74 results about "Polyethylene membrane" patented technology

The invention discloses a fireproof flame-retardant battery diaphragm, a preparation method thereof and a fireproof flame-retardant battery, and relates to the technical field of battery diaphragms. When the fireproof flame-retardant battery diaphragm is prepared, boric acid diglyceride and chlorinated trimellitic anhydride mixed liquor react to prepare a flame-retardant monomer; the preparation method comprises the following steps: polymerizing 4, 4 '-diaminodiphenyl ether and a flame-retardant monomer, and carrying out electrostatic spraying to prepare polyamide acid microspheres; dehydrating and drying the polyamide acid microspheres to obtain polyimide microspheres; performing etching-acidification on the polyimide microspheres to prepare carboxylated polyimide microspheres; allyl phosphoric acid and acrylic acid are copolymerized and grafted on the surface of a polyethylene film to prepare a modified polyethylene film; and coating the surface of the modified polyethylene film with the carboxylated polyimide microspheres to prepare the fireproof flame-retardant battery diaphragm. The prepared fireproof flame-retardant battery diaphragm has excellent flame retardance, wetting performance and thermal stability.

A freight vehicle has a cargo space that is convertible for handling piece goods and is also suitable for hauling liquid bulk material. A conventional cargo space is equipped with a drop-down frame and flexible liquid enclosure that is stowed in the ceiling of the trailer while hauling a full load of palletized or piece goods materials that can be lowered to the floor for transporting liquid bulk loads. Generally, the long tubular (round and or oval in shape from an end view) can be fitted with a polyethylene film disposable liner. The disposable poly liner will ensure the liquid freight is free from contamination. This concept not only eliminates the need for a liquid tanker to be washed out between each load but also allows for the hauling of piece goods freight when the frame system is raised back to the ceiling.

The invention relates to the technical field of waterproof coiled materials, in particular to a self-adhesive waterproof coiled material and a preparation method thereof. The waterproof roll comprises a polyethylene film, a main body layer, a self-adhesive layer and an isolating film from top to bottom, wherein the main body layer is obtained by extruding, granulating and melting matrix asphalt, butyl rubber, modified vermiculite, a borate compound, an antioxidant and sulfur, dip-coating gridding cloth on two sides, and calendaring and shaping; and the self-adhesive layer is obtained by melting and curing SEBS, hydrogenated petroleum resin, polyisobutene, modified vermiculite, a borate compound, a plasticizer and an antioxidant. Compared with the prior art, the prepared self-adhesive waterproof coiled material has better resistance to damp-heat aging and salt erosion, and is especially suitable for coastal, underground, high-humidity and other severe environments.

An assembly includes an acoustic device. The acoustic device can include a polyethylene membrane. The polyethylene membrane can have first direction and a second direction, the second direction being orthogonal to the first direction. The polyethylene membrane can have a surface area per volume of at least 39×106 / m. The polyethylene membrane can have a geometric mean tensile modulus of 250 to 750 MPa. The polyethylene membrane can have a maximum tensile modulus in the first direction of 440 to 915 MPa. The polyethylene membrane can have a maximum tensile modulus in the second direction of 275 to 515 MPa. The polyethylene membrane can be an expanded polyethylene membrane.

The invention relates to the technical field of polyethylene films, and particularly discloses a low-precipitation polyethylene film and a preparation method thereof. The low-precipitation polyethylene film is prepared from the following raw materials: polyethylene, silicon carbide nanowires, nano talcum powder, an antioxidant and glyceryl stearate. The alkane precipitation amount of the obtained polyethylene film is 5 ppm or below, and precipitation of alkane molecules of the polyethylene film is obviously reduced.

This invention discloses a fire-retardant battery separator, its preparation method, and a fire-retardant battery, relating to the field of battery separator technology. In preparing the fire-retardant battery separator, this invention involves reacting a mixture of diglyceride borate and trimellitic anhydride chloride to obtain a flame-retardant monomer; polymerizing 4,4'-diaminodiphenyl ether and the flame-retardant monomer, followed by electrostatic spraying to obtain polyamic acid microspheres; dehydrating and drying the polyamic acid microspheres to obtain polyimide microspheres; etching and acidifying the polyimide microspheres to obtain carboxylated polyimide microspheres; grafting propylene-based phosphoric acid and acrylic acid copolymers onto the surface of a polyethylene film to obtain a modified polyethylene film; and coating the carboxylated polyimide microspheres onto the surface of the modified polyethylene film to obtain the fire-retardant battery separator. The fire-retardant battery separator prepared by this invention exhibits excellent flame retardancy, wetting, and thermal stability.

The present invention relates to a multilayer polyethylene film comprising in order at least an outer layer, a core layer and a sealing layer, wherein the sealing layer comprises: i) at least 30.0 wt% of a first multimodal linear low density polyethylene terpolymer relative to the total weight of the sealing layer; and ii) at least 10.0 wt% of a first plastomeric body having a density of 910 kg / m3or less (ISO 1183) relative to the total weight of the sealing layer; wherein the core layer comprises: a) at least 8.0 wt% of a second plastomeric body having a density of 910 kg / m3or less (ISO 1183) relative to the total weight of the core layer, or b) at least 8.0 wt% of a multimodal linear low density polyethylene (LLDPE) binary copolymer relative to the total weight of the sealing layer; and c) a second multimodal polyethylene terpolymer. 3 The present invention relates to a multilayer polyethylene film comprising in order at least an outer layer, a core layer and a sealing layer, wherein the sealing layer comprises: i) at least 30.0 wt% of a first multimodal linear low density polyethylene terpolymer relative to the total weight of the sealing layer; and ii) at least 10.0 wt% of a first plastomeric body having a density of 910 kg / m3or less (ISO 1183) relative to the total weight of the sealing layer; wherein the core layer comprises: a) at least 8.0 wt% of a second plastomeric body having a density of 910 kg / m3or less (ISO 1183) relative to the total weight of the core layer, or b) at least 8.0 wt% of a multimodal linear low density polyethylene (LLDPE) binary copolymer relative to the total weight of the sealing layer; and c) a second multimodal polyethylene terpolymer. 3 ​

The invention relates to a nickel-based alloy welding material for a garbage incinerator and a production process of the nickel-based alloy welding material, and belongs to the technical field of welding materials, the nickel-based alloy welding material comprises a central stranded welding wire, the periphery of the central stranded welding wire is sleeved with a fastening net, the periphery of the fastening net is wrapped with a polyethylene film, the periphery of the polyethylene film is provided with outer-layer stranded welding wires, and the periphery of the outer-layer stranded welding wires is provided with inner-layer stranded welding wires. A combustion improver is arranged in a hole formed between the polyethylene film and the central stranded welding wire, after the first peripheral wire is stranded on the central welding wire, the first peripheral wire is pressed, so that the first peripheral wire enables the peripheral wall of the central welding wire to be sunken to form a groove, and therefore, through the cooperation between the first peripheral wire and the groove, the combustion improver is improved, and the welding quality is improved. The first peripheral wire and the central welding wire are positioned through the clamping hoop, the second peripheral wire is positioned through the abutting of the first peripheral wire and the second peripheral wire, and the radial positioning of the peripheral welding wires is realized through the clamping hoop, so that the arrangement of a central welding wire guide strip is avoided, and the production difficulty and the production cost are reduced.

The application discloses a polyethylene film material suitable for high-speed gravure printing and a preparation method. The polyethylene film material is prepared from polyethylene with a density of 0.92-0.97 g / cm3 as raw material by adopting a 'five-layer co-extrusion blow molding+online longitudinal stretching' process, through step density layer design, the thickness ratio between layers is 1:1:2:1:1, and the polyethylene film material with a thickness of 20-25 mu is prepared through online twelve-roll longitudinal stretching. The polyethylene film material prepared by the application has high tensile strength (longitudinal), good elongation at break, and a 1% quadratic modulus (longitudinal) of 1356 MPa, and has good material rigidity. The polyethylene film material can meet the printing speed of 300-500 m / min in an ester-soluble ink system of a high-speed gravure printing machine, and the overlay precision is less than or equal to 0.2 mm. The polyethylene film material can provide technical guidance for the realization of polyethylene single material packaging.

The utility model belongs to the technical field of building structures, and particularly provides a clean board with a hot melt film, which comprises a rock wool core board, panels are respectively attached to two side surfaces of the rock wool core board perpendicular to the thickness direction of the rock wool core board, the thickness of each panel is 0.4 mm-0. 6mm, keels are respectively arranged on four side surfaces of the rock wool core board parallel to the thickness direction of the rock wool core board, and the hot melt film is arranged on the keels. The thickness of the keel ranges from 0.55 mm to 0.65 mm. The surface, away from the rock wool core plate, of the face plate is coated with a polyethylene coating or a polyvinylidene fluoride coating with the thickness ranging from 18 micrometers to 22 micrometers, a hot melt adhesive film with the thickness ranging from 28 micrometers to 32 micrometers is arranged between the face plate and the rock wool core plate, and the hot melt adhesive film is a modified polyethylene film or an EVA adhesive film.

The invention relates to a functional high-strength polyethylene film material continuous forming method which comprises the following steps: S1, mixing a photosensitizer and a grafting monomer to prepare a turbid liquid, spraying the turbid liquid into polyethylene, and stirring and dispersing to obtain a composite material; s2, adding the composite material in the S1 into a screw extruder for extrusion to obtain a thick film material, and then performing continuous isobaric pressing to obtain a thin film material; and S3, carrying out multi-time hot drafting on the thin film material in the S2 to obtain a film material product, carrying out ultraviolet radiation in an inert atmosphere, and rolling to obtain the functionalized high-strength polyethylene film material. Compared with the prior art, continuous forming of the high-strength UHMWPE film material can be achieved at low temperature, the preparation process does not need a solvent and is environmentally friendly, the surface of a product has polarity, and the interface bonding force is high when the composite material product is manufactured.

The present invention aims to provide a polyethylene film in which heat-induced curl is more suppressed. The present invention provides a biaxially oriented polyethylene film comprising polyethylene resin, wherein (a) a heat shrinkage ratio (MDHS / TDHS) of heat shrinkage in a longitudinal direction (MDHS) measured at 100°C according to JIS Z 1712 (2009) to heat shrinkage in a width direction (TDHS) measured at 100°C according to JIS Z 1712 (2009) is 0.35 or more and 2.50 or less, and / or (b) a planar orientation coefficient ΔP is 0.006 or more and 0.035 or less as calculated from refractive indices in a width direction (Ny), a longitudinal direction (Nx), and a thickness direction (Nz) measured according to JIS K 7142 (2014), using the following formula: planar orientation coefficient ΔP = (Nx + Ny) / 2 - Nz.

The invention provides a chemical-solvent-resistant heat-sealing adhesive tape for chemical protective clothing and a preparation method of the heat-sealing adhesive tape, and belongs to the technical field of chemical protective articles. The adhesive tape comprises a surface layer and an adhesive layer coated on the surface layer, the surface layer is a polyethylene film; the bonding layer comprises the following components in parts by weight: 0-30 parts of linear low density polyethylene; 70 to 100 parts of a polyolefin elastomer; the melt index of the polyolefin elastomer is 10-30 g / 10 min. A composite structure is formed by the bonding layer and the surface layer, so that the technical advantages of proper adhesive pressing temperature, high adhesion and excellent chemical solvent resistance are realized.

The utility model discloses a high-barrier sewing forming packaging bag which comprises an upper film body and a lower film body, and the end edges of the upper film body and the lower film body are heat-sealed and encircled to form a bag body; the upper film body comprises an upper outer layer, an upper barrier layer and an upper functional layer which are sequentially arranged from the outside of the bag body to the inside of the bag body; the lower die body comprises a lower outer layer, a lower blocking layer, a lower inner layer and a lower functional layer which are sequentially arranged from the outside of the bag body to the inside of the bag body; and the upper functional layer and the lower functional layer are polyethylene films containing drying agents. The drying agent particles are mixed into the PE to form the upper functional layer and the lower functional layer, so that the validity period of the absorption instrument can be prolonged; the barrier layer is made of cold forming aluminum, so that a plane bag can be replaced by three-dimensional packaging, and high-barrier water and oxygen resistance can be realized; and the outer layer of the bag body adopts the nylon NY design, so that the puncture-resistant and wear-resistant effects of the packaging bag are improved.

Disclosed herein is a bag having an inside and an outside as well as first seal and a second seal. The first seal of the bag has a higher heat seal strength than the second seal of the bag such that the second seal can be more easily separated than the first seal. The bag can be used for flexible packaging and can be formed from polyethylene films having specific heat seal layers and polymers.

This invention discloses a method for preparing a thermally stable multilayer battery separator, relating to the field of battery materials technology. The battery separator of this invention comprises a modified polyethylene film and a coating applied to at least one surface of the modified polyethylene film. The modified polyethylene film is obtained by mixing polyethylene, poly-2,6-dimethyl-1,4-phenyl ether, and maleic anhydride-grafted polyethylene in a mass ratio of 5-7:2-3:1-2, extruding the mixture into a film, and then subjecting it to corona treatment. The coating is obtained by mixing modified nano-titanium dioxide containing ester groups, a solution of 3-(3-(aminomethyl)phenyl)-2,2-difluoropropionitrile, and ethanol in a mass ratio of 1-3:5-8:1-3, adding a small amount of catalyst to obtain a coating solution, and then coating and drying the mixture, significantly improving the thermal stability of the battery separator.

The invention discloses intelligent polyethylene film production equipment, and relates to the technical field of film production machinery, the intelligent polyethylene film production equipment comprises a machine body, frame bodies and a film blowing device, the frame bodies and the film blowing device are arranged on the machine body, a frame cavity is arranged between the frame bodies, and film bubbles are led out from the outlet end of the film blowing device; a guide device is fixedly arranged on the outer side of the frame body; the guide device comprises a lifting device, an expansion piece, a clamping jaw and a clamping plate; the clamping jaw is provided with two output ends which are relatively close to each other and far away from each other, and clamping plates are respectively fixed on the outer sides of the clamping jaw; the device has the advantages that the film bubble end is arranged between the two sets of clamping plates and clamped, the film bubble end is pulled to move upwards, in this way, it can be guaranteed that the film bubble is good in shape effect and high in convenience, then a user can independently move upwards, after the film bubble end moves upwards to a proper position, operation stop is conducted through another button, and the film bubble can be conveniently taken out. And meanwhile, the clamping jaw loosens clamping, and the telescopic device drives the clamping jaw and the clamping plate to retract, so that follow-up conveying of the film bubbles cannot be blocked, and the effect of greatly simplifying the operation process is achieved.

The present invention relates to a multilayer polyethylene film for soil solarisation comprising two linear low density polyethylenes, a soil solarisation system comprising the multilayer polyethylene film and the use of the multilayer polyethylene film for soil solarisation.

The utility model discloses a polyethylene film raw material uniform stirring device which comprises a storage cylinder, the bottom of the storage cylinder is in a circular truncated cone shape, a material mixing assembly is arranged in the storage cylinder, the material mixing assembly comprises a material pushing mechanism, a material scattering mechanism, a gas injection mechanism and an exhaust mechanism, the material pushing mechanism is arranged at the axis position of the storage cylinder, and the material scattering mechanism is arranged at the axis position of the storage cylinder. The conveying device is used for conveying raw materials at the bottom in the storage barrel to the top in the storage barrel. According to the improved polyethylene film raw material uniform stirring device, raw materials at the inner bottom of the storage barrel are continuously conveyed to the inner top of the storage barrel to be scattered, stirring and mixing operation of the raw materials is completed, no dead angle exists in stirring and mixing of the raw materials, the stirring and mixing effect of the raw materials is improved, and in the raw material mixing and stirring process, the stirring efficiency is improved. A continuously upward flowing gas can be formed among the raw materials, so that small-particle impurities such as water vapor and dust in the raw materials are removed, and the stirring and mixing effects of the raw materials are further improved.

The application discloses a processing technology of a membrane composite filter material and relates to the field of filter materials, which comprises a polyurethane-based membrane, a polypropylene membrane fixed at the bottom end of the polyurethane-based membrane, a polyethylene membrane fixed at the top end of the polyurethane-based membrane and the bottom end of the polypropylene membrane, a plurality of through holes penetrating through the polyethylene membrane formed in the polyethylene membrane, antibacterial fabric fixed on the side of the polyethylene membrane away from the polyurethane-based membrane and the polypropylene membrane, and tensile fiber cloth fixed on the side of the antibacterial fabric away from the polyethylene membrane. The antibacterial fabric can inhibit bacteria, so that the impurities and bacteria filtered by the polyurethane-based membrane and the polypropylene membrane cannot continue to breed and corrode the filter material.

The utility model relates to a novel multi-layer composite fabric which is suitable for protective clothing in high-risk industries such as fire protection, chemical engineering and the like. The fabric comprises a fireproof layer on the outermost layer, a heat insulation layer on the second layer, a chemical-proof layer on the third layer, an inner layer and an antistatic layer. The fireproof layer is made of aramid fibers or carbon fibers, the heat insulation layer is made of aerogel, a silica gel coating or a glass fiber material, the chemical defense layer is made of a polyurethane coating, a fluorinated polymer coating or a polyethylene film, the inner layer is made of polyester or cotton fibers, and the anti-static layers are connected through conductive fibers. All the layers are connected through hot pressing, adhesives and sewing processes, and stability and comfort are ensured. The thickness of the fireproof layer is 0.5-2 mm, the thickness of the heat insulation layer is 0.3-1.5 mm, the thickness of the chemical prevention layer is 0.2-1 mm, the thickness of the inner layer is 0.1-0.5 mm, and the thickness of the antistatic layer is 0.05-0.3 mm. The fabric integrates fireproof, heat-proof, chemical-proof and anti-static functions, provides comprehensive protection, and is suitable for protective clothing in extreme environments.

The utility model relates to the field of traditional Chinese medicine teabag, in particular to a traditional Chinese medicine teabag device capable of adjusting drug effect release rate, which comprises a teabag body, the teabag body comprises a laser drilling nylon film, a poly (lactic-co-glycolic acid) (PLGA) film and a sintered polyethylene film, the laser drilling nylon film, the PLGA film and the sintered polyethylene film are subjected to edge fusion through a hot-pressing compounding process to form an upper-layer quick release cavity positioned between the laser drilling nylon film and the PLGA film and a lower-layer slow release cavity positioned between the laser drilling nylon film and the PLGA film and the sintered polyethylene film. Compared with a common traditional Chinese medicine tea bag at present, the problem of medicine residue leakage caused by high-temperature breakage of the tea bag body can be effectively solved. Meanwhile, through staged release of the medicine components, the medicine effect utilization rate can be well increased.

This invention relates to the field of polymer molding materials. A functional color-printed composite packaging film of ultra-high molecular weight polyethylene is disclosed, which is formed by curing a polyethylene film substrate, p-hydroxybenzoic acid, polyethylene glycol diacrylate, laccase, and acrylate ink monomers. The film is formed by covalently coupling quinone radicals generated from p-hydroxybenzoic acid and polyethylene glycol diacrylate under laccase catalysis to the substrate surface, forming a polyethylene glycol grafted interlayer. Subsequently, ultraviolet light-initiated polymerization is performed on the surface of the interlayer to form a cross-linked and cured ink layer. This method utilizes the covalently bonded grafted interlayer to block the rearrangement of non-polar molecular chains of the substrate to the surface, maintaining surface polarity stability, and enabling the ink layer and substrate to possess the highest standard peel strength, with no blistering or peeling of the ink layer under boiling water conditions.

This invention provides a method for manufacturing an antibacterial polyethylene film. The method involves placing polyethylene masterbatch coated with antibacterial microparticles into a ball mill, and using an external induction coil for induction heating. The induced heat from the conductive antibacterial microparticles is transferred to the coated polyethylene masterbatch, causing it to melt into a liquid. While the ball mill is rotating, the antibacterial microparticles, the molten polyethylene liquid, and the inorganic surfactant are uniformly mixed. The ball milling process forces the antibacterial microparticles to overcome the viscosity of the polyethylene liquid, resulting in forced diffusion and refinement. This allows the antibacterial microparticles to be uniformly dispersed in the molten polyethylene liquid during the grinding process, forming nanoparticles. The film is then directly introduced into a film-forming device to create a membrane. This method effectively reduces and eliminates sparse and agglomerated areas of nanoparticles in the antibacterial polyethylene material, ensuring uniform dispersion of nanoparticles within the polyethylene material and guaranteeing the stability and quality of the antibacterial polyethylene material.

The invention discloses an air filtering membrane for a medical infusion apparatus and a preparation method of the air filtering membrane, and relates to the technical field of filtering materials. The prepared air filtering membrane for the medical infusion apparatus is prepared by compounding a polyvinyl alcohol condensed biphenyl dicarboxaldehyde fiber layer and a polyethylene porous membrane, and the cross-linked polyvinyl alcohol condensed biphenyl dicarboxaldehyde fiber layer is prepared by performing a reaction on biphenyl dicarboxaldehyde, sulfydryl Schiff base phosphate and polyvinyl alcohol, then performing a reaction with modified polyethyleneimine and performing wet spinning. After being compounded with the polyethylene porous membrane, the air filter membrane not only keeps good air permeability, but also has good chemical resistance and high-temperature dimensional stability, so that the stability of the air filter membrane is ensured; the polyethylene porous membrane is prepared by carrying out plasma treatment on a polyethylene membrane and then grafting polysiloxane tannic acid ester on the surface of the polyethylene membrane, and the polysiloxane tannic acid ester is prepared by reacting hydroxyl polysiloxane with a tannic acid ester polymer, so that the binding force with the cross-linked polyvinyl acetal dicarboxaldehyde fiber layer is improved, and the stability of the air filtering membrane is further ensured.

This invention discloses a plasma-modified polyethylene / polyamide composite membrane, its preparation method, and its applications, belonging to the field of organic solvent-resistant forward osmosis membrane technology. First, by controlling the plasma treatment time and power, and subjecting both sides of the base membrane to different degrees of plasma treatment, a modified polyethylene membrane with one side moderately hydrophilic and the other side superhydrophilic can be obtained. Then, an aromatic polyamide dense selective layer is formed on the surface of the modified polyethylene membrane through interfacial polymerization. The polyethylene-based organic solvent forward osmosis composite membrane prepared by this invention has advantages such as strong chemical stability, high organic solvent permeation, low reverse lithium chloride flux, and high rejection rate for antibiotics such as tetracycline. It can be used in fields such as thermosensitive drug concentration, dye removal, and organic solvent recovery.

Provided are a package for an absorbent article and an independent package for an absorbent article, which impart an impression of softness and high quality to the absorbent article. A package (40) for an absorbent article, the package (40) comprising: an individual package (30) provided with an absorbent article (1) and a package (31) for individually packaging the absorbent article (1); the absorbent article has an absorbent body (10) containing a highly absorbent polymer (11) and a surface sheet (2) provided on the skin side of the absorbent body, the article bag has a polyethylene film, a polyethylene terephthalate film or a polypropylene film as a base material (42), a first printed layer (71) containing metal particles is provided on the outer surface side of the base material, and a second printed layer (71) containing metal particles is provided on the outer surface side of the base material. A second printed layer that does not contain metal particles is provided on the outer side of the first printed layer in the thickness direction, and the average particle diameter of the metal particles is smaller than the average particle diameter of the highly absorbent polymer.

The application discloses a kind of high pressure polyethylene film tensile resistance detection device, it is related to high pressure polyethylene film detection technical field, including testing machine body, lifting clamp and sample switching mechanism;The sample switching mechanism includes turntable and lower clamp, the lower clamp is provided with multiple groups, and it is equidistantly distributed on the turntable, the lower clamp includes fixed clamp and movable clamp, the movable clamp is used to fixedly hold the top of sample film, the fixed clamp is used to fixedly hold the bottom of sample film, the fixed clamp is fixedly connected with turntable, and the movable clamp is detachably arranged on the turntable.The application simultaneously distributes multiple groups of lower clamp on the turntable to hold multiple sample films or clamp one sample film, and then directly detects, clamps the next sample film during detection, and after detecting each sample film, the next sample film is switched by the rotation of turntable to detect, effectively saves detection time, and improves detection efficiency.

This gas barrier film is provided with a multilayer polyethylene film and a gas barrier layer, the multilayer polyethylene film having at least a surface layer, an intermediate layer, and a rear surface layer in this order on the gas barrier layer side, and the probe drop temperature of the intermediate layer is higher than the probe drop temperature of the surface layer and is equal to or higher than the probe drop temperature of the rear surface layer. The surface layer is composed of a medium-density polyethylene resin or a high-density polyethylene resin having a density of 0.926 g / cm3 or more, and the gas barrier layer has at least one of an inorganic oxide layer and a gas barrier coating layer.

The utility model relates to the technical field of flame-retardant sponges, in particular to a low-density flame-retardant sponge, which comprises a sponge body, the sponge body comprises a central layer, base layers, waterproof layers, buffer layers and wear-resistant layers, the base layers are respectively adhered and fixed on two sides of the central layer through adhesive layers, the waterproof layers are adhered on the other sides of the base layers through adhesive layers, and the buffer layers are arranged on the waterproof layers. A buffer layer is adhered to the other side of the waterproof layer through an adhesive layer, and a wear-resistant layer is adhered to the other side of the buffer layer through an adhesive layer. According to the scheme, through the multi-layer composite structure design, the comprehensive performance is remarkably improved, the center layer is of a glass fiber warp and weft interweaving structure, the tensile strength is enhanced, the base layer is made of a low-density flame-retardant sponge material, the micropore structure design is combined, the light weight, heat insulation and sound absorption functions are achieved, and the waterproof layer and the wear-resistant layer are made of a polyethylene film and a polyvinyl chloride film respectively; water and friction damage are effectively isolated, the shock resistance is further optimized through corrugated protrusions of the buffer layer, all the layers are stably bonded through epoxy resin glue, and it is ensured that the structure is firm.