Magnetic properties of smart textile fabrics through a coating method with NdFeB flake-like microparticles

Zhou, Yan; Zhu, Wenyue; Zhang, Lifang; Gong, Jingyu; Zhao, Dandan; Liu, Min; Lin, Long; Qi, Meng; Thompson, Richard A.; Sun, Ying

doi:10.1177/1558925019865708

Cited by 10 publications

(5 citation statements)

References 17 publications

(17 reference statements)

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“…When using cotton yarns that are covered with hard (barium hexaferrite), and soft (Black Toner 6745 CP-313) magnetic particles, it is shown that residual magnetism and coercive field intensity of the yarns are increasing with the magnetic powder content in the coating solution [ 30 ]. Smart textile fabrics obtained by using a coating method with NdFeB flake-like microparticles exhibit high magnetization required under special conditions [ 31 ]. In addition, when natural compounds are used, such as cotton fibers soaked with mixtures containing honey or turmeric powder, the magnetodielectric effects induced by a static magnetic field superimposed on a medium-frequency electric field, allows for hMCs to be used for the fabrication of medical devices [ 32 ].…”

Section: Introductionmentioning

confidence: 99%

Hybrid Magnetorheological Composites for Electric and Magnetic Field Sensors and Transducers

2020

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We present a simple, low-cost, and environmental-friendly method for the fabrication of hybrid magnetorheological composites (hMCs) based on cotton fibers soaked with a mixture of silicone oil (SO), carbonyl iron (CI) microparticles, and iron oxide microfibers (μF). The obtained hMCs, with various ratios (Φ) of SO and μF, are used as dielectric materials for manufacturing electrical devices. The equivalent electrical capacitance and resistance are investigated in the presence of an external magnetic field, with flux density B. Based on the recorded data, we obtain the variation of the relative dielectric constant (ϵr′), and electrical conductivity (σ), with Φ, and B. We show that, by increasing Φ, the distance between CI magnetic dipoles increases, and this leads to significant changes in the behaviour of ϵr′ and σ in a magnetic field. The results are explained by developing a theoretical model that is based on the dipolar approximation. They indicate that the obtained hMCs can be used in the fabrication of magneto-active fibers for fabrication of electric/magnetic field sensors and transducers.

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Section: Introductionmentioning

confidence: 99%

Hybrid Magnetorheological Composites for Electric and Magnetic Field Sensors and Transducers

2020

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“…The magnetic fiber actuators play an important role in untethered robot, because they take advantages of fast, dexterous, large force, and offers high compliance. [126][127][128] To produce the magnetic fibers, several methods are developed, such as coating, [129] electrospinning, [130] and 3D printing of the magnetic microparticles-polymers composition. Lee at al.…”

Section: Magnetic and Pneumatic Actuationsmentioning

confidence: 99%

Functional Fibers and Fabrics for Soft Robotics, Wearables, and Human–Robot Interface

2020

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Fiber that has been known for thousands of years for textile engineering, is a kind of thin 1D material with large length-diameter ratio and softness. Fiber can be further processed into 1D or 3D yarns and 2D or 3D fabrics and can be subjected to wellestablished textile manufacturing techniques, such as dyeing, twisting, sewing, knitting, weaving, braiding, etc. [1] As commercially available material, fabric has been widely used for clothing, bedding, or furniture. Such wide-adoption demonstrates fabrics/textiles to be important and adaptable as daily useable material due to their merits of protection, breathability, comfort, and durability. [2] In recent years, novel smart responsive functions are desirable to be implemented on fibers and fabrics for seamless integrations of actuators, sensors, power sources, etc., to realize the robotic fibers/fabric-based manipulators and human-robot interfaces. These emerging responsive fibers/ fabrics are desirable to offer programmable functions, actuations, perception and capable of building an intuitive and dynamic collaborative scenarios with human, promising in enabling applications such as remote operation, human motion assistance, human perception, health monitoring and biomedical detection and therapy. [3][4][5] It is an attractive concept that the future human-robot interfaces could be embodied in familiar forms for humans such as textiles or clothes. Compared with the polymeric and elastomeric soft robotics, [6][7][8][9] fibers and fabrics are advantageous in applications of soft robotics and wearables for human. The devices could be programmable to have accurate designs in configuration and high performance by traditional manufacturing processes of textile, applying twist to transform fibers into coils, yarns with hierarchical structures, which could be further fabricated into fabrics or textiles by sewing, weaving, knitting, etc., techniques (Figure 1), guaranteeing good wearability, skin affinity, washability, and durability, which are intriguing and necessary for friendly robotics interactions with human.Soft robotics include three main components of actuators, sensors, and control modules with power sources. [10,11] Of which, actuators, sensors and power sources all could be designed in the form of fibers or fabrics, rendering facile assembly, and integration by interlocking. [12] Common actuations can be Soft robotics inspired by the movement of living organisms, with excellent adaptability and accuracy for accomplishing tasks, are highly desirable for efficient operations and safe interactions with human. With the emerging wearable electronics, higher tactility and skin affinity are pursued for safe and user-friendly human-robot interactions. Fabrics interlocked by fibers perform traditional static functions such as warming, protection, and fashion. Recently, dynamic fibers and fabrics are favorable to deliver active stimulus responses such as sensing and actuating abilities for soft-robots and wearables. First, the responsive mechanisms of fiber/fabric actu...

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“…Research on similar topics was reported in [ 16 ], where cotton fabrics were coated with αFe 2 O 3 nanoparticles, graphene nanoparticles, and iron nanoparticles. In [ 17 , 18 ], polymer fibers were treated with BaFe nanoparticles and toner type 6754CP-313, and in [ 19 ], with liquid solutions of polyurethane polyole and microparticles of the NdFeB type. Therefore, composites made in [ 13 , 14 , 15 , 16 , 17 , 18 , 19 ] have physical properties that make them useful in electromagnetic smog protection.…”

Section: Introductionmentioning

confidence: 99%

A Cotton Fabric Composite with Light Mineral Oil and Magnetite Nanoparticles: Effects of a Magnetic Field and Uniform Compressions on Electrical Conductivity

et al. 2023

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Over the past few decades, tactile sensors have become an emerging field of research with direct applications in the area of biomedical engineering. New types of tactile sensors, called magneto-tactile sensors, have recently been developed. The aim of our work was to create a low-cost composite whose electrical conductivity depends on mechanical compressions that can be finely tuned using a magnetic field for magneto-tactile sensor fabrication. For this purpose, 100% cotton fabric was impregnated with a magnetic liquid (EFH-1 type) based on light mineral oil and magnetite particles. The new composite was used to manufacture an electrical device. With the experimental installation described in this study, we measured the electrical resistance of an electrical device placed in a magnetic field in the absence or presence of uniform compressions. The effect of uniform compressions and the magnetic field was the induction of mechanical–magneto–elastic deformations and, as a result, variations in electrical conductivity. In a magnetic field with a flux density of 390 mT, in the absence of mechanical compression forces, a magnetic pressure of 5.36 kPa was generated, and the electrical conductivity increased by 400% compared to that of the composite in the absence of a magnetic field. Upon increasing the compression force to 9 N, in the absence of a magnetic field, the electrical conductivity increased by about 300% compared to that of the device in the absence of compression forces and a magnetic field. In the presence of a magnetic flux density of 390 mT, and when the compression force increased from 3 N to 9 N, the electrical conductivity increased by 2800%. These results suggest the new composite is a promising material for magneto-tactile sensors.

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Magnetic properties of smart textile fabrics through a coating method with NdFeB flake-like microparticles

Cited by 10 publications

References 17 publications

Hybrid Magnetorheological Composites for Electric and Magnetic Field Sensors and Transducers

Hybrid Magnetorheological Composites for Electric and Magnetic Field Sensors and Transducers

Functional Fibers and Fabrics for Soft Robotics, Wearables, and Human–Robot Interface

A Cotton Fabric Composite with Light Mineral Oil and Magnetite Nanoparticles: Effects of a Magnetic Field and Uniform Compressions on Electrical Conductivity

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