摘要
以分形理论为基础,以信息维数为测度对碳纳米管薄膜中的碳纳米管分散均匀性进行评价,运用MATLAB软件对碳纳米管薄膜SEM图像进行二值化,图像叠加,直线拟合等处理,求出直线的斜率,其斜率的绝对值即信息维数DI,将DI作为评定碳纳米管分布均匀性参数,其值越接近于2,其分布越均匀。将该理论应用于不同工艺下生产的碳纳米管薄膜,证明其可行性。
Based on the fractal theory, the uniformity of carbon nanotube dispersed in carbon nanotube film is measured by the information dimension. With the MATLAB software, the SEM images of carbon nanotube film are processed with the methods of binarization, overlapping and fitting. And the absolute value of the straight line gradient, i. e. the information dimension, is calculated. The information dimension is made as the parameter of carbon nanotubes distribution uniformity. The closer its value is to 2, the more even the distribution of the carbon nanotubes is. Its feasibility was proved by the production of carbon nanotube film under different process.
出处
《沈阳航空航天大学学报》
2014年第3期49-52,共4页
Journal of Shenyang Aerospace University
基金
辽宁省航空科学基金(项目编号:2012ZD54)
关键词
碳纳米管薄膜
信息维数
分布均匀性
carbon nanotube film
information dimension
distribution uniformity
