• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >Water droplet on inclined dusty hydrophobic surface: influence of droplet volume on environmental dust particles removal
【24h】

Water droplet on inclined dusty hydrophobic surface: influence of droplet volume on environmental dust particles removal

机译：倾斜粉尘疏水表面上的水滴：液滴体积对去除环境粉尘颗粒的影响

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 water droplet's behavior on an inclined hydrophobic surface in the presence of environmental dust particles is considered and the droplet's dynamics are analyzed pertinent to self-cleaning applications. A polycarbonate wafer is crystallized using the solution-crystallization method to generate hierarchically distributed micro/ nano-sized spherules and pillars on the surface. To improve the wetting state and lower the contact angle hysteresis, functionalized silica particles are synthesized and, later, deposited on the crystallized surface. Environmental dust particles are collected and characterized in terms of elemental composition, size and shape. A high-speed camera is used to monitor a water droplet's behavior on the inclined hydrophobic surface with and without the presence of dust particles. The influence of droplet volume on the dust particle removal rate from the inclined hydrophobic surface is assessed. It is found that the functionalized silica particles deposited on the surface result in a droplet contact angle in the order of 158 +/- 2 degrees and contact angle hysteresis of 2 +/- 1 degrees. The water droplet mainly rolls on the inclined hydrophobic surface and the sliding velocity remains almost 13% of the transverse velocity of the droplet. Droplet wobbling is influenced by the dust particles and the droplet size; in which case, increasing the droplet volume enhances the droplet puddle thickness on the hydrophobic surface. The cloaking of the droplet fluid onto the dust particles causes mixing of the dust particles with the droplet fluid while enhancing the particle removal from the hydrophobic surface. Increasing the droplet volume slightly enhances the size of the area of the cleaned surface.
机译：考虑了在存在环境粉尘颗粒存在下倾斜疏水表面上的水滴的行为，并与自清洁应用进行了液滴的动力学。使用溶液结晶法结晶聚碳酸酯晶片，以产生分布分布的微/纳米尺寸球和表面上的柱。为了改善润湿状态并降低接触角滞后，合成官能化的二氧化硅颗粒，后面沉积在结晶的表面上。收集环境粉尘颗粒，其特征在于元素组成，尺寸和形状。高速相机用于监测倾斜疏水表面上的水滴的行为，并且没有灰尘颗粒的存在。评估液滴体积对来自倾斜疏水表面的粉尘颗粒去除率的影响。发现沉积在表面上的官能化二氧化硅颗粒导致液滴接触角，大约为158 +/- 2度，接触角滞后2 +/- 1度。水滴主要在倾斜的疏水表面上滚动，滑动速度仍然是液滴横向速度的近13％。液滴摆动受尘埃颗粒和液滴尺寸的影响;在这种情况下，增加液滴体积可以增强疏水表面上的液滴熔屑厚度。将液滴流体的固化在粉尘颗粒上导致粉尘颗粒与液滴混合，同时增强从疏水表面的颗粒去除。增加液滴体积略微增强清洁表面区域的尺寸。

著录项

  • 来源
    《RSC Advances》 |2019年第7期|共15页
  • 作者

    Abdelmagid Ghassan; Yilbas Bekir Sami; Al-Sharafi Abdullah; Al-Qahtani H.; Al-Aqeeli Nasser;

  • 作者单位

    King Fahd Univ Petr &

    Minerals Mech Engn Dept Dhahran Saudi Arabia;

    King Fahd Univ Petr &

    Minerals Mech Engn Dept Dhahran Saudi Arabia;

    King Fahd Univ Petr &

    Minerals Mech Engn Dept Dhahran Saudi Arabia;

    King Fahd Univ Petr &

    Minerals Mech Engn Dept Dhahran Saudi Arabia;

    King Fahd Univ Petr &

    Minerals Mech Engn Dept Dhahran Saudi Arabia;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

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