摘要
以去离子水、无水乙醇为分散介质,以焦磷酸钠(SPP)、吐温80(Tween80)和硅烷偶联剂(KH550)为分散剂,配置了三种不同的分散溶液,采用先酸洗而后超声震荡、磁力搅拌的方法,对晶须进行分散处理,并通过电镜观察分散效果。结果表明:1%KH550-无水乙醇分散溶液分散效果较好;短时间的超声震荡和磁力搅拌,有助于SiCW在分散溶液中的分散。
The dispersion of silicon carbide whisker （SiCw） was researched using three different dispersed solutions： using distilled water and ethanol as the dispersing medium, using sodium pyrophosphate （SPP）, Tween80 and silane coupling agent （KH550） as the dispersing agent. Three methods acid-washed, ultrasonic shaking and magnetic stirring were adopted to disperse the SiCw, and it was observed by electron microscopy. The results indicate that 1% （in volume） KH550-ethanol solution is the best, however, ultrasonic shaking and magnetic stirring in a short time is contributed to the dispersion.
出处
《铸造技术》
CAS
北大核心
2013年第7期800-802,共3页
Foundry Technology
基金
郑州市科技攻关项目(20120326)
郑州市科技创新团队项目(10CXTD159)
关键词
碳化硅晶须
超声分散
焦磷酸钠
吐温80
硅烷偶联剂
silicon carbide whisker
ultrasonic dispersion
sodium pyrophosphate
Tween80
silane coupling agent
