Journal
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
Volume 116, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.jmbbm.2021.104369
Keywords
3-Aminopropyltriethoxysilane; Glass ionomer cement; Mechanical properties; Water-aging resistance
Funding
- National Natural Science Foundation of China [81970974]
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By modifying the surface of basalt fibers (BF) with 3-aminopropyltriethoxysilane (APS), the interfacial adhesion between BF and glass ionomer cement (GIC) matrix can be improved. The optimum concentration for BF modification was found to be 5 wt% of APS, resulting in 5%APS-BF-GIC exhibiting the best comprehensive mechanical properties.
In order to improve interfacial adhesion between basalt fibers (BF) and glass ionomer cement (GIC) matrix, a silane named 3-aminopropyltriethoxysilane (APS) was used to modify the surface of BF. APS treated BF (APS-BF) was characterized by Fourier transform infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), and scanning electron microscopy (SEM). The influence of APS concentration on mechanical properties of APSBF reinforced GIC (APS-BF-GIC) was investigated, and water aging resistance of optimum APS-BF-GIC was also studied. The results showed that 5 wt% of APS was the optimum concentration for BF modification, for 5%APSBF-GIC had the best comprehensive mechanical properties in all of APS-BF-GICs. Though 5%APS-BF-GIC had higher water sorption than BF-GIC and GIC, it still had higher flexural strength and exhibited better water-aging resistance.
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