Research On Particle Adhesion And Removal Of Bee Wing Surfaces

The research on particle adhesion and removal become a hot spot because of exhaust emission and smog skies.The mechanism of particle removal includes chemical mechanism and physical mechanism.At present,the study of particle removal is mainly focused on the field of chemical mechanism,and changing the surface properties of solids to achieve the purpose of reducing adhesion and removing the particles easily.However,the solid surface properties are unstable by chemical methods,and the surface properties are stable by physical methods.In recent years,domestic and foreign scholars have studied the self-cleaning mechanism of butterfly and dragonfly wing surfaces.This paper take the bee wings as the research object and study on the mechanism of particle adhesion and clearance on the surface of bee wings.Firstly,the paper describe biological characteristics of honeybee and making bees specimen.Observing the microstructure on wing surfaces of bee?mantis?dragonflies and locusts by the scanning electron microscope and light microscope.Analyzing the microscopic parameters of each wing surface and getting the differences between them.Secondly,to research on adhesion and removal between particles(drops)and wing surface by Optical Contact Angle Measuring Device and light micro-scope.The relationship between the hydrophobic performance and microstructure of the bee wings are studied.The anisotropy of the drops on the wings are studied and validated by experiment.The static and dynamic hydrophobic mechanism of the wing surface are studied by the Wenzel and Cassie models.Then the contact angle model is established.Thirdly,getting the biggest factor by comparing the different adhesion forces.The adhesion model between particles and wing surface is established based on the existing adhesion model.Adhesion force model are verified by measuring the adhesion force through atomic force microscopy.The influence of vibration on particle removal is studied and the vibration particle model is established.The influence of airflow on particle removal is studied also.Finally,testing and verifying the mechanism of removal between particle and the bee wing surfaces.The influence of vibration and airflow are verified by experimental devices.It is concluded that the research of the bee wings can provide the theory basis for the micro aerial vehicle and the self-cleaning films.