Preparation and characterization of poly(lactic acid) with adipate ester added as a plasticizer

Author:

Tsou Chi-Hui12,Gao Chen1,Guzman Manuel De1,Wu Dung-Yi3,Hung Wei-Song45,Yuan Lin6,Suen Maw-Cherng7,Yeh Jen-taut8

Affiliation:

1. Material Corrosion and Protection Key Laboratory of Sichuan Province, College of Materials Science and Engineering, Sichuan University of Science and Engineering, Zigong, China

2. Department of Materials Science, Chulalongkorn University, Bangkok, Thailand

3. Department of Materials Science and Engineering, Cornell University, Ithaca, New York, USA

4. Department of Materials Science and Engineering, Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei, Taiwan (Republic of China)

5. R&D Center for Membrane Technology, Chung Yuan University, Taoyuan, Taiwan (Republic of China)

6. Department of Materials and Textiles, Oriental Institute of Technology, Pan-Chiao, Taiwan (Republic of China)

7. Department of Creative Fashion Design, Taoyuan Innovation Institute of Technology, Jhongli, Taiwan (Republic of China)

8. Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Faculty of Materials Science and Engineering, Hubei University, Wuhan, China

Abstract

Poly(lactic acid) (PLA) was thermally blended with adipate ester (AE) to enhance the toughness of PLA. All specimens which were biodegradable materials were prepared using a plasticorder. Differential scanning calorimetry and Fourier-transform infrared spectroscopy indicated that the PLA structure was looser because of the presence of the AE additive. The elongation at break and biodegradable property increased substantially with increasing amounts of AE. The results reveal that excessive amounts of plasticizer would cause the exudation of AE from the PLA/AE composites, which was ascribed to the plasticizer migration phenomenon.

Publisher

SAGE Publications

Subject

Materials Chemistry,Polymers and Plastics,Ceramics and Composites

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