摘要
对纳米Si3N4、AlN和SiC颗粒填充聚四氟乙烯(PTFE)基复合材料表面形貌的扫描电子显微镜(SEM)图像进行处理与分割,利用颗粒分散度方法表征分割图像中纳米颗粒的团聚程度和分散性.结果表明:在3种纳米颗粒填充PTFE基复合材料中,纳米SiC的分散性最佳,纳米AlN的分散性最差;当纳米Si3N4和SiC的质量分数为7%、纳米AlN的质量分数为5%时,PTFE基复合材料的分散性较好;经钛酸酯偶联剂处理后,可使纳米Si3N4和SiC在PTFE基复合材料中的分散性提高,但会使纳米AlN在PTFE基复合材料中的分散性下降.
The sweep electron microscopy（SEM） image was processed and segmented to nano Si3N4,SiC,and AlN-modified PTFE composites.Agglomeration degree and dispersed uniformity of the nano-particles in the image were quantatively segmented using particle dispersion method.The results show that the dispersed uniformity of these three nano-particle decreases as follows： nano-SiC,and nano-Si3N4,nano-AlN.Under the condition of 7% of nano-Si3N4 and nano-SiC and 5% of nano-AlN,the dispersed uniformity in PTFE is better.By processing coupling agent NDZ,the agglomeration degree of nano-particles in PTFE will decrease,the dispersed formity of nano-Si3N4 and nano-SiC in PTFE will be improved,but the dispersed formity of nano-AlN in PTFE will decrease.
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
2011年第9期1411-1415,共5页
Journal of Shanghai Jiaotong University
基金
高等学校博士点基金项目(20060307002)
中央高校基本科研业务费专项基金资助项目(KYZ200921)
