9092results about "Lamination" patented technology

The invention relates to the technical field of non-woven fabrics, in particular to a production process of a functional fiber woven non-woven fabric body, the non-woven fabric body comprises a non-woven fabric base body, middle layers are arranged on the upper portion and the lower portion of the non-woven fabric base body, and outer layer bodies are arranged on the outer sides of the middle layers; the middle layer is compounded with the upper part and the lower part of the non-woven fabric base body through polyurethane glue, and the dosage of the polyurethane glue is 20g / m < 2 >; the non-woven fabric body is formed by mutually matching a non-woven fabric base body, a middle layer and an outer layer body, the non-woven fabric base body is formed by weaving first modified spandex fibers and polyester fibers, the middle layer is formed by interweaving second modified polyester fibers and hemp fibers, and the outer layer body is formed by spraying an outer layer agent. The product is excellent in wear resistance, stain resistance, heat preservation and breaking strength, remarkable in comprehensive coordination effect and excellent in washing resistance and ultraviolet stability resistance.

The invention relates to the field of civil engineering waterproof materials, in particular to a nano bentonite-polymer composite material with high salt tolerance and a preparation method thereof, and the nano bentonite-polymer composite material is especially suitable for a sodium-based bentonite waterproof blanket in a saline soil area or a marine environment, and the preparation method comprises the following steps: (1) preparing nano bentonite lamellar colloidal dispersion liquid; (2) introducing and mixing an electrostatic screening agent and a polymerizable monomer; (3) carrying out in-situ free radical polymerization reaction; and (4) post-treatment and finished product preparation. By constructing a three-dimensional interpenetrating hierarchical structure composed of a covalent grafted polymer network, a physically anchored electrostatic screening agent and a stripped bentonite nanosheet layer, effective protection of a bentonite core anti-seepage unit is realized, so that the adaptability and long-term stability of the material under a complex water quality condition are remarkably improved.

The invention discloses a silk protein-MXene composite film and a preparation method thereof. The silk protein-MXene composite film sequentially comprises a conductive surface layer, a porous response layer and a supporting bottom layer from top to bottom, the invention relates to the technical field of composite films. According to the fibroin-MXene composite film and the preparation method thereof, a three-layer gradient structure is formed by the conductive surface layer, the porous response layer and the supporting bottom layer, good conductivity and electromagnetic shielding effectiveness are ensured by utilizing oriented arrangement of MXene of the conductive surface layer, gallic acid and MXene form a hydrogen bond network, and nitrogen-doped carbon quantum dots coat the surface of MXene to form a physical barrier, so that the electromagnetic shielding effect is improved, and the electromagnetic shielding effect is improved. Through double oxidation resistance of gallic acid and nitrogen-doped carbon quantum dots, a sponge body structure formed by the porous response layer is matched to endow the composite film with high-sensitivity response to external stimulation, the supporting bottom layer is crosslinked by hexamethylene diisocyanate and enhanced by nanocellulose, the tensile strength is improved, and the tensile strength of the composite film is improved. And the contradiction between the mechanical property and the conductivity of the traditional composite film is effectively solved.

The invention discloses a laminated structure and a differentiated hole machining method of the laminated structure, and relates to the technical field of machining, the method comprises the steps that S1, first reaming is conducted on the laminated structure, and the laminated structure comprises two or more layers of laminated plates; s2, linings made of matched materials are selected according to the material characteristics of different plates; s3, bushings made of different materials are installed in the reamed holes of the matched plates by pulling the core rod; s4, the linings made of the different materials are extruded, so that the linings made of the different materials are in interference fit with the matched plates; and S5, secondary reaming is conducted on the laminated structure according to the assembly requirement, so that the inner diameters of the deformed bushings made of different materials are the same. According to the method, the fatigue performance of plates made of different materials is coordinated through a differential hole machining method, and the fatigue life of the laminated structure is remarkably prolonged; and it is guaranteed that hole machining of different machining amounts is conducted on the laminated structure under one-time hole forming, the continuity of the hole forming technology is guaranteed, and the hole position precision is improved.

The invention belongs to the technical field of metal composite materials and hydrogen storage and transportation materials, and particularly relates to a high-strength hydrogen-embrittlement-resistant layered metal composite material for hydrogen storage and a preparation method and application of the high-strength hydrogen-embrittlement-resistant layered metal composite material. According to the preparation method, the nickel-saving austenitic stainless steel (NEASS) and the 30CrMo steel are alternately overlapped in a multi-layer mode, and the processes of vacuum electron beam welding, high-temperature hot rolling, accumulative ply rolling, multi-stage heat treatment and the like are combined, so that the composite board with the layer number reaching hundreds of layers, firm interface bonding, excellent mechanical performance and good hydrogen embrittlement resistance is prepared; the technical problem that strength, toughness and hydrogen brittleness resistance of an existing metal material in a high-pressure hydrogen environment are difficult to consider at the same time is solved. The obtained composite material has high strength, high plasticity and excellent hydrogen embrittlement resistance, and is suitable for structural materials of high-pressure hydrogen storage tanks, hydrogen conveying pipelines and other key hydrogen energy equipment.

The invention relates to a method for producing a weather strip (1), said method comprising the steps of: providing a first and a second sealing element (2, 3), each sealing element (2, 3) comprising a carrier layer (4, 4 ') having an upper main surface and a lower main surface; the carrier layer (4, 4 ') and a filled polymer layer (5, 5') covering at least a portion of the upper main surface of the carrier layer (4, 4 '), and bonding the lower main surface of the carrier layer (4) of the first sealing element (2) to at least a portion of the lower main surface of the carrier layer (4') of the second sealing element (3).

The invention provides a waterproof and windproof warm-keeping fabric and a production process thereof, and relates to the technical field of textile fabrics, the waterproof and windproof warm-keeping fabric comprises a protective surface layer, a windproof temperature-locking middle layer and a skin-friendly warm-keeping inner layer which are sequentially arranged from outside to inside, and the three layers are compounded through a gradient hot melt adhesive; the protective surface layer is a graphene oxide modified polyester fiber fabric treated by a composite hydrophobic finishing liquid; the windproof temperature-locking middle layer sequentially comprises a non-swelling environment-friendly TPU film, a polytetrafluoroethylene microporous film and a Cs0. 33WO3 modified PA6 / 66 hollow fiber net from outside to inside, and the three are laminated and compounded into an integrated structure through hot pressing; and the skin-friendly warm-keeping inner layer is a bamboo pulp fiber-cotton-skin-friendly antibacterial polyester fiber blended fabric loaded with phase change microcapsules. The fabric disclosed by the invention integrates excellent waterproof, windproof and warm-keeping properties, is suitable for outdoor and cold-proof clothes, and has both functions and comfort.

The invention relates to the technical field of functional materials, in particular to a polyvinyl butyral flexible material as well as a preparation method and application thereof. The molecular chain regularity is destroyed through an isobutyraldehyde branched chain, the crystallinity is reduced, and the flexibility is improved; cesium-tin co-doped tungsten oxide has high infrared rejection rate and good dispersity, and the influence on the flexibility of the material is reduced; magnesium salicylate and magnesium formate are compounded, so that the reaction activity with resin is reduced, and the bonding stability in the bending process is ensured; the flexibility and migration resistance of the material are synergistically improved through the flexible plasticizer, and the interlayer sheet is prevented from being sticky; the flexible reinforcing agent polycaprolactone micro powder is used for forming an elastic node, bending stress is absorbed, and the recovery performance is improved. The polyvinyl butyral flexible material provided by the invention has flexible bending performance, an efficient infrared barrier function and stable bonding performance, is suitable for scenes such as curved building curtain walls, special-shaped automobile sunroofs or arc-shaped rail traffic windows, and has a wide application prospect.

The invention relates to the technical field of layered composite fabrics, and discloses a light-absorbing and heat-emitting chinlon fabric, a preparation method and application of the light-absorbing and heat-emitting chinlon fabric to thermal fabrics. According to the invention, the fluorine-free and waterproof light-absorbing and heating finishing agent with excellent light-absorbing and heating performance is prepared, then the sulfydryl silane modified chinlon single-layer fabric is subjected to surface finishing by adopting the light-absorbing and heating finishing agent through sulfydryl-alkene click reaction, and the prepared light-absorbing and heating chinlon single-layer fabric is used as the surface layer fabric; the light-absorbing and heating chinlon fabric obtained by compounding the light-absorbing and heating chinlon fabric with the inner layer made of the acrylic fiber / special-shaped section chinlon blended yarn not only has excellent light-absorbing and heating performance, but also has good waterproof performance of the surface layer, good warm-keeping performance of the inner layer and good wearing comfort, and can be applied to warm-keeping fabrics.

The invention relates to a high-precision ultra-long size copper foil die cutting assembly and a production process thereof, the copper foil assembly sequentially comprises a surface insulation film layer, a copper foil layer and a bottom insulation film layer from top to bottom, and the copper foil layer in the copper foil assembly is integrally formed through three times of die cutting of three continuous die cutting roller sets and waste discharging; and a reinforcing insulating film is attached to the outer surface area of the bottom insulating film layer corresponding to the outer end part of the thin and long copper foil strip. The rotary die-cutting machine is adopted for production, the ultra-long copper foil die-cutting assembly (FDC) is segmented according to a specific rule, then a small-size die and a matched splicing type production process are developed and designed, the machining period and machining difficulty of the die can be effectively reduced, the die development and manufacturing cost is reduced, and the production efficiency is improved. Meanwhile, the die damage risk is reduced, and machine adjusting difficulty is lowered; the copper foil material used as the conduction layer in the assembly is expensive and needs precise die cutting, and the staggered layout mode is adopted, so that the waste material area is reduced, and the material utilization rate is improved.

The invention discloses a high-strength heat-insulation aerogel structure with a dual multi-scale design and a preparation method thereof, relates to the technical field of thermal protection of spacecrafts, and in particular relates to the high-strength heat-insulation aerogel structure with the dual multi-scale design and the preparation method thereof. The invention aims to solve the problems of insufficient structural rigidity and poorer thermal protection property and thermal stability of the traditional spacecraft surface aerogel structure under the conditions of extreme high temperature and mechanical load. The structure is composed of an upper carbon-carbon composite material plate, a lower carbon-carbon composite material plate, an alloy skeleton and a filler. The method comprises the following steps: 1, preparing a multi-scale C / C composite material; 2, designing and preparing a titanium alloy honeycomb framework; 3, proportioning the multi-scale aerogel; 4, in-mold in-situ gelation; 5, drying and heat treatment; and 6, assembling and solidifying. The porosity of the aerogel is 85-98%, the structure has high rigidity and thermal protection performance, and the aerogel is applied to the field of aerospace thermal protection.

The invention discloses a composite heat insulation coating structure and method for a high-temperature component of an unmanned aerial vehicle. The structure comprises a heat insulation base material layer made of a high silica glass fiber material and a reflecting layer made of metal foil, and the heat insulation base material layer and the reflecting layer are compounded into a whole. The reflecting layer is used for reflecting heat radiation, and the heat insulation base material layer is used for blocking heat conduction. The problems that a traditional ceramic fiber material is prone to embrittlement and short in service life in a high-temperature vibration environment are effectively solved through a double heat insulation mechanism of reflection-blocking. The coating structure has excellent heat-resistant cyclicity, good flexibility and process adaptability, can perfectly fit special-shaped structures such as a bulkhead and a tail cover of the unmanned aerial vehicle, and remarkably improves the reliability and prolongs the service life of a thermal management system of the unmanned aerial vehicle.

The invention belongs to the technical field of packaging materials, and discloses a high-temperature-resistant heat-seal straw-pluggable easy-to-tear cover and a preparation method thereof.The body comprises a PET layer, a blocking layer and a PE layer which are sequentially compounded from outside to inside, the blocking layer is an AL layer, laser invisible pre-scribed lines are arranged on the easy-to-tear cover, the laser invisible pre-scribed lines only penetrate through the PET layer and the blocking layer and do not penetrate through the PE layer, the thickness of the PET layer ranges from 12 micrometers to 20 micrometers, and the thickness of the PE layer ranges from 12 micrometers to 20 micrometers. The barrier layer is an AL layer, the thickness of the AL layer is 7-12 microns, the thickness of the PE layer is 40-60 microns, and the PET layer is prepared from the following raw materials in parts by weight: 80-95 parts of PET resin, 5-10 parts of composite modified nano silicon dioxide, 3-6 parts of a heat stabilizer and 0.5-2 parts of a lubricant; the composite modified nano silicon dioxide is maleic anhydride grafted polybutadiene composite modified nano silicon dioxide, and the composite modified nano silicon dioxide is uniformly dispersed in a PET matrix by virtue of good compatibility with PET resin, so that the overall toughness and heat sealability of the easy-to-tear cover are remarkably enhanced.

The application provides a composite structure, a shell and an electronic device, the composite structure can be applied to the shell or the electronic device, the composite structure comprises at least one first fiber prepreg, the first fiber prepreg comprises a fiber sheet and a resin wrapping the fiber sheet; the fiber sheet comprises a fiber cloth and a plurality of plating layers on the surface of the fiber cloth, the difference between the refractive indexes of two adjacent plating layers in the plurality of plating layers is greater than or equal to 0.4. In the composite structure provided by the application, the difference in brightness is formed by the difference in refractive indexes between adjacent plating layers, and the appearance of the fiber composite when applied to the shell and the electronic device is improved.

The application relates to a front windshield, a manufacturing method thereof and a vehicle, comprising: an outer layer glass having a first surface and a second surface arranged oppositely; an inner layer glass having a third surface and a fourth surface arranged oppositely; and a thermoplastic intermediate layer arranged between the second surface and the third surface; the front windshield has a first weakened area, the first weakened area is tested according to the adult headform impactor in the standard GB24550, the adult headform impactor impacts the first weakened area to break the first weakened area, and the adult headform impactor impacts the instrument desk after the first weakened area is broken; the adult headform impactor has a first speed V1 when contacting the first surface of the first weakened area, the adult headform impactor has a second speed V2 when the fourth surface of the first weakened area is broken, and V1 and V2 satisfy: V1=11.1+ / -0.2 m / s, and V1-V2=0.3-2.2 m / s. The front windshield, the manufacturing method thereof and the vehicle can effectively reduce the overall injury of a pedestrian and the windshield in a collision.

A sheet separation device includes a sheet separation unit, a displacement detector, a displacement adjuster, and a controller. The sheet separation unit performs a sheet separating operation and a sheet inserting operation. The displacement detector detects a displacement amount of the two-ply sheet when the two-ply sheet is displaced in a width direction of the two-ply sheet and detects a displacement amount of the inner sheet. The displacement adjuster adjusts the displacement of the two-ply sheet in the width direction before the sheet separating operation, based on the displacement amount of the two-ply sheet in the width direction detected by the displacement detector. The controller causes the displacement adjuster to adjust relative positions of the two-ply sheet and the inner sheet between the sheet separating operation and the sheet inserting operation, based on the displacement amount of the inner sheet in the width direction detected by the displacement detector.

The utility model provides a thin film surface patch hot-pressing laminating mechanism. The thin film surface patch hot-pressing laminating mechanism comprises a supporting structure, a hot-pressing device, a driving device, a lifting structure, two buffering devices and a leveling roller, the supporting structure comprises a bearing platform and two first sliding grooves, and the two first sliding grooves are symmetrically formed in the bearing platform. The hot pressing device comprises a first lifting device and a hot pressing plate, and the hot pressing plate is fixedly mounted at the output end of the first lifting device; the two buffer devices are symmetrically mounted at the output end of the lifting structure; and the leveling roller is rotationally mounted between the two buffer devices. According to the thin film surface pasting hot-pressing pasting mechanism, after the flattening roller is moved to the position above a thin film, pressure applied to the second lifting device is buffered through the elastic piece, the flattening roller is driven by the motor to roll on the thin film, the thin film is flattened, meanwhile, air between the thin film and a workpiece is extruded and exhausted, and therefore the thin film surface pasting effect is achieved. And the influence on the subsequent process is avoided.

The invention relates to a filter screen and a preparation method and application thereof, and belongs to the technical field of filtering equipment, the filter screen comprises a hydrophobic enhancement layer, a pre-filtering layer and a core filtering layer which are stacked in sequence; the hydrophobic reinforcing layer comprises the following components: metal fibers; the pre-filtering layer is prepared from the following components: basalt fibers; and the core filter layer comprises the following components: polytetrafluoroethylene fibers and polyether-ether-ketone fibers. By designing the structure of the filter screen, the filter screen which can stably work in a high-temperature environment, has excellent hydrophobic performance and filtering efficiency and is controllable in manufacturing cost is obtained.

Embodiments described include adhesive bus bars for electrochromic or other optical state changing devices. The bus bars are configured to color match and / or provide minimal optical contrast with their surrounding environment in the optical device, provide better adhesion than ink based bus bars, as well as obviate the need to mitigate defects in underlaying layers.

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

The present disclosure discloses a film-sticking device, which includes a positioning box body. A placement slot is formed in the positioning box body and a positioning frame that is movably arranged on the positioning box body. A roller assembly is slidably arranged on the positioning box body. The positioning frame includes a rectangular positioning plate that is movably arranged on the positioning box body. A rectangular positioning opening corresponding to the placement slot is formed in a middle of the positioning plate. By movably arranging the rotatable positioning frame on the positioning box body, the film-sticking assembly can be mounted on the positioning frame; since the positioning frame is aligned with the placement slot, the film-sticking assembly can be conveniently and quickly aligned with a screen of an electronic device without manually adjusting the film-sticking assembly.

A pickleball paddle with a core including a first portion and a second portion. The first portion may define a first width between a first lateral side and a second lateral side of the paddle. The second portion may define a second width between the lateral sides of the paddle.The paddle generally includes the core and a frame attached to the core. The core includes a first portion attached to the frame and a second portion positioned in the unframed portion. The frame defines a framed portion including the frame and the portions of the paddle between the frame. An unframed portion includes the remainder of the paddle. The first portion defines a first width less than a second width defined by the second portion. The core accommodates the frame around the first portion having the smaller width to promote a continuous transition between the framed and unframed portions.

The invention discloses a full-automatic vehicle film laminating machine and a hot-pressing compounding process thereof, and aims to improve the production efficiency of a vehicle film and the adhesive force of a film layer. The laminating machine comprises an electrostatic spraying chamber and a hot pressing chamber, and efficient compounding of membrane materials is achieved through the synergistic effect of the electrostatic spraying chamber and the hot pressing chamber; a film material is automatically fed into a laminating machine through an upper-layer film leading-in roller and a base material film leading-in roller, after the film material enters an electrostatic spraying chamber, the surface of the film material is subjected to corona treatment, and a nano coating solution is uniformly sprayed on the surface of an upper-layer film through an atomizer; meanwhile, redundant charged particles on the surface of the substrate film are collected through an electrostatic collection plate; the sprayed membrane material enters a hot-pressing chamber, and is heated and pressurized under the action of a hot-pressing roller, so that the two layers of membranes are tightly combined, and the high bonding strength between the membrane layers is ensured; and finally, the finished product film material is wound through a finished product storage roller, and a high-quality vehicle film product is formed.

The invention relates to the technical field of preparation of high-moisture-absorption warm-keeping anti-wrinkle flexible cloth, in particular to high-moisture-absorption warm-keeping anti-wrinkle flexible cloth and a preparation process thereof.According to the designed moisture-absorption skin-friendly layer, alkali decrement treatment and silane coupling agent grafting treatment are combined, and the natural antibacterial property of coffee grounds is reserved; the shape memory polymer fibers of the anti-wrinkle layer deform when the temperature is larger than or equal to the glass transition temperature, the shape is fixed after cooling, a nanometer adhesive is melted in the hot pressing process to fill gaps of a framework, and the elastic recovery rate after repeated folding is far higher than 85%. The high porosity and low heat conductivity coefficient of aerogel fibers of the warm-keeping layer are combined with the heat storage and temperature regulation functions of phase change microcapsules, so that the air permeability of the warm-keeping layer is remarkably improved; all the layers are chemically bonded through plasmas to form covalent bond combination, so that the phenomenon of layering after multiple times of water washing or bending is effectively avoided.

The invention discloses a polyethylene composite geomembrane and a processing technology thereof in the field of geosynthetic materials. The polyethylene composite geomembrane is prepared from the following raw materials: high-density polyethylene, polyethylene grafted maleic anhydride, a nano montmorillonite / low-density polyethylene composite modifier, an antioxidant, a light stabilizer and a lubricant calcium stearate. Wherein the polyethylene grafted maleic anhydride is prepared by drying high-density polyethylene, mixing the dried high-density polyethylene with maleic anhydride, an initiator and an antioxidant, and performing melt extrusion through a double-screw extruder, so that the surface polarity is improved; the nano-montmorillonite / low-density polyethylene composite modifier is prepared by ultrasonically dispersing Na-montmorillonite, adding hexadecyl trimethyl ammonium bromide, stirring, centrifugally drying to obtain organic modified montmorillonite, mixing the organic modified montmorillonite with low-density polyethylene, performing intercalation reaction, and performing twin-screw extrusion and blending, so that the barrier property is enhanced. The processing technology comprises the steps of raw material mixing, twin-screw extrusion granulation and calendaring molding, and finally the polyethylene composite geomembrane with remarkably improved interface cohesiveness, weather resistance and barrier property is prepared.

The invention discloses a graphene film / copper hot-pressing composite directional high-thermal-conductivity material as well as a preparation method and application of the graphene film / copper hot-pressing composite directional high-thermal-conductivity material. The preparation method comprises the following steps: punching a graphene film to form a plurality of hole structures; blade-coating copper paste on the surface to form a liquid film; the copper paste comprises copper powder, a coupling agent and an organic phase; stacking a plurality of layers; carrying out hot pressing treatment on the circulating laminated structure; and slicing to obtain the graphene film / copper hot-pressing composite oriented high-thermal-conductivity material. When copper powder particles are embedded into the hole structure, the whole hole structure is filled with the copper powder particles, the copper powder particles can transversely enter gaps between graphene sheet layers, a three-dimensional interlocking structure is formed through the sintering effect, resin contained in the copper paste can be subjected to a carbonization reaction in the glue discharging stage, a carbon skeleton is formed, and therefore the three-dimensional interlocking structure is formed. And the infiltration process between the copper powder and the graphene sheet layer is facilitated, and finally the heat conduction performance and the mechanical performance of the graphene film / copper hot-pressing composite oriented high-heat-conduction material are remarkably improved.

The invention discloses a soft shell jacket composite fabric and a preparation method thereof, and aims at solving the problem that an existing soft shell jacket fabric is poor in waterproof performance. According to the technical scheme, the fabric is characterized by comprising a waterproof layer, a warm-keeping layer and a skin-friendly layer which are sequentially arranged from top to bottom, and the skin-friendly layer is prepared from, by weight, 40-60 parts of cotton fibers, 10-15 parts of milk protein fibers, 10-25 parts of bamboo pulp fibers and 20-45 parts of antibacterial fibers; the surface of the waterproof layer is coated with a waterproof finishing agent, and a waterproof film layer is fixedly bonded to the surface of the waterproof layer. The waterproof performance of the fabric is enhanced by arranging the waterproof layer, the warm-keeping effect and comfort of the fabric can be considered by arranging the warm-keeping layer and the skin-friendly layer, the fabric is more comfortable to wear, and outdoor requirements under more conditions are met.

The invention discloses a fiber-reinforced thermoplastic resin-based composite material based on dynamic reversible interface interaction and a preparation method and a recycling method thereof. The fiber-reinforced thermoplastic resin-based composite material comprises a modified thermoplastic resin matrix and a modified fiber reinforcement which are compounded with each other, the modified thermoplastic resin matrix and the modified fiber reinforcement are bonded and connected through dynamic bonds with dynamic reversible interface interaction. Through construction of dynamic reversible interface interaction in the fiber-reinforced thermoplastic resin-based composite material, infiltration compounding and interface bonding between a fiber reinforcement and a high-viscosity thermoplastic resin melt can be enhanced, and interface debonding and total-value recycling of the fiber reinforcement in the composite material recycling process can be effectively promoted; therefore, the bottleneck problems of poor wettability in the forming process, low bonding fastness at a heterogeneous interface, insufficient mechanical properties, low waste recovery value and the like confronted by the development of the fiber-reinforced thermoplastic composite material are effectively solved.

A system and methods for manufacturing a dry electrode for an energy storage device are disclosed. The system includes a first dry electrode material delivery system configured to deliver a dry electrode material, a first calendering roll, a second calendering roll, and a controller. The second calendering roll is configured to form a first nip between the first calendering roll and the second calendering roll. The first nip is configured to receive the dry electrode material from the first dry electrode material delivery system, and form a dry electrode film from the dry electrode material. The controller is configured to control a rotational velocity of the second calendering roll to be greater than a rotational velocity of the first calendering roll. The method may include providing a multi-roll calender system comprising a first calender roll, a second calender roll; rotating the first calendering roll at a first rotational velocity; rotating the second calendering roll at a second rotational velocity; providing a first dry electrode material to a first nip between the first calendering roll and the second calendering roll to form a dry electrode film. The second rotational velocity may be greater than the first rotational velocity.