2702results about "Rubber layered products" patented technology

The invention provides a flame-retardant heat-insulating fabric for fire-fighting clothes and a preparation process thereof, and belongs to the technical field of fire-fighting fabrics. The preparation process comprises the following steps: preparing coated modified ammonium polyphosphate; modified expanded perlite; preparing a flame-retardant outer-layer fabric; preparing a heat insulation core layer fabric; preparing an antibacterial inner layer fabric; and bonding. The flame-retardant heat-insulating fabric for the fire-fighting clothes comprises a flame-retardant outer-layer fabric, a heat-insulating core-layer fabric and an antibacterial inner-layer fabric, ammonium polyphosphate is dispersed in deionized water, polyethyleneimine is added under the acidic condition, amino on the polyethyleneimine and ammonia ions of the ammonium polyphosphate are subjected to an ion exchange reaction, and the flame-retardant heat-insulating fabric for the fire-fighting clothes is obtained. According to the flame-retardant outer-layer fabric, ammonium polyphosphate is preliminarily coated, then a hydroxyethylidene diphosphonic acid solution is added for a salt forming reaction, coated modified ammonium polyphosphate with a core-shell structure is prepared, the coated modified ammonium polyphosphate and polyester powder are mixed and granulated, then the flame-retardant outer-layer fabric is prepared, and the flame-retardant property of the flame-retardant outer-layer fabric can be effectively improved.

The invention belongs to the technical field of sole materials, and particularly discloses an anti-skid sole material and a preparation method thereof. The anti-skid sole material comprises a sole body, the sole body comprises an anti-skid layer and a rubber layer, and the anti-skid layer comprises the following raw material components in parts by weight; comprising 50-55 parts of polyurethane, 16-20 parts of a silicon carbide composite material, 10-14 parts of polyethylene composite fibers, 4-8 parts of a maleic anhydride grafted polyethylene octylene co-elastomer, 3-5 parts of a silane coupling agent, 1-2 parts of an antioxidant and 0.5-0.8 part of a lubricant. The anti-skid sole material prepared in the invention has excellent mechanical strength, skid resistance and wear resistance, and can provide protection for feet and prolong the service life of soles.

An improved Type C air conditioning hose is provided that meets or exceeds SAE J2064 and J3062 requirements, offers good flexibility and fracture resistance, and exhibits improved permeation ratings for refrigerants including R134a and R1234yf. The multilayer type C barrier air conditioning hose includes an inner elastomeric tube layer capable of direct bonding to plastic without an intervening adhesive. The inner elastomeric layer is prepared from a first elastomeric composition comprising a blend of an ethylene propylene diene terpolymer rubber (EPDM) and a chloroprene rubber (CR), phenylenedimaleimide, and a maleated compound.

The present invention relates to an elastomeric laminate comprising at least two adjacent layers, wherein: the rubber composition constituting the first layer is based on 20 phr to 100 phr of at least one copolymer comprising ethylene units and 1,3-diene units of formula CH2=CR-CH=CH2, the ethylene units in the copolymer representing more than 50 mol% of the copolymer monomer units, and the symbol R represents a hydrocarbon chain having 3 to 20 carbon atoms, 0 phr to 80 phr of at least one diene elastomer having a diene unit weight concentration greater than 50%, 10 phr to 100 phr of a plasticizing system comprising at least one plasticizing resin having a glass transition temperature higher than 20°C and / or at least one plasticizer which is liquid at 23°C, and a reinforcing filler, and a crosslinking system; the rubber composition constituting the second layer is based on a diene elastomer having a diene unit weight concentration greater than 50% and a crosslinking system. The present invention also relates to a rubber article, in particular a pneumatic or non-pneumatic tire, comprising such a laminate.

The present application relates to a pickleball racket. The pickleball racket includes a racket main body and a handle. The handle is connected to one side of the racket main body. The racket main body includes a carbon fiber layer, a glass fiber layer, an EVA layer and a PP honeycomb layer, which are arranged in a stacked manner. The PP honeycomb layer has a honeycomb slot structure. In this embodiment, due to high strength and rigidity of a carbon fiber material, the carbon fiber layer can be provided to improve the stability and durability of the racket. The pickleball racket in the present application can absorb and reduce the vibration and impact generated in the event of collision of the racket with a ball, thereby greatly reducing the noise, and also reducing a force on the hand, and improving a shock-absorbing effect of the racket.

The high-performance insulation blanket comprises a surface layer, an EVA adhesive layer and a surface layer which are sequentially arranged, and the surface layer and the EVA adhesive layer are attached in a calendering mode; the surface layer is prepared from the following raw materials in parts by weight: 45 to 55 parts of ethylene-vinyl acetate copolymer, 10 to 20 parts of natural rubber, 8 to 18 parts of PA6 short fiber, 7 to 10 parts of dopamine modified mica powder, 6 to 10 parts of MAH-g-EVA, 10 to 15 parts of flame retardant, 0.2 to 0.4 part of antioxidant, 0.8 to 1.2 parts of lubricant and 2 to 4 parts of coloring agent. In the surface layer formula system, under the synergistic effect of the natural rubber, the PA6 short fiber and the dopamine modified mica powder, the tear resistance and puncture resistance of the material are greatly improved, and meanwhile, the material has excellent comprehensive properties such as high temperature resistance, insulation, flame retardance and aging resistance, and is suitable for the field of high-requirement insulation protection.

The invention relates to the technical field of shock absorption and seismic resistance of buildings, in particular to a modular plate type viscoelastic damper and a preparation method thereof. The modular plate-type viscoelastic damper comprises a rigid connecting layer, a viscoelastic damping layer and a rigid connecting layer which are sequentially arranged from top to bottom. The viscoelastic damping layer is made of a viscoelastic damping material; the viscoelastic damping material is prepared from the following raw materials in parts by mass: 60 to 100 parts of halogenated butyl rubber, 0 to 40 parts of polar rubber, 15 to 50 parts of tackifying resin, 50 to 200 parts of polyisobutene, 40 to 150 parts of filler, 1 to 8 parts of anti-aging agent, 0 to 20 parts of plasticizer and 0 to 8 parts of antioxidant. The modular plate-type viscoelastic damper is formed by curing at room temperature after the rigid connecting layer and the viscoelastic damping layer are attached, has the advantages of being simple in production process, environmentally friendly, free in splicing, easy to install and the like, has excellent energy dissipation capacity and restorability, and can be used in an infilled wall.

The invention relates to the technical field of waterproof coiled materials, and provides a macromolecule waterproof coiled material with a hook-and-loop fastener and a preparation method thereof.The macromolecule waterproof coiled material with the hook-and-loop fastener sequentially comprises the hook-and-loop fastener, a macromolecule sheet layer, a blocking layer, an upper gluing waterproof layer, a film-based macromolecule layer, a lower gluing waterproof layer and an anti-sticking layer from top to bottom; the upper adhesive waterproof layer and the lower adhesive waterproof layer are both modified self-adhesive asphalt sizing materials, and the modified self-adhesive asphalt sizing materials comprise asphalt, softening agents, styrene-butadiene-styrene block copolymers, butadiene styrene rubber, butyl rubber, tackifying resin, desulfurized rubber powder, filler and compatilizers. The filler is prepared from the following raw materials: carbon black, silicon dioxide, a silane coupling agent and 5-methylphenol-2-calcium sulfonate; the hook-and-loop fastener is a hook-and-loop fastener, the hook-and-loop fastener comprises a hook-and-loop fastener hook surface layer and a hook-and-loop fastener loop surface layer, and by means of the technical scheme, the problem that in the prior art, the high polymer waterproof roll is low in peel strength is solved.

The present disclosure provides an improved decorative article that may be used as a decorative flooring panel. The decorative article comprises a laminated structure having a core layer and a top layer. The core layer includes separate upper and lower sections with different compressibility resistances, such that the upper section of the core layer exhibits a lower compressibility resistance than the compressibility resistance of the lower section. In some embodiments, for example, the upper and lower sections of the core layer may be foamed layers having different porosities and densities. In some disclosed embodiments, the top layer above the core layer may comprise a coating, a wear layer, and a decor layer. According to some embodiments, a plurality of holes may extend through the top layer, or through only a portion of the top layer, to further improve acoustic performance of the decorative article.

The application discloses a multilayer fireproof material for a battery and a manufacturing method thereof, relates to the technical field of fireproof materials, and comprises a fireproof material base and a protective layer wrapped on the outer surface of the fireproof material base; the fireproof material base comprises a first glass fiber cloth layer, a ceramicized silicone rubber layer and a second glass fiber cloth layer from top to bottom; the multilayer fireproof material disclosed by the application has the advantages of remarkable fire-retardant and fireproof effects, good weather resistance and environmental protection performance, sufficient high-temperature flame impact resistance and good mechanical properties.

The utility model relates to the field of new energy, and discloses a battery bottom protection plate which comprises an impact release layer, a first fiber reinforced resin layer, a metal layer, an impact absorption layer and a second fiber reinforced resin layer, and the first fiber reinforced resin layer, the metal layer and the second fiber reinforced resin layer are all arranged between the impact release layer and the impact absorption layer. And the impact release layer, the first fiber reinforced resin layer, the metal layer, the second fiber reinforced resin layer and the impact absorption layer are laminated. The battery bottom guard plate has the beneficial effects that the battery bottom guard plate adopts the design concept of gradient energy absorption and has high impact resistance, and meanwhile, the multi-layer composite structure can be produced in different processes, so that the heat dissipation between layers is reduced, the interface bonding force is improved, the reliability of the bottom guard plate is improved, the protection function of the bottom guard plate is ensured, and the service life of the bottom guard plate is prolonged. And the battery pack can be well protected.

The present invention discloses a waterborne polyurethane and silica gel composite biomimetic material, its preparation method and application, belonging to the technical field of biomimetic skin. The biomimetic material includes a silica gel layer and a polyurethane layer. The material of the silica gel layer includes two-component silica gel, and the material of the polyurethane layer includes double-bond terminated waterborne polyurethane. The preparation method of the biomimetic material is as follows: Spray the double-bond terminated waterborne polyurethane into a mold, heat and dry it to obtain a polyurethane layer; Spray a platinum catalyst on the surface of the polyurethane layer, then mix the A component and B component of the two-component silica gel evenly and pour them into the mold, oscillate and level them, and cure and form to obtain the waterborne polyurethane and silica gel composite biomimetic material; The biomimetic material has the characteristics of high peel strength, good environmental performance, good folding resistance, high wear resistance, good heat resistance, etc., and especially has a baby-like skin-friendly touch, and has broad application prospects in artificial skin, soft robots, wearable devices, prosthetic epidermis, etc.

A cornhole board device includes a pair of cornhole boards which each has an aperture extending through a respective cornhole board to facilitate a cornhole bag to pass through the aperture when the cornhole bag is tossed onto the respective cornhole board. A pair of sets of sound insulating layers is each applied to a respective one of the plurality of cornhole boards. Each of the sets of sound insulating layers is comprised of a resiliently compressible material to reduce the intensity of sound produced by a cornhole bag is tossed onto the respective cornhole board. A pair of rigid panels is each positioned on top of a respective one of the pair of sets of sound insulating layers to absorb impact energy of the cornhole bags when the pair of cornhole bags is tossed onto the cornhole boards.

The invention relates to the technical field of rubber materials, and provides a flame-retardant rubber hose and a preparation method thereof. The flame-retardant rubber hose comprises an inner rubber layer, a reinforcing layer and an outer rubber layer, and raw materials of the inner rubber layer and the outer rubber layer respectively and independently comprise the following components in parts by weight: 10-15 parts of MQ silicone rubber, 85-90 parts of nitrile rubber, 3-7 parts of 3-carboxyl-4-hydroxy-acetoacetanilide modified graphene, 35-45 parts of filler, 1-3 parts of an anti-aging agent, 5-10 parts of a plasticizer, 2-5 parts of an activating agent, 1-2 parts of a vulcanizing agent and 0.5-1.5 parts of an accelerant. According to the technical scheme, the problem that the rubber hose in the prior art is insufficient in mechanical property and flame retardant property is solved.

A substrate-conveying support tape includes: a support film; a primer layer provided on the support film; and a temporary fixing material layer provided on the primer layer, in which the support film is a polyimide film, the temporary fixing material layer contains a thermoplastic resin, and the primer layer contains at least one selected from the group consisting of a silane coupling agent having an epoxy group or a ureido group, an epoxy resin, a polyurethane rubber, and an acrylic rubber having an acid value of 5 mgKOH / g or more.

The invention discloses a sealing gasket for an energy storage hydrogen production electrolytic cell and a preparation method of the sealing gasket, and belongs to the technical field of sealing gasket production. Comprising the following steps: carrying out surface treatment on glass fibers, and carrying out hot-pressing mixing with a polyimide block copolymer to obtain a supporting layer; glass fibers are subjected to surface treatment and then hot-pressed and mixed with the polyimide block copolymer to obtain a supporting layer; the polytetrafluoroethylene, the triallyl isocyanurate and the nano silicon dioxide are mixed and stirred, and the sealing layer is obtained through injection molding after radiation crosslinking; the epoxy resin matrix, the modified fluororubber and the anti-aging agent are subjected to banburying and vulcanization to obtain the protective layer; and the supporting layer, the sealing layer and the protective layer are sequentially stacked, hot-pressed and compounded to obtain the sealing gasket. The sealing gasket for the energy storage and hydrogen production electrolytic cell is improved in structural stability and has good creep resistance and chemical resistance.

The invention discloses a double-layer artificial debonding heat insulation structure of a solid engine and a forming method, and relates to the field of solid rocket engines. A heat insulation layer, a bottom layer coating layer and a cover layer coating layer are adopted on the inner surface of a combustion chamber shell to form a double-layer manual debonding heat insulation structure, the bottom layer coating layer and the heat insulation layer form an open type manual debonding structure, and the cover layer coating layer and the bottom layer coating layer form a closed type manual debonding structure. The heat insulation layer, the bottom layer coating layer and the cover layer coating layer are sequentially paved with green sheets and are formed through one-time vulcanization. The enough bonding area of the charged powder can be guaranteed, and the stress of the grain can be fully released.

The invention discloses a phase change capsule-oriented boron nitride array composite film with a high enthalpy value and high heat conductivity as well as a preparation method and application of the phase change capsule-oriented boron nitride array composite film. The phase change capsule-oriented boron nitride array composite film with the high enthalpy value and the high heat conductivity comprises a boron nitride film and a phase change nanocapsule reinforced silicon rubber film which are sequentially stacked; the phase-change nanocapsule reinforced silicone rubber film comprises the following components in percentage by mass: 10%-84% of phase-change nanocapsules and 16%-90% of silicone rubber. The phase change capsule-oriented boron nitride array composite film with high enthalpy value and high thermal conductivity prepared by the invention has high heat storage and high thermal conductivity, is applied to an electronic device, ensures that the electronic device has excellent heat dissipation performance, solves the problem that the electronic device cannot quickly dissipate heat under an extreme working condition in the prior art, and improves the heat dissipation efficiency of the electronic device. The invention is suitable for the technical field of heat-storage heat-transfer materials.

A release film comprising: a laminated film in which a first coating layer B1 containing a polyester resin containing an inorganic pigment, a void-containing layer A containing voids therein, and a second coating layer B2 containing a polyester resin containing an inorganic pigment are laminated in this order; and a release layer C on at least one side of the laminated film, wherein the void-containing layer A is made of a composition containing a polyester resin, a polyolefin resin, and a silicone resin, and has an apparent density of 0.80 g / cm3 or more and 1.20 g / cm3 or less.

The invention belongs to the technical field of heat insulation, and particularly relates to a film material for a vacuum heat insulation panel and the vacuum heat insulation panel, the film material for the vacuum heat insulation panel comprises a modified heat sealing layer, a modified blocking layer and a modified protection layer which are arranged in a stacked mode, and the modified heat sealing layer comprises a heat sealing base material and an elastomer; the modified barrier layer comprises a barrier base material and an elastomer, and the modified protective layer comprises a protective base material and an elastomer. The film material for the vacuum insulation panel provided by the invention has high toughness while keeping high barrier property, and the problem of poor bending resistance of the film material for the vacuum insulation panel is solved.

The present invention discloses a method for preparing a graphene thermally conductive gasket, the preparation process comprising the following steps: forming a plurality of through-holes penetrating the upper and lower surfaces of a multilayer graphene film; immersing the punched multilayer graphene film in a first adhesive and then removing and drying it; rolling the dried multilayer graphene film to reduce its thickness, increase the bonding strength of the internal layers of the film, and improve the density of the film; using a second adhesive to alternately stack and bond the multilayer graphene film and foam to form a whole, pressing, and curing the whole; cutting the cured multilayer graphene film and foam into a plurality of sheets along the height of the stack, with a bevel angle of 50 to 85 degrees; and coating the upper and lower surfaces of the cut sheets with a layer of organic silicon thermally conductive material to obtain a graphene thermally conductive gasket. The present invention also discloses a graphene thermally conductive gasket, which is formed by alternately stacking and bonding a plurality of multilayer graphene films, a polymer layer, and a foam layer arranged in sequence.

An agitator for a vacuum cleaner includes an agitator body and a resiliently deformable flap. The resiliently deformable flap includes a front face, a rear face, and one or more protrusions extending outwardly from the front face. An agitator for a vacuum cleaner includes an agitator body and a bristle strip and / or a plurality of tufts arranged in one or more rows along the agitator body. The bristle strip and / or a plurality of tufts includes a first bristle group including a plurality of nylon bristles and at least a second bristle group including a plurality of para-aramid bristles.

The invention discloses a ceramic anti-interference silicone rubber tape, a manufacturing method and a cable, the ceramic anti-interference silicone rubber tape comprises a base layer, a ceramic silicone rubber auxiliary layer, a flexible buffer layer, a ceramic silicone rubber main layer and a thermal insulation layer, the base layer is formed by weaving mixed braided wires, the mixed braided wires comprise metal wires and glass fiber filaments, and the flexible buffer layer is arranged between the metal wires and the glass fiber filaments. The glass fiber filaments are wound on the metal wires to form mixed braided wires, and a plurality of meshes are formed in the base layer; ceramic silicone rubber auxiliary layers are arranged on the two faces of the ceramic silicone rubber auxiliary layer base layer, the ceramic silicone rubber auxiliary layers are in composite butt joint through meshes, and the base layer is wrapped by the two ceramic silicone rubber auxiliary layers. The flexible buffer layer is arranged on the ceramic silicone rubber auxiliary layer and is used for reducing the impact of external force on the ceramic silicone rubber auxiliary layer; the ceramic silicone rubber main layers are arranged on the flexible buffer layers, and the ceramic silicone rubber main layers are arranged on the two flexible buffer layers; and one of the two ceramic silicone rubber main layers is provided with a thermal insulation layer.

The invention relates to a high-adhesiveness composite material for a rubber dam and a preparation method of the high-adhesiveness composite material, and relates to the technical field of rubber dams, the high-adhesiveness composite material for the rubber dam comprises an outer weather-proof protective layer, a middle reinforcing layer and an inner self-repairing layer, the weather-resistant protective layer is prepared from 90 to 110 parts of highly saturated nitrile rubber, 23 to 28 parts of carbon black N550, 3 to 8 parts of nano TiO2, 1 to 3 parts of antioxidant 1010 and 2 to 3 parts of dicumyl peroxide, and the reinforcing layer is prepared from 60 to 80 parts of ethylene propylene diene monomer, 25 to 35 parts of styrene butadiene rubber, 13 to 15 parts of nylon fiber, 10 to 12 parts of aramid fiber, 12 to 15 parts of carbon black, 0.5 to 1.5 parts of graphene, 1 to 2 parts of sulfur and 0.5 to 1.5 parts of accelerant CZ. The self-repairing layer comprises 90 to 100 parts of silicone rubber, 5 to 10 parts of nano SiO2, 5 to 8 parts of a self-repairing agent and 0.1 to 0.3 part of a dispersing agent. The high-adhesiveness composite material for the rubber dam disclosed by the invention has relatively good adhesiveness, and can timely and automatically repair micro cracks and prevent further expansion of the cracks.

The invention relates to the technical field of rubber hoses, in particular to a pressure-resistant and oil-resistant rubber hose and a preparation method thereof.The preparation method comprises the following steps that S1, nitrile rubber, chloroprene rubber, chlorosulfonated polyethylene, chlorinated polyethylene, sulfur, an accelerant and an anti-aging agent are added into an internal mixer to be evenly mixed, the temperature is controlled for mixing, sheet discharging is conducted, a pipe blank is extruded through an extruder, and the pipe blank is obtained; a combined rubber layer is obtained; s2, the combined rubber layer, the woven copper-plated steel wire layer, the reinforcing layer, the spiral zinc-plated spring steel wire layer, the reinforcing layer, the woven copper-plated steel wire layer and the combined rubber layer are subjected to interlayer bonding in sequence, and the assembled hose is obtained; and S3, the assembled hose is put into a vulcanizing tank to be subjected to vulcanizing treatment. By adopting the seven-layer composite structure design, the rubber hose disclosed by the invention can be in contact with a strong corrosive medium for a long time without internal corrosion, so that the service life of the hose is prolonged, and the safety of the hose in the use process is also improved.

The invention discloses a multifunctional foam pad made of a regenerated composite material and a production process of the multifunctional foam pad, and belongs to the technical field of production of regenerated composite materials. The surface of the recycled PET non-woven fabric printing layer is provided with 50 + / -5 [mu] m micropores, the cat palm bionic gradient foaming layer (the density is 0.15-0.35 g / cm < 3 > gradient distribution) is formed by blending and foaming PVC recycled materials, PET bottle chips and waste rubber powder, and the glass fiber net reinforced rubber matrix layer and the triangular pyramid micro-sucker bottom layer are arranged from top to bottom. The preparation process comprises the steps of waste material near-infrared sorting and pretreatment, multi-stage dynamic blending granulation, supercritical CO2 gradient foaming, bionic calendaring forming and laser positioning hot-pressing compounding, high-valued utilization of multi-element waste materials is achieved through combination of bionic structure design and a green process, the product has sound insulation, buffering and anti-skid performance, the tear resistance is improved by 150%, and the service life of the product is prolonged. The problems that a traditional foaming cushion depends on raw plastic, is single in function and causes manufacturing pollution are solved, and resource circulation and function strengthening unification are achieved.

The invention discloses a composite pipe and a preparation method thereof, and relates to the technical field of water supply pipes. The composite pipe sequentially comprises an outer layer, a middle layer and an inner layer from outside to inside, raw materials of the outer layer comprise polypropylene random copolymer and composite rubber, and the mass ratio of the polypropylene random copolymer to the composite rubber is (3-9): 1; the composite rubber comprises ethylene propylene rubber, isoprene rubber and nano silicon dioxide, the mass ratio of the ethylene propylene rubber to the isoprene rubber in the composite rubber is (2.3-4): 1, and the mass ratio of the nano silicon dioxide to the composite rubber is (2-3): 10; the raw material of the middle layer is a propenyl block copolymer; the raw materials of the inner layer comprise heat-resistant polyethylene and glass fibers. The composite pipe provided by the invention has excellent mechanical strength and impact resistance.

The invention discloses an umbrella skirt used for a lightning arrester and an insulator and having a passive deicing function and a preparation method thereof.The umbrella skirt used for the lightning arrester and the insulator and having the passive deicing function comprises solid mixed silicone rubber and silicone rubber wrapping the outer surface of the solid mixed silicone rubber and having the passive deicing function; the silicone rubber with the passive deicing function comprises the following components: a silicone rubber-based material, a soft substance with low shear modulus and an inorganic filler, the adhesive force between the silicone rubber and ice is low (less than 100 kPa), the interface of the silicone rubber and the ice is very easy to separate due to stress concentration, and the passive deicing effect is achieved; the deicing function of the silicone rubber has a volume characteristic, cannot be lost due to damage to the surface of a material, has the service life equal to the service life of the material, and has a wide application prospect in the field of icing prevention and control.

The invention discloses a production method of a vehicle gauge grade MLCC release base film. The base film comprises an outer layer, a middle layer and an inner layer. The outer layer is prepared from PET, silane coupling agent modified nano zinc oxide, organic silicon modified acrylate and an antioxidant; the middle layer is prepared from PET (Polyethylene Terephthalate), ethylene propylene diene monomer, nano silicon dioxide, organic montmorillonite and PP-g-MAH (Maleic Anhydride); the inner layer is composed of PET, a high-density polyethylene / butadiene styrene rubber composite modifier, graphene oxide and multi-walled carbon nanotubes. The prepared vehicle gauge grade MLCC release base film has excellent mechanical properties and thermal stability.

A web harness belt includes multiple layers. A first elastomer layer portion and a second elastomer portion each connected to a ballistic material layer of the multiple layers. The first elastomer layer portion and the second elastomer layer portion each including multiple belt configuration slots.