Tanjung, Faisal A. and Kuswardani, Retna A. and Idumah, Christopher I and Siregar, Januar Parlaungan and Karim, Abdul (2022) Characterization of mechanical and thermal properties of esterified lignin modified polypropylene composites filled with chitosan fibers. Polymers and Polymer Composites, 30. pp. 1-11. ISSN 0967-3911. (Published)
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Characterization of mechanical and thermal properties of esterified lignin modified polypropylene composites filled with chitosan fibers.pdf Available under License Creative Commons Attribution Non-commercial. Download (1MB) | Preview |
Abstract
A comparative study was performed on the use of esterified alkaline lignin (AAL) and esterified organosolv lignin (AOSL) as the interfacial modifying agent to improve the properties of polypropylene-chitosan composites. Chitosan was chemically modified through a reaction with the esterified lignin in an alcohol medium. The composites were prepared using an internal mixer and hot-pressed method. Both modified chitosan showed a different chemical structure upon modification with the esterified lignins as confirmed by Fourier transform infrared spectroscopy spectra. With a lower molecular weight, the AOSL attachment on the chitosan surface resulted in more efficiency in decreasing hydrophilic characters. Tensile tests showed the increased tensile strength by 32.15% and 26.43% for AOSL-modified composites and AAL-modified composites as compared with the unmodified composites. Overall, the AOSL was superior in improving the mechanical strength and thermal stability of the composites, while the AAL exhibited the most apparent enhancement in ductility and crystallization.
| Item Type: | Article |
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| Additional Information: | Indexed by Scopus |
| Uncontrolled Keywords: | Chitosan; Composites; Esterified lignin; Modification; Polypropylene |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) T Technology > TJ Mechanical engineering and machinery |
| Faculty/Division: | College of Engineering |
| Depositing User: | Mr Muhamad Firdaus Janih@Jaini |
| Date Deposited: | 27 Oct 2022 01:13 |
| Last Modified: | 27 Oct 2022 01:13 |
| URI: | http://umpir.ump.edu.my/id/eprint/34957 |
| Download Statistic: | View Download Statistics |
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