46 results about "Neoprene" patented technology

This invention discloses a water-stopping structure and construction method for vertical joints in ultra-long dam panels. The structure includes a mortar pad filled with grooves in the vertical joint. A neoprene rubber gasket is placed on the upper surface of the mortar pad, and a water-stopping copper sheet is placed on the neoprene rubber gasket. The water-stopping copper sheet includes a copper lug and two side wings positioned opposite each other on either side of the copper lug. The copper lug is filled with a flexible material and sealed with tape. The flexible filling material includes a neoprene rubber rod placed at the bend inside the copper lug and a polyethylene closed-cell foam board placed on one side of the neoprene rubber rod. A composite water-stopping layer covers the upper surfaces of the two side wings of the water-stopping copper sheet. Through this multi-layered synergistic seepage prevention structure, the rigid water-stopping load-bearing capacity and the flexible water-stopping deformation are adapted to each other, improving the water-stopping effect.

This invention discloses an aramid fiber reinforced solid conveyor belt and its preparation method, relating to the field of conveyor belt technology. Specifically, it includes the following steps: S1: Aramid fiber cloth passes through a continuous plasma surface treatment machine at a uniform speed, and its upper and lower surfaces are subjected to plasma activation treatment to obtain modified aramid fiber cloth; S2: (1) Natural rubber, styrene-butadiene rubber, chloroprene rubber, ethylene propylene diene monomer (EPDM) rubber, terpene phenolic resin, modifier, modified filler, bis-[3-(triethoxysilyl)propyl]tetrasulfide, zinc oxide, antioxidant, flame retardant, sodium stearate, vulcanizing agent, and vulcanization accelerator are added to a mixing machine and mixed to obtain a compound; (2) The compound is transferred to a calender and calendered to obtain a cover layer; S3: The cover layer, modified aramid fiber cloth, and cover layer are stacked in the order of top to bottom, and then rolled, bonded, and vulcanized to obtain an aramid fiber reinforced solid conveyor belt.

The present application relates to the field of rubber, in particular to a kind of flame-retardant neoprene and preparation method thereof.The present application first prepares the raw material of flame-retardant neoprene, mixes and masticates the raw material under certain conditions to obtain mixed rubber, and finally vulcanizes the mixed rubber to prepare a kind of flame-retardant neoprene;Its characteristics lie in that the composition of flame-retardant agent in the raw material of flame-retardant neoprene is the mixture of nano zinc oxide and nano magnesium oxide modified by silane coupling agent grafted onto hyperbranched polyester structure, which can improve the dispersibility of nano structure on one hand, prevent the occurrence of agglomeration phenomenon, and at the same time, the reaction efficiency can be improved by grafting the reactants together;On the other hand, the phosphorus-containing group and nitrogen-containing group of urea and phosphoric acid are grafted onto the hyperbranched polyester structure, so that the groups of hyperbranched polyester are rich in flame-retardant elements nitrogen and phosphorus, thereby significantly improving the flame-retardant performance of neoprene.

Abstract A fishing rod cover combining a neoprene base with a high-density foam tip, designed to provide enhanced protection for the rod tip, featuring an elastic loop for secure attachment. 4 4 5 10 15 20 25 30 20 24 26 47 10 1 8 Ja n 20 25 4 1 2025 2024264710 18 Jan 2 4 3 5 4

A pipe end cover device is provided. The device is comprised of a protective cap configured to fit over exposed ends of conduit or piping during construction or utility installation. The device comprises a body made from flexible and resilient materials such as neoprene, silicone, thermoplastic elastomer, canvas, or coated textile that enable elastic deformation to accommodate pipes of varied diameters. Embodiments of the device comprise additional features including longitudinal or radial slits to permit expansion, drawstrings routed through peripheral inlets for cinching, and strap-based retention systems secured via mechanical fasteners such as hook-and-loop closures or cam buckles. Some embodiments further comprise a molded or attached tab bearing indicia such as utility codes, icons, or color markings for identification, and grip textures to facilitate handling. The external surface of the body may be color-coded to correspond with standardized utility identifiers, such as red for electrical and blue for potable water.

The application discloses a kind of super-soft weather-resistant, fast solidification type polyurethane sealant and preparation method thereof, it is related to polyurethane sealant technical field, the sealant is obtained by mixing according to proportion by A component and B component;The A component is composed of modified polyurethane prepolymer, first plasticizer, dimethylbenzene, first filler, gamma-glycidyl ether oxygen propyl trimethoxysilane, water-removing agent and isocyanate curing agent;The B component is composed of second 3 functionality polyether polyol, second filler, second plasticizer, organic tin catalyst and delay catalyst;The modified polyurethane prepolymer is prepared by tackifying resin, terminal hydroxyl polybutadiene and first 3 functionality polyether polyol;The sealant of the application can realize stable bonding to neoprene and polyurethane base material, and shows excellent high and low temperature resistance and curing-operation balance performance, effectively solve the contradiction between the curing speed and operating performance of existing polyurethane sealant, improve product application practicability.

The application discloses a kind of wear-resistant anti-fracture shoe sole materials, including the layering connection of middle layer rubber layer and outer layer rubber layer;Middle layer rubber layer: natural rubber: 30-50 parts;Ternary ethylene-propylene 4045: 10-15 parts;Butadiene rubber: 30-40 parts;Chloroprene rubber: 10-15 parts;Terpene resin T100: 1-1.5 parts;Barium sulfate: 20-25 parts;White carbon black WL-180: 25-30 parts;PEG4000: 1-3 parts;Black masterbatch: 3-5 parts;Sulfur: 2-2.75 parts;Outer layer rubber layer: chloroprene rubber: 30-40 parts;Butadiene rubber: 40-60 parts;Nitrile rubber: 10-15 parts;Resin: 3-5 parts;White carbon black: 30-50 parts;Black masterbatch: 3-5 parts;Sulfur: 1-2 parts.The wear-resistant anti-fracture shoe sole material of the application considers anti-wear resistance and anti-fracture degree, and has good cold resistance, and is not prone to fracture.

The utility model discloses a kind of battery positive pole lug protective sealing ring of self-adaptive adjustment, it is related to pole lug sealing technical field, including sealing ring main part, this one kind of battery positive pole lug protective sealing ring of self-adaptive adjustment is also provided with stretch adjusting mechanism, comprising: neoprene outer layer, glass fiber sealing layer and insulating rubber inner layer, the inner wall of sealing ring main part is equipped with collection groove, the lower end of sealing ring main part is fixedly connected with high foot cover cap, insulating rubber inner layer is located in the inside of sealing ring main part, glass fiber sealing layer is located between neoprene outer layer and insulating rubber inner layer, neoprene outer layer has excellent weather resistance, chemical corrosion resistance, good elasticity can adapt to pole lug size change, glass fiber sealing layer is high in strength, good in thermal stability, stable in chemical property, can enhance structural stability, auxiliary size stable adjustment, insulating rubber inner layer has insulating property, three layers combination synergies realize self-adaptive sealing and insulating function.

This application discloses a portable lifting frame device for thermal power plant heating surface tube panels, comprising a tube panel placement area, an anti-slip fixing device, a counterweight placement area, lifting lugs, and a rotating shaft corner connection device. The placement area is constructed from 80-120mm thick Q235B channel steel welded into a frame, with internal horizontal support beams and anti-slip protrusions. The anti-slip device uses 50×50mm to 100×100mm angle steel uprights and neoprene rubber cross-patterned anti-slip pads to limit the tube panels. The counterweight area is rotatably connected to the placement area via a rotating shaft, with a load-bearing steel plate at the bottom. The lifting lugs are made of thick steel plates with a triangular reinforcing structure and holes of 40-60mm in diameter. Modules are assembled using bolts or slots. During lifting, the device rotates to 80-90°, utilizing the counterweight to balance and prevent tube panel deformation, eliminating the need for high-altitude unhooking. This solves the problems of easy deformation and complex operation associated with traditional dual-machine lifting, offering advantages such as portability, modularity, and safety.

The present application relates to the technical field of rescue service, especially to a dry water area rescue suit with intelligent protection control device, comprising a one-piece suit, the front of the one-piece suit is provided with an obliquely arranged waterproof zipper from the shoulder to the crotch. The obliquely arranged waterproof zipper cooperates with the transversely arranged waterproof zipper of the crotch to solve the problem of complicated wearing and taking off of the traditional one-piece rescue suit and inconvenient emergency toilet, the waist storage belt realizes convenient tool mounting, the storable flippers can be unfolded or stored according to the needs, the swimming efficiency in water is improved, and the use efficiency and function integration of the rescue suit are greatly improved due to the multi-structure optimization. The neck and wrist sealing elements of the present application are made of high-elasticity latex / chloroprene rubber material, the wrist is provided with a magic tape to adjust the tightness, can adapt to rescue personnel of different body types, ensure the sealing and waterproof effect, and improve the wearing comfort, and avoid the influence of excessive tightness on blood circulation.

The application discloses a wear-resistant sole material and a preparation method thereof, and belongs to the technical field of sole materials. The sole material comprises at least two layers of PVC sole substrate layers, and a modified adhesive layer is arranged between adjacent PVC sole substrate layers; the modified adhesive comprises methyl methacrylate grafted modified chloroprene rubber matrix and gamma-methacryloyloxypropyl trimethoxysilane surface modified nano-silica wear-resistant filler; the bonding surface of the PVC sole substrate layer is subjected to low-temperature plasma activation treatment and is provided with a plasticizer migration inhibition layer containing nano-porous molecular sieves. The application also discloses a preparation method of the sole material and application of the sole material in a functional sole. Through the synergistic effect of the modified adhesive and the interface pretreatment, the application solves the problems of insufficient wear resistance of the adhesive layer of the existing multilayer PVC sole, and the problems of adhesive peeling caused by plasticizer migration, and significantly improves the bonding strength, wear resistance and service life of the sole.

The laser protection for the side of the clothing exposed to the laser and the outer side of the gloves exposed to the laser is based on the functional combination of the materials used, consisting of a flexible, flame-retardant neoprene material that exhibits a high absorption effect of the laser energy and converts this energy into heat, which leads to carbonization of the material and thus forms a stable barrier for the laser.

The utility model discloses a hydraulic oil cylinder that high safety performance belongs to hydraulic oil cylinder technical field, and its technical scheme main points include hydraulic oil cylinder body, the bottom fixed connection of hydraulic oil cylinder body has the connecting mechanism, the surface fixed connection of connecting mechanism has the damping mechanism, and connecting mechanism realizes hydraulic oil cylinder body and the anti -vibration fastening of connecting mechanism through high -strength thread, and four limit rods form rigid frame to the left and right in front and back, and the radial displacement of damper is limited, prevents damping element overload deviation, and provides the installation reference for damper simultaneously, ensures the symmetry of damping mechanism, and the damper in damping mechanism can carry out damping dissipation to vibration energy, reduces vibration amplitude, and the fixed link is welded between damper bottom and fixed block, and the axial load of damper is dispersed to fixed plate chamfer place, avoids the weld cracking of single point stress, and the neoprene pad can cope with low -frequency vibration, prevents horizontal displacement when resonance.

The utility model discloses a quick cooling device is used in heat dissipation module processing, including transport heat dissipation frame, the upper end of transport heat dissipation frame is provided with the support plate, and the inside installation of transport heat dissipation frame has the conveyer belt, and the upper end of support plate is connected with liquid nitrogen heat dissipation box and heat dissipation frame, and the outer wall on liquid nitrogen heat dissipation box installs liquid nitrogen input pipe, and the upper end of liquid nitrogen input pipe installs fixed base and rotary valve, and the upper end fixed mounting of heat dissipation frame has water pipe and water injection mouth, and the outer wall on support plate and heat dissipation frame installs fan frame and fixed bolt, and the inside installation of fan frame has heat dissipation fan, and the inside installation of liquid nitrogen input pipe has inside protruding, and the bottom of liquid nitrogen input pipe is connected with neoprene base, and the device carries out integrated combination to liquid nitrogen spraying cooling, water mist auxiliary cooling and air cooling convection heat dissipation, realizes instantaneous low temperature cooling through liquid nitrogen spraying mouth, and is suitable for the quick cooling of high heat load working condition.

This invention relates to the field of special protective clothing fabric technology, and discloses a hydrological surveying suit fabric based on dot-matrix PUR hot melt adhesive composite and its preparation method. The fabric consists of, from the outside in, a first nylon fabric layer, a second PTFE microporous film layer, a third functional sponge layer, a fourth PTFE microporous film layer, and a fifth nylon warp-knitted layer; adjacent layers are bonded together by dot-matrix moisture-curing PUR hot melt adhesive; the third sponge layer is made of modified neoprene rubber, silica aerogel powder, and multilayer graphene, forming an interpenetrating network within. This invention utilizes the thermal insulation properties of aerogel and the electrical conductivity of graphene to synergistically provide long-lasting thermal protection and antistatic functions; the dot-matrix coating combined with the PTFE microporous film ensures waterproof and breathable properties; the step-by-step layering process releases internal stress, and combined with the moisture cross-linking and curing of the PUR hot melt adhesive, effectively prevents interfacial delamination and breakage under extreme cold stress conditions, fully meeting the needs of hydrological surveying operations.

This invention discloses a polymeric sealing material for PU valves and its preparation method, belonging to the field of synthetic polymeric sealing materials. The polymeric sealing material for PU valves of this invention, by mass parts, comprises the following raw material components: 100 parts of rubber compound, 2.5-3.5 parts of vulcanizing agent, 1-2 parts of crosslinking agent, 5-20 parts of plasticizer, 10-30 parts of carbon black, 0-1 part of stearic acid, 60-80 parts of hydrophilic polyurethane resin, 130-150 parts of hydrophilic monomer, and 10-20 parts of modified montmorillonite; wherein, the rubber compound... The hydrophilic polyurethane resin obtained by mixing nitrile rubber and chloroprene rubber is obtained from a hydroxyethyl methacrylate-terminated polyether-type PU prepolymer; the crosslinking agent is obtained by reacting 4,4'-diaminodiphenylamine with 3,4-epoxycyclohexylmethyl methacrylate; the hydrophilic monomer includes sodium methacrylate; the modified montmorillonite is obtained by modifying montmorillonite with methacryloyloxyethyltrimethylammonium chloride; the polymer sealing material for PU valves of the present invention has low moisture permeability, good long-term sealing effect, good mechanical properties, and good weather resistance.

The application relates to the technical field of rubber materials, in particular to a high-strength anti-fracture automobile rubber pipe material and a preparation method thereof; the rubber pipe material comprises the following components in parts by weight: a rubber matrix, an oil-resistant antioxidant and an inorganic filler; wherein the rubber matrix is selected from at least one of nitrile rubber, hydrogenated nitrile rubber, chlorobutyl rubber and ethylene-propylene-diene rubber; the oil-resistant antioxidant is selected from a compound with the structure of formula I-A: The application provides an automobile rubber pipe material with high strength, anti-fracture and high oil resistance.

This invention discloses an acid-resistant insulating black smoke adhesive, its preparation method, and its application. The insulating black smoke adhesive comprises the following raw materials in parts by weight: 60-80 parts brominated butyl rubber; 20-40 parts chloroprene rubber; 20-35 parts reinforcing carbon black; 30-50 parts ultrafine silica; 30-50 parts calcium carbonate; 12-22 parts composite crosslinking agent; 2-3 parts acid-resistant additive; 2-3 parts silane coupling agent; 4-8 parts processing aid; and 2-5 parts antioxidant. Compared to existing technologies, this invention, through a composite reinforcing insulation system of ultrafine silica and calcium carbonate, and a composite crosslinking system of metal oxides and resin vulcanizing agents, synergistically solves the technical problem that existing brominated butyl rubber cannot simultaneously achieve corrosion resistance, high insulation, and high airtightness in hydrofluoric acid environments. Furthermore, the use of a blending process results in low energy consumption, rapid vulcanization, and significant cost advantages, making it suitable for large-scale production of sealing components in the chemical, new energy battery, and other fields.

This utility model discloses a water-blocking, salt spray-resistant, and radiation-resistant power cable, comprising a low-smoke halogen-free sheath. The low-smoke halogen-free sheath has a low-smoke halogen-free wrapping tape inside. The inner surface of the low-smoke halogen-free wrapping tape has an inner water-blocking section. Inside the inner water-blocking section is an inner filling section. Inside the inner filling section is an aluminum-plastic longitudinal sheath. Multiple conductors are arranged around the inner perimeter of the aluminum-plastic longitudinal sheath. The surface of each conductor is wrapped with an outer water-blocking tape. The surface of the outer water-blocking tape is covered with low-smoke halogen-free insulation material. Alkali-free filler rope is filled between the low-smoke halogen-free insulation material and the aluminum-plastic longitudinal sheath. In this utility model, the entire inner filling section is made of neoprene rubber, which has excellent sealing performance, thus blocking moisture from entering the conductor. Simultaneously, the inner water-blocking section is made of superabsorbent polymer resin, which absorbs moisture, thereby preventing moisture from seeping into the cable.

This invention discloses a method for preparing a flexible PAN / TiO2 / rubber composite electromagnetic shielding film, characterized by the following steps: (1) using PAN and 6% TiO2 as precursors, a casting solution is prepared, and electrospinning is used to spin a 10μm~20μm film; (2) after pre-oxidation at 180℃~200℃ and carbonization at 1200℃~1500℃, a C@TiO2 electromagnetic shielding film is obtained; (3) using chloroprene rubber as a matrix, the C@TiO2 electromagnetic shielding film / rubber sheet is stacked layer by layer through dry lamination hot vulcanization method for 10 alternating times to obtain a flexible PAN / TiO2 / rubber composite electromagnetic shielding film.

The utility model relates to waterproof graphene electric heating rescue gloves belong to rescue gloves technical field, including waterproof gloves main part, graphene electric heating film, magic tape arm band, waterproof battery, waterproof gloves main part sets up neoprene thermal layer and wear -resisting layer, waterproof gloves main part sets up and places the groove with graphene electric heating film, waterproof gloves main part sets up moisture absorption sweat fabric lining, waterproof gloves main part sets up magic tape wrist band, magic tape arm band sets up battery storage bag, waterproof battery is placed in battery storage bag. The utility model, glove outer configuration has antiskid layer, inside configuration has graphene heating film, configuration and battery placement area, can be used for power supply to graphene heating film when configuring waterproof battery under water diving or winter water area rescue, make overwater rescue more convenient, prevent hand stiff because of cold, can give consideration to protectivity, flexibility and comfort in extreme environment, improve rescue efficiency.

The application relates to the field of low earth orbit battery packaging, in particular to a low earth orbit (LEO) perovskite solar cell packaging structure and process, the structure comprising a docking module and a frame, the module comprising a top sealing layer, an epoxy adhesive layer, a packaging isolation film layer, a battery piece and a substrate layer, and the inner adhesive layer of the frame comprising an epoxy adhesive layer, a fluororubber layer and a chloroprene rubber adhesive layer. The process comprises isolation film material cutting, isolation film material and battery piece bonding, module face sealing, packaging backboard bonding, frame slot insertion after frame slot glue coating, U-shaped frame and one-shaped frame combination, normal temperature curing and excess glue trimming. The sealing stability, space adaptability and stress control of the whole packaging are strengthened, the negative phenomena such as delamination and cracking easily occurring in the space environment are avoided, and the battery piece can keep long-term reliable operation in the extreme environment of high humidity, high frequency and high temperature cycle, and high vacuum.

The utility model discloses a kind of conical chain wheel drums, including connecting shaft, the right end of connecting shaft outer surface is fixedly connected with cylinder, and the left side of cylinder is fixedly connected with sprocket, the right end of cylinder inner cavity and the left end of sprocket inner cavity are movably connected with bearing, and the outside of bearing is provided with bearing circlip, the left and right sides of connecting shaft are all provided with thread groove, the diameter of connecting shaft is 15mm, the diameter of thread groove is 8mm, and the depth of thread groove is 20mm.The utility model is provided with wear-resistant protective layer, the EPDM layer included can play first layer wear-resistant protective treatment to cylinder, and the nitrile rubber layer can play second layer wear-resistant protective treatment to cylinder after EPDM layer is damaged, high-temperature-resistant protective layer is provided, the chloroprene rubber layer included can play first layer high-temperature-resistant protective treatment to cylinder after nitrile rubber layer is damaged, and the chlorinated rubber layer can play second layer high-temperature-resistant protective treatment to cylinder after chloroprene rubber layer is damaged.

The utility model discloses a physiotherapy arm sleeve, it includes main part and fixed part, the main part is made of composite cloth, the composite cloth contains 100% neoprene rubber, is equipped with inner lining in the inside, the fixed part is made of strong waterproof nylon pull frame material, and realizes the tightness adjusting function through magic tape bandage, the length of magic tape bandage can be cut according to actual demand. The utility model can provide good fixed effect and have comfort and convenience.

The present application relates to the technical field of fabric, in particular to a kind of multilayer composite chemical protective clothing fabric and its preparation process.A kind of preparation process of multilayer composite chemical protective clothing fabric, comprising: the preparation of hydrophobic modifier, the preparation of modified water-based polyurethane, the preparation of modified graphene filler, the preparation of protective barrier fabric, the preparation of chemical protective clothing fabric.The fabric of the present application adopts layered composite structure, the inner layer is made of spandex fiber, bamboo fiber, viscose fiber blend, can provide good flexibility, moisture permeability and wearing comfort;The outer layer is made of aramid fiber and nylon blend, impart high strength, wear resistance and tear resistance to the fabric, strengthen physical protection;Chloroprene rubber layer and protective barrier fabric are arranged in the middle, form double chemical barrier system, can efficiently block the penetration of various organic / inorganic chemical reagents.

To provide a high-pressure hose having excellent abrasion resistance, oil resistance, flame retardancy, scorch resistance, etc.　Provided is a rubber composition for a high-pressure hose outer surface containing the following components (A)-(F). Per 100 total mass parts of components (A)-(C), the content of component (A) is 40-55 mass parts, the content of component (B) is 40-55 mass parts, the content of component (C) is 5-10 mass parts, and the content of component (F) is 2-5 mass parts.　(A) Chloroprene rubber, (B) Butadiene rubber, (C) Acrylonitrile-butadiene rubber, (D) Sulfenamide vulcanization accelerator and / or thiazole vulcanization accelerator, (E) Dithiocarbamate vulcanization accelerator and / or thiuram vulcanization accelerator, and (F) sulfur

This utility model discloses a neoprene oil seal for underwater use, comprising: a rubber ring, the upper surface of which has a first mating groove, and the sidewall of the first mating groove has a second mating groove, the interior of the second mating groove being connected to the interior of the first mating groove; the lower surface of the rubber ring has a waterproof groove, the sidewall of which has a first waterproof lip, the upper surface of which is fixedly connected to the rubber ring, and the upper surface of the first waterproof lip is fixedly connected to a second waterproof lip. Through the coordinated operation of the second and first waterproof lips, the dual protection of this structure greatly reduces the possibility of water penetration, forming a reliable multi-layered protection system and enhancing the overall waterproof performance. The second mating groove ensures the rubber ring is securely installed, reducing gaps caused by improper installation, indirectly improving the waterproof effect, providing strong support for waterproofing, and ensuring the seal's tightness in underwater environments.

This invention provides a chloroprene-based polymer latex composition that yields an adhesive composition with excellent initial adhesive strength, and an adhesive composition containing the chloroprene-based polymer latex composition. According to the invention, a chloroprene-based polymer latex composition is provided, comprising a chloroprene polymer and an aromatic compound having 7 to 10 carbon atoms, wherein the total content of the aromatic compound having 7 to 10 carbon atoms in the aforementioned chloroprene-based polymer latex composition is 0.0001 to 0.0100 parts by mass relative to 100 parts by mass of solid components in the aforementioned chloroprene-based polymer latex composition.