Photo from wikipedia
Abstract This study shows that a heat gradient can produce a surface flow on a surfactant layer. The flow was directly observable via a movement of a floating Teflon ball.… Click to show full abstract
Abstract This study shows that a heat gradient can produce a surface flow on a surfactant layer. The flow was directly observable via a movement of a floating Teflon ball. A model was developed to quantify the driving force. The model indicated that the movement was generated by the local tension on the surfactant layer and adhesion between Teflon and the layer. The phenomenon is similar to Marangoni effect, but it is more applicable for industrial surfactants. In particular, the thermal-generated surface flow can open up a new avenue to manipulate the thermal response of the surfactant layer.
Journal Title: Colloids and Surfaces A: Physicochemical and Engineering Aspects
Year Published: 2017
Link to full text (if available)
Share on Social Media: Sign Up to like & get
recommendations!