Effect of thione primers on adhesive bonding between an indirect composite material and Ag-Pd-Cu-Au alloy
Effect of thione primers on adhesive bonding between an indirect composite material and Ag-Pd-Cu-Au alloy
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DOI：
10.4012/dmj.2014-187
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发表时间：
2014-10-01
影响因子：
2.5
通讯作者：
Nikawa, Hiroki
中科院分区：
文献类型：
--
作者：
Imai, Hideyuki;Koizumi, Hiroyasu;Nikawa, Hiroki
当前的研究评估了底漆对与银-钯-铜-金 (Ag-Pd-Cu-Au) 合金 (Castwell) 连接的间接复合材料的剪切粘合强度的影响。圆盘样品由合金铸造而成，并用氧化铝进行空气研磨。合金表面涂有八种金属底漆。将轻聚合间接复合材料（Solidex）粘合到合金上。在应用热循环之前和之后测定剪切粘合强度。用 Metaltite（硫酮）和 M. L. Primer（硫化物）打底的两组显示出最大的热循环后粘合强度（8.8 和 6.5 MPa）。 X射线光电子能谱（XPS）分析结果表明，即使在用丙酮反复清洗后，Metaltite底漆中的硫酮单体（MTU-6）仍强烈吸附在Ag-Pd-Cu-Au合金表面上。使用硫酮 (MTU-6) 或硫化物底漆可有效增强复合材料与 Ag-Pd-Cu-Au 合金之间的结合力。
The current study evaluated the effect of primers on the shear bond strength of an indirect composite material joined to a silver-palladium-copper-gold (Ag-Pd-Cu-Au) alloy (Castwell). Disk specimens were cast from the alloy and were air-abraded with alumina. Eight metal primers were applied to the alloy surface. A light-polymerized indirect composite material (Solidex) was bonded to the alloy. Shear bond strength was determined both before and after the application of thermocycling. Two groups primed with Metaltite (thione) and M. L. Primer (sulfide) showed the greatest post-thermocycling bond strength (8.8 and 6.5 MPa). The results of the X-ray photoelectron spectroscopic (XPS) analysis suggested that the thione monomer (MTU-6) in the Metaltite primer was strongly adsorbed onto the Ag-Pd-Cu-Au alloy surface even after repeated cleaning with acetone. The application of either the thione (MTU-6) or sulfide primer is effective for enhancing the bonding between a composite material and Ag-Pd-Cu-Au alloy.