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

Mohd Akhir, Nur atiqah and Othman, Maizatulnisa and Fachmi Buys, Yose and Shaffiar, Norhashimah and Jimat, Dzun Noraini and Syed Shaharuddin, Sharifah Imihezri (2021) Characterization and melt spinning of poly (lactic acid)/poly (ethylene glycol) blends. IIUM Engineering Journal, 22 (1). pp. 201-212. ISSN 1511-758X E-ISSN 2289-7860

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Abstract

: 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 °C to 46 °C and crystallization temperature from 107 °C to 87 °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 (Journal)
Uncontrolled Keywords:	microfiber; poly lactic acid (PLA); polyethylene glycol (PEG); melt spinning
Subjects:	T Technology > TJ Mechanical engineering and machinery
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering Kulliyyah of Engineering > Department of Biotechnology Engineering Kulliyyah of Engineering > Department of Mechanical Engineering
Depositing User:	Internatio Sharifah Imihezri Syed
Date Deposited:	22 Dec 2021 08:37
Last Modified:	22 Dec 2021 08:40
URI:	http://irep.iium.edu.my/id/eprint/95031

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