CHARACTERISATION AND PRODUCTION OF POLY (LACTIC ACID)/POLY(ETHYLENE GLYCOL) MICROFIBER VIA MELT DRAWN SPINNING PROCESS

In this study, melt blended compositions of pure PLA with additions polyethylene glycol (PEG) up to 30 wt% were prepared. Fourier-transform infrared spectroscopy (FTIR), differential scanning calorimeter (DSC), and thermogravimetric analysis (TGA) used investigate the properties PLA/PEG blends, such as structural, thermal, morphological properties. The results showed that further increments PEG cause -OH group blends show a broad peak, indicating there is hydrogen bonding interaction between chains. DSC result revealed addition decreases glass transition temperature from 57 °C 46 crystallization 107 87 °C. Such trends suggest enhanced chain mobility TGA thermograms into resulted in consistent shift lower decrease thermal stability. Optical microscopy (OM) electron (SEM) observations spun microfibers diameter averaged 15 80 microns. ABSTRAK: Kajian ini menganalisa komposisi adunan lebur asli bersama tambahan polietilena glikol sebanyak 30%. Penjelmaan Fourier spektroskopi inframerah kalorimeter pengimbasan pembezaan (DSC) dan analisis termogravimetri telah digunakan bagi mengkaji sifat-sifat PLA/PEG, seperti struktur, terma morfologi. Keputusan menunjukkan penambahan seterusnya menyebabkan kumpulan campuran memberikan puncak yang lebar, ada interaksi ikatan hidrogen antara rantaian PLA. mengurangkan perubahan gelas dari kepada suhu kristalisasi Trend mencadangkan peningkatan pergerakan rangkaian pada Termogram dengan berterusan ke dalam menghasilkan penurunan konsisten pengurangan kestabilan haba. Pemerhatian mikroskop optik mikroskopi elektron penskanan mikrofiber purata mikron.