Thermal Characterizations of HPMC/PVA Impregnated with CNC Electrospun Nanofibers

• Main Authors: Etdal, Bakhiet, Siti Fazira, Samsudin, Farah Hanani, Zulkifli, Aizi Nor Mazila, Ramli
• Format: Article
• Published: Trans Tech Publications Ltd, Switzerland 2020
• Subjects: Q Science (General)
• Online Access: http://umpir.ump.edu.my/id/eprint/29096/; https://doi.org/10.4028/www.scientific.net/MSF.981.115; https://doi.org/10.4028/www.scientific.net/MSF.981.115
• Institution: Universiti Malaysia Pahang

Interest in the nanotechnology invention has been increased among the researcher and industries which lead to many investigations and studies to develop a product with better performance. In this research, hydroxypropyl methylcellulose (HPMC) and poly (vinyl) alcohol (PVA) nanofiber with the ratio 1:1 and the concentration of 5 wt% and 7 wt%, respectively, were successfully fabricated by using electrospinning technique. The HPMC/ PVA was then blended with the different concentration of cellulose nanocrystal (CNC) at 2 wt%, 4 wt%, 6 wt% and 8 wt%. The SEM results of HPMC/PVA/CNC nanofibers shown random orientation fibers with average diameters of 62.28 nm - 252.80 nm. The TGA results showed three major weight loss that prove the decomposotion of HPMC/PVA/CNC was occured with three maximum temperature peaks around 69 ̊C, 290 ̊C and 392 ̊C. As for DSC, the peak intensity of the Tg in the electrospun nanofiber are decreasing as the concentration of CNCs increased might be due to the interfering of the CNC with the crystallization of the polymer causing mobility of the amorphous regions to be higher. Therefore, the study on the thermal properties of HPMC/PVA incorporated with CNCs nanofibers could be a reference for various potential applications.