Three-body-wear resistance of the experimental composites containing filler treated with hydrophobic silane coupling agents
Three-body-wear resistance of the experimental composites containing filler treated with hydrophobic silane coupling agents
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DOI：
10.1016/j.dental.2007.09.001
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发表时间：
2008-06-01
期刊：
影响因子：
5
通讯作者：
Kunzelmann, Karl-Heinz
中科院分区：
文献类型：
--
作者：
Nihei, Tomotaro;Dabanoglu, Alp;Kunzelmann, Karl-Heinz
采用新型疏水硅烷偶联剂对填料进行改性，对树脂基复合材料的耐磨性进行了评价。合成了一种新型含疏水苯基的硅烷偶联剂3-（3-甲氧基-4-甲基丙烯酰氧基苯基）丙基三甲氧基硅烷（p-MBS）。配制了含有85wt%用该硅烷改性的填料的实验光固化混合复合材料。采用ACTA三体磨损试验机对12个试样进行三体磨损试验，采用单因素方差分析和Tukey's多重比较检验对数据进行统计分析，结果表明，与3-甲基丙烯酰氧基丙基三甲氧基硅烷预处理的填料复合材料或市售复合材料相比，经p-MBS预处理的填料复合材料的磨损显著降低（AP-X和ELS超低收缩率）在200，000次循环的磨损测试之后（p < 0.05）。结果表明，新型疏水性硅烷改性填料的复合材料具有较高的耐磨性，这是因为硅烷处理后的偶联剂层与基体树脂具有良好的亲合力，并在填料表面形成了一层高疏水层。(C)2007年，牙科材料学院。由爱思唯尔有限公司出版。保留所有权利。
This paper evaluated the wear resistance of resin composite materials with fillers which were modified with a novel hydrophobic silane coupling agent. The novel silane coupling agent containing hydrophobic phenyl group 3-(3-methoxy-4-methacryloyloxyphenyl)propyltrimethoxysilane (p-MBS) was synthesized. The experimental light-cure hybrid composites containing 85 wt% of filler modified with this silane were formulated. Twelve specimens were prepared for the three-body-wear test with the ACTA machine and the collected data were analyzed statistically using a one-way ANOVA and Tukey's multiple comparison test as the post hoc test.The wear of the composites containing fillers treated with p-MBS was significantly lower compared with the composite materials containing fillers pretreated with 3-methacryloyloxypropyltrimethoxysilane or the commercially composites (AP-X and ELS extra low shrinkage) after a wear test for 200,000 cycles (p < 0.05). It is suggested that the resin composites containing fillers modified with the novel hydrophobic silane has high wear resistant, because of the coupling layers treated with this silane had an excellent affinity with the base resin and formed a highly hydrophobic layer on the filler surface. (C) 2007 Academy of Dental Materials. Published by Elsevier Ltd. All rights reserved.