3039 results about "Thermoplastic polyurethane" patented technology

The invention provides a low-voltage cable, and relates to the technical field of cables, the low-voltage cable comprises a conductor layer, a support layer, a shielding layer and a sheath layer, the conductor layer is composed of multiple strands of fractal stranded conductors, and each fractal stranded conductor comprises an inner-layer superfine silver-plated copper wire, a middle-layer copper-clad aluminum wire and an outer-layer nickel-plated copper alloy wire; the supporting layer wraps the conductor layer and comprises an inner supporting layer, a dynamic framework layer and an outer restraint layer, the inner supporting layer is an obliquely wound aramid fiber woven belt, the dynamic framework layer is formed by alternately arranging shape memory polymers and carbon fiber composite belts, and the outer restraint layer is a spirally wound silica gel-glass fiber composite rope. The shielding layer comprises a tinned copper wire woven mesh; the sheath layer is a thermoplastic polyurethane matrix, a microcapsule self-repairing agent is dispersed in the thermoplastic polyurethane matrix, a microcapsule comprises a siloxane prepolymer, and the thermoplastic polyurethane matrix further comprises graphene nanosheets. Through collaborative design of the fractal stranded conductor layer, the dynamic skeleton support layer, the shielding layer and the self-repairing sheath, comprehensive improvement of cable performance is realized.

The invention discloses a wear-resistant and high-temperature-resistant synchronous belt and a preparation method thereof. The wear-resistant and high-temperature-resistant synchronous belt comprises a synchronous belt framework and a synchronous belt rubber sheet, the synchronous belt rubber sheet is prepared from the following raw materials: a fluorosilicone thermoplastic polyurethane elastomer containing a benzene ring structure, an amino-containing hyperbranched liquid crystal polymer, methyl vinyl phenyl silicone rubber, epoxidized natural rubber, molybdenum sulfide nanosheets, reinforced fibers, bis (1-vinyl imidazole-2-) ketone, 2-acrylamido-2-methylpropanesulfonic acid, 4, 4 '-difluoro-1, 3, 4-trimethyl-1, 3, 4-trimethyl-1, 3, 4-trimethyl-1, 3, 4-trimethyl-1, 3, 4-trimethyl-1, 3, 4-trimethyl-1, 3, 4-trimethyl-1, 3, 4-trimethyl-1 The high-temperature-resistant rubber is prepared from 2, 6-hydroxy-2-cyanobenzothiazole, bis (3-aminophenyl) 3, 5-bis (trifluoromethyl) phenylphosphine oxide, a catalyst, a coupling agent, a vulcanizing agent, an anti-aging agent, a scorch retarder and a lubricating agent. The synchronous belt is good in mechanical property, sufficient in high-temperature resistance and cold resistance, good in wear resistance and excellent in aging resistance and flame retardance.

The invention relates to the technical field of TPU films, in particular to a flame-retardant TPU film and a preparation method thereof, and the flame-retardant TPU film comprises the following raw materials in parts by weight: 45-50 parts of TPU, 7-11 parts of a modified additive, 6-9 parts of a chemical resistant agent, 5-8 parts of a flame retardant, 3-5 parts of a flexibilizer, 2-3 parts of an antioxidant, 2-3 parts of a silane coupling agent and 1-3 parts of a lubricant. According to the TPU thin film, TPU is adopted as a matrix, the flame retardant, the flexibilizer, the antioxidant, the silane coupling agent and the lubricant are added to serve as functional auxiliaries, and meanwhile the modified additive and the chemical resistance agent are added to serve as blending raw materials, so that the flame retardance of a product is optimized, the coordinative improvement of water vapor blocking and tearing is achieved, and the ultraviolet-resistant and corrosion-resistant stability effects of the product are remarkable.

The invention discloses a multifunctional electronic product screen protective film and a preparation method thereof. The protective film comprises a modified base film and a multifunctional composite layer compounded on the surface of the modified base film, the multifunctional composite layer comprises an elastic buffer layer and a self-repairing layer which are sequentially arranged from inside to outside; wherein the elastic buffer layer is an elastic buffer layer with gradient density; the elastic buffer layer comprises the following components in parts by weight: 100 parts of a thermoplastic polyurethane elastomer, 15-25 parts of hollow glass microspheres, 10-15 parts of polyethylene glycol and 3-6 parts of an isocyanate cross-linking agent; the self-repairing layer comprises the following components in parts by weight: 100 parts of a dynamic reversible covalent bond polymer, 30-40 parts of phase change material microcapsules, 10-15 parts of nano cellulose, 5-8 parts of a near-infrared photosensitive initiator and 2-4 parts of an antioxidant. Compared with the prior art, the protective film provided by the invention has excellent scratch self-repairing performance, good adhesion and high anti-explosion screen performance.

The invention relates to a modified polyurethane elastomer and application of the modified polyurethane elastomer in preparation of bimodal cellular structure foam, and belongs to the technical field of foam forming. The invention provides a modified polyurethane elastomer. The modified polyurethane elastomer comprises the following components: a thermoplastic polyurethane elastomer, a polyisocyanate-based chain extender and an antioxidant component, in the modified polyurethane elastomer, the mass ratio of the thermoplastic polyurethane elastomer to the polyisocyanate chain extender to the antioxidant component is 1: (0.01-3): (0.05-1). According to the modified polyurethane elastomer, non-uniform chain extension modification is carried out on the thermoplastic polyurethane elastomer by introducing an insufficient amount of a polyisocyanate group chain extender, and the thermoplastic polyurethane elastomer foam obtained by foaming the modified polyurethane elastomer has a bimodal (big and small holes) foam structure; and the material has various excellent performances of light weight, heat insulation, sound insulation, buffering, high resilience and the like.

The invention belongs to the technical field of shoe materials, and particularly relates to a high-elasticity shoe material and a preparation process thereof. The high-elasticity shoe material comprises the following components in parts by weight: 70-80 parts of thermoplastic polyurethane elastomer; 10 to 20 parts of an ethylene-vinyl acetate copolymer; 15 to 20 parts of an ethylene-octylene copolymer; 10 to 15 parts of nitrile rubber; 8-10 parts of a composite antibacterial agent; 2-4 parts of a foaming agent; 0.6-1 part of zinc oxide; 1-2 parts of an antioxidant; 10-15 parts of a composite filler; the components are subjected to a blending foaming process to prepare the shoe material which is moderate in hardness, light in weight and high in elasticity, and the prepared shoe material also has good strength, wear resistance, yellowing resistance, antibacterial property and flame retardance.

The invention discloses a halogen-free flame-retardant TPU (thermoplastic polyurethane) material suitable for a charging pile cable and a preparation method of the halogen-free flame-retardant TPU material, belongs to the technical field of TPU material processing, and aims to solve the technical problem that the flame retardance and wear resistance of a TPU material for a cable in the prior art need to be further improved. The material comprises the following raw material components in parts by weight: 80-100 parts of a cross-linked thermoplastic elastomer, 10-20 parts of a modified filler, 10-20 parts of a flame-retardant chain extender, 3-5 parts of a stabilizer, 3-5 parts of an antioxidant, 3-5 parts of an ultraviolet light absorber and 3-5 parts of a lubricant, after the modified thermoplastic elastomer is prepared, the modified thermoplastic elastomer is activated and cross-linked with the flame-retardant cross-linking agent, a silane structure is introduced into the structure, the flame-retardant cross-linking agent and the modified filler enhance the flame-retardant capability of the material through a synergistic effect, and meanwhile, the compatibility of the material and an inorganic material is enhanced by hybridizing a polyurethane chain segment; the wear resistance, flame retardance and other properties of the material are improved.

The invention discloses a halogen-free flame-retardant TPU (thermoplastic polyurethane) cable material and a preparation method thereof, belongs to the technical field of TPU processing, and aims to solve the technical problem that the wear resistance and flame retardance of a TPU cable material in the prior art need to be further improved. The TPU cable material is prepared from the following raw material components in parts by weight: 80 to 100 parts of polyurethane elastomer, 1 to 2 parts of antioxidant, 1 to 3 parts of stabilizer, 10 to 15 parts of plasticizer, 10 to 20 parts of filler and 5 to 10 parts of flame-retardant glass powder. The TPU cable material is obtained by blending, melting and extruding the polyurethane elastomer, the flame-retardant glass powder and auxiliary materials; during combustion, flame-retardant groups in the polyurethane elastomer and the flame-retardant glass powder are decomposed to promote carbonization of triazine groups in the polyurethane elastomer to obtain a flame-retardant layer, and the TPU cable material is flame-retardant, wear-resistant, stretch-resistant, high-temperature-resistant and more environment-friendly through crosslinking of organic chain segments and synergistic cooperation of functional groups.

The invention discloses a chain extender containing a hydrazide structure, a preparation method of the chain extender and application of the chain extender in preparation of polyurethane. The chain extender containing the hydrazide structure is prepared by carrying out Michael addition reaction on raw materials including a hydrazide compound and unsaturated carboxylic ester; the Michael addition reaction comprises a reaction process of carrying out addition on amino in the hydrazide compound and a carbon-carbon unsaturated bond in the unsaturated carboxylic ester to generate secondary amine. According to the invention, the problem that a solvent is needed and / or high-temperature melting is needed when a hydrazide compound is used as a polyurethane chain extender can be solved, and a thermoplastic polyurethane elastomer material with relatively high mechanical strength and toughness and excellent mechanical recovery performance can be prepared.

The invention discloses a preparation method of a rapidly-formed Janus structure stretchable electrode, an electrode material system is a material system composed of thermoplastic polyurethane (TPU), liquid metal particles and N, N-dimethylformamide (DMF), and electrode forming comprises two self-assembly processes. In the first self-assembly process, the liquid metal particles rapidly settle to form a Janus structure under the action of gravity; and a second self-assembly process: quickly dissolving DMF in water under the action of phase separation, and quickly separating out TPU to form a porous structure. The whole electrode forming process is about 15 seconds, which is the fastest stretchable electrode film forming process so far. The electrode has high conductivity, high stretchability and insensitivity to tensile strain, the electrode can spontaneously form a Janus structure with one conductive side and the other insulated side so as to achieve a self-protection structure for the whole electrode, and the electrode is expected to be applied to the flexible electronic fields of electronic skin, human body information detection, stretchable electronic devices and the like.

The invention relates to the technical field of TPU (thermoplastic polyurethane) protective films, in particular to a fluoride-free antibacterial TPU protective film and a preparation method thereof. The fluoride-free antibacterial TPU protective film comprises the following raw materials in parts by weight: 35-40 parts of TPU particles, 10-15 parts of a balance regulator, 8-12 parts of an antibacterial agent, 3-6 parts of an antioxidant, 3-5 parts of a heat stabilizer and 2-3 parts of a lubricant. According to the TPU protective film disclosed by the invention, TPU particles are matched with the antibacterial agent, the antioxidant, the heat stabilizer and the lubricant to serve as functional aids, and the balance regulator and the filling agent doped with flaky boron nitride are added to coordinate, cooperate and jointly achieve synergistic effects, so that the product is excellent in raw material interfacial compatibility, and the antibacterial property, barrier property and mechanical property of the product are improved in a coordinated and balanced manner; and the product has remarkable weather-resistant and acid-corrosion-resistant stability effects.

The invention discloses a preparation method of a cellulose acetate / thermoplastic polyurethane / polypyrrole composite conductive nanofiber aerogel composite pressure sensing material. The preparation method comprises the following steps: (1) preparing a cellulose acetate and thermoplastic polyurethane spinning solution; (2) preparing a cellulose acetate / thermoplastic polyurethane composite nanofiber membrane; (3) preparing cellulose acetate / thermoplastic polyurethane short nano dispersion liquid; (4) preparing a cellulose acetate / thermoplastic polyurethane / polypyrrole polymerization solution; and (5) preparing the cellulose acetate / thermoplastic polyurethane / polypyrrole composite conductive nanofiber aerogel. According to the preparation method, a high-temperature thermal annealing process is not needed, and the prepared nanofiber composite aerogel has high conductivity, ultralow volume density, high compression deformation performance and high pressure resistance sensing sensitivity.

The invention relates to the technical field of refrigeration material preparation, in particular to an efficient passive radiation refrigeration material suitable for a sub-super environment and a preparation method and application of the efficient passive radiation refrigeration material. The method comprises the following steps: uniformly mixing thermoplastic polyurethane, sunlight high-reflection inorganic particles and a phase change material in a solvent; after a chemical foaming agent is added, the obtained suspension liquid is heated and foamed in a confinement mold, and wet gel is formed; and finally, carrying out freeze drying treatment to obtain the composite porous aerogel. The prepared material has a micro-nano porous skeleton formed by TPU, and inorganic particles and PCM are uniformly dispersed in the skeleton wall. Through component cooperation and a special porous structure, the material has extremely high sunlight reflectivity and mid-infrared emissivity, self-adaptive temperature regulation and control are achieved through PCM phase change, the problem that refrigeration of a traditional material fails in the sub-environment such as the vertical surface is effectively solved, and efficient sub-super-environment heat management is achieved.

The invention relates to an anti-yellowing automobile composite film and a preparation method thereof, and belongs to the technical field of high polymer materials. The yellow-resistant automobile composite film is prepared from the following components in parts by weight: 60 to 70 parts of PVC (Polyvinyl Chloride) master batch, 10 to 20 parts of TPU (Thermoplastic Polyurethane) master batch, 1 to 2 parts of plasticizer, 0.5 to 0.8 part of flatting agent, 0.1 to 2 parts of yellowing-resistant modifier and 0.1 to 2 parts of modified flame retardant, sym-triazine cyanuric chloride and a benzotriazole intermediate in the anti-yellowing modifier absorb ultraviolet rays and reduce yellowing of the ultraviolet rays on the composite material, and maleimide groups, maleic anhydride and isocyanurate rings for increasing the crosslinking density cooperate with one another, so that the heat resistance of the material is improved, and the yellowing is reduced; phosphorus and nitrogen main chains of phosphonitrilic chloride trimer in the modified flame retardant have a conjugation effect, so that a protective film is formed, oxygen is isolated, and the phosphonitrilic chloride trimer and nitrogen are synergistically flame-retardant; the anti-yellowing automobile composite film prepared by the invention not only has excellent ultraviolet absorption performance, heat resistance and anti-yellowing effects, but also has a good flame retardant effect.

The invention discloses composite conductive powder for preparing conductive silver paste and the conductive silver paste, and particularly relates to the technical field of electronic materials.The composite conductive powder is of a double-shell core-shell structure composed of a silver metal inner core, a silicon dioxide middle coating layer and a silver nanoparticle self-assembled outer layer and is subjected to ultraviolet irradiation treatment; the conductive silver paste is based on the composite conductive powder and is matched with cerium oxide modified glass powder, graphene nanosheets, thermoplastic polyurethane resin and a dibasic acid ester solvent to form a low-temperature environment-friendly formula. The volume resistivity of the conductive silver paste is as low as 1.2 * 10 <-6 > omega.cm, the curing temperature is reduced to 120 DEG C, the content of volatile organic compounds meets the environmental protection standard, meanwhile, the tensile strength is improved by 50%, the conductive silver paste can bear 500 times of bending circulation without breakage, the adhesive force reaches the level 0 of a cross-cut method, the strict requirement of a high-performance electronic device for the conductive silver paste is effectively met, and the conductive silver paste has wide application prospects.

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 discloses a dicyclohexylmethane diisocyanate composition and a thermoplastic polyurethane elastomer. The content of an isomer 2, 4 '-dicyclohexylmethane diisocyanate (2, 4'-HMDI) in the dicyclohexylmethane dicyanic acid ester composition (HMDI) is less than 2% wt, and the F value range of the HMDI composition is 0.23-0.64. The thermoplastic polyurethane elastomer prepared from the dicyclohexylmethane diisocyanate composition provided by the invention has extremely high light transmittance and extremely high tensile strength.

The invention relates to the technical field of cables, and discloses a corrosion-resistant waterproof cable and a preparation method thereof. The corrosion-resistant waterproof cable sequentially comprises the conductor, the insulating layer, the shielding layer, the waterproof layer and the sheath layer from inside to outside, the waterproof layer is extruded by polyethylene, and the waterproof performance of electric materials can be improved; the sheath layer adopts modified PVC and a thermoplastic polyurethane elastomer as main raw materials, and functional aids such as a plasticizer, a heat stabilizer, a lubricant, a composite flame retardant and the like are added, so that the sheath layer is endowed with excellent corrosion resistance, flame retardance and the like. Therefore, the cable prepared by the invention has a good application prospect in a humid and corrosive environment.

The invention discloses an energy-saving and environment-friendly polyarylate fabric whole-core flame-retardant conveying belt and a manufacturing method thereof. The energy-saving and environment-friendly polyarylate fabric whole-core flame-retardant conveying belt comprises a polyarylate fabric whole belt core, a covering layer and a belt core dipping sizing material, the covering layer comprises the following components: solution polymerized styrene-butadiene rubber, a styrene-butadiene-styrene block copolymer, a thermoplastic polyurethane elastomer, zinc oxide, stearic acid, sulfur, an accelerant, an anti-aging agent, carbon black, a hybrid flame-retardant composite material, a phosphate flame retardant, paraffin oil and an antistatic agent; the covering layer of the energy-saving and environment-friendly polyarylate fabric whole-core flame-retardant conveying belt prepared by the invention is compounded from white carbon black, expanded graphite, diethyl aluminum hypophosphite and dimethyl imidazole zinc, and is subjected to surface treatment through polyacrylamide; and then the styrene-butadiene-styrene block copolymer is used for carrying out macromolecular modification on the hybrid flame-retardant composite material, so that the prepared conveyor belt has excellent flame-retardant and antistatic properties, environment-friendly properties, low rolling resistance and mechanical properties.

The utility model discloses a thermoplastic polyurethane elastomer extruder, and particularly relates to the technical field of extruders, the thermoplastic polyurethane elastomer extruder comprises an extruder main body for manufacturing a thermoplastic polyurethane elastomer, the front end of the extruder main body is provided with a die assembly, the die assembly comprises a long plate, the front end of the long plate is provided with two circular grooves, and the long plate is provided with a screw. Extrusion heads for extruding thermoplastic polyurethane elastomers are arranged in the two circular grooves, extrusion holes are formed in the front ends of the two extrusion heads, a rotating rod fixedly penetrates through the center of the front end of the long plate, and the outer walls of the front end and the rear end of the rotating rod are movably sleeved with supporting plates. The gear motor drives the rotating rod to drive the long plate to rotate, the positions of the two extrusion heads can be automatically switched in the process of extruding the thermoplastic polyurethane elastomer, so that the extruded shapes of the thermoplastic polyurethane elastomer are different, meanwhile, when the two extrusion heads are switched, a worker can conveniently detach the extrusion heads to clean and replace, and the working efficiency is improved. Therefore, the applicability of the extruder main body is improved.

The invention discloses a bio-based thermoplastic polyurethane coating material easy to degrade quickly and a controlled-release fertilizer. The coating material comprises 0.8-2.0 parts of a biological chain matrix and 0.5-1.5 parts of a chain reinforcing agent; the biological chain matrix is formed by mixing pre-oxidized vegetable oil diol and bio-based polyester diol; the chain reinforcing agent is formed by mixing a curing agent, a hardening agent and a toughening agent. The bio-based thermoplastic polyurethane coated controlled-release fertilizer comprises fertilizer particles and a bio-based thermoplastic polyurethane coating material sprayed on the surfaces of the fertilizer particles, the spraying amount of the bio-based thermoplastic polyurethane coating material is 0.8-10% of the mass of the fertilizer particles. By accurately regulating and controlling the formula of the film material, the physical properties such as tensile strength and toughness of the bio-based thermoplastic coating material can be jointly improved, so that a more excellent controlled release effect is achieved, and the contradiction between the degradability and the controlled release property of the existing bio-based polyurethane coating material is solved.

The invention belongs to the field of functional textile materials, and provides a directional moisture-conducting, dry, comfortable, breathable and quick-dry fabric and a preparation method thereof. A three-layer composite structure design is adopted, the outer layer is a gradient wetting structure formed by attaching a thermoplastic polyurethane film subjected to single-face thermal orientation treatment and knitted fabric, the middle layer is a hydrophilic non-woven fabric, the inner layer is a knitted fabric subjected to hydrophilic finishing, and the two layers are compounded through a hot melt adhesive dot-shaped net. Hydrophilic blocks of the thermoplastic polyurethane film are directionally enriched through single-face contact heating, gradient distribution with one hydrophilic side and one hydrophobic side is formed, and the hydrophobic surface is coated with a low-surface-energy coating. The fabric has excellent one-way moisture conduction performance, moisture can be rapidly transmitted from the inner layer to the outer layer and rapidly volatilized, dryness and comfort of the close-fitting fabric are kept, meanwhile, the fabric has good air permeability and quick-drying performance, the moisture conduction rate is increased by 30% or above compared with that of traditional fabric, and the fabric is suitable for being popularized and applied. The fabric has wide application value in the fields of sportswear, outdoor equipment, leakage-proof underpants and the like.

The invention relates to the field of wear-resistant materials, in particular to a high-melt-strength thermoplastic polyurethane elastomer and a preparation method thereof. The thermoplastic polyurethane elastomer with high melt strength is prepared from the following raw materials in parts by mass: 60 to 80 parts of a polyol agent, 25 to 40 parts of isocyanate, 6 to 12 parts of a chain extender, 5 to 15 parts of a melt reinforced composition, 3 to 6 parts of a polymerization additive, 0.05 to 0.15 part of an organic tin catalyst, 0.2 to 0.4 part of an antioxidant, 0.4 to 0.6 part of a hydrolysis stabilizer and 0.1 to 0.3 part of a coupling agent. The high-melt-strength thermoplastic polyurethane elastomer provided by the invention not only can have high melt strength, processability and mechanical properties, but also can keep good transparency, flexibility and other comprehensive properties, and the performance is prevented from being greatly sacrificed, so that the application environment of the thermoplastic polyurethane elastomer is ensured.

The invention relates to the technical field of adhesives, and discloses weather-resistant high-viscosity single-component composite glue, a preparation method and application in a multi-layer structure car cover. The weather-resistant high-viscosity single-component composite glue is prepared from the following components in parts by weight: 10 to 15 parts of high-performance polyurethane prepolymer, 10 to 15 parts of high-acid-value acrylic resin, 1 to 5 parts of cellulose acetate butyrate, 1 to 5 parts of SBS (Styrene Butadiene Styrene) rubber, 1.5 to 4.5 parts of multifunctional nano filler, 1 to 3 parts of potential curing agent and 57 to 75 parts of solvent. The weather-resistant high-viscosity single-component composite glue disclosed by the invention has the advantages of high viscosity and excellent weather resistance and self-repairing performance, and is used for connecting TPU (Thermoplastic Polyurethane) base material layers in a multi-layer structure car cover.

Provided is a layer structure, preferably a security form in a book cover, particularly preferably a security form in a book cover for identification or security documents, comprising at least a) a first radiation-engravable layer a) containing at least one polymeric material; and b) at least one further layer b) containing at least one polymeric material, preferably a thermoplastic elastomer, preferably a thermoplastic polyurethane with a hardness of ≥40 Shore A according to DIN ISO 7619-1-2012-2 to ≤95 Shore D according to DIN ISO 7619-1-2012-2; wherein the further layer b) overlies the first layer a) at least partly to form an overlapping region, and wherein a coherent engraving partly extends in the overlap region, preferably in the further layer b), and partly in the portion of layer a) that extends outside the overlap region, most preferably exclusively in the further layer b). The invention also relates to a method for producing this layer structure and to a laminate comprising such a layer structure and to the use of the layer structure in a security document.

The invention discloses a novel TPU (thermoplastic polyurethane) film laminated composite fabric laminating process with a drying waste gas treatment structure, which comprises a rack, and a coating device and a drying and deodorizing component are respectively arranged on two sides of the upper end of a laminating seat arranged above the middle of the rack; the coating device comprises an upper top plate, a first mounting frame, a second mounting frame, a glue spraying assembly, a limiting side plate and a glue scraping assembly; and the drying and deodorizing assembly comprises a drying box, a pressing assembly, a transmission shaft, an electric heating roller, a driving assembly, a positioning frame, a second conveying roller and a waste gas treatment assembly. According to the novel TPU film laminated composite spun fabric pressing process with the drying waste gas treatment structure, waste gas generated during drying enters a waste gas adsorption device for purification through an exhaust fan via an exhaust pipe, a guide pipe, a three-way connector and an air conveying pipe; and then purified gas with heat is conveyed to the heat preservation cotton sleeve through the heat conduction pipe to conduct heat preservation on the glue storage barrel, the cleanliness of air in a workshop is improved, and the heat utilization rate is increased.

The invention discloses a thermoplastic polyurethane elastomer flexible composite solid electrolyte as well as a preparation method and application thereof. The flexible composite solid electrolyte is prepared from the following raw materials in percentage by weight: 1wt%-30wt% of solute salt; 5 wt%-50 wt% of an inorganic filler; 40 wt% to 90 wt% of a polymer matrix; the invention also specifically discloses a preparation method of the flexible composite solid electrolyte and an application of the flexible composite solid electrolyte in a lithium metal battery. The prepared composite solid electrolyte has excellent mechanical properties, a symmetrical lithium battery assembled based on the composite solid electrolyte can realize stable circulation, and the prepared composite solid electrolyte has relatively high flexibility and relatively high ionic conductivity at the same time, so that the composite solid electrolyte is expected to be applied to wearable electronic equipment.

A toy ball includes an clastic shell that defines a receiving cavity and an actuation module mounted in the cavity. The actuation module is detachably connected to the clastic shell and provides driving force to roll and / or enhance bouncing. The clastic shell includes expanded thermoplastic polyurethane (E-TPU) to provide low weight, high rebound, and compressive resistance.

The invention relates to a high-impact-resistance light-weight high-strength composite board and a preparation method thereof.The preparation method comprises the following steps that S1, a first glass fiber cloth is arranged between two thermoplastic polyurethane films, hot pressing is conducted, and a glass fiber cloth reinforced polyurethane film is obtained; placing the polyamide-polyether block copolymer film between two adjacent layers of glass fabric reinforced polyurethane films, and performing hot pressing to obtain a high-toughness surface layer; s2, adding the modified hollow glass microspheres, bisphenol A epoxy resin, polyurethane modified epoxy resin, dicyandiamide and an accelerant into a solvent to obtain a resin solution; immersing second glass fiber cloth into the resin glue solution, taking out the second glass fiber cloth after the second glass fiber cloth is completely immersed, and baking the second glass fiber cloth to obtain an epoxy glass fiber prepreg; s3, stacking the plurality of epoxy glass fiber prepregs to obtain a low-density core layer; and S4, stacking the low-density core layer between two adjacent high-toughness surface layers, and performing hot pressing to obtain a target product. The high-strength and high-impact-resistance building material has the advantages of light weight, high strength and high impact resistance.

The utility model discloses TPU (thermoplastic polyurethane) composite fabric composite processing equipment which comprises a first mounting frame, a guide rod is slidably connected to the middle of the first mounting frame, a limiting plate is fixedly connected to the top end of the guide rod, and a gluing assembly is fixedly connected to the bottom end of the guide rod; and the gluing assembly comprises a gluing box, the front face of the gluing box is fixedly connected with a first motor, the output end of the first motor is fixedly connected with a rotating shaft, and the surface of the rotating shaft is fixedly sleeved with a gluing roller. According to the glue spreading device, the glue scraping plates are additionally arranged in the glue spreading box, when the glue spreading plates spread glue on the surface of the glue spreading roller, the first motor is started, the rotating shaft drives the glue spreading roller to rotate, and due to the fact that the glue scraping plates are arranged on the left side and the right side of the glue spreading roller respectively, glue can be flattened through the glue scraping plates while the glue spreading roller rotates; and meanwhile, the scraped glue is stored in a glue storage cavity formed by the gluing box and the glue scraping plate, and recycling is facilitated.