| HSi-g-A151的制备及其对纳米Si_3N_4的表面改性 |
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| 引用本文： | 桂君,钱家盛,魏强,章于川. HSi-g-A151的制备及其对纳米Si_3N_4的表面改性[J]. 安徽大学学报(自然科学版), 2011, 0(1): 79-84 |
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| 作者姓名： | 桂君 钱家盛 魏强 章于川 |
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| 作者单位： | 安徽大学化学化工学院安徽省绿色高分子材料实验室; |
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| 基金项目： | 国家支撑计划课题资助项目(2007BAE22B02,2007BAE22B01) |
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| 摘 要： | 通过甲基含氢硅油与乙烯基硅氧烷(A151)的接枝反应,制备大分子硅氧烷偶联剂(HSi-g-A151),并用其对纳米Si3N4粉体进行表面修饰,通过沉降实验、透射电镜分析、粒度测定、热重分析和表面自由能分析等手段对改性前后的粉体进行表征.结果表明:大分子硅烷偶联剂对纳米Si3N4粉体为化学改性,改性后的纳米Si3N4粉体在二甲苯中悬浮稳定,粒径分布在30 nm左右,纳米颗粒表面自由能由79.8 J.m-2下降到39.4 J.m-2.
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| 关 键 词： | 纳米氮化硅 大分子表面偶联剂 表面改性 |
Surface modification of nano-Si3N4 with HSi-g-A151 |
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| GUI Jun,QIAN Jia-sheng,WEI Qiang,ZHANG Yu-chuan. Surface modification of nano-Si3N4 with HSi-g-A151[J]. Journal of Anhui University(Natural Sciences), 2011, 0(1): 79-84 |
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| Authors: | GUI Jun QIAN Jia-sheng WEI Qiang ZHANG Yu-chuan |
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| Affiliation: | GUI Jun,QIAN Jia-sheng,WEI Qiang,ZHANG Yu-chuan(College of Chemistry and Chemical Engineering,Key Laboratory of Environment-friendly Polymer Materials of Anhui Province,Anhui University,Hefei 230039,China) |
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| Abstract: | By the graft reaction of methyl hydrogen silicone oil with vinyl siloxane(A151),the macromolecular silane coupling agent(HSi-g-A151) was prepared,and the surface of nano-Si3N4 was modified with it.The properties of modified and unmodified nano-Si3N4 were investigated by depositing sediment,FT-IR,TEM,particle size distribution,TGA,and surface energy etc.The results showed that,the surface modification was chemical reaction;the modified nano-Si3N4 powder was dispersed stability in xylene,the dispersed mean di... |
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| Keywords: | nano-Si3N4 silane coupling agent surface modification |
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