Abstract
Abstract Stainless steel 316L (SS316L) as a significant bio-material, their wires were used to support the PMMA matrix. Two simple and low-cost surface pretreatments for SS316L wires were performed to enhance denture impact strength: mechanical scratching (treating SS316L wires with SiC powder inside a rotating container) and electrochemical anodizing. Three mechanical scratching samples for different periods of 60, 90 and 120min were prepared. Anodizing technique conditions were: Ethylene glycol with perchloric acid as an anodizing solution, 15V supplying and graphite rod as an anode. Anodizing process involved three pretreating periods of 15, 20, and 30min. All the prepared samples had dimensions of 65 × 10 × 3 mm. SEM technique showed different morphology nature involved holes, scratches and pores with a density of 104/μm2 and a crack length of 60μm. The PMMA reinforced with scratched stainless steel 316L wire surface for 120 min presented the highest impact strength value (42 kJ/m2) with (450.91%) increment. Anodizing samples showed a fluctuating behavior of samples with enhancing in the impact strength of anodizing wire for 20min of about 26.99 kJ/m2, which is still lower than that for scratched samples in average.
Highlights
Stainless steel 316L (SS316L) as a significant biomaterial, their wires were used to support the polymethyl methacrylate (PMMA) matrix
The PMMA reinforced with scratched stainless steel 316L wire surface for 120 min presented the highest impact strength value (42 kJ/m2) with (450.91%) increment
SS316L was electropolished in ethylene glycol (EG) solution containing 5 vol% perchloric acid at 20 V for 20 min
Summary
Abstract: Stainless steel 316L (SS316L) as a significant biomaterial, their wires were used to support the PMMA matrix. Two simple and low-cost surface pretreatments for SS316L wires were performed to enhance denture impact strength: mechanical scratching (treating SS316L wires with SiC powder inside a rotating container) and electrochemical anodizing. The PMMA reinforced with scratched stainless steel 316L wire surface for 120 min presented the highest impact strength value (42 kJ/m2) with (450.91%) increment. SS316L was electropolished in ethylene glycol (EG) solution containing 5 vol% perchloric acid at 20 V for 20 min. The purpose of this article is to prepare a reinforced PMMA by surface pretreated ss316L wires for different biomaterial and denture applications, including unpreceded simple and low-cost surface modification methods (mechanical scratching and anodizing) to enhance the denture impact strength. The novelty of this work is the use of SS316L wire with the thickness for reinforcing PMMA by a new simple low-cost mechanical method.
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