• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Colloid and Interface Science >Kinetics of particle adsorption in stagnation point flow studied by optical reflectometry
【24h】

Kinetics of particle adsorption in stagnation point flow studied by optical reflectometry

机译：光学反射法研究滞点流中颗粒的吸附动力学

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The kinetics of adsorption of nano-sized silica particles on a polymer pretreated surface were followed in situ by using optical reflectometry in a stagnation point flow setup. Conversion of the reflectometric signal to the surface coverage could be performed using a homogeneous slab model which was verified by determining the particle density on SEM pictures taken in the stagnation point and by comparison with a model which includes the particulate nature of the layer explicitly. The effects of salt concentration on the plateau adsorbed amounts for all particle sizes can be described with an effective hard sphere concept, Although initial slopes and plateau values are in reasonable agreement with a random sequential adsorption model, this model does not accurately describe the evolution of the surface coverage as a function of time in a stagnation point flow system. (C) 1998 Academic Press. [References: 22]
机译：通过在停滞点流动装置中使用光学反射仪原位追踪纳米尺寸的二氧化硅颗粒在聚合物预处理的表面上的吸附动力学。可以使用均匀平板模型执行反射信号到表面覆盖率的转换，该平板模型通过确定在停滞点拍摄的SEM照片上的颗粒密度并与包含层的颗粒性质的模型进行比较来验证。盐浓度对所有粒径的平台吸附量的影响可以用有效的硬球概念来描述。尽管初始斜率和平台值与随机顺序吸附模型在合理范围内一致，但该模型无法准确描述在停滞点流系统中，表面覆盖率是时间的函数。 （C）1998年学术出版社。 [参考：22]

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号