| 三元共聚物对纳米Si_3N_4粉体表面改性的研究 |
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| 引用本文： | 张苏,钱家盛,章于川.三元共聚物对纳米Si_3N_4粉体表面改性的研究[J].安徽大学学报(自然科学版),2009,33(1). |
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| 作者姓名： | 张苏 钱家盛 章于川 |
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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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| 基金项目： | 国家科技攻关项目，安徽省自然科学基金 |
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| 摘 要： | 采用自制的三元共聚物BA-MMA-GMA作为大分子改性剂对纳米Si3N4粉体进行表面包覆处理,利用红外、热重分析、粒径分布、接触角、透射电镜分析等手段进行表征.结果表明:三元共聚物与纳米粉体间既存在化学键合,也存在物理包覆,可以有效阻止纳米Si3N4粉体的团聚.改性后的纳米粉体表面自由能显著降低,在有机溶剂中的分散稳定性显著增加.
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| 关 键 词： | 纳米氮化硅粉体 三元共聚物 分散性 稳定性 |
Research of BA-MMA-GMA terpolymer as surface treatment agent for nano-Si_3N_4 powder |
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| ZHANG Su,QIAN Jia-sheng,ZHANG Yu-chuan.Research of BA-MMA-GMA terpolymer as surface treatment agent for nano-Si_3N_4 powder[J].Journal of Anhui University(Natural Sciences),2009,33(1). |
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| Authors: | ZHANG Su QIAN Jia-sheng ZHANG Yu-chuan |
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| Institution: | College of Chemistry and Chemical Engineering;Anhui University;Hefei 230039;China |
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| Abstract: | The method using self-regulating BA-MMA-GMA terpolymer as surface coating treatment agent for nano-Si3N4 powder was introduced.The powder was characterized with FTIR,TG,size distribution,contact angle,TEM ect.The results showed that there were chemical and physical reaction between treatment agent and nano powder,it was useful for preventing from the agglomeration of nano powder.These modified nano-Si3N4 could disperse in organic solvent easily and the surface energy was reduced obviously. |
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| Keywords: | nano-Si3N4 powder terpolymer dispersibility stability |
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