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Polycaprolactone/polysaccharide functional composites for low-temperature fused deposition modelling.

Yu-Qing Zhao1, Ji-Hao Yang1, Xiaokang Ding1

  • 1State Key Laboratory of Chemical Resource Engineering, Key Lab of Biomedical Materials of Natural Macromolecules (Beijing University of Chemical Technology), Ministry of Education, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing, 100029, China.

Bioactive Materials
|February 29, 2020
PubMed
Summary

Researchers developed new polycaprolactone (PCL)/starch composites for low-temperature Fused Deposition Modelling (FDM) 3D printing. These PCL composites enhance material properties and enable functionalization for advanced applications.

Keywords:
AntibacterialCompositeFused deposition modellingMelt blendingPolycaprolactone

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Area of Science:

  • Materials Science
  • Polymer Chemistry
  • Additive Manufacturing

Background:

  • Fused Deposition Modelling (FDM) is a widely adopted 3D printing technology.
  • Material properties are critical for achieving high-quality FDM products.
  • Developing specialized materials is essential for advancing FDM capabilities.

Purpose of the Study:

  • To develop novel polycaprolactone (PCL)-based composites for low-temperature FDM.
  • To investigate the effects of starch addition on PCL properties and FDM performance.
  • To explore the potential for creating functionalized antibacterial and biocompatible FDM materials.

Main Methods:

  • Melt blending of polycaprolactone (PCL) with varying ratios of starch.
  • Characterization of printability, tensile strength, rheological properties, and crystallization behavior.
  • Evaluation of biological performances for antibacterial and biocompatible applications.

Main Results:

  • PCL/starch composites exhibited optimal performance at 9 parts per hundred (ph) starch and 80-90°C.
  • Improved melting strength and solidification rate were observed in PCL/starch composites.
  • Starch enhanced crystallization temperature, degree of crystallinity, and crystallization rate without compromising tensile strength.

Conclusions:

  • Starch addition is an effective method to improve PCL properties for low-temperature FDM.
  • The developed PCL/starch composites offer enhanced printability and mechanical properties.
  • This approach facilitates the creation of versatile, functionalized materials for advanced FDM applications.