ARAMID FIBER ELECTRODE AND PREPARATION METHOD THEREFOR

    公开(公告)号:US20200286691A1

    公开(公告)日:2020-09-10

    申请号:US16759330

    申请日:2018-07-04

    摘要: The invention discloses an aramid fiber electrode and a preparation method thereof. Silver nanoparticles, carbon nanotubes and polypyrrole were sequentially coated on the surface of the aramid fiber by chemical bonding, to prepare an aramid fiber electrode, two aramid fiber electrodes were wound with an electrolyte to obtain an aramid fiber electrochemical capacitor. Compared with the polymer fiber electrochemical capacitor prepared in the prior art, the aramid fiber electrochemical capacitor provided by the present invention has both high specific capacitance, high energy density, high mechanical performance, high stability, good flexibility and wearability. And other characteristics; the preparation method is controllable and suitable for large-scale applications.

    REVERSIBLE SELF-REPAIRING EPOXY RESIN AND PREPARATION AND RECOVERY REMOULDING METHOD THEREFOR

    公开(公告)号:US20200283595A1

    公开(公告)日:2020-09-10

    申请号:US16759327

    申请日:2018-02-27

    摘要: This invention provides a self-healable epoxy resin and its preparation, recycling and remolding method. With the catalyst of potassium iodide, an ester solution of 2-mercaptoacetic acid was oxidated by 30% H2O2 to form 2,2′-dithiodiacetic acid; then 2,2′-dithiodiacetic acid was dehydrated and cyclizated by anhydride to form 1,4,5-oxadithiepane-2,7-dione; 1,4,5-oxadithiepane-2,7-dione and methylhexahydrophthalic anhydride were mixed by mass ratio and cured with epoxides to get the self-healable epoxy resin. Through controlling dynamic and permanent three-dimensional crosslinked network, the self-healable epoxy resins provided in this invention exhibit high thermal resistance and improved mechanical properties as well as excellent self-healing ability, recyclability and remoldability. This invention provides a preparation method with the merits of low cost, simple production processes, broad application prospects and strong utility.

    UNSUPERVISED FAULT DIAGNOSIS METHOD FOR MECHANICAL EQUIPMENT BASED ON ADVERSARIAL FLOW MODEL

    公开(公告)号:US20240353829A1

    公开(公告)日:2024-10-24

    申请号:US17916720

    申请日:2021-10-12

    IPC分类号: G05B23/02

    CPC分类号: G05B23/0281 G05B23/024

    摘要: The present invention provides an unsupervised fault diagnosis method for mechanical equipment based on an adversarial flow model, main steps including: data preprocessing, converting a mechanical vibration signal into a frequency domain signal, and normalizing the amplitude value of the signal into a range of [0, 1]; prior distribution designing: designing a mixture of Gaussian distribution with K subdistributions, wherein K is determined by the number of mechanical equipment status; model construction: constructing an unsupervised fault diagnosis model by combining an autoencoder, a flow model, and a classifier; model training: training the unsupervised fault diagnosis model by using various classes of status data, along with the designed prior distribution, preset training steps, loss functions, and an optimization algorithm; and fault diagnosis: inputting status data of mechanical equipment into the trained unsupervised fault diagnosis model to obtain a data clustering result and a fault diagnosis result.

    AMINO-SUBSTITUTED CHROMENOQUINOLINE-BASED FLUORESCENT MARKER, AND PREPARATION AND USE THEREOF

    公开(公告)号:US20240353433A1

    公开(公告)日:2024-10-24

    申请号:US17928893

    申请日:2021-12-30

    摘要: The invention provides an amino-substituted chromenoquinoline-based fluorescent marker, and preparation and use thereof. The amino group of an aromatic amine compound is subjected to a one-step cyclization reaction with two o-chloroformylcumarins, to obtain a series of nitrogen-containing heterocyclic compound. Such compounds have excellent fluorescence emission performance, and also have good photostability in various organic solvents. The problem of photostability of cyanine dyes is effectively solved, and these dyes are useful in marking various organelles at cellular level. The introduction of the nitrogen-containing heterocyclic ring improves the biocompatibility of the compound, thus laying a good foundation for use in organisms. Further, the raw materials used in such reactions are cheap and readily available, the steps of synthesizing the marker are simple and easy to operate, and the production cost is effectively reduced while not lowering the performance of the marker. Therefore, the present invention is of commercial value.

    Three-dimensional force flexible tactile sensor and preparation method and decoupling method thereof

    公开(公告)号:US12092543B2

    公开(公告)日:2024-09-17

    申请号:US17631479

    申请日:2021-01-22

    IPC分类号: G01L5/165

    CPC分类号: G01L5/165

    摘要: The invention provides a three-dimensional force flexible tactile sensor and a fabrication method and a decoupling method thereof. The three-dimensional force flexible tactile sensor includes a first flexible layer, a porous elastic layer and a second flexible layer which are arranged in sequence. The first flexible layer is provided with a plurality of first electrodes. The second flexible layer is provided with a second electrode. The first electrodes and the second electrode are both clung to the porous elastic layer. The sensor not only can detect normal mechanical load, but also can measure the force tangent to the surface of the sensor, thereby realizing the detection of the three-dimensional force.

    METHOD FOR PREPARING 2-IODO ARYL ETHER UNDER THE ACTION OF ALKALI METAL HYDRIDE

    公开(公告)号:US20240270669A1

    公开(公告)日:2024-08-15

    申请号:US18037553

    申请日:2021-02-23

    IPC分类号: C07C41/16 C07C41/34

    CPC分类号: C07C41/16 C07C41/34

    摘要: Disclosed in the present invention is a method for preparing 2-iodo aryl ether under the action of alkali metal hydride: adding alkali metal hydride and phenol to a solvent, then adding 1,2-diiodoarene, and reacting at 0-100° C. to obtain a 2-iodo aryl ether product. The coupling process of the present invention does not require the addition of a transition metal catalyst, and does not cause metal contamination to the product; the method of the present invention can be performed at room temperature and has high functional group compatibility, and solves the problem that existing metal-catalysed coupling to aryl ether reactions need to be performed at a relatively high temperature.