| Nano-Si_3N_4陶瓷粉体表面有机化改性研究 |
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| 引用本文： | 张士润. Nano-Si_3N_4陶瓷粉体表面有机化改性研究[J]. 广东化工, 2014, 0(6): 13-14,18 |
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| 作者姓名： | 张士润 |
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| 作者单位： | 安徽大学化学化工学院,安徽合肥230039 |
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| 摘 要： | 文章采用硅烷偶联剂KH-845-4包覆改性纳米Si3N4陶瓷粉体,通过沉降实验、IR、TG、粒度测定等分析测试手段研究了改性前后粉体的溶剂中悬浮稳定性、热重、粒度分布等物性。结果表明:KH-845-4改性纳米Si3N4粉体为化学改性,添加量为10%时,粉体在甲苯中悬浮性最好;粉体改性后粒径降低,为纳米级分布。
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| 关 键 词： | nano-SiN 表面改性 分散性 稳定性 |
Surface Modification of Nano-silicon Nitride Powder |
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| Zhang Shirun. Surface Modification of Nano-silicon Nitride Powder[J]. Guangdong Chemical Industry, 2014, 0(6): 13-14,18 |
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| Authors: | Zhang Shirun |
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| Affiliation: | Zhang Shirun (Anhui University, Hefei 230039, China) |
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| Abstract: | An available surface modification process of nano-Si3N4 was given using NDZ-102 as modifying agent and petroleum ether as dispersion medium. The effects of KH-845-4 weight on the stability, thermalanlysis, panicle size distribution and surface energy were analyzed by the process of depositing sediment, TG, IR, and so on. The results show, the surface modification was chemical reaction; nano-Si3N4 suspension was of the greatest stability when the nano-Si3N4 powder was modified with proper amount of NDZ-102, which was 10 %（wt） of the amount of nano-Si3N4 powder; the panicles in the modified powder has better dispersive and the surface energy was reduced. |
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| Keywords: | nano-Si3N4 KH-845-4 surface modification dispersibility stability |
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