1043 results about "Tear resistance" patented technology

The invention relates to the technical field of high-barrier composite packaging films, and discloses a high-barrier composite packaging film with an antibacterial function, which sequentially comprises a base layer, a nano composite barrier layer, an antibacterial functional layer and an outer protective layer from bottom to top, and the layers are tightly attached through a coated starch-based adhesive. According to the high-barrier composite packaging film with the antibacterial function, the cellulose nanowhiskers have the characteristics of high strength and high modulus and are mixed with the bio-based polylactic acid, so that the tensile strength and tear resistance of the bio-based polylactic acid can be remarkably improved, and the structural stability of the packaging film in the using process is guaranteed; nano titanium dioxide and nano cellulose aerogel are arranged in the nano composite barrier layer, so that the barrier property of the packaging film on oxygen and ultraviolet rays can be enhanced, and the packaging film also has a certain antibacterial effect; in addition, the nanocellulose aerogel has a loose porous structure, so that gas molecules can be effectively prevented from passing through, and the barrier property is further improved.

The utility model relates to the field of plastic film detection, and discloses a plastic film tear resistance detection device which comprises a working cabinet, the top end in the working cabinet is fixedly connected with a fixing plate, the left side and the right side of the bottom of the fixing plate are fixedly connected with first screw rods, the bottoms of the two first screw rods are fixedly connected with second connecting rods, and the second connecting rods are fixedly connected with the working cabinet. The bottoms of the two second connecting rods are fixedly connected with second screws, and the bottoms of the two second screws are fixedly connected with first bevel gears. According to the utility model, by simultaneously driving the two second motors, the first clamping plate and the second clamping plate clamp the film, the contact area between the film and the first clamping plate and the contact area between the film and the second clamping plate are increased, the film is prevented from falling off, the pointing mark points to the zero scale of the scale mark, and the film is subjected to a vertical tearing test through the driving assembly; and when the driving assembly stops driving, the beacon points to the maximum tensile force which can be borne by the thin film.

The invention discloses a forming device and a forming method of a high-temperature-resistant low-temperature-resistant high-toughness cable. According to the invention, based on a double-substrate synergistic system of hydrogenated nitrile rubber and polyether type thermoplastic polyurethane, and in combination with a dynamic vulcanization crosslinking technology, the cable keeps excellent flexibility and tear resistance in a wide temperature range of-60 DEG C to 125 DEG C. A three-dimensional reinforced network of nano silicon dioxide and carbon nanotubes is directionally dispersed in a matrix, and mechanical support of aramid short fibers is matched, so that the cable is endowed with bending fatigue resistance, the durability of the drag chain cable in a high-frequency torsion scene of an oil platform exceeds 30 million cycles is realized, and the service life of the drag chain cable is prolonged. The problem of breakage caused by low-temperature embrittlement and high-temperature softening of a traditional cable is fundamentally solved, the synergistic effect of the perfluoropolyether surface modifier and the composite anti-aging system enables the cable to form a stable protective layer in strong acid, strong alkali, salt mist and oil stain environments, and chemical corrosion and ultraviolet irradiation are effectively resisted.

The invention belongs to the technical field of new materials of conveying belts, and discloses a graphene modified whole-core flame-retardant conveying belt for a coal mine and a preparation method of the graphene modified whole-core flame-retardant conveying belt. Comprising mixed rubber and a polyester fabric located in mixed liquid, and the mixed rubber is prepared from, by weight, 100-120 parts of chloroprene rubber, 20-30 parts of hydrogenated nitrile rubber, 5-10 parts of graphene composite particles, 1-3 parts of magnesium hydroxide and 1-3 parts of dioctyl terephthalate. The conveyor belt prepared by the invention not only has relatively high mechanical strength and tear resistance, but also has good flame retardant property.

The invention discloses a solar photovoltaic cable sheath material and a tear-resistant photovoltaic cable, and belongs to the field of photovoltaic cable manufacturing. The sheath material comprises the following components in parts by weight: 70-120 parts of ethylene propylene rubber, 10-13 parts of crosslinked polyethylene, 3-7 parts of zinc oxide, 1-4 parts of stearic acid, 1-2 parts of paraffin, 2-5 parts of an anti-aging agent RD, 8-12 parts of zinc borate, 150-200 parts of a reinforcing agent, 10-12 parts of high abrasion furnace black, 9-13 parts of tricresyl phosphate, 9-13 parts of red phosphorus, 0.5-1 part of an accelerant TMTD, 3-5 parts of DCP and 1-2 parts of HVA-2. The reinforcing agent composed of sodium silicate, ferric chloride and aluminum hydroxide is added into the sheath material, so that when the sheath material is damaged, sodium silicate and ferric chloride react under the influence of air moisture to generate colloidal silicic acid carrying ferric hydroxide and aluminum hydroxide, and the damaged part is filled with the colloidal silicic acid; and meanwhile, the aluminum hydroxide can promote the colloidal silicic acid to be dried, so that the damaged part is repaired, and the situation that the tear resistance of the cable is remarkably worsened due to damage is avoided.

The invention relates to the technical field of polymer foam materials, in particular to a preparation method of gradient cross-linked pearl wool microcellular foamation.According to a gradient cross-linked network constructed through a two-stage cross-linking technology, collaborative optimization of the performance of a surface layer and the performance of a core part of the material is achieved, a compact three-dimensional net-shaped structure is formed in a high-cross-linking-degree area of the surface layer, and the core part of the material is expanded; the surface hardness, wear resistance and tear resistance of the material are remarkably enhanced, external impact and friction damage are effectively resisted, the low-crosslinking-degree area of the core part retains the moderate movement capacity of a polymer chain, the material is endowed with excellent energy absorption characteristic and flexibility, and the material has good mechanical properties when bearing complex stress. Stress dispersion can be achieved through surface layer-core part synergistic deformation, fracture failure caused by local stress concentration is avoided, meanwhile, a gradient cross-linked network provides a controllable melt strength gradient field for supercritical fluid foaming, and therefore accurate control over the size and distribution of foam holes is achieved in the single-time foaming process.

The invention relates to the technical field of manufacturing of gum dipping labor protection appliances, in particular to waterborne polyurethane for labor protection gloves and a preparation method of the waterborne polyurethane. According to the waterborne polyurethane for the labor protection gloves, the solid content ranges from 45% to 50%, the viscosity is basically maintained between 56 mPa.s and 58 mPa.s, the average particle size of polyurethane in emulsion ranges from 300 nm to 500 nm, the potential of the emulsion ranges from-35 mV to-50 mV, the waterborne polyurethane has good dispersion stability and high solid content, and after being cured into an adhesive film, the waterborne polyurethane has high strength and good flexibility at the same time; the waterborne polyurethane working gloves obtained by dipping the waterborne polyurethane have excellent friction resistance, tear resistance and penetration resistance.

A seat cushion includes a mesh member embedded into a foam member. The mesh member comprises a set of filaments of polymeric material which are looped and bonded to each other. The mesh increases rigidity, cut resistance, tear resistance, and abrasion resistance of the foam member, eliminating the need for scrim and border wire in some applications.

The invention discloses a high-toughness biaxially oriented nylon film and a production method thereof. Comprising the following raw materials in parts by weight: 40-50 parts of copolymerized nylon resin, 10-20 parts of nylon 12, 15-25 parts of thermoplastic polyamide elastomer, 3-6 parts of nanofiller, 1-3 parts of coupling agent, 10-20 parts of reinforced fiber, 5-8 parts of additive, 3-7 parts of ethylene-methyl acrylate-glycidyl methacrylate terpolymer and 6-10 parts of modified cellulose nanocrystal. The invention relates to a flame-retardant polyamide resin, which is prepared from the following components in parts by weight: 2-4 parts of amino-terminated hyperbranched polyamide and 1-3 parts of 3, 3 '-diamino-4, 4'-difluorodiphenyl sulfone. The film is high in tensile strength, good in tear resistance and excellent in barrier property and low-temperature impact resistance.

The invention discloses a preparation method of a rubber waterstop material with a low compression set rate, which comprises the following steps: firstly, carrying out blending reaction on hydroxyl silicone oil and boric acid to obtain liquid polyborosiloxane; the preparation method comprises the following steps: adding liquid polyborosiloxane and natural rubber into an internal mixer according to a ratio, and carrying out internal mixing to obtain a mixture; adding zinc oxide, an anti-aging agent, stearic acid and an anti-tearing agent into the obtained mixture, and continuously mixing; continuously adding kaolin talcum powder, calcium carbonate, calcium oxide, white carbon black, N550, N330 and KH550, and internally mixing again to obtain a preform; adding a vulcanization accelerator and a vulcanizing agent into the preform, and continuously mixing to obtain a rubber material to be vulcanized; and vulcanizing and forming the rubber material to be vulcanized to prepare the rubber water-stop belt material with the low compression set rate. According to the invention, the compression set rate of the rubber material can be reduced while the tensile strength, elongation, tear resistance and other properties of the rubber are not sacrificed, so that the product performance is enhanced.

The invention discloses a preparation process of cutting-resistant and puncture-proof protective gloves, and belongs to the technical field of preparation methods of protective gloves. According to the technology, the four steps of pretreatment, composite coating material dipping, dipping of different butadiene-acrylonitrile rubber latexes and partitioned vulcanization treatment are adopted, balance of protection performance and wearing comfort is achieved through combination of technology optimization and material innovation, the cutting resistance of the prepared protective gloves reaches the grade E of the GB24541-2022 standard, the puncture resistance and the tear resistance both reach the grade 4, and the service life of the protective gloves is prolonged. And the composite material is good in air permeability and excellent in durability, is particularly suitable for high-risk operation scenes such as military, security and metal processing, and has remarkable technical progress and industrialization value.

The invention discloses a tear-resistant fluororubber material and a preparation method thereof, and belongs to the technical field of fluororubber production, and the tear-resistant fluororubber material comprises the following raw materials: tetrafluoroethylene-propylene rubber, modified carbon nanotubes, a vulcanizing agent, an accelerant, a plasticizer and an anti-aging agent. The modified carbon nanotube is prepared by the following steps: adding a multi-walled carbon nanotube into 2-phosphonobutane-1, 2, 4-tricarboxylic acid, vacuumizing, heating and stirring, cooling, discharging, washing and drying to obtain a phosphonic acid modified carbon nanotube, adding the phosphonic acid modified carbon nanotube and thioacetamide into pure water, ultrasonically stirring, adding a metal nitride, and stirring to obtain the phosphonic acid modified carbon nanotube. And heating to 80-90 DEG C, stirring at a constant temperature for 8-10 hours, cooling to room temperature after the stirring is finished, and carrying out suction filtration, washing and drying to obtain the modified carbon nanotube. Through detection, the fluororubber prepared by the invention has excellent tear resistance, mechanical property and flame retardant property.

The invention discloses a silica gel material with high tensile strength and a preparation method thereof, and the preparation method comprises the following steps: mixing fumed silica and a silane coupling agent, carrying out surface modification treatment to obtain a modified filler, and premixing methyl vinyl silicone rubber and hydroxyl silicone oil in mixing equipment to obtain a matrix mixture; the modified filler and the nano aluminum oxide are added into the matrix mixture in batches and are dispersed and blended through mixing equipment, so that uniform dispersion of the nano filler is realized, stress concentration is effectively reduced, and the tear resistance is improved; then the silica gel rubber compound is transferred into open type mixing equipment, a peroxide vulcanizing agent is added, thin-passing dispersion is carried out, a to-be-vulcanized rubber material is sequentially subjected to first-stage mold pressing vulcanization and second-stage post-vulcanization treatment, the high-tensile-strength silica gel material with a cross-linked network structure is formed, the cross-linking density is guaranteed, meanwhile, internal defects are eliminated, and the high-tensile-strength silica gel material with the cross-linked network structure is obtained. The tensile strength of the material is obviously improved; the uniformity and the aging resistance of the material are improved, and the silica gel material with high strength and high elasticity is obtained.

The invention provides a dealcoholized silicone sealant with high tear strength and fatigue resistance and a preparation method thereof. The silicone sealant comprises the following components in parts by weight: 100 parts of alpha, omega-dihydroxy polysiloxane, 20-40 parts of polyborosiloxane, 5-15 parts of simethicone, 70-140 parts of nano active calcium carbonate, 3-7 parts of a cross-linking agent, 1-3 parts of a compound coupling agent, 2-5 parts of a titanate vulcanizing agent A and 2-4 parts of a titanate vulcanizing agent B. According to the method, polyborosiloxane and alpha, omega-dihydroxy polysiloxane are adopted as basic polymers, a titanate vulcanizing agent is compounded, and a filler, a cross-linking agent, a coupling agent and the like are matched to obtain the dealcoholized silicone sealant which has relatively high tear strength and excellent fatigue resistance; and obvious negative effects on the surface drying time, the tensile strength, the elongation at break and other mechanical properties and the adhesive property of the silicone sealant are avoided. The invention also overcomes the defects of poor mechanical fatigue resistance and tear resistance of the existing silicone sealant.

The invention discloses a weather-resistant insulating overhead cable, which relates to the technical field of cables, comprises a cable mechanism, and is characterized in that the cable mechanism comprises conductors, an insulating layer, an inner sheath layer and a steel tape armor; according to the invention, the inner sheath layer and the steel tape armoring are arranged at the outer side of the conductor in a layered manner, the inner sheath layer adopts chloroprene rubber as a main raw material, the chloroprene rubber has excellent weather resistance, ozone resistance, chemical corrosion resistance and flame retardance, and carbon black can enhance the wear resistance and tear resistance of the inner sheath layer and improve the weather resistance of the inner sheath layer at the same time; the anti-aging agent can effectively delay the aging speed of the inner sheath layer, the plasticizer improves the flexibility and processability of the chloroprene rubber, the inner sheath layer wraps the shielding layer and further protects the inner insulating layer and the shielding layer, the good weather resistance of the inner sheath layer can resist erosion of the external environment to the internal structure, and the inner sheath layer and the outer insulating layer act synergistically, so that the service life of the cable is prolonged. And the overall weather resistance of the cable is enhanced.

The invention discloses a high-wear-resistance double-sheath automobile high-voltage cable, and particularly relates to the technical field of automobile high-voltage cables, and the high-wear-resistance double-sheath automobile high-voltage cable specifically comprises the following steps: S1, preparing a conductor; s2, coating an inner insulating layer; s3, setting a shielding layer; s4, constructing an inner sheath and a middle layer; s5, adding a fireproof layer; s6, cross-linking the outer sheath; and S7, performance testing. The cable is excellent in performance, the double-layer sheath structure and the cross-linked polyolefin outer layer are adopted to enhance wear resistance and tear resistance, friction and external force in a complex environment in a vehicle can be effectively dealt with, chemical corrosion resistance and water resistance are improved, the cable can resist damage of chemical substances and water, and temperature adaptability is good. The advantages of silica gel and cross-linked polyolefin are combined, the heat resistance is improved, thermal aging is retarded, the flame retardant property is good, the fire risk is reduced, the insulating property is improved, the electromagnetic shielding effect is improved, signal transmission is guaranteed, the stability is high, and the cable is highly suitable for new energy automobiles through pressure resistance and wear resistance tests.

The present invention discloses a wear-resistant and tear-resistant polyamide elastomer composition and a preparation method and application thereof, and belongs to the technical field of modified materials. The wear-resistant and tear-resistant polyamide elastomer composition is prepared by weight from 87.1 to 95.9 parts of polyamide elastomer, 3 to 10 parts of wear-resistant agent, 0.2 to 1 part of cross-linking agent, 0.4 to 1 part of antioxidant, 0.1 to 0.6 parts of nucleating agent, 0.2 to 0.6 parts of dispersant, 0 to 2 parts of masterbatch, and 0 to 0.01 parts of fluorescent brightener. The present invention adopts polyamide elastomer as a substrate, and generates a cross-linking structure through a trifunctional cross-linking agent and an amide bond and / or an end group (amino, carboxyl, hydroxyl) in a polyamide elastomer molecular chain to improve the tear strength of the composition, and adds a polymer wear-resistant agent (PTFE and / or POM powder) to improve the wear resistance and resilience of the composition, so that the badminton racket line nails prepared by the composition of the present invention have playability and durability.

The invention provides a single-component modified silane adhesive as well as a preparation method and application thereof. The adhesive is prepared by mixing the following components: silane modified polyether resin, silane modified polymer resin, a plasticizer, a composite light stabilizer, a filler, a rheological additive, a water removal agent, a coupling agent and a catalyst, the silane modified polyether resin is silane-terminated resin prepared by a hydrosilylation method; the silane-modified polymer resin is a silane-terminated polymer resin containing a urethane bond. The adhesive is excellent in comprehensive performance, the tensile strength of a body is larger than 3 MPa, the elongation at break is larger than 450%, the adhesive is high in adhesion universality to metal base materials, PET films, ceramics, glass, wood floors, PVC, PC, ABS, wood-plastic composite materials and paint faces, the base materials do not need to be specially treated, the damage form is cohesive failure, and the adhesive has good adhesion strength, tear resistance and excellent temperature resistance and is suitable for being applied to the field of wood products. After aging at 120 DEG C for one week, the tensile strength of the body is greater than 3 MPa, the elongation at break is greater than 430%, and the surface layer can be coated after curing.

The invention relates to the technical field of power cables, and particularly discloses a cable with a cable insulation layer and a preparation method thereof, and the cable comprises a conductor and an insulation layer wrapping the conductor. The preparation method comprises the following steps: S1, raw material pretreatment: preheating and softening the high-strength silicone rubber in a temperature interval of 120-150 DEG C; s2, a mixing procedure: adding an aluminum hydroxide flame retardant and ethylene-vinyl acetate copolymer resin into the pretreated high-strength silicone rubber; and S3, extruding and coating: applying the mixed composite material to the periphery of a conductor through an extruder, and controlling the extrusion temperature to be 140-170 DEG C. The cable can be used for power transmission in a high-temperature environment, and has the advantages that the flexibility and tear resistance are maintained in the high-temperature environment, and meanwhile, the long-term thermal stability is improved; in addition, the preparation method disclosed by the invention has the advantages of improving the compatibility of the filler and the matrix and improving the mechanical property of the cable.

The invention relates to a lightweight foaming sole material, which comprises the following raw materials by mass: 20-30% of a PA / EBA modified blend; 10% to 20% of a TPEE / EBA modified blend; 10%-30% of an ethylene-butyl acrylate copolymer (EBA); 8%-15% of an ethylene-octylene copolymer POE; 8%-15% of brominated butyl rubber BIIR; 2%-3% of talcum powder; 5%-10% of a coupling agent; 0.5%-1% of a lubricant; 1%-2% of a foaming aid; 0.3%-1% of a cross-linking agent; and 3%-7% of a foaming agent. The foaming sole material provided by the invention has the advantages of high elasticity, tear resistance and wrinkle resistance; the preparation method is simple and low in production cost, and has a wide application prospect in the field of foamed sole materials.

The invention provides a liquid silicone rubber composition, a coated fabric and a preparation method and application thereof. The composition adopts pure organic silicon resin to replace fumed silica powder, and comprises the following components in percentage by weight: 20-50% of polysiloxane containing alkenyl at the tail end, 20-50% of organic silicon resin, 2-10% of hydrogen-containing silicone oil, 1-6% of catalyst, 0.5-3% of adhesive, 0.1-2% of inhibitor and 2-4% of optional color paste or stabilizer. The component A and the component B are homogenized and mixed for 2 h under the condition that the temperature is lower than or equal to 50 DEG C, and coating liquid is prepared according to the weight ratio of 10: 1; and after blade coating of 25g / m < 2 >, rapid curing is carried out at 190 DEG C for 1-5 minutes, and the silicone rubber coated fabric which is compact, tear-resistant, weather-resistant, excellent in interface adhesion and soft in hand feeling is prepared. The product is suitable for the fields of synthetic leather, personal protection materials or special conveyor belts.

The invention discloses a cross-linking type biodegradable POF heat shrink film and a preparation method thereof, and belongs to the technical field of heat shrink films, and the cross-linking type biodegradable POF heat shrink film is characterized by comprising three layers of films which are sequentially attached, each of the first-layer film and the third-layer film comprises the following raw materials in percentage by weight: 89.5-94% of PP, 2-6% of degradable master batch, 0.5-3% of an anti-blocking agent and 1-4% of a slipping agent; the second-layer film is prepared from the following raw materials in percentage by weight: 30 to 35 percent of LLDPE-A, 9 to 14.5 percent of toughening agent, 0.5 to 1 percent of degradable master batch, 40 to 45 percent of LLDPE-B and 10 to 15 percent of metallocene LLDPE; the melt index of the LLDPE-A is 2.5 g / 10min, the melt index of the LLDPE-B is 2.1 g / 10min, the melt index of the metallocene LLDPE is 1.0 g / 10min, and through the synergistic effect between the LLDPE with different melt indexes and the flexibilizer, the low-temperature tear resistance of the heat shrink film is effectively improved.

The invention relates to the field of rubber materials, in particular to a wear-resistant light rubber material and a preparation method thereof.The rubber material is prepared from, by weight, 20-30 parts of natural rubber, 40-50 parts of butadiene styrene rubber, 10-20 parts of ethylene-vinyl acetate copolymer, 20-40 parts of white carbon black, 10-20 parts of carbon black, 5-15 parts of modified ceramic fiber and 3-5 parts of foaming agent. 1-3 parts of a silane coupling agent, 1-3 parts of a lubricant, 1.5-2.5 parts of a vulcanizing agent and 1-2 parts of an accelerant. Wherein the natural rubber provides high elasticity and tear resistance, the butadiene styrene rubber endows the material with excellent wear resistance and fatigue resistance, and the natural rubber and the butadiene styrene rubber are combined to form an elasticity-wear resistance complementary effect. The carbon black and the white carbon black are used as reinforcing agents, so that the hardness and the wear resistance of the material are improved; and the modified ceramic fibers form a rigid support network through directional distribution, so that external impact is resisted, and the strength, crack resistance and wear resistance are further enhanced.

The invention relates to the technical field of rubber material preparation, in particular to a tear-resistant heavy truck engine suspension rubber material and a preparation method thereof. The tear-resistant heavy truck engine suspension rubber material is prepared from the following raw materials in parts by weight: 75 to 90 parts of natural rubber, 15 to 25 parts of butadiene styrene rubber, 8 to 20 parts of reinforced fibers, 12 to 25 parts of carbon black, 3 to 8 parts of an activating agent, 1.5 to 4 parts of an anti-aging agent, 2 to 4 parts of microcrystalline wax, 1.5 to 3.5 parts of an accelerant, 1 to 3 parts of a tackifier, 1 to 3 parts of a dispersing agent, 0.5 to 1.5 parts of sulfur and 0.5 to 1.5 parts of a silane coupling agent. The rubber material provided by the invention has excellent tear resistance, is suitable for heavy trucks and other high-load environments, has good aging resistance, ensures the long service life of the material, and is simple and feasible in preparation method, low in cost and easy to realize large-scale production.

The invention relates to the technical field of high-performance insulating materials, and discloses anti-aging and high-thermal-stability aramid insulating paper and a preparation method thereof.Active amino functional groups are introduced to the surfaces of aramid fibers through amination modification treatment, and the interface bonding force between the fibers and filler and other fibers is enhanced. According to the present invention, with the introduction of the nanometer titanium dioxide reinforcing material, the dispersibility and the uniformity of the fiber are improved, the traditional fiber agglomeration problem is avoided, the overall mechanical property of the paper is enhanced, especially the interlayer bonding strength and the tear resistance are enhanced, and the introduction of the nanometer titanium dioxide reinforcing material provides the excellent heat resistance and the excellent electrical insulation property for the insulation paper. In the treatment process of the filler, an SDS dispersing agent is added to further stabilize the dispersion of the filler. Through ultrasonic dispersion treatment, uniform distribution of nano titanium dioxide in the slurry is ensured, the interface bonding force between the filler and the amino-modified aramid fiber is further enhanced, the thermal expansion coefficient of the paper is reduced, and the dimensional stability of the paper is improved.

The invention relates to the technical field of high polymer materials, and discloses a co-polypropylene biaxially oriented film and a preparation method thereof, the co-polypropylene biaxially oriented film comprises an upper surface layer, a lower surface layer and three core layers; each of the upper surface layer and the lower surface layer independently comprises the following components in parts by weight: 80-90 parts of propylene copolymer; 6-8 parts of an anti-adhesion agent; 2-6 parts of a slipping agent; 2-6 parts of a hot slipping agent; the three core layers comprise the following components in parts by weight: 94-98 parts of a propylene copolymer; and 2-6 parts of a slipping agent. The co-polypropylene biaxially oriented film provided by the invention has excellent tensile strength, tear resistance and shrinkage effect, and solves the problem of film breakage caused by too high speed during packaging of the biaxially oriented film. Meanwhile, the surface of the film has a relatively low friction coefficient, so that the biaxially oriented film is endowed with relatively good thermal smoothness.

To provide a laminate excellent in tearing property while reducing environmental load.SOLUTION: A laminate comprises a substrate film, a primer layer, an adhesive layer, and a sealant film in this order, and includes a printed surface of an electrostatic ink composition adhered to the adhesive layer. The adhesive layer contains a solvent-free adhesive composition including a polyol component and a polyisocyanate component, its cured product, or a mixture thereof, and the adhesive strength of the adhesive layer is 1.0 N / 15 mm width or more. The laminate has a group of scratches, each consisting of multiple scratches that include through-holes.SELECTED DRAWING: Figure 1

The invention discloses high-wear-resistance tread rubber for an off-the-road tire, and relates to the technical field of tires. According to the technical scheme, the rubber composition comprises the following components in parts by weight: 100 parts of a rubber component, 35-55 parts of carbon black, 4-6 parts of a wear-resistant agent DC-Z-B, 10-20 parts of white carbon black, 1-2 parts of a silane coupling agent, 1-2 parts of alkylphenol tackifying resin, 8-12 parts of a CR multifunctional composite reinforcing agent TDS, 3-5 parts of an anti-aging agent, 1-2 parts of microcrystalline wax, 3-5 parts of zinc oxide, 1-2 parts of stearic acid, 1.5-2 parts of sulfur and 1.2-2.4 parts of an accelerant. The wear-resistant agent DC-Z-B and CR multifunctional composite reinforcing agent TDS are adopted, through interface optimization, dynamic performance complementation and thermal stability synergy, the wear resistance and tear resistance of the tread rubber can be further improved, and the comprehensive performance improvement of '1 + 1gt, 2' is achieved.

The invention discloses a tear-resistant high-strength rubber cushion belt for a heavy truck and a preparation method of the tear-resistant high-strength rubber cushion belt, and relates to the technical field of rubber cushion belts. Hybrid short fiber modified natural rubber is used as a main raw material; phosphotungstic acid modifies the surface of a graphene nanosheet through a coordinate bond, cerium dioxide generated through hydrolysis is combined with heteropolyanions of phosphotungstic acid through a W-O-Ce bond, electrostatic adsorption is carried out on the surface layer of a protonated aramid short fiber, and a hybrid short fiber is prepared; mixing according to the ratio, extruding a rubber strip according to the weight and length requirements, vulcanizing, and uniformly adhering the cord fabric with the composite coating on the surface to the two sides of the R arc through a special-shaped die during extrusion. The proportioning components of the flap are particularly suitable for occasions requiring high rigidity and good shape retentivity, such as heavy trucks, and the flap has excellent tear resistance and high strength. The prepared cushion belt has the effects of tear resistance and high strength.

The invention provides a glass assembly and a vehicle, the glass assembly comprises a glass structure, an electric function layer and a connector module, the electric function layer is arranged on the glass structure, the connector module comprises a flexible circuit board and a rib, one end of the flexible circuit board is arranged on the glass structure and electrically connected with the electric function layer, and the other end of the flexible circuit board extends out of the glass structure and is used for being connected with a wire harness structure; wherein the flexible circuit board is provided with a corner part, and the ribs are arranged corresponding to the corner part. Ribs can be arranged at the positions corresponding to the corner parts, the strength of the flexible circuit board is improved through the ribs, the tear resistance is improved, and the connector module is prevented from being damaged due to tear in the transportation and operation process.