Preparation, Characterization and Processing of PCL/PHO Blends by 3D Bioplotting
-
S. Gopi
Abstract
Blends of polycaprolactone (PCL) and poly(3-hydroxyoctanoate) P(3HO) were prepared by melt compounding. These immiscible blends exhibited droplet-matrix morphology at compositions up to 30 wt% P(3HO). Even though the addition of amorphous P(3HO) decreased the crystallinity of PCL, the crystallization temperature of the blends increased by 6 to 7 8C. Blends containing up to 30 wt% P(3HO) had higher crystallization rates, and lower crystallization half-times compared to neat PCL. The viscosity of PCL decreased upon addition of P(3HO), making the blends suitable for processing using a 3D bioplotter. Compositions with 10 to 30 wt% P(3HO) were ideal for processing, because of their improved crystallization kinetics, reduced stickiness and good flow properties. Estimation of the interfacial tension by fitting the Palierne model to the linear viscoelastic properties of the blends revealed good compatibility, which gave rise to synergistic effects in the thermal and mechanical properties. The fibres prepared by 3D bioplotting maintained droplet matrix morphology, with finer particle size than the original compounded material. In addition to favourable viscosity and thermal properties, the extruded fibres containing 30 wt% P(3HO) had comparable modulus to the neat PCL, while exhibiting good ductility. These blends may be suitable alternatives to PCL for biomedical applications, because they provide a range of crystallinities, crystallization rates and viscosities.
© 2020 by Walter de Gruyter Berlin/Boston
Artikel in diesem Heft
- Titelei
- CONTENTS
- EDITORIAL
- Special issue for Pierre J. Carreau
- Regular Contributed Articles
- Microstructure and Tribological Properties of TPU/Fluoropolymer Composites
- Optimization and Scale-Up of Twin-Screw Reactive Extrusion: The Case of EVA Transesterification
- The Effect of Physical Aging on the Mechanical Properties of Raw, Treated and Compatibilized Coir Fibers-Based Polyisoprene Bio-Composites
- Film Blowing of PHB-Based Systems for Home Compostable Food Packaging
- Inverse Rheological Methods for the Determination of Polymer Structures, Diffusion of Small Molecules and Nanofiber Lengths
- Preparation, Characterization and Processing of PCL/PHO Blends by 3D Bioplotting
- Modeling and Numerical Simulation of Laminated Thermoplastic Composites Manufactured by Laser-Assisted Automatic Tape Placement
- A Surfactant-Free Microfluidic Process for Fabrication of Multi-Hollow Polyimide Aerogel Particles
- Preparation and Characterization of Reduced Graphene Oxide Based Natural Rubber Nanocomposites
- A Comparison of CO2 and N2 Foaming Behaviors of PP in a Visualization System
- PPS NEWS
- SEIKEI-KAKOU ABSTRACTS
- INSTRUCTIONS TO AUTHORS
- PPS Membership Application/Impressum
Artikel in diesem Heft
- Titelei
- CONTENTS
- EDITORIAL
- Special issue for Pierre J. Carreau
- Regular Contributed Articles
- Microstructure and Tribological Properties of TPU/Fluoropolymer Composites
- Optimization and Scale-Up of Twin-Screw Reactive Extrusion: The Case of EVA Transesterification
- The Effect of Physical Aging on the Mechanical Properties of Raw, Treated and Compatibilized Coir Fibers-Based Polyisoprene Bio-Composites
- Film Blowing of PHB-Based Systems for Home Compostable Food Packaging
- Inverse Rheological Methods for the Determination of Polymer Structures, Diffusion of Small Molecules and Nanofiber Lengths
- Preparation, Characterization and Processing of PCL/PHO Blends by 3D Bioplotting
- Modeling and Numerical Simulation of Laminated Thermoplastic Composites Manufactured by Laser-Assisted Automatic Tape Placement
- A Surfactant-Free Microfluidic Process for Fabrication of Multi-Hollow Polyimide Aerogel Particles
- Preparation and Characterization of Reduced Graphene Oxide Based Natural Rubber Nanocomposites
- A Comparison of CO2 and N2 Foaming Behaviors of PP in a Visualization System
- PPS NEWS
- SEIKEI-KAKOU ABSTRACTS
- INSTRUCTIONS TO AUTHORS
- PPS Membership Application/Impressum
