基于超疏水表层的石墨烯电热除冰实验研究

超疏水涂层因其憎水性和优异的抗冰性能,在防除冰领域得到了广泛的关注.为研究超疏水涂层与石墨烯耦合作用的电热除冰效果,通过实验测量了石墨烯加热元件的温升速率;设计并制备用于电热除冰的加热膜构型;测量不同热流密度与环境温度下耦合组件温升情况;根据自行搭建的电热除冰实验台,研究不同热流密度对耦合组件除冰效果的影响,并与无喷涂超疏水表层加热组件的除冰能耗进行对比.实验结果表明:石墨烯加热膜比金属丝加热膜温升速率高;低温环境中耦合组件均表现出良好的温升情况;随着热流密度的不断增加,耦合组件除冰时间越短;相比传统金属丝电热组件,相同热流密度下耦合组件除冰能耗降低49％.验证主动除冰系统与超疏水涂层被动防除冰系统结合下,具有降低电热除冰能耗的可行性.

Experimental study on graphene electrothermal deicing based on superhydrophobic surface

Super-hydrophobic coatings have received extensive attention in the field of anti-icing due to their hydrophobicity and excellent anti-icing properties. In order to study the electro-thermal de-icing effect under the coupling effect of superhydrophobic coating and graphene, the temperature rise rate of the graphene heating element is measured through experiments in this paper . The heating film configuration for electro-thermal de-icing was designed and prepared. The temperature rise of coupled components under different heat flux densities and ambient temperatures was measured. It was studied based on a self-built electro-thermal de-icing laboratory that the effects of different heat flux densities on the de-icing effect of coupling components, and the de-icing energy of non-sprayed super-hydrophobic surface heating components was compared. The experimental results show that the temperature rise rate of the graphene heating film is higher than that of the wire heating film, and the coupled components show a good temperature rise in the low temperature environment. With the increase of heat flux density, the shorter the de-icing time of the coupled components. Compared with traditional wire heating components, the energy consumption of the coupled components for de-icing is reduced by 49% under the same heat flux density. It is verified that the combination of active deicing system and passive anti-icing system with super-hydrophobic coating has the feasibility of reducing the energy consumption of electro-thermal de-icing.