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硅烷偶联剂对碳化硅粉体的表面改性
作者:铁生年 李星 
单位:青海大学非金属材料研究所 西宁 810016 
关键词:碳化硅 表面改性 硅烷偶联剂 分散性 
分类号:TQ174
出版年,卷(期):页码:2011,39(3):409-413
DOI:
摘要:

采用KH-550硅烷偶联剂对SiC粉体表面进行改性,得到了改性最佳工艺参数,分析了表面改性对SiC浆料分散稳定性的影响。结果表明:SiC微粉经硅烷偶联剂处理后没有改变原始SiC微粉的物相结构,只改变了其在水中的胶体性质;减少了微粉团聚现象。与原始SiC微粉相比,改性SiC微粉表面特性发生了明显变化,Zeta电位绝对值提高,浆料的分散稳定性得到了明显改善。

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The surface characteristics of SiC powder were modified by a KH-550 silane coupling agent. The process parameters of the modification were optimized, and the effect of surface modification on the dispersion stability of SiC slurry was analyzed. The results show that the SiC powder modified by silane coupling agent can not change the original phase structure of SiC micro-powders but reduce the aggregation of SiC particles in the powders. Compared to the original SiC powder, the surface characteristics of the modified SiC powder change significantly. Zeta potential of SiC increases, and the dispersion stability of SiC slurry is improved.

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基金项目:
青海省外经贸区域协调发展促进资金项目(2009-2160604)资助
作者简介:
教授
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参考文献:

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