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Effect of Silica Nanoparticles Silanized by Functional/Functional or Functional/Non-Functional Silanes on the Physicochemical and Mechanical Properties of Dental Nanocomposite Resins
- Source :
- Applied Sciences, Vol 12, Iss 159, p 159 (2022), Applied Sciences; Volume 12; Issue 1; Pages: 159
- Publication Year :
- 2022
- Publisher :
- MDPI AG, 2022.
-
Abstract
- Dental nanocomposite resins have been proposed as potential restorative materials that are inevitably challenged with dynamic oral conditions. This investigation focused on the contribution of miscellaneous silane blends, used as coupling agents, to the ultimate performance of dental nanocomposite dimethacrylate resins. Herein, silica nanoparticles were initially silanized with functional/functional or functional/non-fuctional silane mixtures (50/50 wt/wt). Fourier transforms infrared (FTIR) spectroscopy and thermogravimetric analysis (TGA) verified the modification of nanosilica. The organomodified nanoparticles were then inserted into Bis-GMA/TEGDMA based resins by hand spatulation process. Scanning electron microscopy (SEM) findings revealed a broad distribution of fillers in the polymer network when reactive silanes and their corresponding blends were used. Furthermore, optical profilometry results showed that the presence of functional/non-functional mixtures can produce relatively smooth composite surfaces. Polymerization shrinkage was found to be limited upon the decrease of the degree of conversion regarding all the tested silane mixtures. The functional/functional silane blend assured the highest flexural properties and the lowest solubility after the storage of the nanocomposite in water for 1 week at 37 °C. The above experimental data could contribute to the proper designing of dental nanocomposite resins which may fit the modern clinical applications.
- Subjects :
- Fluid Flow and Transfer Processes
dental nanocomposite resins
Technology
organosilane blends
functional silanes
silica nanoparticles
QH301-705.5
Process Chemistry and Technology
Physics
QC1-999
General Engineering
Engineering (General). Civil engineering (General)
Computer Science Applications
Chemistry
General Materials Science
TA1-2040
Biology (General)
Instrumentation
QD1-999
Subjects
Details
- Language :
- English
- ISSN :
- 20763417
- Volume :
- 12
- Issue :
- 159
- Database :
- OpenAIRE
- Journal :
- Applied Sciences
- Accession number :
- edsair.doi.dedup.....9e07a9f36e6918618a3204a33dbb6ee2