Research Article
The effect of PVA addition as binders on the properties of hydroxyapatite sintered body
@INPROCEEDINGS{10.4108/eai.30-8-2021.2311514, author={Ade Indra and Ronald Budi Setiawan and Ismet Hari Mulyadi and Jon Affi and Gunawarman Gunawarman}, title={The effect of PVA addition as binders on the properties of hydroxyapatite sintered body}, proceedings={Proceedings of the 2nd International Conference on Industrial and Technology and Information Design, ICITID 2021, 30 August 2021, Yogyakarta, Indonesia}, publisher={EAI}, proceedings_a={ICITID}, year={2021}, month={10}, keywords={hydroxyapatite polyvinyl alcohol uniaxial pressing sintering bone-implant}, doi={10.4108/eai.30-8-2021.2311514} }- Ade Indra
Ronald Budi Setiawan
Ismet Hari Mulyadi
Jon Affi
Gunawarman Gunawarman
Year: 2021
The effect of PVA addition as binders on the properties of hydroxyapatite sintered body
ICITID
EAI
DOI: 10.4108/eai.30-8-2021.2311514
Abstract
Sintered body has been fabricated from Bio-ceramic Hydroxyapatite (HA) with having 2.5 µm of powder size. Initially, HA powder was mixed with varied polyvinyl alcohol (PVA) liquid that is played as binder. The addition of PVA aims to improve the tangential bond between HA powders. Subsequently, the uniaxial pressing method at a pressure of 200 MPa was applied to manufacture the green body. Meanwhile, the sintered body produced after sintering process conducted at 1150 oC with holding time of 120 minutes. Furthermore, X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM), density measurement, and Vickers Hardness Number (VHN) were utilized to characterize the product. The results indicate that PVA addition to HA powder enable to improve the physical and mechanical properties of the sintered body. It is due to have good tangential bond between HA powder thus increasing the strength mechanism. The finding would usefull for fabricating hard bone-implant products.
