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Electric heating behavior of flexible knitted fabrics comprising reduced graphene oxide, with emphasis on resistance temperature-sensitive behavior and decoupling of contact resistance
Journal of Industrial Textiles ( IF 3.2 ) Pub Date : 2021-07-27 , DOI: 10.1177/15280837211034240
Xinghua Hong 1, 2 , Rufang Yu 1 , Yubing Dong 1 , Junmin Wan 1, 2 , Hongxia Zhang 1, 2 , Chengyan Zhu 1, 2
Affiliation  

Electric fabric heaters have demonstrated potential applications in a wide range of fields for medical electrothermal, human healthcare and athletic rehabilitation. Whereas, little attention has been paid to the resistance variations and the interface of electric heaters. Here, this paper focuses on the resistance temperature-sensitive behavior and interfacial electricity of reduced graphene oxide (RGO)/polyester (PET) fabrics, which are obatained through a facile and scalable dip-coating method. When a current of 0.055 ampere (A) is applied, the RGO/PET fabric can achieve an equilibrium temperature about 89 °C in 20 s, with a maximum heating rate of 11.78 °C/s. Besides, the relative resistance changes of RGO/PET fabric are linearly related to the temperature. When the RGO/PET fabric reaches its steady-state temperature of 89 °C, the value of ΔR/R0 drops by ∼30%, showing that the fabric is endowed with temperature sensitivity. These prominent results indicate that the RGO/PET fabric owns great promise in the field of wearable electric heaters. Notably, the contact resistance at the interface of RGO/PET fabric heater is investigated and the mechanism of the temperature in middle part of heater is higher than that of both ends is analyzed. This provides a qualitative decoupling analysis method for the study and analysis of interfacial electricity and electrothermal distribution of carbon materials.



中文翻译:

包含还原氧化石墨烯的柔性针织物的电加热行为,重点是电阻温度敏感行为和接触电阻的解耦

电织物加热器已在医疗电热、人体保健和运动康复等广泛领域展示了潜在应用。然而,很少有人关注电加热器的电阻变化和界面。在这里,本文重点研究还原氧化石墨烯 (RGO)/聚酯 (PET) 织物的电阻温度敏感行为和界面电,这些织物是通过一种简便且可扩展的浸涂方法获得的。当施加 0.055 安培 (A) 的电流时,RGO/PET 织物可在 20 秒内达到约 89°C 的平衡温度,最大加热速率为 11.78°C/s。此外,RGO/PET 织物的相对电阻变化与温度呈线性相关。当 RGO/PET 织物达到其稳态温度 89 °C 时,ΔR/R 值0下降约 30%,表明织物具有温度敏感性。这些突出的结果表明,RGO/PET织物在可穿戴电加热器领域具有广阔的前景。值得注意的是,研究了RGO / PET织物加热器界面处的接触电阻,并分析了加热器中间部分温度高于两端温度的机制。这为碳材料的界面电和电热分布的研究和分析提供了一种定性解耦分析方法。

更新日期:2021-07-28
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