Tribology and Materials | Volume 4 | Issue 1 | 2025 | 18-28
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https://doi.org/10.46793/tribomat.2025.002
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Boron nitride nanosheets and silica nanoparticles reinforced polypropylene: Rheological, thermal, mechanical and tribological behaviour
Narava Divya Aparna
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Pankaj Tambe
School of Mechanical Engineering, VIT-AP University, Amaravati, India
Abstract: In recent years, there has been increased attention to
incorporating hybrid filler in polymer matrices to enhance the
properties for various applications. In this work, hybrid fillers of
hexagonal boron nitride (h-BN) nanosheets and silica (SiO2)
nanoparticles are incorporated in a polypropylene (PP) matrix using the
melt mixing method. This study is focused on the rheological, thermal,
mechanical and tribological behaviour of hybrid filler-reinforced
PP-based nanocomposites. The incorporation of hybrid filler in the PP
matrix shows an increase in viscosity compared to individual
filler-reinforced PP due to the finer dispersion of hybrid filler in the
PP matrix. The degree of crystallinity, tensile properties and thermal
stability are the highest for the hybrid filler-reinforced PP-based
nanocomposite. The increase in tensile modulus and tensile strength are
25 and 1 %, respectively. The wear is the lowest for the hybrid
filler-reinforced PP-based nanocomposite.
Keywords:
polypropylene, hybrid fillers, silica nanoparticles, nanocomposites,
h-BN nanosheets.
Received: 22-11-2024, Revised: 31-01-2025, Accepted: 06-02-2025
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) license, which allows users to distribute, remix, adapt,
and build upon the material in any medium or format for non-commercial purposes only, and only so long as attribution is given to the creator.
Abstract: In recent years, there has been increased attention to incorporating hybrid filler in polymer matrices to enhance the properties for various applications. In this work, hybrid fillers of hexagonal boron nitride (h-BN) nanosheets and silica (SiO2) nanoparticles are incorporated in a polypropylene (PP) matrix using the melt mixing method. This study is focused on the rheological, thermal, mechanical and tribological behaviour of hybrid filler-reinforced PP-based nanocomposites. The incorporation of hybrid filler in the PP matrix shows an increase in viscosity compared to individual filler-reinforced PP due to the finer dispersion of hybrid filler in the PP matrix. The degree of crystallinity, tensile properties and thermal stability are the highest for the hybrid filler-reinforced PP-based nanocomposite. The increase in tensile modulus and tensile strength are 25 and 1 %, respectively. The wear is the lowest for the hybrid filler-reinforced PP-based nanocomposite.
Keywords: polypropylene, hybrid fillers, silica nanoparticles, nanocomposites, h-BN nanosheets.
Received: 22-11-2024, Revised: 31-01-2025, Accepted: 06-02-2025
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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) license, which allows users to distribute, remix, adapt, and build upon the material in any medium or format for non-commercial purposes only, and only so long as attribution is given to the creator.