Abstract
Aim of this Study: Was to evaluate the effect of addition of Aluminum oxide (Al2O3) Nano fillers on some mechanical properties of VST 50F room temperature vulcanized maxillofacial silicone before and after (100 hours) of the artificial accelerated aging. The Nano Al2O3 was added in a concentrations of 1% and 1.5% by weight to the VST 50F RTV maxillofacial silicone, the samples were tested for tear strength (ISO 34 -1), tensile strength and percentage of elongation(ISO 37), shore A hardness and surface roughness(ISO 7619) before and after artificial aging. The scanning electron microscope was used to assess the uniformity of Nano-fillers dispersion within the silicone matrix, while the FTIR was used to analyze the interaction of the Nano Al2O3 with the silicone. The SEM showed a well dispersion of the Nano-Al2O3 within the silicone matrix, there was no interaction between the Nano-Al2O3 and the silicone in the FTIR. The results before artificial aging showed highly significant increase in tear strength, tensile strength, shore A hardness and surface roughness tests, except for the percentage of elongation test that showed a significant decrease for 1% and 1.5% group when compared to the control group.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
