为在玻璃纤维表面制备透明导电薄膜,使其具有导电性的同时保持良好的透光性,采用溶胶-凝胶法制备纳米SnO2溶胶,利用浸渍提拉法在玻璃纤维表面涂覆纳米SnO2溶胶,经过热处理后在纤维表面形成纳米SnO2薄膜.利用X射线衍射仪、场发射扫描电镜、原子力显微镜、四探针法和紫外可见分光光度计分别表征纤维表面薄膜的物相结构、表面形貌、纤维电阻率以及薄膜透光率.分析了热处理温度对薄膜结构、玻璃纤维导电性能以及薄膜透光率的影响.结果表明,采用溶胶-凝胶法制备的溶胶稳定性好,最佳热处理温度为550℃,得到的薄膜晶粒平均大小为17.18 nm,纤维电阻率为1×10-5Ω·m,同时纤维表面薄膜透光率在88％左右.%For coating SnO2 thin film on the surface of glass fibers to improve the conductivity of glass fibers with good transmittance, the nano SnO2 sol was prepared by sol-gel method, and was coated on glass fibers by dipping method. The nano SnO2 thin film was formed onto the surface of glass fibers. The effects of the annealing temperature on the structure of the thin film and conductive and optical properties of the glass fibers were investigated. X-ray diffraction, scanning electron microscopy, atomic force microscopy, four-probe method and ultraviolet visible spectrophotometry were utilized to characterize the structure and morphology of the thin film, the resistivity of glass fibers and the transmittance of the thin film, respectively. The results indicated that the sol was very stable, and the optimized annealing temperature was 550 ℃ ,the mean particle size of the SnO2 thin film was 17. 18 nm, the conductivity of glass fibers was 1× 10 -5 Ω·m, and the transmittance of the thin film was about 88% .
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