18results about How to "Improve bonding" patented technology

The invention discloses special model wax for a high-temperature alloy and a preparation method of the special model wax. The special model wax comprises the following raw material components in parts by weight: 15-45 parts of paraffin, 5-25 parts of a crystallization accelerant, 20-50 parts of tackifying resin, 1-5 parts of an auxiliary stabilizer, 1-3 parts of a flame retardant, 5-8 parts of filler and 1-3 parts of polyethylene wax micro powder. The model wax is prepared by mixing the raw material components. The filler is selected from at least one of ultra-high molecular weight polypropylene, nylon, polyurethane, high molecular polystyrene, graphene oxide, fluorinated graphene oxide and flexible phosphate modified boron nitride. The prepared model wax has the advantages of being good in fluidity, high in bending strength, small in linear shrinkage rate and thermal expansion coefficient and good in size stability, the preparation technology is simple, and the cost is low, so that the model wax special for the high-temperature alloy has wide market prospects, and the requirements of the current market are met.

The invention relates to the technical field of packaging adhesive films, in particular to a packaging adhesive film for a light flexible assembly. The packaging adhesive film comprises a polyester bonding layer, a silane crosslinking metallocene polyolefin layer and a high-viscosity barrier layer, and the polyester bonding layer is connected with the high-viscosity barrier layer through the silane crosslinking metallocene polyolefin layer. The adhesive tape has the bonding performance of silane modified polyurethane resin and ETFE, has the insulativity and water resistance of the metallocene intermediate layer, and also has the ion adsorption barrier ability and bonding ability of the third layer after modification of ethylene-epoxy acrylic acid-vinyl alcohol resin.

The invention belongs to the technical field of high polymer materials, and particularly relates to organic silicon modified polyurethane polystyrene foam as well as a preparation method and application thereof. The polystyrene foam comprises a component A and a component B, the component A is prepared from 40 to 60 parts of polyethylene oxide polyol, 25 to 35 parts of cashew nut shell oil polyol, 15 to 25 parts of castor oil modified polyol, 5 to 10 parts of modified resin A, 18 to 22 parts of flame retardant filler, 0.5 to 1.5 parts of foam stabilizer, 0.1 to 0.2 part of catalyst and 0.4 to 0.9 part of pure water; the modified resin A is organic silicon modified resin which contains active amido and has alkoxy at the tail end; and the component B comprises the following components in parts by weight: 75-85 parts of polymerized MDI and 15-25 parts of prepolymer A. According to the invention, an organic silicon chain segment is connected into a polyurethane network in a chemical bond manner, so that high tensile strength and high bonding strength are maintained while the elongation at break is improved, and the technical problem that the performance of the polyurethane polystyrene foam is difficult to consider at the same time is solved.

The utility model discloses a polyurethane roller 90-degree peeling test fixture, which comprises a roller core, a first connector and a second connector, the first connector is provided with a concave accommodating cavity, a transverse limiting rod is arranged in the concave accommodating cavity, the roller core is sleeved on the transverse limiting rod, the second connector comprises an adapter and two clamping plates, and the two clamping plates are connected with the adapter. The two clamping plates are provided with locking rod bolt assemblies and lifting rods, one end of the adapter is arranged on the lifting rods in a sleeving mode, the other end of the adapter is provided with a second connecting part connected with a tensile machine, the first connector is further provided with a first connecting part connected with the tensile machine, and the surface of the wheel core is bonded with one end of a polyurethane test strip. And the other end of the polyurethane test strip is arranged between the two clamping plates and is clamped and fixed through a lock rod bolt assembly. The device is accurate in test data, wide in application range, high in universality, stable and reliable.

The invention provides a pole piece of a lithium ion battery and a preparation method of the pole piece, the pole piece of the lithium ion battery comprises a current collector and an active material coated on the current collector, and by arranging the active material and an adhesive, the active material can be conveniently and rapidly fixed when being extruded and arranged on the current collector along an angle; the assembly state of the active material on the current collector is stabilized, the active material is placed in the slit die cavity to be extruded, the active material moves and deforms towards the single side direction, so that the structure becomes long and narrow, and the end part of the long and narrow active material is connected with the current collector to be rolled, so that the tortuosity of the lithium ion battery pole piece is reduced, and the service life of the lithium ion battery pole piece is prolonged. And the migration rate of lithium ions in the pole piece and the embedding rate of the lithium ions in the active material are accelerated, meanwhile, the problem that the pole piece is expanded and increased due to lithium ion embedding in the thickness direction of the pole piece is solved, and the probability of deformation of the lithium ion battery is reduced.

The application discloses an anti-erosion auxiliary gel material and a preparation method and application thereof. The preparation method of the anti-erosion auxiliary gel material comprises the following steps: 1) mixing regenerated red brick powder with a particle size of 3-10 microns, waste concrete regenerated micro powder with a particle size of less than 10 microns and water to perform a pre-hydration reaction, and then separating a solid product to obtain pre-hydration regenerated powder; 2) calcining the pre-hydration regenerated powder, and then rapidly cooling to room temperature and performing grinding to obtain active regenerated powder; and 3) uniformly mixing the regenerated red brick powder with a particle size of less than 3 microns and the active regenerated powder to obtain the anti-erosion auxiliary gel material. The anti-erosion auxiliary gel material can be added in a large amount in concrete, can effectively improve the anti-Cl ‑ erosion performance of the concrete, does not affect the mechanical properties of the concrete, and is suitable for large-scale industrialized production and application.

The invention belongs to the technical field of optical elements, and particularly relates to an endoscope manufacturing process and an endoscope manufactured by the endoscope manufacturing process, and the endoscope manufacturing process comprises the following steps: S1, light guide fiber pretreatment; s2, pretreating the oxide powder; s3, constructing an optical signal path and an electric path; s4, constructing an indium tin oxide conductive band; and S5, sealing the lens and the lens body. The endoscope comprises an endoscope body, a lens and an operation handle are arranged at the two ends of the endoscope body respectively, the endoscope body comprises an endoscope body base body, a light guide fiber and a stainless steel metal layer are arranged outside the endoscope body base body in a matched mode, an open blind hole is formed in the stainless steel metal layer, the open blind hole is filled with resin, and a resin anchoring body is formed in the open blind hole. Forming a resin layer on the surface of the stainless steel metal layer. The problem that an existing endoscope illumination mode occupies space is solved, meanwhile, the combination condition of the endoscope body base body and the stainless steel metal layer is improved, and the reliability and stability of the endoscope are improved.

The application belongs to the field of ceramic powder preparation, and discloses a method for in-situ preparation of high-performance TiB2-B4C composite ceramic from sapphire fine grinding waste. The method uses the waste produced in the sapphire grinding process as raw material (B4C, Al2O3 and Fe), adds TiO2 and C after alkali washing and purification, and combines with the discharge plasma sintering to in-situ prepare TiB2-B4C composite ceramic. The method not only realizes the comprehensive recovery of B4C in the sapphire fine grinding waste slurry, reduces environmental pollution, but also provides a method for in-situ preparation of TiB2-B4C composite ceramic from waste, changes waste into treasure, and realizes the secondary use of resources. In addition, the raw material cost is low, and the method has obvious economic value and environmental protection significance. The method has the advantages of short process, small pollution, simplicity and the like, and can be used for industrial production.

The present invention belongs to solar cell material technology, and specifically relates to a conductive paste for a battery and a preparation method thereof, comprising the following raw materials in parts by weight: 0.5-3 parts of modified epoxy resin, 0.5-3 parts of hyperbranched epoxy resin, 0.5-2 parts of multifunctional epoxy resin, 0.5-1.2 parts of curing agent, 0.5-4 parts of organic solvent, 0.1-0.5 parts of surface additive, 0.1-1 parts of thixotropic agent, 50-70 parts of silver-nickel-copper powder, and 10-30 parts of high-brightness silver powder. The conductive paste prepared by the present invention has the characteristics of low-temperature curing, low cost, and high adhesion, can effectively reduce the silver content, reduce costs, and can effectively promote the cost reduction requirements of HIT batteries.

The application provides a space on-orbit flexible sealant nail integrated self-sensing pressure sealing patch, which adopts a form of a sealant patch, and designs a stepped sealant nail integrated layered structure, which comprises a stepped flexible sealant nail integrated support layer, a flexible sealant body sealing and bonding layer, a metal protective backing, an aluminized film packaging bag, a silicon-based release paper, a ring-shaped film piezoresistive pressure sensor, a direct current ultra-fine heating wire, a micro 6-pin rectangular electric connector female head, a temperature measuring sensor PT100 and a portable sensing and processing module. By using the scheme, the problems that the existing leak sealing and repairing technologies cannot accurately and completely seal unknown shape leak holes, have poor space environment adaptability, cannot bear pressure and have poor anti-splitting performance and the like can be solved, and a better leak sealing effect is achieved.

The present invention discloses a method for repairing the surface defects of a column cylinder body by using alloy cladding remanufacturing technology, comprising the following steps: first measuring and removing the original fatigue layer and pitting layer, then adjusting the surface quality, and then using cold arc cladding wire to form alloy cladding layers on the inner wall sliding surface, outer circle, cylinder mouth, and bottom valve hole of the column cylinder body, respectively, and annealing after fine machining, polishing, flaw detection, and repair welding, and finally quality inspection; wherein, the cold arc cladding wire at the inner wall sliding surface of the column cylinder body is a copper alloy welding wire, and the cold arc cladding wire at the outer circle, cylinder mouth, and bottom valve hole of the column cylinder body is an iron alloy welding wire, and the surfaces of the copper alloy welding wire and the iron alloy welding wire are coated with a nano-composite coating. The present invention achieves the purpose of repair and remanufacturing by using different welding wires to clad different parts of the column cylinder body to form an alloy cladding layer, thereby improving the corrosion resistance and wear resistance of the column cylinder body, thereby better exerting the performance of the column and improving the service life of the column underground.

A spiral boosting extrusion screw comprises a rod body and screw flights arranged on the rod body, shearing concave parts are distributed on the end face of the rod body at intervals, and the bottom faces of the shearing concave parts are gradually lifted to be in smooth transition with the side walls of the screw flights on the end face of the rod body. The shearing concave part and the corresponding screw edge on the end surface of the rod body form a shearing convex angle for extruding and shearing materials, and the bottom surface of the shearing concave part is a step-shaped table surface capable of preventing the materials from being bonded. The material shearing device has the advantages that material shearing can be increased, material uniformity is improved, meanwhile, the stepped table board reduces the area of the end face of the rod body on the same plane, materials are not prone to being attached, material attachment is reduced, and the cleanliness of the end face is high in the working process; pressure can be rapidly gathered and then rapidly released, materials can be separated from the end face of the rod body, and material adhesion is further reduced.

The invention belongs to the technical field of novel materials, and particularly relates to a PVDF / PEMA-carbon fiber integrated structure optimized carbon fiber / epoxy resin composite material constructed based on a roller electrostatic spinning technology, a preparation method and application. According to the invention, carbon fiber is used as a base material, and roller electrostatic spinning PVDF / PEMA micro-nano fiber is used as a high-performance modifier. By introducing electrostatic spinning PVDF / PEMA micro-nano fibers, the interfacial interaction between the carbon fibers and a resin matrix is enhanced, and a micro-nano fiber bridging structure is constructed to reinforce interlayer bonding, so that the carbon fiber / epoxy resin composite material with an optimized PVDF / PEMA-carbon fiber integrated structure constructed by a roller electrostatic spinning technology is prepared.

The application discloses a connecting structure of prefabricated reinforced concrete columns and beams and a construction method thereof, and the structure comprises a lower prefabricated reinforced concrete column, an upper prefabricated reinforced concrete column and a beam arranged on the lower prefabricated reinforced concrete column, the upper end of the lower prefabricated reinforced concrete column and the upper prefabricated reinforced concrete column is provided with a hoop hoop steel plate, the lower end is provided with a vertical H-shaped short steel and a prefabricated column short plate, and column longitudinal reinforcement is arranged in the inside; the top end of the hoop hoop steel plate is welded with a prefabricated column top plate, the inside is provided with a lower layer horizontal reinforcing plate and an upper layer horizontal reinforcing plate, the lower end of the column longitudinal reinforcement is anchored on the prefabricated column end plate through a bolt anchor head, and the upper end is anchored on the upper layer horizontal reinforcing plate through a bolt anchor head; the vertical H-shaped short steel is welded with the prefabricated pile top plate, and the connecting area of the lower prefabricated reinforced concrete column and the upper prefabricated reinforced concrete column is filled with concrete. The application improves the connecting reliability of the upper prefabricated reinforced concrete column and the lower prefabricated reinforced concrete column and the safety of the overall structure.

The invention relates to the technical field of waterproof treatment in bridge engineering, and particularly discloses an independent waterproof bonding layer structure of a concrete bridge deck and a construction method of the independent waterproof bonding layer structure. A concrete bridge floor independent waterproof bonding layer structure comprises a base layer bonding layer, a flexible reinforcing layer and a reinforced bonding layer, the flexible reinforcing layer is located between the base layer bonding layer and the reinforced bonding layer, and the flexible reinforcing layer is prepared from, by weight, 50-60 parts of asphalt, 30-40 parts of butadiene styrene rubber, 20-30 parts of styrene-butadiene rubber, 20-30 parts of styrene-butadiene rubber, 20-30 parts of styrene-butadiene rubber, 20-30 parts of styrene-butadiene rubber and 20-30 parts of rubber powder. The adhesive comprises the following components in parts by weight: 20-30 parts of hydrogenated styrene-butadiene block copolymer, 10-20 parts of hydrated silicon dioxide, 5-10 parts of tackifier, 5-10 parts of coupling agent and 10-20 parts of reinforcing filler. Through the synergistic interaction of the base layer bonding layer, the flexible reinforcing layer and the reinforced bonding layer, the formed waterproof bonding layer structure has high bonding strength and waterproof performance.

The invention provides a composite membrane, a self-adhesive polymer modified asphalt waterproof coiled material and a preparation method, and relates to the technical field of membrane materials, the composite membrane comprises a first membrane layer, a second membrane layer and a third membrane layer; the first film layer comprises a polyolefin film, a polyester film, a modified polyolefin film or a modified polyester film; the second membrane layer comprises a fiber membrane impregnated with impregnation liquid; the third film layer comprises a modified polyolefin film or a modified polyester film; the impregnation liquid comprises asphalt and silica gel. The coiled material prepared by adopting the composite film has the advantages that the self-adhesive asphalt layer is flat, the overlapping edge is dense and free of water channeling, and the coiled material has the characteristics of tear resistance, excellent dimensional stability, softness and good construction fitness. And the requirements of waterproof engineering of maintenance and newly-built roofs can be met.

The invention relates to the technical field of asphalt shingle production, in particular to tire material input equipment for asphalt shingle production and a using method thereof.The tire material input equipment comprises an input device and a drying device, the input device comprises a rack and an output mechanism arranged on the rack, the output mechanism comprises a groove and a limiting plate, the groove is formed in the top of one end of the rack, and the limiting plate is arranged in the groove; a roller shaft slides into the groove, an inserting groove is formed in one end of the roller shaft, limiting plates are installed at the two side ends of the rack correspondingly, the output end of the output mechanism is matched with the input end of the drying device, and the output end of the drying device is matched with the input end of the asphalt shingle production line. And meanwhile, the quality stability of the input glass fiber tire material is ensured, and the product processing stability is improved.

The invention relates to the technical field of waterproof treatment in bridge engineering, and particularly discloses an independent waterproof bonding layer structure of a concrete bridge deck and a construction method of the independent waterproof bonding layer structure. A concrete bridge floor independent waterproof bonding layer structure comprises a base layer bonding layer, a flexible reinforcing layer and a reinforced bonding layer, the flexible reinforcing layer is located between the base layer bonding layer and the reinforced bonding layer, and the flexible reinforcing layer is prepared from, by weight, 50-60 parts of asphalt, 30-40 parts of butadiene styrene rubber, 20-30 parts of styrene-butadiene rubber, 20-30 parts of styrene-butadiene rubber, 20-30 parts of styrene-butadiene rubber, 20-30 parts of styrene-butadiene rubber and 20-30 parts of rubber powder. The adhesive comprises the following components in parts by weight: 20-30 parts of hydrogenated styrene-butadiene block copolymer, 10-20 parts of hydrated silicon dioxide, 5-10 parts of tackifier, 5-10 parts of coupling agent and 10-20 parts of reinforcing filler. Through the synergistic interaction of the base layer bonding layer, the flexible reinforcing layer and the reinforced bonding layer, the formed waterproof bonding layer structure has high bonding strength and waterproof performance.