| 微米TiO-2的表面改性及其分散性研究 |
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| 引用本文： | 孙 晓,吴燕喆,张瑞涵,任 丹,杨正阳,方 健.微米TiO-2的表面改性及其分散性研究[J].包装工程,2012,33(7):31-35. |
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| 作者姓名： | 孙 晓 吴燕喆 张瑞涵 任 丹 杨正阳 方 健 |
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| 作者单位： | 北京林业大学 |
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| 基金项目： | 北京林业大学科技创新计划(YX2011-2),北京林业大学本科生科技创新项目 |
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| 摘 要： | 为提高微米TiO2的分散性,采用偶联剂(KH570)法、无机包覆(铝包覆)法、超声法、非离子表面活性剂(PEG)法、阴离子表面活性剂(月桂酸钠)法,分别对微米TiO2进行表面改性。分析了改性前后微米TiO2的亲油化度、表面形态以及粒径大小。结果表明:超声法(功率90 W、时间15min、温度40℃、分散剂质量分数0.5%)和阴离子表面活性剂法(pH为5、月桂酸钠浓度0.050mol/L、时间30min)改性微米TiO2的效果比较显著,更有利于改善其分散性。
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| 关 键 词： | 微米TiO 分散性 亲油化度 粒径 |
| 收稿时间： | 2011/11/15 0:00:00 |
| 修稿时间： | 2012/4/10 0:00:00 |
Study on Surface Modification and Dispersion of Micron Titanium Dioxide |
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| SUN Xiao,WU Yan-zhe,ZHANG Rui-han,REN Dan,YANG Zheng-yang and FANG Jian.Study on Surface Modification and Dispersion of Micron Titanium Dioxide[J].Packaging Engineering,2012,33(7):31-35. |
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| Authors: | SUN Xiao WU Yan-zhe ZHANG Rui-han REN Dan YANG Zheng-yang and FANG Jian |
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| Affiliation: | (Beijing Forestry University,Beijing 100083,China) |
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| Abstract: | Surface modification of micron titanium dioxide was carried out using coupling agent(KH570) method,inorganic coating(aluminum coating) method,ultrasonic method,nonionic surfactant(PEG) method,and anionic surfactant(sodium laurate) method to improve dispersion of micron titanium dioxide.The lipophilic degree,surface morphology and particle size of micron titanium dioxide before and after modification were analyzed.The result showed that ultrasonic method(power 90 W,time 15 min,temperature 40 ℃,mass fraction of dispersant 0.5%) and anionic surfactant method(pH 5,concentration of sodium laurate 0.050 mol/L,time 30 min) are better than the other three methods;they are effective to improve the dispersion of micron titanium dioxide. |
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| Keywords: | micron titanium dioxide dispersion lipophilic degree particle size |
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