Anisotropic Printed Resistor with Linear Sensitivity Based on Nano–Microfiller-Filled Polymer Composite,Advanced Electronic Materials

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Anisotropic Printed Resistor with Linear Sensitivity Based on Nano–Microfiller-Filled Polymer Composite
Advanced Electronic Materials ( IF 5.3 ) Pub Date : 2021-10-04 , DOI: 10.1002/aelm.202100581
Pei Huang _{1,

2} , Yingze Cao ₂ , Yawen Wei ₂ , Xiang Cheng ₂ , Junfeng Liu ₂ , Shanshan Zhang ₂ , Pengfei Wang ₂ , Shaosong Chen ₁ , Zhidong Xia ₃

Affiliation

3D printing electronics provides great potential to build structural objects with multiple functionalities, with the assistance of shape design and the shear force on the filler orientation. In the study, nano–microanisotropic sensors with oriented fillers assure its linear sensitive properties, where the sensors are 3D-printed based upon the carbon fiber (CF)- and multiwalled carbon nanotube (MCNT)-filled polydimethylsiloxane (PDMS). The synergistic effect of CF and MCNT modifies the printability, mechanical properties, and sensitivity of printed sensors. The introduction of anticatalyst and catalyst guarantee the printable mixtures with a stable printability in a long term (>15 days). Assisted by the shear flow, the fillers own the orientation ration of 78.53%, which further contribute to the linear sensing behaviors under the tensile strain of 0–20% and compressive stress of 0–20 kPa. Frequency-domain signals and visual demonstration on the cyclic stretch test reveal that the double peak is originated from the hysteresis of the strain to applied stress. Anisotropic electromechanical behaviors of the resistors will inspire to quantitatively analyze multidimensional strains in practical applications. The fingerprint inspired resistors with multiple sensing signals further demonstrate the convenience of the printing process on the design of wearable electronics.

中文翻译：

基于纳米微填料填充聚合物复合材料的具有线性灵敏度的各向异性印刷电阻器

借助形状设计和填料方向上的剪切力，3D 打印电子器件为构建具有多种功能的结构物体提供了巨大的潜力。在这项研究中，具有定向填料的纳米微各向异性传感器确保了其线性敏感特性，其中传感器基于碳纤维 (CF) 和多壁碳纳米管 (MCNT) 填充的聚二甲基硅氧烷 (PDMS) 进行 3D 打印。CF 和 MCNT 的协同效应改变了印刷传感器的可印刷性、机械性能和灵敏度。抗催化剂和催化剂的引入保证了可印刷混合物在长期（> 15天）具有稳定的印刷适性。在剪切流的辅助下，填料的取向率为78.53%，这进一步有助于在 0-20% 的拉伸应变和 0-20 kPa 的压应力下的线性传感行为。循环拉伸试验的频域信号和视觉演示表明，双峰源于应变对施加应力的滞后作用。电阻器的各向异性机电行为将启发在实际应用中对多维应变进行定量分析。具有多个传感信号的指纹电阻器进一步证明了可穿戴电子设备设计印刷过程的便利性。电阻器的各向异性机电行为将启发在实际应用中对多维应变进行定量分析。具有多个传感信号的指纹电阻器进一步证明了可穿戴电子设备设计印刷过程的便利性。电阻器的各向异性机电行为将启发在实际应用中对多维应变进行定量分析。具有多个传感信号的指纹电阻器进一步证明了可穿戴电子设备设计印刷过程的便利性。

更新日期：2021-11-10

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