42results about How to "Retain conductivity" patented technology

The invention provides a preparation method of polyimide fiber far infrared emission paper, wherein the preparation method comprises the following steps: mixing polyimide fiber slurry, a carbon nanotube dispersion liquid, polyacrylate and cationic polyacrylamide to obtain mixed slurry; coating a single side of the substrate with the mixed slurry, curing, and forming a curing layer on the single side of the substrate; and peeling the substrate, and carrying out hot press molding of the obtained curing layer, to obtain the polyimide fiber far infrared emission paper. The polyimide and carbon nanotube slurry is coated, hot-pressed and molded, and the polyimide fiber far-infrared emission paper is obtained; not only are good electric conductivity and far-infrared emission performance of the carbon nanotubes retained, but also good mechanical properties of polyimide are retained. As a far-infrared emitter, the emission far-infrared wavelength is 4-18 [mu]m, and the conversion efficiency ofelectric energy radiation can reach 90% or more.

The invention relates to a synthetic method of a graphene-waterborne epoxy high-dispersion system. The method comprises steps as follows: step 1, glycidyl ether type epoxy resin and double-end amino micromolecular amine are subjected to an addition chain extension reaction, and an amino-terminated hydrophilic polyether chain segment is obtained; step 2, the amino-terminated hydrophilic polyether chain segment and a macromolecular epoxy group are subjected to an addition chain extension reaction, and an amino-terminated long-chain non-ionic self-emulsifying epoxy curing agent is obtained; step 3, low-oxidation graphene is prepared with an ultrasonic assisted Hummers method; step 4, the non-ionic self-emulsifying epoxy curing agent and low-oxidation graphene are subjected to a covalent grafting modification reaction, and the graphene-waterborne epoxy high-dispersion system is obtained. The synthetic method has the advantages as follows: the long-chain non-inoic self-emulsifying epoxy curing agent is grafted on the surface of graphene through a nucleophilic opening ring reaction, re-agglomeration of a graphene sheet layer is inhibited to a certain extent, the electric conductivity of graphene is retained, and the comprehensive mechanical performance and modulus of the graphene-waterborne epoxy high-dispersion system are improved effectively.

The invention discloses a swing electromagnetic induction type power generation flexible fabric, a production method and application thereof. The oscillating electromagnetic induction type power generation flexible fabric of the present invention includes magnetic yarn fabrics and conductive coil fabrics respectively located on the surfaces of two relative swinging parts; the magnetic yarn fabrics include magnetic yarn cores formed by composite fiber strips wrapping magnetic powder; the The conductive coil fabric is formed by embroidery of conductive silk core-spun yarn strands on the fabric substrate. In the present invention, the magnetic powder is evenly wrapped in the yarn, and a stable magnetic yarn fabric is prepared by a weaving method, and then used in combination with a conductive coil fabric containing conductive filaments to produce a flexible fabric that can generate electricity; Flexible fabrics can be applied to clothing, and use electromagnetic induction to convert the mechanical energy generated by the human body's arm swing / walking process into electrical energy, which ensures the softness of the clothing while realizing power generation, meets the needs of actual use, and has great application value.

The invention provides a method for dyeing conductive polyester fibers, mainly comprising the following steps of: desizing the conductive polyester fibers with desizing solution; carrying out alkali reducing treatment on the desized conductive polyester fibers in alkali reducing solution; dyeing the conductive polyester fibers, which is subjected to the alkali reducing treatment, in dyeing solution; carrying out reduction clearing treatment on the dyed conductive polyester fibers in reduction clearing solution; and taking out and drying the conductive polyester fibers. By adopting the dyeing method provided by the invention, a dyeing technological process and parameters are optimized, influence of dyeing and finishing processes on antistatic property, rate of dye-uptake, colour fastness and handfeel of the conductive polyester fibers and fabric is reduced, conductive effect of the fabric is maintained to the utmost extent, and the rate of dye-uptake of dye and colour fastness are improved.

The invention belongs to the field of display technology, and in particular relates to a quantum dot light-emitting diode and a preparation method thereof. A quantum dot light-emitting diode, comprising an anode, a cathode, and a quantum dot light-emitting layer between the anode and the cathode, an electron transport layer is also arranged between the cathode and the quantum dot light-emitting layer, and the electron The material of the transmission layer is graphyne fluoride. Such fluorinated graphyne is used in the electron transport layer of the quantum dot light-emitting diode device, which not only has the advantages of high electron transport efficiency, but also has a high degree of matching with the quantum dot light-emitting layer, and finally improves the light-emitting performance of the device.