Effects of Tellurium Oxide (TeO2) Particles on the Thermal Conductivity, Hardness, and Roughness of Maxillofacial Silicone Elastomers

Abstract

Purpose: The purpose of this research was to evaluate how different concentrations of TeO2 filler particles influence the thermal conductivity, hardness, and surface roughness of room-temperature-vulcanizing VerSiltal 50 silicone elastomeric materials. Materials and Methods: A total of 90 samples were prepared by varying the weight percentages of TeO2 powder (0, 3, and 5 wt. %). Thirty samples from each group were used in the analysis. Two experimental groups with 3 and 5 wt. % of TeO2 fillers were prepared and subjected to thermal conductivity, surface hardness, and surface roughness tests. The data were analyzed using descriptive statistics and analysis of variance with multiple comparison tests, and a P value <0.05 indicated significance. Results: Thermal conductivity and hardness improved as the percentage of TeO2 increased from 3 wt. % to 5 wt. %, compared with those in the control group, whereas surface roughness decreased. Conclusion: The means for thermal conductivity and surface hardness of the 3 and 5 wt. % TeO2 experimental groups increased significantly relative to those in the control group.

Keywords

• Tellurium Oxide
• Silicone Elastomer
• Room-Temperature Vulcanizing
• VerSilTal 50
• Thermal Conductivity
• Physical Properties