玄武岩纤维表面生长碳纳米管及其复合材料性能的研究

Basalt Fiber with Carbon Nanotubes Grown on Its Surface and the Corresponding Reinforced Resin Composite

针对玄武岩纤维(CBF)表面光滑且惰性,在与树脂基体复合制备复合材料时二者结合能力较低的问题,采用化学镀镍在玄武岩纤维表面均匀加载镍催化剂,借助化学气相沉积(CVD)生长碳纳米管(CNTs)。用场发射扫描电镜(FESEM)、透射电镜(TEM)、拉曼光谱(Raman)等方法对生长的CNTs进行表征,并测试复合材料的界面剪切强度。结果表明化学镀镍工艺能在CBF表面均匀加载镍催化剂,有利于CVD生长CNTs。工艺最佳条件为施镀时间15min、500℃下生长10min,此条件下生长的CNTs整齐排列在CBF表面,结晶性较好且呈中空管状。采用生长了CNTs的CBF制备复合材料的界面强度提高了10%。

Because of the smooth surface and inertia of CBF, the combination between the fiber and resin is low when preparing composite. In this article, the method of electroless plating nickel was used to load nickel catalyst uni- formly on the surface of CBF, the specified temperature for the growth of carbon nanotubes （CNTs） by chemical va- por deposition （CVD） was found. Field emission scanning electron microscopy （FESEM）, transmission electron mi- croscope （TEM）, Raman spectroscopy （Raman）, shear strength testing and other methods were used to characterize the CNTs growing on the surface of CBK The results showed that the electroless nickel plating technology could load nickel catalyst uniformly on the CBF surface. The best technology is.. the plating time is 15 min, the CNTs growth under 500 ℃ for 10 min is lined up on the surface of CBF, the crystal properties of CNTs with the hollow tubes is bet- ter. At the same time, the shear strength of composite with CBF grown CNTs increased by 10% when compared with the untreated.