

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