Effect of Addition of Composite Polyamide Micro Particles and Silicone Dioxide NanoParticle on Some Mechanical Properties of Room Temperature Vulcanized Maxillofacial Silicone Elastomer Before and after Artificial Aging

Authors

  • Bahaa F. Alanssari1, Bayan S. Khalaf2

Keywords:

Composite, silicone dioxide, polyamide, Maxillofacial silicone, Mechanical properties, artificial aging.

Abstract

Background: The most common reason for re-making a maxillofacial prosthesis is the degradation of the mechanical properties of the silicone.
Aim of this study: To assess some mechanical properties of VST-50F maxillofacial silicone reinforced with a composite of silicon dioxide nanoparticle and polyamide-6 microparticle before and after artificial aging.
Material and Method: Preparing 240 samples tested for tear strength, tensile strength and elongation percentage, hardness, and roughness before and after aging. The Silicon dioxide was added in concentrations of 1% by weight and Polyamide-6 in the concentration of 0.25% and 0.5% by weight to the VST-50F RTV maxillofacial silicone. The one-way ANOVA and post hoc tests were used for inferential statistics.
Results: The one-way ANOVA showed a highly significant difference between all tested groups. The effect of the addition of composite fillers showed an increase in tear strength, hardness, and surface roughness but a decrease in tensile and percentage of elongation. However, the effect of artificial aging showed increased in tear strength, Percentage of elongation, and surface roughness, but a decrease in tensile strength and hardness.
Conclusion: Addition of composite of fillers into the silicone elastomer allowed enhancement of some mechanical properties. The composite of different types of filler reinforcement improves the anti-aging properties of silicone and maintain some of the mechanical properties to enhance the service life.

Author Biography

Bahaa F. Alanssari1, Bayan S. Khalaf2

1 M.Sc.Student (Prosthodontics Department, College of Dentistry/ University of Baghdad, Iraq),
2 Asist.Prof. (Prosthodontics Department, College of Dentistry/ University of Baghdad, Iraq)

Published

2020-01-16

How to Cite

Bahaa F. Alanssari1, Bayan S. Khalaf2. (2020). Effect of Addition of Composite Polyamide Micro Particles and Silicone Dioxide NanoParticle on Some Mechanical Properties of Room Temperature Vulcanized Maxillofacial Silicone Elastomer Before and after Artificial Aging. Indian Journal of Forensic Medicine & Toxicology, 14(1), 1013-1019. Retrieved from http://medicopublication.com/index.php/ijfmt/article/view/187