The present invention relates to a surface modification method of SiC nanowires. The surface modification of SiC nanowires is made by spherical carbon and calcium phosphate microstrip. The surface of spherical carbon is formed by high temperature oxidation and hydrous oxidation of spherical carbon. The mechanical binding of spherical carbon, on the other hand, makes the surface of the spherical carbon form an oxygen containing functional group, which promotes the formation of a chemical bond between the spherical carbon surface and the calcium phosphorus micron band. On the one hand, the chemical components of calcium and phosphorus microstrip keep the chemical components of calcium and phosphorus phase, and their chemical components are consistent with the inorganic chemical components of human skeleton, which can effectively improve the biological activity of SiC nanowires. On the other hand, calcium and phosphorus are micrometer banded, and the size of calcium and phosphorus is consistent with the morphology of the inorganic phase of human skeleton, which can help to improve the response behavior of cells and the behavior of tissue reaction.
【技术实现步骤摘要】
一种SiC纳米线的表面改性方法
本专利技术属于一种生物材料的制备方法,涉及一种SiC纳米线的表面改性方法。
技术介绍
SiC纳米线的密度低并具有高强度、高硬度等优异的力学性能,因而被广泛应用做增强相材料。文献1“Y.H.Chu,Q.G.Fu,H.J.Li,etal.EffectofSiCnanowiresonthemechanicalandoxidationprotectiveabilityofSiCcoatingforC/Ccomposites.JournaloftheAmericanCeramicSociety,2012,95(2):739-745”报道了将SiC纳米线用于陶瓷涂层的增强相,通过SiC纳米线的拔出、桥连以及裂纹偏转机制有效提高了陶瓷涂层的强度和韧性。SiC纳米线除了具备优异的力学性能之外,其还具有良好的生物学性能,文献2“L.Wu,X.X.Xu,L.Z.Wang,etal.StudyoncytocompatabilityandanimalimplantationtestoffoamSiC,JournalofInorganicMaterials.:2010(25):211-215”报道了SiC可以与成骨细胞形成良好的交互作用。文献3“P.Aspenberg,A.Anttil,Y.T.Konttinen,etal.BenignresponsetoparticlesofdiamondandSiC:bonechamberstudiesofnewjointreplacementcoatingmaterialsinrabbits,Biomateri ...
【技术保护点】
一种SiC纳米线的表面改性方法,其特征在于步骤如下:步骤1:将SiC纳米线置于沉积炉中,通入流量为1.5~2.5升/分钟的氩气,然后以4~6度/分钟的升温速度升温至950~1100度,然后通入流量为0.8~1.2升/分钟的甲烷,保温5~15分钟后停止通入甲烷并关闭高温炉,随炉冷却得到产品A;步骤2:将电阻炉以4~6度/分钟的升温速度升温至400~500度,将产品A放置入电阻炉中高温处理10~60秒后得到产品B;步骤3:将产品B置于电阻炉中,通入流量为0.1~1.0升/分钟的氩气,然后以4~8度/分钟的升温速度升温至350~450度,然后以0.1~0.5毫升/分钟的速度向电阻炉中加入蒸馏水,保温5‑30分钟后停止加入蒸馏水并关闭电阻炉,随炉冷却得到产品C;步骤4:将磷酸二氢铵溶于去离子水中配制成1~3毫摩尔/升的溶液,然后按照硝酸钙和磷酸二氢铵的摩尔比为1.0~2.0加入硝酸钙,然后搅拌均匀得到溶液;步骤5:将产品C置于溶液中,然后加热至温度为60~70度,以产品C为电化学反应的阴极,以石墨片为电化学反应的阳极,阴极与阳极之间距离为10~30毫米,在阴极和阳极之间施加脉宽为10~50毫秒 ...
【技术特征摘要】
1.一种SiC纳米线的表面改性方法,其特征在于步骤如下:步骤1:将SiC纳米线置于沉积炉中,通入流量为1.5~2.5升/分钟的氩气,然后以4~6度/分钟的升温速度升温至950~1100度,然后通入流量为0.8~1.2升/分钟的甲烷,保温5~15分钟后停止通入甲烷并关闭高温炉,随炉冷却得到产品A;步骤2:将电阻炉以4~6度/分钟的升温速度升温至400~500度,将产品A放置入电阻炉中高温处理10~60秒后得到产品B;步骤3:将产品B置于电阻炉中,通入流量为0.1~1.0升/分钟的氩气,然后以4~8度/分钟的升温速度升温至350~450度,然后以0.1~0.5毫升/分钟的速度向电阻炉中加入蒸馏水,保温5-30分钟后停止加入蒸馏水并关闭电阻炉,随...
【专利技术属性】
技术研发人员:张磊磊,郭瑶,李贺军,李克智,
申请(专利权)人:西北工业大学,
类型:发明
国别省市:陕西,61
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