Abstract A novel self-heating 3D printed continuous carbon fiber (CCF)/epoxy (EP) mesh for deicing was proposed. Because of electron migrating conduction and hopping conduction, the conductivity of CCF reached 131.3 S cm−1 at 25 °C and increased by 1.1%–148.4 S cm−1 at 200 °C, exhibiting a negative temperature coefficient (NTC) effect. Because of the electron conduction of CCF and uneven thermal expansion of the fiber/matrix components, the CCF/EP mesh had NTC and positive temperature coefficient (PTC) effects. After specific hot-cold cycles, the resistance stability of the printed mesh was confirmed. Compared to unprotected glass fiber-reinforced composite laminate, the CCF/EP mesh reinforcement decreased the deicing time by 85% and had a protective effect on the residual flexural strength and modulus, fiber-resin bonding, and internal voids. Excellent conductivity, resistance stability, and electric self-heating performance indicate that 3D printed CCF/EP mesh is a promising candidate for use in deicing.

中文翻译：

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自热3D打印连续碳纤维/环氧树脂网及其在风力发电机除冰中的应用

摘要 提出了一种用于除冰的新型自加热 3D 打印连续碳纤维 (CCF)/环氧树脂 (EP) 网格。由于电子迁移传导和跳跃传导，CCF的电导率在25°C时达到131.3 S cm-1，在200°C时增加了1.1%–148.4 S cm-1，表现出负温度系数（NTC）效应。由于CCF的电子传导和纤维/基体成分的不均匀热膨胀，CCF/EP网格具有NTC和正温度系数（PTC）效应。经过特定的冷热循环后，印刷网的电阻稳定性得到确认。与未受保护的玻璃纤维增​​强复合材料层压板相比，CCF/EP 网状增强材料将除冰时间减少了 85%，并对残余弯曲强度和模量、纤维-树脂结合和内部空隙具有保护作用。