摘要
采用浸涂法在硅烷偶联剂表面改性的TiNi合金表面制备环氧树脂/聚四氟乙烯涂层,研究不同硅烷偶联剂对涂层附着力的影响规律。揭示了硅烷偶联剂提高涂层附着力的机制。考察涂层牙弓丝的生物相容性及涂层对TiNi合金中Ni离子析出的影响,并对比涂层与未涂层牙弓丝在口腔正畸中的效果。结果表明:硅烷偶联剂的浓度对涂层与TiNi合金之间的附着力有显著影响,并且随着浓度的增加,附着力先增大后减小。EP/PTFE涂层有效地抑制TiNi合金中Ni离子的析出,同时具有良好的生物相容性。
The epoxy resin（EP）/polytetrafluoroethylene（PTFE） coatings were made on the silane coupling agent modified TiNi alloy teeth corrective wires by dipping.The influence of silane coupling agent concentration on the adhesion force between the coatings and TiNi alloys was investigated,and the mechanism of the improvement of the adhesion force due to the induction of the silane coupling agent was revealed.The effect of epoxy resin（EP）/polytetrafluoroethylene（PTFE） coatings on the biocompatibility and Ni ions release from the TiNi alloys was investigated.In addition,the difference between the coated and uncoated TiNi alloy teeth corrective wires was compared.The results show that the concentation of silance coupling agent has a great influencer on the adhension force between the coating and TiNi alloy.With the increase of the concentation,the adhension force increases first,then decreases.EP/PTFE coating can inhibit Ni ions precipitation from TiNi alloy,and has a good biocompatibility.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2012年第5期822-825,共4页
Rare Metal Materials and Engineering
基金
国家自然科学基金(50801018)
关键词
TiNi合金牙弓丝
涂层
附着力
生物相容性
TiNi alloy teeth corrective wires
coatings
adhesion force
biocompatibility
