• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>RIAO/OPTILAS 2004 >Real-time optical monitoring of the dip coating process
【24h】

Real-time optical monitoring of the dip coating process

机译：实时光学监控浸涂工艺

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

A significant part of film production by the coating industry is based on wet bench processes, where better understanding of their temporal dynamics could facilitate control and optimization. In this work, in situ laser interferometry is applied to study properties of flowing liquids and quantitatively monitor the dip coating batch process. Two oil standards -Newtonian, non-volatile, with constant refractive indices and distinct flow properties - were measured under several withdrawing speeds. The dynamics of film physical thickness then depends on time as t~(-1/2), and flow characterization becomes possible with high precision (linear slope uncertainty of ±0.04%). Resulting kinematic viscosities for OP60 and OP400 are 1,17 ± 0,03 St and 9,9 ± 0,2 St, respectively. These results agree with nominal values, as provided by the manufacturer. For more complex films (a multi-component sol-gel Zirconyl Chloride aqueous solution) with a varying refractive index, through a direct polarimetric measurement, allowing also determination of the temporal evolution of physical thickness (uncertainty of ± 0,007 microns) is also determined during dip coating.
机译：涂料工业生产的薄膜中有很大一部分是基于湿式工作台工艺，通过对湿式工作台工艺的更好了解，可以促进控制和优化。在这项工作中，采用原位激光干涉法研究流动液体的性质并定量监控浸涂批处理过程。在几种抽提速度下，测量了两种石油标准品-牛顿油，不挥发油，具有恒定的折射率和明显的流动特性。然后，薄膜物理厚度的动力学取决于时间，即t〜（-1/2），并且可以以高精度（线性斜率不确定度为±0.04％）进行流量表征。 OP60和OP400的最终运动粘度分别为1.17±0.03 St和9.9±0.2St。这些结果与制造商提供的标称值一致。对于具有不同折射率的更复杂的薄膜（多组分溶胶-凝胶氯化锆水溶液），通过直接极化测量，还可以确定物理厚度随时间的变化（不确定度为±0.007微米）。浸涂。

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