Highly Improved Creep Resistance in Polypropylene Through Thermally Reduced Graphene Oxide and Its Creep Lifetime Prediction

Zhang, Cancan; Yang, Jianan; Huang, Yajiang; Li, Guangxian

doi:10.1007/s10118-023-3028-x

Cited by 6 publications

(1 citation statement)

References 41 publications

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“…Portable flexible sensing systems (FSSs) for plantar pressure have gained significant attention in recent research since they can demonstrate the motion status, posture, and related physiological information on foot patients in real time, which can promote personalized rehabilitation and medical treatment. , Existing works have demonstrated that increasing the size of the sensor, adding a support frame, or enhancing the deformability of the structure can result in flexible sensors that have a plantar pressure detection functionality. − In these studies, researchers focused on the gait analysis, real-time monitoring of human movement status, − coordination of human balance, or customized insoles. − Interesting applications have also been carried out in the fields of foot disease prevention and detection, ,,− spatial resolution of plantar pressure, , and rehabilitation training monitoring systems. ,, However, during normal daily activities, human feet are subjected to compressive pressures, tangential forces, or two complex coupled forces and long-term dynamic conditions (Figure S1). To meet the high accuracy of plantar pressure sensing under complex dynamic conditions, the miniaturization of devices is an inevitable trend.…”

Section: Introductionmentioning

confidence: 99%

Integrated Fibrous Iontronic Pressure Sensors with High Sensitivity and Reliability for Human Plantar Pressure and Gait Analysis

Li,

Zou,

Guo

et al. 2024

ACS Nano

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Flexible sensing systems (FSSs) designed to measure plantar pressure can deliver instantaneous feedback on human movement and posture. This feedback is crucial not only for preventing and controlling diseases associated with abnormal plantar pressures but also for optimizing athletes’ postures to minimize injuries. The development of an optimal plantar pressure sensor hinges on key metrics such as a wide sensing range, high sensitivity, and long-term stability. However, the effectiveness of current flexible sensors is impeded by numerous challenges, including limitations in structural deformability, mechanical incompatibility between multifunctional layers, and instability under complex stress conditions. Addressing these limitations, we have engineered an integrated pressure sensing system with high sensitivity and reliability for human plantar pressure and gait analysis. It features a high-modulus, porous laminated ionic fiber structure with robust self-bonded interfaces, utilizing a unified polyimide material system. This system showcases a high sensitivity (156.6 kPa–1), an extensive sensing range (up to 4000 kPa), and augmented interfacial toughness and durability (over 150,000 cycles). Additionally, our FSS is capable of real-time monitoring of plantar pressure distribution across various sports activities. Leveraging deep learning, the flexible sensing system achieves a high-precision, intelligent recognition of different plantar types with a 99.8% accuracy rate. This approach provides a strategic advancement in the field of flexible pressure sensors, ensuring prolonged stability and accuracy even amidst complex pressure dynamics and providing a feasible solution for long-term gait monitoring and analysis.

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Section: Introductionmentioning

confidence: 99%

Integrated Fibrous Iontronic Pressure Sensors with High Sensitivity and Reliability for Human Plantar Pressure and Gait Analysis

Li,

Zou,

Guo

et al. 2024

ACS Nano

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Integrated Electromechanical Structure for Iontronic Pressure Sensors with Linear High‐Sensitivity Response and Robust Sensing Stability

Zhu,

Guo,

et al. 2024

Adv Funct Materials

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A linear high‐sensitivity response is crucial for flexible electronic skin, particularly in precision detection for applications like intelligent robotics and human‐machine interactions. Prevailing strategies typically adopt a layered, multifaceted material design to cultivate this response, yet this approach often culminates in a diminished capacity to augment sensing stability. The root causes of these limitations are predominantly material mechanical mismatches and interface incompatibilities inherent in these designs. To address these challenges, an electromechanical integration strategy is introduced that simultaneously enhances linear highsensitivity and stability. This strategy is centered on constructing a robust, integrated mechanical and electrical interface within a polyurethane material system through an in situ growth and adhesion process. The iontronic pressure sensor exhibits a linear high‐sensitivity response (16.24 kPa−1, R2 = 0.999) within a wide range (0–300 kPa). Moreover, the sensor's integrated structure, self‐encapsulated through the adhesion between the electrode and dielectric layers, exhibits robust stability, even under complex mechanical stresses. The applications of the sensors in precision weighing and haptic feedback within intelligent gripping systems demonstrate their advantages of both linearity and stable sensing. This work delineates a strategic pathway for the fabrication of high‐performance flexible pressure sensors, contributing significantly to the field of advanced sensing technologies.

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Highly dispersed thermally reduced graphene oxide in polypropylene assisted with in-situ Friedel-Crafts reaction and its thermo-oxidative stabilization effect

Chen,

Yang,

Huang

et al. 2024

Carbon

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Highly Improved Creep Resistance in Polypropylene Through Thermally Reduced Graphene Oxide and Its Creep Lifetime Prediction

Cited by 6 publications

References 41 publications

Integrated Fibrous Iontronic Pressure Sensors with High Sensitivity and Reliability for Human Plantar Pressure and Gait Analysis

Integrated Fibrous Iontronic Pressure Sensors with High Sensitivity and Reliability for Human Plantar Pressure and Gait Analysis

Integrated Electromechanical Structure for Iontronic Pressure Sensors with Linear High‐Sensitivity Response and Robust Sensing Stability

Highly dispersed thermally reduced graphene oxide in polypropylene assisted with in-situ Friedel-Crafts reaction and its thermo-oxidative stabilization effect

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