| 乳状液法制备憎液溶胶Ⅰ.BaCO_3均匀粒子的制备 |
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| 引用本文： | 于洺,张玉亭.乳状液法制备憎液溶胶Ⅰ.BaCO_3均匀粒子的制备[J].物理化学学报,1997(1). |
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| 作者姓名： | 于洺 张玉亭 |
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| 作者单位： | 天津纺织工学院材料科学系!天津，300160，天津纺织工学院材料科学系!天津，300160 |
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| 摘 要： | 均匀胶体粒子的形成，除与反应条件（反应物浓度、陈化时间和温度、介质种类等）有关外，反应体系的环境也影响最终产物的形态，《至结晶结构．气溶胶法和微乳液法正是利用微环境中的‘水池效应”；分别制备出球形亚微米和纳米级的均匀粒子［‘－‘］、这些方法与水解法和相转化法等方法比较，反应物浓度要大几个数量级，而反应时间却短很多，因而受到研究人员的关注．乳状液也能提供亚微米、微米及以上级的微环境，因此，可以应用O／W乳状液乳液中的聚合反应制备亲液的分散体系．然而，极少有关利用w／O乳状液制备僧液溶胶的报导问；最近…
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| 关 键 词： | 乳状液 水池效应 水相比 碰撞聚集 |
Preparation of Hydrophobic Sols by Method of Emulsion |
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| Yu Ming,Zhang Yuting.Preparation of Hydrophobic Sols by Method of Emulsion[J].Acta Physico-Chimica Sinica,1997(1). |
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| Authors: | Yu Ming Zhang Yuting |
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| Abstract: | Uniform colloidal particles of BaCO3 are produced in the system of n-octanol,BaCl2 and Na2CO3 aqueous solutions under the action of hexadecyltrimethyammonium bromide(CTAB) by the methods of single-emulsion, double-emulsion, solution and gasblasting. The key factors, which determine the size, shape and uniformity of the particles,as well as the suitable methods to prepare uniform colloidal particles are figured out by comparing different (water-oil) phase ratios, kinetics of particles' growth and differentmethods of preparing hydrophobic sols. |
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| Keywords: | Emulsion Pool-effect Phase ratio Collision coagulation |
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