碳纳米管在碳纳米管/树脂基复合材料中分散度的光学显微数值分析方法

The numerical analysis method of CNTs dispersion in CNTs/polymer composite by light microscopy

碳纳米管(CNTs)在树脂应用中容易发生缠结和团聚,大大降低了其在树脂基复合材料中作为增强材料的应用效果,因此,CNTs在树脂基复合材料中分散度的表征是研究和改善其分散性能的重要基础。引入一种基于Image J软件分析的CNTs/树脂基复合材料的光学显微分析方法模型,使用3D MAX对不同厚度CNTs/树脂基复合材料进行模拟。此外,还以不同质量比的CNTs/聚苯乙烯-聚(2-乙烯基吡啶)(CNTs/PS-b-P2VP)复合材料样品作为实例,并使用引入的分析方法模型对CNTs的分散度计算,结果表明当PS-b-P2VP含量增加时,CNTs分散度得到明显提升,说明该模型方法符合实际分析结果。

Carbon nanotubes(CNTs)are prone to entanglement and agglomeration during the application process which significantly hinders their application effects as reinforced material.Consequently,the characterization of CNTs’ dispersion in polymer matrix is an essential basement to investigate and improve their dispersion.An optical microscopic analysis model of CNTs/polymer composite based on Image J was introduced.Furthermore,3D MAX was used to simulate CNTs/polymer composites with different thicknesses.In addition,CNTs/polystyrene poly(2-vinylpyridine)(PS-b-P2VP)composites with different mass ratios were prepared and taken as examples,and the dispersion of CNTs was calculated using the introduced analytical method model.The result demonstrated that as the content of PS-b-P2VP increased,the dispersion of CNTs significantly improved,indicating that the model method was in line with the actual analysis results.