| 纳米TiO2和微米SiO2改性及分散性能的研究 |
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| 引用本文： | 慕科仪,赵国樑,周伟.纳米TiO2和微米SiO2改性及分散性能的研究[J].合成纤维工业,2011,34(1):5-8. |
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| 作者姓名： | 慕科仪 赵国樑 周伟 |
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| 作者单位： | 北京服装学院,材料科学与工程学院,北京,100029 |
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| 基金项目： | 北京市属高等学校人才强教计划资助项目 |
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| 摘 要： | 采用不同的分散工艺和改性剂对纳米TiO2和微米SiO2粉体进行处理,使用激光粒度仪、红外光谱(IR)、热失重(TG)等手段对粉体粒径,粉体表面结构进行表征,探讨了超微粉体在乙二醇(EG)中分散的最佳工艺.结果表明:钛酸酯偶联剂(NDZ-201)可在纳米TiO2表面接枝,接枝率约为6%;硅烷偶联剂(KH570)可在微米S...
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| 关 键 词： | 纳米二氧化钛 微米二氧化硅 偶联剂 改性 分散 乙二醇 |
Modification and dispersion behavior of nano-TiO2 and micro-SiO2 |
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| Mu Keyi,Zhao Guoliang,Zhou Wei.Modification and dispersion behavior of nano-TiO2 and micro-SiO2[J].China Synthetic Fiber Industry,2011,34(1):5-8. |
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| Authors: | Mu Keyi Zhao Guoliang Zhou Wei |
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| Abstract: | The modification of nano-TiO_2 and micro-SiO_2 was conducted using different dispersion processes in presence of different modifiers.The particle size and surface structure of nano-TiO_2 and micro-SiO_2 powders were characterized by laser granulometer, infrared spectrometry(IR),thermogravimetry(TG).The optimal dispersion process of ultramicro particle was discussed in ethylene glycol.The results showed that titanate coupling agent(NDZ-201) can be grafted on the surface of nano-TiO_2 with the graft ratio about 6%when silane coupling agent(KH570) can be grafted on the surface of micro-SiO_2 with the graft ratio about 9%.The surface modification process were optimized as followed;zirconium bead diameter 1 mm,4%NDZ-201 by mass fraction,grinding time 30 min for nano-TiO_2;and steel bead diameter 6 mm,2%KH570 by mass fraction and grinding time 30 min for micro-SiO_2. |
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| Keywords: | nano-titanium dioxide micro-silicone dioxide coupling agent modification dispersion ethylene glycol |
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