Saturday, October 19, 2019

Reinforcement of Dental Composites by Electrospun Nanofibers Research Proposal

Reinforcement of Dental Composites by Electrospun Nanofibers - Research Proposal Example Our work draws support from the background researches concerned with the application of nanoscaled reinforcing materials and organic-inorganic hybrid nanocomposites synthesized by conventional soft chemistry procedures on various innovative industrial products. The principal look out of the following investigation is also based on the previous studies conducted to understand the intricate mechanisms behind the phenomenon of dissipation of energy that is hypothesized to be one of the definitive factors for hiking the index of fracture toughness in solid composites. (Composites Science and Technology, 2008) Past researches show that this energy dissipating phenomenon implicating increase in the fracture toughness is far more definitive and effect enticing for nanocomposites compared to ordinary composites having micron scaled fibers. In the following investigation we attempt to understand and interpret the reasons associated with mimicking such kind of mechanical strength and structure d toughness after reinforcing the resinous polyacrylate matrices of the dental composites with hyperbranched polymeric nanofibers. ... (Saudi Dental Journal, 2006) Though such research is always critical and is undoubtedly clouded by several other unaccountable factors, like, the inherent clinical design of the prosthesis, deformations of the dental base, climatic wear and tear of the metal supports, conditions leading to accidental damages along with the gender, age and total span of usage of the wearer; the plausible causes arising from the discrepancies in the mechanical index of the denture material itself, was the only object of our interest for pursuing further investigations along relevant lines. Therefore, it is undoubtedly clear that the primary objective of this research is to record and understand the effects of the covalently bonded nanoscaled organic reinforcements on the performance and durability index of the recently used dental composites. By designing composites of polyacrylate resin matrices modified with commercial dendritic polymers, like polyesteramide and polyester, we need to create a variati on from the previous investigations by incorporating electrospun polyamide nanofibers into the system and test their effect on the overall mechanical strength of these composites. EXECUTIVE SUMMARY: The nanofibers will be synthesized by electrospinning three different polymers that are Poly Vinyl Alcohol (PVOH), Poly-L-Lactide Acid (PLLA) and Nylon 6 (Polycaprolactam or Polyamide or PA6) and they are to be used with the Hybrane modified acrylate resin matrix of the composites at different weight percents and particle diameters. The compressive strength, diametric tensile strength, linear shrinkage index and flexural strength will be measured at different concentrations and diameters. The morphology of the

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