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.
SUN Xiao,WU Yan-zhe,ZHANG Rui-han,REN Dan,YANG Zheng-yang,FANG Jian.Study on Surface Modification and Dispersion of Micron Titanium Dioxide[J].Packaging Engineering,2012,33(7):31-35. |
| 微米TiO-2的表面改性及其分散性研究 |
| Study on Surface Modification and Dispersion of Micron Titanium Dioxide |
| 投稿时间：2011-11-15 修订日期：2012-04-10 |
| DOI： |
| 中文关键词: 微米TiO-2 分散性 亲油化度 粒径 |
| 英文关键词: micron titanium dioxide dispersion lipophilic degree particle size |
| 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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| 中文摘要: |
| 为提高微米TiO-2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TiO-2进行表面改性。分析了改性前后微米TiO-2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15 min、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0.050 mol/L、时间30 min）改性微米TiO-2的效果比较显著，更有利于改善其分散性。 |
| 英文摘要: |
| 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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