| Transmission line ice disaster and its prevention has become an urgent problem to be solved.The anti-icing research of super-hydrophobic materials has gradually become the focus of many scholars,but the performance and stability of super-hydrophobic materials after application to aluminum-based ice-resistant is a big problem.First of all,this paper introduces the harm caused by icing on people’s daily work and life,and puts forward the necessity of solving ice icing.At the same time,it introduces the current deicing technology at home and abroad.Then the theory of ice coating,physical process and the conditions required for ice coating are summarized.First of all,this paper introduces the harm caused by icing on people’s daily work and life,and puts forward the necessity of solving ice icing.At the same time,it introduces the current deicing technology at home and abroad.Then the theory of ice coating,physical process and the conditions required for ice coating are summarized.Introducing the micro structure and anti-icing performance of superhydrophobic materials for the purpose of active anti-ice.Secondly,the preparation process of superhydrophobic materials and superhydrophobic surfaces in this paper is introduced.Demonstrate the experimental equipment needed in the text and explain the experimental equipment construction process principle,and method.It includes a temperature and humidity control room for simulating the icing climate,a contact angle measuring instrument for measuring the hydrophobic angle of the aluminum-based surface,and a test device for the high-temperature test of the friction test.The transmission aluminum wire anti-icing test used a deicing force measuring instrument to measure the deicing force.Anti-icing experiments on superhydrophobic surfaces were carried out by these experimental equipment.Finally,it is the analysis of the results of the anti-icing test on the superhydrophobic surface.The experimental results are divided into two parts,one is the aluminum sheet,after the ordinary aluminum sheet has a superhydrophobic surface,water contact angle is raised from 83° to 154.5°.The aluminum sheet surface with super-hydrophobic surface can effectively prevent the water droplets from staying on the surface to form ice coating.After simulating the ice coating through the temperature and humidity control room,it is observed that the ice coverage area of the aluminum sheet with super-hydrophobic surface is less than the ordinary aluminum sheet under the same ice-covered time.Measuring the surface ice coverage area of the two samples,through the ice coverage area reflected the anti-icing characteristics,it was found that the ice coverage area of the super-hydrophobic surface aluminum surface was 40% less than that of the ordinary aluminum sheet,and has a delayed 4 hours of icing.At the same time,considering the influence of friction and temperature factors in engineering applications,the friction test and high temperature experiment were carried out on the two samples.The conclusion was that the aluminum sheet with superhydrophobic surface had better ice resistance than ordinary aluminum sheets.The other part is the transmission aluminum wire,the transmission aluminum wire with super-hydrophobic surface and the ordinary aluminum wire are completely covered with ice under the same environment,and the deicing force of the aluminum wire is measured by the deicing force measuring instrument,the results show that the deicing force of the transmission aluminum wire with super-hydrophobic surface is lower than the ordinary aluminum wire.The experimental results of both parts show that the superhydrophobic surface has good anti-icing properties.In this paper,the anti-icing properties of super-hydrophobic surfaces for transmission lines are explored through experiments.The experimental results provide new ideas for the solution of transmission lines and aluminum-based ice coating. |
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