Effects of Copper Surface Oxidation and Reduction on Shear-Bond Strength Using Functional Monomers
| Autor: | Takayuki Yoneyama, Hideo Matsumura, Haruto Hiraba, Akihisa Kodaira, Hiroyasu Koizumi, Kosuke Takehana |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
acrylic resin
adhesive Materials science chemistry.chemical_element Hydrochloric acid 02 engineering and technology lcsh:Technology Article 03 medical and health sciences chemistry.chemical_compound 0302 clinical medicine oxide film X-ray photoelectron spectroscopy Surface roughness General Materials Science functional monomer lcsh:Microscopy Acrylic resin lcsh:QC120-168.85 dental metal lcsh:QH201-278.5 lcsh:T Bond strength 030206 dentistry 021001 nanoscience & nanotechnology Copper Chemical state chemistry lcsh:TA1-2040 visual_art visual_art.visual_art_medium lcsh:Descriptive and experimental mechanics lcsh:Electrical engineering. Electronics. Nuclear engineering Adhesive lcsh:Engineering (General). Civil engineering (General) 0210 nano-technology lcsh:TK1-9971 Nuclear chemistry |
| Zdroj: | Materials Volume 14 Issue 7 Materials, Vol 14, Iss 1753, p 1753 (2021) |
| ISSN: | 1996-1944 |
| DOI: | 10.3390/ma14071753 |
| Popis: | This study was conducted to clarify the influence of the copper surface oxidation and reduction on the shear-bond strength with functional monomers. Unheated copper specimens (UH n = 88) were wet-ground. Three-quarters of the UH were then heated (HT). Two-thirds of the HT was then immersed in a hydrochloric acid solution (AC). Half of the AC was then reheated (RH). Each group was further divided into two groups (n = 11), which were primed by either 6-methacryloyloxyhexyl 2-thiouracil-5-carboxylate (MTU-6) or 10-methacryloyloxydecyl dihydrogen phosphate (MDP). The shear-bond strength tests were used for bonding with an acrylic resin. The surface roughness values and chemical states of the four groups were analyzed using a confocal scanning laser microscope and X-ray photoelectron spectroscopy (XPS). The shear-bond strengths of HT and RH were the lowest in the MTU-6-primed groups. The result of AC was significantly lower than others in the MDP-primed groups. The XPS results showed that the surfaces of UH and AC consisted of Cu2O and Cu. The surface changed to CuO upon heating. The presence or absence of copper-oxide films showed the opposite trends in the effectiveness of MTU-6 and MDP to improve bond strength. The results could elucidate the effects of functional monomers on copper-oxide films. |
| Databáze: | OpenAIRE |
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