Effect of Silver Nanopowder on Mechanical, Thermal and Antimicrobial Properties of Kenaf/HDPE Composites.

Vikneswari Sanmuham,Ain Umaira Md Shah,Syafiqah Nur Azrie Safri,Adi Azriff Basri,A M Radzi,Ahmad Adlie Shamsuri,Mohamed Thariq Hameed Sultan

doi:10.3390/polym13223928

Vikneswari Sanmuham, Ain Umaira Md Shah + Show 5 more

Open Access

https://doi.org/10.3390/polym13223928

Copy DOI

Abstract

This study aims to investigate the effect of AgNPs on the mechanical, thermal and antimicrobial activity of kenaf/HDPE composites. AgNP material was prepared at different contents, from 0, 2, 4, 6, 8 to 10 wt%, by an internal mixer and hot compression at a temperature of 150 °C. Mechanical (tensile, modulus and elongation at break), thermal (TGA and DSC) and antimicrobial tests were performed to analyze behavior and inhibitory effects. The obtained results indicate that the effect of AgNP content displays improved tensile and modulus properties, as well as thermal and antimicrobial properties. The highest tensile stress is 5.07 MPa and was obtained at 10wt, TGA showed 10 wt% and had improved thermal stability and DSC showed improved stability with increased AgNP content. The findings of this study show the potential of incorporating AgNP concentrations as a secondary substitute to improve the performance in terms of mechanical, thermal and antimicrobial properties without treatment. The addition of AgNP content in polymer composite can be used as a secondary filler to improve the properties.

Highlights

Nowadays, nanotechnology is growing rapidly in the food and manufacturing industries for its effectiveness in terms of heat resistance and antimicrobial agents on products.The use of nanoparticles on composites brings advantages, especially in the aspect of dispersion
5 and 6 with show the tensile stress and modulus properties of modulus show Figures an increase increasing contents compare to w kenaf/High-Density Polyethylene (HDPE) composites with the different AgNP contents
Of AgNPs is lesser (129.97 °C) than kenaf/HDPE composites with 10 wt% of AgNPs

Summary

Introduction

The use of nanoparticles on composites brings advantages, especially in the aspect of dispersion. An increase in the nanoparticle content will reduce the hydrophobic properties and increase the mechanical, physical and thermal properties [1]. Due to their small size, these materials can interact with cellulose and disperse in composite systems. As written by Theodore et al [2], the supermolecular structure of biopolymers contributes to the moisture absorption into cellulose, hemicelluloses and lignin. Nanoparticle usage in order to modify the surface of the lignocellulose-based composite can contribute to physical or chemical barriers to control the accumulation of moisture

Objectives

Methods

Results

Conclusion