11 results about "E-textiles" patented technology

The application relates to the technical field of electronic fabrics, in particular to an electronic fabric based on laser-activated printable conductive ink and a preparation method thereof. Bismuth, indium and tin are mixed to obtain a mixture, the mixture is smelted to completely melt, and a molten alloy is obtained; the molten alloy is mixed with boiling water and ultrasonically treated to obtain an alloy dispersion liquid; the alloy dispersion liquid is centrifuged to obtain alloy particles which are dried and then mixed with a binder solution and stirred to obtain an alloy particle and binder solution composite ink; the ink is then patterned on a fiber pad in a stencil printing mode, and after activation, an electronic fabric is obtained. By combining an electrospun polyimide nanofiber base material and a laser-sintering-activated printable bismuth alloy conductive ink, the prepared electronic fabric has high flexibility, high air permeability and high conductivity, and the square resistance can reach 0.5 omega / D.

The invention discloses a preparation method and application of a high-stability flexible electronic fabric, and belongs to the technical field of functional textile materials and flexible electronics. The invention aims to solve the problems that MXene is easy to oxidize, easy to fall off under repeated deformation and poor in long-term stability when being used as a conductive layer of a fabric. The preparation method comprises the following steps: modifying a fabric by using polydopamine, obtaining an MXene conductive fabric by using a dip-coating method, and obtaining an MXene / PPy electronic fabric of which the conductive layer is controllable in morphology by using a low-temperature oscillation adsorption method and a low-temperature in-situ polymerization method; the combination of polydimethylsiloxane and the micro-nano rough conductive layer is regulated and controlled through a spraying method, and the flexible electronic fabric is obtained. The flexible electronic fabric provided by the invention has good structural stability, flexibility and biocompatibility and excellent electrical properties. The flexible electronic fabric can resist damage of mechanical external force to the conductive layer, and still keeps good electrical stability in a high-humidity environment for a long time, and the flexible electronic fabric has wide application prospects in the aspects of electro / photo-thermal physiotherapy, wearable monitoring and electromagnetic protection.

The invention discloses a sensing fabric with a microbridge structure and a preparation method thereof, and belongs to the technical field of wearable flexible electronics and electronic fabrics. The sensing fabric with the microbridge structure is prepared on a non-woven substrate which is approximately uniform in all directions through the collaborative design of PDA interface adhesion enhancement, CNT conductive network construction and PPy in-situ polymerization; micro-cracks are controllably generated when the carbon nanotubes are pulled, and a micro-bridge conductive path is formed by bridging the CNTs among the cracks; response splitting and double peaks caused by warp and weft orientation are reduced by the non-woven substrate; pDA improves interface bonding, CNT constructs a cross-fiber continuous network, and it is guaranteed that a conductive path is stable; the micro-crack-micro-bridge mechanism realizes an electro-mechanical response of'amplification without breaking, recoverable and repeatable 'in stretching / springback, so that high sensitivity, low hysteresis, fast response and high cycle stability are considered in a strain range of more than or equal to 100% (preferably-150%), the in-plane consistency and the signal-to-noise ratio are remarkably improved, and the method has a very good application prospect.

A judging method for a module peeling time of a soft electronic fabric module is provided. The method includes: preselecting a plurality of module material combinations, the plurality of module material combinations respectively comprising a substrate material, a wire material and a packaging material; extracting the plurality of module material combinations to generate a plurality of module material combination parameters; generating a plurality of machine learning training data based on the plurality of module material combination parameters and a plurality of module pre-processing conditions; and training a machine learning model according to the plurality of machine learning training data to provide an optimized prediction model for judging a module peeling time.

The invention belongs to the technical field of intelligent fibers, and discloses a multifunctional intelligent color-changing fiber, an electronic fabric and a preparation method and application thereof.The multifunctional intelligent color-changing fiber is of a three-layer coaxial structure, a core layer is made of flowing liquid metal LM with electrical conductivity and electric heating performance, a middle layer is made of nematic phase liquid crystal elastomer LCE with thermal response, and the core layer and the middle layer are coaxial. The middle layer is heated to generate phase transformation so as to cause macroscopic shrinkage, the outermost layer is a cholesteric liquid crystal elastomer CLCE with structural color, and the multifunctional intelligent color-changing fiber can simultaneously respond to external stimulation, such as tension, pressure and temperature changes, and can stably output optical and resistance double signals.

The invention provides a fiber, an elastic recovery rate testing method thereof, a preparation method, an application, an elastic fiber and an electronic fabric. The cross section of the fiber is 8-shaped, and the fiber has a three-dimensional crimp structure macroscopically. The method for testing the elastic recovery rate of the fiber can be used for testing the elastic recovery rate of the fiber. The preparation method of the fiber comprises the steps that a first degradable fiber-forming polymer and a second degradable fiber-forming polymer are fused to obtain a fused degradable fiber-forming polymer, and the value range of the volume ratio of the first degradable fiber-forming polymer to the second degradable fiber-forming polymer is (3: 7)-(7: 3); forming nascent fibers from the molten degradable fiber-forming polymer under the action of set pressure; and performing post-treatment on the nascent fiber to obtain the fiber. The fiber can be applied to elastic fibers or flexible wearable electronic fabrics. The elastic fiber and the flexible wearable electronic fabric are prepared from the fiber. The elastic fabric has high elasticity and elastic recovery rate.

The utility model discloses an electronic fabric strength tester for textile detection, and relates to the technical field of fabric strength testing, the electronic fabric strength tester comprises a frame body, an electric push rod, a pressure sensor, a supporting box and a pressing and fixing assembly, the electric push rod is installed on the inner wall of the frame body, the pressure sensor is installed at the output end of the electric push rod, and the pressing and fixing assembly is installed on the supporting box. A first sliding opening is formed in the outer wall of the frame body, and a supporting box is installed on the inner wall of the first sliding opening in a penetrating mode. A friction block is placed on the inner wall provided with a clamping groove, a first supporting rod is used for supporting a sliding sleeve, a first motor rotates to drive a threaded rod to rotate, the threaded rod rotates to drive a threaded sleeve to move, the threaded sleeve moves to drive a first connecting rod to move, and the first connecting rod moves to drive a pressing head to move. The pressing head moves to press the textile into the clamping groove to be rapidly fixed, and the function of rapidly fixing the textile and improving the testing efficiency is achieved.

The invention belongs to the technical field of intelligent spinning and flexible electronics, and relates to an electronic fabric interface and a preparation method and application thereof.The electronic fabric interface comprises a fabric-based conductive path and a three-layer gradient packaging structure wrapping a connecting area between the fabric-based conductive path and a circuit board; the three-layer gradient packaging structure is composed of an inner layer high bonding layer, a middle gradient layer and an outer layer flexible protection layer. The elastic moduli of the inner layer high bonding layer, the middle gradient transition layer and the outer layer flexible protection layer are gradually reduced in sequence; during preparation, firstly, the end part of the fabric-based conductive path and a circuit board are bonded and electrically connected through a conductive adhesive, and then an inner layer high bonding layer, a middle gradient transition layer and an outer layer flexible protection layer are respectively coated and cured in a connection area to obtain an interface; the method is applied to connection and integration of different modules in a wearable clothing system. The electronic fabric interface can prevent the problem of interface separation caused by stress concentration; the preparation method is simple; and long-term reliability and durability are realized during application.

The present application belongs to the technical field of intelligent electronic devices, and particularly relates to a preparation method of a flexible fiber integrated circuit. The method comprises the following steps: taking a micron-level polymer elastomer film as a base material, taking a high-modulus island-shaped polymer film as a buffer layer, and using an electronic device micro-nano processing preparation process and a multi-layer roll film assembly method to prepare the flexible fiber integrated circuit. The present application uses the high-modulus island-shaped polymer film layer as the buffer layer, which greatly enhances the stability of the performance of the electronic device when the electronic device on the fiber platform undergoes various deformations. The roll film method introduces the advanced high-precision preparation process (such as photolithography, etching, etc.) of the planar electronic device into the preparation of the fiber electronic device, realizes the integration of various high-precision and high-density electronic devices at the micro-nano scale, including resistors, capacitors, transistors, diodes and the like. The inner roll and the outer roll improve the protection of the electronic device and the convenience of electrode leading-out, respectively, and expand the application range of the fiber integrated circuit, such as in-vivo implantation, weaving into electronic fabrics and the like.

The invention discloses an array type electronic fabric-based high-density high-resolution electronic skin, which comprises an upper electrode layer, a lower electrode layer and a middle sensing layer arranged between the upper electrode layer and the lower electrode layer, the upper electrode layer, the middle sensing layer and the lower electrode layer are sequentially tiled, aligned and stacked, and are formed by sewing, the upper electrode layer and the lower electrode layer are woven fabrics formed by interweaving warp yarns and weft yarns or knitted fabrics formed by looping the yarns; the upper electrode layer, the lower electrode layer and the middle sensing layer are cut to form the same size specification, the upper electrode layer, the lower electrode layer and the middle sensing layer are sequentially tiled, aligned and stacked in sequence, the upper electrode layer and the lower electrode layer are vertically and orthogonally arranged, and the four edges of the lower electrode layer, the middle sensing layer and the upper electrode layer are sewn in stitch modes such as flat sewing, overlock sewing and flat seaming. According to the present invention, the high ductility, the low creep deformation and the fatigue resistance can be simultaneously provided, the test accuracy and the sensitivity are effectively improved, the process flow is simplified, and the production cost is reduced.

The application discloses a cleaning device for an electronic fabric strength tester and a cleaning method thereof, and relates to the technical field of electronic fabric strength testers. The cleaning device is used for solving the problems that, when the electronic fabric strength tester is used to perform tests such as tearing, peeling and load setting on various materials, tissues and non-woven fabrics, a large amount of material debris and tissues are generated and remain on the workbench of the electronic fabric strength tester, thereby affecting the accuracy of the test, and the tissue debris is relatively light and is scattered everywhere when the test is performed, thereby affecting the working environment. The cleaning device comprises a base, a gantry arranged at the upper end of the base, clamps arranged at the upper and lower ends of the interior of the gantry, a rotating handle arranged at the front end of each clamp, a fixed block arranged at the upper end of the base, and the clamp at the lower end of the interior of the gantry being fixedly installed at the upper end of the fixed block, and sliding grooves arranged at the rear end of the fixed block.