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Updated: Feb 15, 2026
08:08
Fabrication and Design of Wood-Based High-Performance Composites
Published on: November 9, 2019
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High-performance biodegradable polylactide composites fabricated using a novel plasticizer and functionalized
Junjun Kong1, Yi Li2, Yungang Bai2
1Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China; University of Chinese Academy of Science, Beijing 100049, China.
International Journal of Biological Macromolecules
|January 29, 2018
Summary
This study introduces a novel plasticizer, poly(diethylene glycol succinate) (PDEGS), and functionalized eggshell powder (FES) to enhance polylactide (PLA) biocomposites. The resulting materials show improved mechanical properties and crystallization, offering sustainable alternatives to conventional plastics.
Area of Science:
- Materials Science
- Polymer Chemistry
- Biocomposites
Background:
- Polylactide (PLA) is a biodegradable polymer with potential applications but limited mechanical properties.
- Developing sustainable fillers and effective plasticizers is crucial for enhancing PLA performance.
- Eggshell powder offers a sustainable resource for composite development.
Purpose of the Study:
- To synthesize and evaluate poly(diethylene glycol succinate) (PDEGS) as a plasticizer for PLA.
- To prepare and utilize functionalized eggshell powder (FES) as a sustainable filler for PLA.
- To develop and characterize novel PLA biocomposites with improved properties.
Main Methods:
- Synthesis of PDEGS polyester and FES filler.
- Preparation of PLA biocomposites via melt blending.
- Characterization of miscibility, crystallization kinetics, and mechanical properties.
Main Results:
- 15 wt% PDEGS showed good miscibility with PLA, increasing chain mobility.
- FES acted as an effective nucleating agent, significantly improving PLA crystallization.
- Elongation at break increased from 6% for pure PLA to over 200% in biocomposites.
Conclusions:
- The developed PLA biocomposites exhibit enhanced crystallization and tunable mechanical properties.
- PDEGS and FES effectively improve PLA's performance characteristics.
- These biocomposites show promise as sustainable alternatives to traditional commodity plastics.
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