TY - GEN
T1 - Recyclability of dental gypsum via calcination
AU - Zakiyuddin, Ahmad
AU - Joesiana, Decky
AU - Khoirurrijal, Rifqi A.
AU - Astutiningsih, Sotya
N1 - Publisher Copyright:
© 2020 Trans Tech Publications Ltd, Switzerland.
PY - 2020
Y1 - 2020
N2 - Nowadays, either keeping or throwing out the final product of dental cast is the most common thing to do. The waste from dentistry can be considered toxic if not handled specifically and separately to other waste. Hence, the recycling process can reduce its effect and the waste of dental casts. It can also reduce the cost of producing new high-grade dental gypsum. This paper studies the behavior of before-after recycle and heat treatment to several grades of dental gypsum that will be used as impression material or dies. As it is designed to be an impression material that will undergo heat treatment, Simultaneous Thermogravimetry and Differential Scanning Calorimetry (TGA-DSC) will be applied to understand the Phase Transformation to its mass change and the behavior to a temperature difference. The result will be validated using an experimental approach. X-ray Diffraction (XRD) and Scanning Electron Microscope will also be done to identify the crystalline phases and the surface microstructure, and it will be validated using an experimental approach as well. A range of gaps between parameter values is expected between the fresh/new dental gypsum and the recycled one. However, it is expected some similar values between the heat-treated and the fresh/new dental gypsum.
AB - Nowadays, either keeping or throwing out the final product of dental cast is the most common thing to do. The waste from dentistry can be considered toxic if not handled specifically and separately to other waste. Hence, the recycling process can reduce its effect and the waste of dental casts. It can also reduce the cost of producing new high-grade dental gypsum. This paper studies the behavior of before-after recycle and heat treatment to several grades of dental gypsum that will be used as impression material or dies. As it is designed to be an impression material that will undergo heat treatment, Simultaneous Thermogravimetry and Differential Scanning Calorimetry (TGA-DSC) will be applied to understand the Phase Transformation to its mass change and the behavior to a temperature difference. The result will be validated using an experimental approach. X-ray Diffraction (XRD) and Scanning Electron Microscope will also be done to identify the crystalline phases and the surface microstructure, and it will be validated using an experimental approach as well. A range of gaps between parameter values is expected between the fresh/new dental gypsum and the recycled one. However, it is expected some similar values between the heat-treated and the fresh/new dental gypsum.
KW - Calcination
KW - Dental gypsum
KW - Microstructure
KW - Recycling
KW - TGA-DSC
KW - XRD
UR - http://www.scopus.com/inward/record.url?scp=85088289686&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/MSF.1000.90
DO - 10.4028/www.scientific.net/MSF.1000.90
M3 - Conference contribution
AN - SCOPUS:85088289686
SN - 9783035715996
T3 - Materials Science Forum
SP - 90
EP - 96
BT - Advanced Materials Research QiR 16
A2 - Zulfia, Anne
A2 - Putra, Wahyuaji Narottama
PB - Trans Tech Publications Ltd
T2 - 16th International Conference on Quality in Research, QiR 2019
Y2 - 22 July 2019 through 24 July 2019
ER -