Sustainable composites from biodegradable poly (lactic acid) modified with isosorbide-based plasticizer: Preparation and performance DOI
Gang Mu, Liang Ren, Xiangpeng Liu

et al.

Journal of Thermoplastic Composite Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 14, 2025

Bio-based resin plasticizers not only overcome the toxicity and non-degradability of phthalate plasticizers, but also expand application areas polymers. In this study, environmentally sustainable plasticizer isosorbide dinonanoate (ISN) is chosen to plasticize toughen PLA for enhancing impact strength processability, further expanding in field flexible packaging materials. Our work primarily focuses on strength, crystallinity, glass transition temperature (Tg), morphology composites. The results demonstrate that adding ISN at a concentration 25 phr reduces Tg by 22°C, representing 35.4% decrease relative neat PLA, thus confirming effective plasticizing PLA; Izod arrives 688 J/m, approximately 30-fold increase, demonstrating dramatically enhanced toughness equilibrium torque 1.9 Nm, involving improved processability DSC tests show crystallinity composites improves when amount increases. Notably, increases 248% from 7.07% 24.59% addition phr. Meanwhile, SEM reveals has good compatibility with as evidenced absence phase separation fracture surfaces

Language: Английский

Sustainable composites from biodegradable poly (lactic acid) modified with isosorbide-based plasticizer: Preparation and performance DOI
Gang Mu, Liang Ren, Xiangpeng Liu

et al.

Journal of Thermoplastic Composite Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 14, 2025

Bio-based resin plasticizers not only overcome the toxicity and non-degradability of phthalate plasticizers, but also expand application areas polymers. In this study, environmentally sustainable plasticizer isosorbide dinonanoate (ISN) is chosen to plasticize toughen PLA for enhancing impact strength processability, further expanding in field flexible packaging materials. Our work primarily focuses on strength, crystallinity, glass transition temperature (Tg), morphology composites. The results demonstrate that adding ISN at a concentration 25 phr reduces Tg by 22°C, representing 35.4% decrease relative neat PLA, thus confirming effective plasticizing PLA; Izod arrives 688 J/m, approximately 30-fold increase, demonstrating dramatically enhanced toughness equilibrium torque 1.9 Nm, involving improved processability DSC tests show crystallinity composites improves when amount increases. Notably, increases 248% from 7.07% 24.59% addition phr. Meanwhile, SEM reveals has good compatibility with as evidenced absence phase separation fracture surfaces

Language: Английский

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