Citation
Abstract
This study promotes the use of nanobiochar (NBC) as an environmentally friendly substitute to conventional fillers to improve various properties of biopolymers such as their mechanical strength, thermal stability and crystallization properties. TGA analysis showed a slight increase in onset thermal degradation temperature of the composites by up to 5 °C with the addition of 4 wt% NBC. Non-isothermal DSC analysis determined that the addition of NBC into PHBHHx increases the crystallization temperature and degree of crystallinity of PHBHHx while isothermal DSC analysis demonstrated higher crystallization rate in PHBHHx/NBC composited by up to 54%. PHBHHx incorporated with NBC also exhibited superior tensile strength and modulus versus neat PHBHHx. Increase in mechanical strength was further proven via DMA where PHBHHx/NBC composites maintained higher storage modulus at higher temperatures when compared to neat PHBHHx. PHBHHx/NBC also exhibited no cytotoxicity effect against HaCat cells. This study demonstrates the ability of biochar to act as both nucleating agents and reinforcing agents in biodegradable polymers such as PHBHHx, which could be suitable for packaging application.
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Official URL or Download Paper: https://pubs.rsc.org/en/content/articlelanding/202...
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Additional Metadata
Item Type: | Article |
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Divisions: | Faculty of Biotechnology and Biomolecular Sciences Institute of Tropical Forestry and Forest Products |
DOI Number: | https://doi.org/10.1039/d3ra08721b |
Publisher: | Royal Society of Chemistry |
Keywords: | Biochar; Biocomposites; Biopolymers; Green materials; Nucleating agents; Polyhydroxyalkanoates; Reinforcing agents |
Depositing User: | Ms. Azian Edawati Zakaria |
Date Deposited: | 14 Nov 2024 02:52 |
Last Modified: | 14 Nov 2024 02:52 |
Altmetrics: | http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1039/d3ra08721b |
URI: | http://psasir.upm.edu.my/id/eprint/113636 |
Statistic Details: | View Download Statistic |
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