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材料工程  2005 

低温等离子体对NiTi形状记忆合金的表面改性

Keywords: 镍钛合金,低温等离子体,类PEG结构,蛋白质吸附

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Abstract:

在微波电子回旋共振低温等离子体条件下,用二乙二醇二甲醚为试剂对镍钛合金进行表面改性。在表面得到一层均匀、致密的固体薄膜。经过X射线光电子能谱和衰减全反射傅立叶变换红外光谱的分析和表征,发现沉积的涂层为类PEG结构,表面主要聚集大量—CH2—CH2—O键;血浆蛋白吸附实验显示,与改性前相比,等离子体沉积在镍钛合金表面的类PEG涂层能够有效抵抗蛋白质吸附。

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