Characterization and melt spinning of poly (lactic acid)/poly (ethylene glycol) blends

Akhir, Nur Atiqah Mohd and Othman, Maizatulnisa and Buys, Yose Fachmi and Shaffiar, Norhashimah and Jimat, Dzun Noraini and Shaharuddin, Sharifah Imihezri Syed (2021) Characterization and melt spinning of poly (lactic acid)/poly (ethylene glycol) blends. IIUM Engineering Journal, 22 (1). pp. 201-213. ISSN 1511-788X, DOI

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In this study, melt blended compositions of pure PLA with additions of polyethylene glycol (PEG) up to 30 wt% were prepared. Fourier-transform infrared spectroscopy (FTIR), differential scanning calorimeter (DSC), and thermogravimetric analysis (TGA) were used to investigate the properties of PLA/PEG blends, such as structural, thermal, and morphological properties. The results showed that further increments of PEG cause the -OH group of PLA/PEG blends to show a broad peak, indicating that there is hydrogen bonding interaction between PEG and PLA chains. DSC result revealed that the addition of PEG decreases the glass transition temperature from 57 degrees C to 46 degrees C and crystallization temperature from 107 degrees C to 87 degrees C. Such trends suggest enhanced chain mobility of PLA chains. TGA thermograms showed that further additions of PEG into PLA resulted in a consistent shift to lower temperature and decrease in thermal stability. Optical microscopy (OM) and scanning electron microscopy (SEM) observations of the melt spun PLA/PEG microfibers revealed that the diameter of the microfibers averaged between 15 to 80 microns.

Item Type: Article
Funders: International Islamic University Malaysia, IIUM [RIGS17-052-0627]
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Faculty of Engineering > Department of Mechanical Engineering
Depositing User: Ms Zaharah Ramly
Date Deposited: 27 May 2022 03:45
Last Modified: 27 May 2022 03:45

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