10results about How to "Excellent self-healing function" patented technology

The invention relates to a laser fuse additive manufacturing preparation method of a memory alloy fiber implanted aluminum alloy self-healing material. The method comprises the following steps: selecting an Al-Mg-Sc aluminum alloy as a base material; the Ti-20Ta-10Zr memory alloy fibers are subjected to surface acid etching treatment; 1.0% of tensile prestrain is applied to the treated memory alloy fibers; the memory alloy fibers are woven into a twill woven structure; a laser coaxial wire feeding method is adopted, aluminum alloy layers are alternately deposited, memory alloy fiber layers are laid, and the multi-layer composite material is prepared. The prepared composite material has excellent mechanical property and self-healing function, and when the composite material is damaged by external force, crack closing and material self-healing are achieved through the shape memory effect of the memory alloy fibers. The method is simple in process, and the prepared material is stable in performance and suitable for industrial production and has wide application prospects in the fields of aerospace, automobile industry and the like.

The invention provides a preparation method of a self-repairing anti-aging automobile original factory varnish, belongs to the technical field of coatings, and solves the problem of requirements of the automobile original factory varnish on the aspects of self-repairing and aging resistance. Through the combined action of L-2960 self-repairing PU resin, TRE-2-S2 solvent type self-repairing resin and modified graphene, when sunlight is received, the self-repairing anti-aging automobile original factory varnish has the advantages that the self-repairing anti-aging automobile original factory varnish has the self-repairing and anti-aging functions; the excellent heat conduction performance of the modified graphene can accelerate the thermodynamic reaction of the surrounding self-repairing resin, so that the rapid recovery of the damaged part is promoted; by utilizing the advantage that the specific surface area of the modified graphene is not less than 2630m < 2 > / g, the modified graphene can be distributed on the surface of the coating by adding a trace amount after dispersion without influencing the transparency of the coating, and a conjugated structure formed by carbon atoms on the graphene can just be matched with the energy of ultraviolet rays, so that the ultraviolet rays can be effectively absorbed and shielded; meanwhile, the ultraviolet light absorber and the light stabilizer are matched for use, so that the aging resistance of the coating is further enhanced.

This invention provides a carbon dioxide-based 3D printing material, its preparation method, and its application. The carbon dioxide-based 3D printing material is prepared from raw materials comprising specific mass parts of PPC, PLA, and a compatibilizer. The compatibilizer is preferably a terpolymer of carbon dioxide, propylene oxide, and a functional monomer, wherein the functional monomer is selected from allyl glycidyl ether and / or glycidyl methacrylate having epoxy groups. Practical application has shown that the carbon dioxide-based 3D printing material provided by this invention exhibits significant impact resistance, shape memory, and self-healing effects. Its impact strength reaches 15.11 KJ / m according to the GB / T 1843-2008 standard for testing the unnotched impact strength of plastic cantilever beams. 2 The highest value can reach 20.54 KJ / m 2 Meanwhile, this carbon dioxide-based 3D printing material also possesses excellent shape memory properties.

The utility model relates to the technical field of photovoltaic power generation, in particular to a photovoltaic zinc-magnesium-aluminum-plated diversion trench, which comprises a diversion trench body, mounting plates and an anti-blocking device, the diversion trench body is U-shaped, the mounting plates are fixedly mounted at the left end and the right end of the diversion trench body, and the anti-blocking device is fixedly mounted at the left end and the right end of the diversion trench body. The anti-blocking device comprises a rectangular groove, a threaded rod, a sliding block, a moving plate, a cleaning rod and a driving motor, the rectangular groove is formed in the inner wall of one side of the flow guide groove body, the threaded rod is rotationally installed in the rectangular groove, the threaded rod drives the sliding block to linearly move in the rectangular groove in the rotating process, the sliding block drives the moving plate, and the cleaning rod is rotationally installed in the rectangular groove. The moving plate drives the cleaning rod to move in the diversion trench body, and when the cleaning rod moves to the position where sundries fall down, the sundries are pushed to move towards one end of the diversion trench body until the sundries are driven to the end of the diversion trench body and pushed out of the diversion trench body, and the situation that the interior of the diversion trench body is blocked is prevented.

The invention relates to the technical field of road engineering, in particular to a self-healing microcapsule preparation and healing performance quantitative evaluation method for asphalt, which comprises the following steps: immersing pretreated fly ash floating beads in waste oil, carrying out vacuum adsorption until saturation, taking out, wiping, spraying a polyvinyl alcohol aqueous solution for packaging, and finally mixing with matrix asphalt to obtain modified asphalt. The prepared self-healing microcapsule is smooth in surface, complete in capsule wall structure, high in chemical stability and good in thermal stability; the self-healing microcapsule modified asphalt is prepared after the self-healing microcapsule is added into the matrix asphalt, when microcracks are generated in the modified asphalt, the capsule wall is broken, the healing agent is released to achieve the purpose of repairing the microcracks, and the self-healing function is outstanding; the physical significance of evaluating the asphalt self-healing performance by adopting the fatigue factor recovery rate is clear, and the dynamic evolution process of asphalt self-healing can be effectively represented.

The invention discloses a cathode-free solid-state battery based on a multi-hydrogen-bond polyurethane polymer and a preparation method, and belongs to the technical field of solid-state batteries. The negative-electrode-free solid-state battery comprises a positive electrode, an electrolyte layer and a copper foil current collector, wherein a polyurethane polymer with multiple hydrogen bonds is introduced into the electrolyte layer. The polyurethane polymer with multiple hydrogen bonds forms a dynamic cross-linked hydrogen bond network through a plurality of hydrogen bond donors and hydrogen bond receptors contained in a molecular chain, and has an excellent self-repairing function. The polymer is introduced into an electrolyte layer, real-time protection and repair of an electrolyte-electrode interface are realized by utilizing the self-repairing characteristic of the polymer, generation and expansion of interface cracks are effectively inhibited, and a more uniform and stable electrolyte / copper foil interface is constructed. And the uniform interface can guide lithium to be uniformly deposited on the surface of the copper foil current collector, so that the growth of lithium dendrites and the generation of dead lithium are avoided, and the coulombic efficiency, the rate capability and the long cycle stability of the negative-electrode-free solid-state battery are remarkably improved.

The invention relates to polar 3, 4-isoprene rubber with a self-repairing function and a preparation method of the polar 3, 4-isoprene rubber with the self-repairing function, and the polar 3, 4-isoprene rubber has the structural general formula as follows: # imgabs0 #, r represents a substituent group on a benzene ring and is hydrogen, a C1-C20 alkyl group, a C6-C20 aryl group, a C1-C20 halogen-containing alkyl group or a halogen substituent group; m represents the number of substituent groups R and is an integer selected from 1-5, and when m is greater than or equal to 2, R is the same or different; the ratio of x to y ranges from 0.1 to 1000; and the value of n is 30 to 10000. The content of 3, 4-structural units in the polar 3, 4-isoprene rubber is not less than 85%; the insertion rate of polar alpha-olefin in the polar 3, 4-isoprene rubber copolymer can be freely adjusted according to the feeding ratio of monomers, the polarity of the copolymer can be improved by introducing oxygen-containing or sulfur-containing groups, so that the blending performance of polar 3, 4-isoprene rubber and other polymers is improved, and the copolymer also has an excellent self-repairing function.

The application discloses a kind of fast self-repairing alkoxylated polyethylene imine material and preparation method and application, it is related to solar photovoltaic packaging material technical field.The method includes alkoxylated ethenyl imidazole imidazolium double trifluoromethane sulfonimide monomer is dissolved in DMSO solvent, then a certain proportion of initiator is added as initiator, and under the protection of nitrogen atmosphere, radical polymerization reaction is initiated at 70~90 ℃, after multiple washing with ethyl acetate, alkoxylated polyethylene imine material is obtained.The application is based on alkoxylated imidazole monomer, through alkylation reaction, ion exchange reaction and radical polymerization reaction, successfully build alkoxylated polyethylene imine material, while designing to realize the fast self-repairing function of packaging material and the effect of inhibiting lead leakage, finally realize the lossless packaging of solar photovoltaic cell, improve the operating stability of photovoltaic product.

The application belongs to the field of polymer gel electrolyte, and discloses a polyurea-based gel electrolyte, a preparation method and application.The polyurea-based gel electrolyte comprises a soft segment, a hard segment and a eutectic solvent component, wherein the soft segment is a polyether amine, the hard segment is a polyisocyanate containing a benzene ring structure, and the soft segment and the hard segment are first formed into a polyurea skeleton and can be separated under the induction of the eutectic solvent.The application improves the specific composition and detailed structure of the electrolyte, uses polyether amine as the soft segment, uses polyisocyanate containing a benzene ring structure as the hard segment, and separates the soft segment and the hard segment under the induction of the eutectic solvent, so that the polyether amine and the eutectic solvent transmit ions as a functional phase, the benzene ring stacking structure formed through hydrogen bonding and pi-pi interaction serves as a reinforcing phase to maintain the mechanical stability of the electrolyte, and the separation of the functional phase and the reinforcing phase realizes the dual improvement of the electrochemical performance and the mechanical performance.

The utility model discloses a self-repairing vehicle body sticker which comprises a functional layer, a base material layer, a polyacrylate bonding layer and a bottom layer which are arranged in sequence, the functional layer comprises a zinc ion chelated polyurethane anionic polymer coating and a lignin-based polyurethane coating which are distributed at an interval, and one side of the zinc ion chelated polyurethane anionic polymer coating and one side of the lignin-based polyurethane coating are connected with the base material layer; one side, far away from the base material layer, of each of the zinc ion chelating polyurethane anionic polymer coating and the lignin-based polyurethane coating is coated with a wear-resistant layer. The vehicle body sticker disclosed by the utility model has excellent self-repairing capability, and the environmental protection performance of the material is better.