Article
  • Innovative Synthesis of Durable Polylactic Acid-Thermoplastic Polyurethane Elastomer Composites for Three-Dimensional Printing Applications

  • Xiaojie Zhang, Jianhua Xiao*, Jin Kuk Kim**, Jeong Seok Oh**,† , and Jinho Lee***,†

  • School of Materials Science and Engineering, Nanchang Hangkong University, Nanchang 330000, China
    *School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
    **Department of Materials Engineering and Convergence Technology, Engineering Research Institute, Gyeongsang National University, Jinju 52828, Korea
    ***Department of Physics Education and the Research Institute of Natural Science, Gyeongsang National University, Jinju 52828, Korea

  • 3D 프린팅 응용을 위한 내구성 있는 Polylactic Acid - 열가소성 폴리우레탄 탄성체 복합물의 합성

  • Xiaojie Zhang · Jianhua Xiao* · 김진국** · 오정석**,† · 이진호***,†

  • School of Materials Science and Engineering, Nanchang Hangkong University *School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science **경상국립대학교 나노신소재융합공학과 ***경상국립대학교 물리교육과

  • Reproduction, stored in a retrieval system, or transmitted in any form of any part of this publication is permitted only by written permission from the Polymer Society of Korea.

Abstract

The functionalization of polylactic acid (PLA) is examined by grafting cardanol onto its main backbone chain through a dynamic reaction to improve compatibility between PLA and thermoplastic polyurethane (TPU). Cardanol-grafted PLA (PLAC)/TPU blend-based filaments for fused deposition modeling are tested using melt extrusion. Effects of PLAC grafting ratio on the rheological properties and thermal transformation of the PLAC/TPU blends and the mechanical properties of three-dimensional-printed parts are investigated. A decrease in the glass transition temperature and crystallinity from differential scanning calorimetry are observed with increasing cardanol concentration, implying improved miscibility between PLAC and TPU and as a result, PLAC/TPU blends exhibit improved toughness.


PLA와 열가소성 폴리우레탄(TPU) 간의 호환성을 향상시키기 위해 동적 반응을 통해 cardanol을 주요 백본 체인에 그래프팅하였다. Cardanol-grafted PLA(PLAC)/TPU 혼합 기반 필라멘트는 용융 압출을 사용하여 테스트되었고 PLAC 그래프팅 비율이 PLAC/TPU 혼합물의 유변학적 특성 및 열 변형과 3 차원 인쇄 부품의 기계적 특성에 미치는 영향을 조사하였다. Cardanol 농도가 증가함에 따라 유리 전이 온도가 감소하는 것을 확인하였고 differential scanning calorimetry 측정으로 결정성 감소가 관찰되어 PLA 와 TPU 간의 혼화성이 향상되었으며 결과적으로 PLAC/TPU 블렌드의 향상된 인성을 볼 수 있었다.


Keywords: cardanol, polylactic acid, fused deposition modeling, 3D printing, dynamic reaction.

  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2022 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 2023; 47(6): 711-719

    Published online Nov 25, 2023

  • 10.7317/pk.2023.47.6.711
  • Received on May 31, 2023
  • Revised on Aug 15, 2023
  • Accepted on Aug 17, 2023

Correspondence to

  • Jeong Seok Oh** , and Jinho Lee***

  • **Department of Materials Engineering and Convergence Technology, Engineering Research Institute, Gyeongsang National University, Jinju 52828, Korea
    ***Department of Physics Education and the Research Institute of Natural Science, Gyeongsang National University, Jinju 52828, Korea

  • E-mail: ohjs@gnu.ac.kr, lee.phys.edu@gnu.ac.kr