石墨烯复合材料电热除冰实验研究

Experimental Study on Electro-thermal De-icing of Graphene Composites

石墨烯复合材料因其优良的导电性和高导热性,在各个领域均得到了广泛的关注。为研究石墨烯加热膜在电热除冰上的应用,通过实验比较石墨烯和电阻丝作为加热元件时的温升速率;将加热元件制备成可用于电热除冰的加热膜,在相同加热功率下验证两者的发热均匀性;根据自行搭建的电热除冰实验台,研究不同热流密度和结冰温度对石墨烯加热膜除冰效果的影响。实验结果表明:单纯的石墨烯加热元件比电阻丝升温速率快,由石墨烯作为加热元件制备而成的加热膜发热更加均匀;随着热流密度的不断增加,石墨烯加热膜除冰时间越短,效果越好;结冰温度越低,除冰时间越长。验证了石墨烯可以作为一种理想的加热膜材料应用于电热除冰领域。

Graphene composites have attracted extensive attention in various fields due to their excellent electrical conductivity and high thermal conductivity. In order to study the application of graphene heating film in electrothermal de-icing,the temperature rise rate of graphene and resistance wire as heating elements was compared. The heating element is prepared into a heating film which can be used for electro-thermal de-icing. It was studied based on a self-built electro-thermal de-icing laboratory that the effects of different heat flux and freezing temperature on the de-icing effect of graphene heated films. The experimental results showed that the heating rate of the graphene heating element was faster than that of the resistance wire,and the heating film prepared from graphene as the heating element generated more uniform heating. With the increase of heat flux,the shorter the de-icing time,the better the effect. The lower the freezing temperature,the longer the de-icing time. It has been proved that graphene can be used as an ideal heating film material in the field of electro-thermal de-icing.