10results about How to "Improve interlayer adhesion" patented technology

The application discloses an epoxy asphalt binder and a preparation method thereof, and belongs to the technical field of asphalt preparation, in particular relates to the binder which is composed of modified asphalt, epoxy resin material, compatilizer and anti-aging agent, and the mass ratio of the modified asphalt, the epoxy resin material, the compatilizer and the anti-aging agent is 100:15-60:5-10:0.1-0.5.The epoxy asphalt binder prepared by the application has excellent bonding performance and flexibility, in particular, the bonding performance at high temperature is significantly better than that of modified emulsified asphalt or polymer modified asphalt, and the flexibility is better than that of epoxy resin binder.

The present application relates to the technical field of lithium ion batteries, in particular to a core-shell structure binder for lithium battery carbon-coated current collector, its preparation method and application, the present application takes polyacrylonitrile seed emulsion, passes into nitrogen, adds shell monomer pre-emulsion, potassium persulfate aqueous solution, warms, reacts, cools, adds anhydrous ethanol, centrifugal, removes impurities, dries, grinds, obtains core-shell structure binder. The compact, hydrophobic shell layer of the core-shell structure binder acts as a barrier to prevent oxygen and moisture in the air from entering the core layer, thereby protecting the cyano group of the polyacrylonitrile in the core layer; when the lithium battery carbon-coated current collector is coated with the positive electrode material, the N-methyl pyrrolidone in the positive electrode material can selectively permeate the shell layer and swell with the cyano group of the polyacrylonitrile in the core layer, thereby improving the interlayer adhesion between the carbon-coated layer and the positive electrode material through subsequent drying, and solving the problem of poor stability of traditional polyacrylonitrile-based binders.

This invention belongs to the field of road engineering and industrial solid waste resource utilization technology, and particularly relates to a construction method for heavy-duty roads in mining areas based on solid-oil toughened oil shale waste residue. The method involves constructing, from bottom to top, an existing layer treatment layer, a first bonding layer, a high-toughness surface layer, a second bonding layer, and a solid-oil toughened oil shale waste residue overlay layer on the existing road layer in the mining area. After crushing, screening, and drying, the oil shale waste residue undergoes surface modification using a silane coupling agent hydrolysate, and is then mixed with toughening oil components and dried to obtain solid-oil toughened oil shale waste residue. This overlay layer is then mixed with aggregates, fillers, and cementing materials, and spread and compacted to form the overlay layer. The existing layer treatment layer improves the base condition through defect repair and interface treatment. The two bonding layers enhance interlayer bonding, and the high-toughness surface layer improves structural toughness and stress dispersion capacity. This method significantly improves the load-bearing capacity, rutting resistance, fatigue cracking resistance, and interlayer stability of heavy-duty roads in mining areas, achieving efficient resource utilization of oil shale waste residue.

The utility model relates to the technical field of cables, in particular to a high-flame-retardant fireproof power cable, which comprises a conductor core, a mica tape fireproof layer, a ceramic composite insulating layer, a flame-retardant filling layer, a metal composite shielding layer, a flame-retardant wrapping layer and a flame-retardant sheath layer which are sequentially arranged from inside to outside, and the two layers of mica tapes are bonded through a high-temperature-resistant adhesive. The high-flame-retardancy fireproof power cable has the advantages that the mica tape fireproof layer of the high-flame-retardancy fireproof power cable adopts a double-layer staggered and overlapped wrapping structure, and a high-temperature-resistant adhesive is combined, so that a compact insulation barrier is formed at high temperature, and the erosion of flame to the conductor cores is effectively delayed; meanwhile, the ceramic composite insulating layer is made of a ceramic high polymer material, can be quickly sintered into a hard ceramic body in case of fire, and has a synergistic effect with the mica tape fire-resistant layer to doubly block high temperature and oxygen permeation, so that the cable can still maintain long-time power-on capability under the fire condition, and the fire resistance is far better than that of a common fire-resistant cable.

This invention relates to the field of flexible display technology and discloses a flexible polyimide display substrate and its preparation method. The method includes: firstly, preparing a polyamic acid slurry containing specific functional fillers; coating it onto a carrier substrate and imidizing it via programmed temperature rise to obtain a flexible substrate; subjecting the substrate surface to plasma treatment to improve its surface energy; subsequently constructing a conductive layer and an encapsulation layer sequentially to form a multilayer composite structure; and finally, after annealing, peeling it off from the carrier substrate to obtain the final display substrate. The functional filler is composed of modified nano-silica and surface-modified two-dimensional boron nitride nanosheets. The resulting flexible polyimide display substrate exhibits high transparency, low coefficient of thermal expansion, high dimensional stability, flexibility, and water and oxygen barrier properties. This invention improves the overall uniformity, dimensional stability, and reliability of the final flexible substrate's mechanical and thermal properties.

This invention discloses a galvanized steel sheet with good adhesion to an electron beam-cured coating, comprising a galvanized steel sheet, at least one surface of which has a composite coating. The composite coating contains the following effective components: an aqueous cationic polymer resin A, comprising 45-75 parts by weight; a compounded organosilane coupling agent B, comprising 15-45 parts by weight; the compounded organosilane coupling agent B is formed by the mixed hydrolysis and condensation of at least one organosilane coupling agent B1 containing an epoxy functional group and at least one organosilane coupling agent B2 containing an amino functional group; a silane coupling agent C containing unsaturated bonds, comprising 3-10 parts by weight; a water-soluble fluorine-containing compound D, wherein the fluorine element comprises 1.5-5 parts by weight; and a water-soluble phosphorus-containing compound E, wherein the phosphorus element comprises 2-5 parts by weight. This invention also discloses a surface treatment agent for galvanized steel sheets and a method for manufacturing a galvanized steel sheet with good adhesion to an electron beam-cured coating.

The utility model discloses an easy-to-clean kitchen key switch belongs to key switch technical field. This kind of easy-to-clean kitchen key switch, including main part, protection mechanism and installation mechanism, the main part includes key switch body, and the periphery of key switch body all is seted up with the clamping slot, the protection mechanism includes the apron, and the apron is set in the outside of key switch body, the installation mechanism includes the mounting plate, and the one side of mounting plate is connected with the one side of key switch body, and the both ends of mounting plate all are seted up with the mounting hole, and the other side of mounting plate is installed with the junction box, and the bottom of junction box is equipped with a pair of terminal blocks, and the outside of key switch body includes the membrane switch, the adhesive layer, the protection layer and waterproof oil -repellent layer, and the outside of membrane switch is provided with adhesive layer, and the outside of adhesive layer is provided with protection layer, and the outside of protection layer is provided with waterproof oil -repellent layer, the utility model discloses, can effectively improve the practicality of kitchen key switch, has higher practical value.

This invention discloses a flexible multifunctional composite film integrating heat dissipation and flame retardancy, its preparation method, and its application, belonging to the technical field of multifunctional composite film materials. The composite film is composed of MXene, graphene oxide (GO), and carbon nanotubes (CNTs) in a specific mass ratio, prepared by magnetic stirring, ultrasonic dispersion in a cold water bath, pulsed / gradient negative pressure vacuum filtration, and freeze-drying. The film thickness is 20-30 μm. In the layered structure of the film, GO sheets are inserted between MXene layers, and CNTs bridge the layers to form a three-dimensional thermally conductive network, achieving high in-plane thermal conductivity (≥4 W·m). ‑1 ·K ‑1 It also possesses excellent flame retardancy (limiting oxygen index LOI ≥ 28%, UL-94V-0 rated) and excellent mechanical flexibility. This film can be used as an integrated heat dissipation-flame retardant interface layer in high-power density electronic devices, electric vehicles, and other fields to address risks such as thermal runaway and fire.

The present invention relates to a nickel-plated heat-treated steel sheet for a battery case having excellent corrosion resistance and a method of manufacturing the same. In one embodiment, the nickel-plated heat-treated steel sheet includes a base steel sheet and a nickel layer formed on one or more surfaces of the base steel sheet, wherein the nickel layer is laminated in two or more layers, and the weight per unit decreases in order from the base steel sheet toward the surface of the nickel layer.

The application discloses an environment-friendly wall decoration coating layered spraying construction method, which comprises five stages of base surface pretreatment, high-pressure airless spraying of a permeation and solidification primer, air-assisted spraying of an elastic buffer intermediate coating, low-pressure spraying of a functional decorative surface coating and temperature and humidity control maintenance, adopts gradient pressure decreasing spraying process and wet-on-wet interlayer time window control technology, and realizes photocatalytic purification function through the synergic crosslinking film formation of epoxy soybean oil and tea polyphenol condensation tannin and the compounding of nano titanium dioxide and diatomite.