TY  - EJOU
AU  - Mekonnen, Kasahun Tsegaye 
AU  - Alemea, Melaku Tesfaye 
AU  - Ezez, Dessie 
AU  - Zenebe, Abenezer 
AU  - Daka, Negussie Darota 

TI  - Effect of Modified Gum Arabic and Euphorbia Trigona Mill Master Batch on the Crystallization and Thermal Stability of Poly (Lactic Acid)
T2  - Journal of Renewable Materials

PY  - 
VL  - 
IS  - 
SN  - 2164-6341

AB  - This study examined the effects of modified Gum Arabic (OLLA-g-GA), modified <i>Euphorbia trigona</i> Mill (OLLA-g-ETML), and their master batch (OLLA-g-GA–OLLA-g-ETML) on the non-isothermal crystallisation and thermal stability of poly (lactic acid) (PLA). The interface interactions of PLA with the modifiers before and after modification were analysed and identified using FTIR spectroscopy, which displayed different peak formations and intensities compared to neat PLA, indicating physical interactions with the modifiers. Differential scanning calorimetry (DSC) was used to study non-isothermal crystallisation at a heating rate of 10°C/min. Tensile strength and elongation at break of PLA improved by the addition of biofiller. The incorporation of OLLA-g-GA, OLLA-g-ETML, and their master batch enhanced the crystallinity enhancement to 39.32%, 36.30%, and 40.39%, respectively, from 31.36% (for neat PLA) to 35.28%. Thermal annealing increased the crystallinity of the PLA/master batch composites to 45.83%. These findings confirm that blending PLA with modified gum Arabica, <i>Euphorbia trigona</i> Mill, and master batch had a positive effect on the crystallisation and thermal stability of PLA, demonstrating a successful methodology for improving the performance of biodegradable polymer composites.
KW  - Gum Arabic; euphoria trigona mill; master batch; thermal stability; poly (lactic acid)

DO  - 10.32604/jrm.2026.02026-0221