Thermal Characteristic Of Waste-Derived Hydroxyapatite (HA) Reinforced Ultra High Molecular Weight Polyethylene (UHMWPE) Composites For Fused Deposition Modeling (FDM) Process

Colloquium of Advanced Mechanics 2016

Bin Md Ansari, Mohamad Helmi^1,2 ; Irwan Bin Ibrahim, Mohd Halim^1,2

Advanced Manufacturing and Materials Centre, ORICC UTHM, Malaysia^1

Faculty of Mechanical and Manufacturing, University Tun Hussein Onn Malaysia, Johor, Malaysia^2

关键词: Additive manufacturing process;    Biomedical applications;    Degradation temperatures;    Fused deposition modeling;    Processability;    TGA and DSC;    Thermal characteristics;    Ultra-high;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/165/1/012014/pdf
DOI  :  10.1088/1757-899X/165/1/012014

来源: IOP

【 摘 要 】

The present study provides a hydrothermal synthesis to obtain Hydroxyapatite (HA) powder from waste eggshells. This waste-derived HA has been characterized by X-ray diffraction, scanning electron microscopy and energy dispersive spectroscopy analysis. Waste-derived HA will be reinforced the Ultra-High Molecular Weight Polyethylene (UHMWPE) to develop a material composite for biomedical applications because of impressive mechanical properties owned by UHMWPE. Main challenger is UHMWPE has an ultra-high viscosity that renders continuous melt- state processes including one of the additive manufacturing processes which is Fused Deposition Modeling (FDM). To develop this material as feedstock in FDM process, it has been overcome by blending UHMWPE with waste-derived HA as filler. It exhibit the inclusion of 50wt% HA has reduced the degradation temperature in TGA and DSC thus enhances the processability in FDM process.