摘要
分别采用双螺杆挤出机和密炼机制备绝缘母料,再将绝缘母料制备成高压直流电缆绝缘料,通过透射电镜(TEM)和Image J软件定量分析直流料中纳米粒子的分散性能,并测试直流料的电气性能。结果表明:通过TEM图像的定性分析难以判断纳米复合直流料中纳米粒子的分布和分散程度,采用Image J软件可以提取TEM图中纳米粒子的特征数据,从而能够定量分析纳米粒子的分散性能;与采用密炼机制备绝缘母料的直流料相比,采用双螺杆挤出机制备绝缘母料的直流料中纳米粒子分布更均匀,分散更好,其电气性能更优。
The insulation master batch was prepared by twin-screw extruder and internal mixer,and then it was used to prepare HVDC cable insulation.The dispersing property of nanoparticles in insulation was quantitatively analyzed by transmission electron microscope(TEM)and Image J software,and the electrical properties of insulation were tested.The results show that it is difficult to determine the dispersion and distribution degree of nanoparticles in nano-composite DC materials by qualitative analysis through TEM,while the characteristic data of nanoparticles in TEM images can be extracted by Image J,so as to quantitatively analyze the dispersion properties of nanoparticles.Compared with DC material using the master batch prepared by internal mixer,the DC material using the master batch by twin-screw extruder have better electrical properties,and nanoparticles are more evenly distributed and better dispersed in it.
作者
曾浩
高凯
王传博
朱智恩
杨黎明
ZENG Hao;GAO Kai;WANG Chuanbo;ZHU Zhien;YANG Liming(NARI Group Corporation(State Grid Electric Power Research Institute),Nanjing 211106,China)
出处
《绝缘材料》
CAS
北大核心
2022年第4期42-47,共6页
Insulating Materials
基金
国家电网有限公司总部科技项目(5500-201958320A-0-0-00)。
关键词
绝缘料
纳米粒子
分散性能
电气性能
insulation material
nanoparticles
dispersing property
electrical properties
