14148results about "Lamination apparatus" patented technology

A paddle includes a core and at least one metallic lattice structure coupled to the core.

Provided is a coating die enabling coating of two layers of coating films stably. The coating die includes: a first block including a first manifold to receive a first coating liquid; a second block including a second manifold to receive a second coating liquid; and a shim sandwiched between the first block and the second block.

The invention discloses a 3D printing layered honeycomb sandwich panel and a processing method thereof. The processing method comprises the steps that a digital forming platform is constructed, process parameters are initialized, a functional interface layer is laid on a printing substrate in advance, a three-dimensional model is generated, and the printing substrate is divided into a plurality of gradient areas; collaborative printing of a lower panel structure is executed, and a composite panel base body is formed by adopting a multi-nozzle alternate deposition process; according to the characteristics of the divided gradient areas, honeycomb units are formed layer by layer by dynamically controlling printing rheological parameters, and a gradient honeycomb core layer is constructed; the cooperative growth of the upper panel and the gradient honeycomb core layer is realized by adopting a rotary incongruous printing strategy; the performance of the core layer material is regulated and controlled through a multi-stage heat treatment process, and the functional interface layer is activated to obtain the honeycomb sandwich panel; according to the honeycomb sandwich board, the mechanical property customized distribution of the honeycomb core layer is realized, the surface-core interface bonding strength is improved by combining the directional activation mechanism of the micro interlocking structure and the functional interface layer, and the honeycomb sandwich board with high mechanical property and thermal stability is provided.

The present disclosure provides embodiments of a method a reinforced porcelain panel product for renovations or new constructions. In an embodiment, a method includes applying an adhesive to a top surface of a structural core board that includes a foam-core material. Further, the method continues with abuttingly contacting the structural core board to a bottom surface of a porcelain slab with the adhesive such that regions of the structural core board substantially extend beyond outer peripheries of the porcelain slab to define buffer regions, thereby to allow the buffer regions to be visible and to enhance protection from cracking when the reinforced porcelain panel product is handled. Additional features include the bottom surface of the structural core board having a second surface area larger than the first surface area of the porcelain slab and a fracture toughness greater than the porcelain slab.

The present disclosure provides embodiments of a method a reinforced porcelain panel product for renovations or new constructions. In an embodiment, a method includes applying an adhesive to a top surface of a structural core board that includes a foam-core material. Further, the method continues with abuttingly contacting the structural core board to a bottom surface of a porcelain slab with the adhesive such that regions of the structural core board substantially extend beyond outer peripheries of the porcelain slab to define buffer regions, thereby to allow the buffer regions to be visible and to enhance protection from cracking when the reinforced porcelain panel product is handled. Additional features include the bottom surface of the structural core board having a second surface area larger than the first surface area of the porcelain slab and a fracture toughness greater than the porcelain slab.

The present invention is used in the technical field of functional textile materials. Disclosed are a composite fiber-based protective material, and a preparation method therefor and the use thereof. The composite fiber-based protective material comprises a unidirectional moisture-guiding fiber membrane, a bacteriostatic sweat-absorbing layer and a waterproof moisture-permeable membrane, which are sequentially stacked, wherein the unidirectional moisture-guiding fiber membrane comprises a hydrophobic fiber membrane and a hydrophilic fiber membrane sandwiched between the hydrophobic fiber membrane and the bacteriostatic sweat-absorbing layer, and the average pore size of the hydrophobic fiber membrane is larger than the average pore size of the hydrophilic fiber membrane. The average pore size of the hydrophobic fiber membrane is 10-18 μm; and the average pore size of the hydrophilic fiber membrane is 1.0-2.3 μm. The composite fiber-based protective material is prepared from the unidirectional moisture-guiding fiber membrane, the bacteriostatic sweat-absorbing layer and the waterproof moisture-permeable membrane by means of a lamination process. In addition to waterproofness and moisture penetrability, the composite fiber-based protective material also has biodegradability and a bacteriostatic effect.

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

The utility model provides a laminated glass flat pressing machine, which relates to the technical field of glass flat pressing equipment, and comprises a fixed plate, four ends of the bottom of the fixed plate are provided with support columns, the fixed plate is internally provided with a fixed groove, the fixed groove is internally provided with a clamping device, two ends of two sides of the fixed plate are provided with connecting plates, and the two ends of the fixed plate are respectively provided with a clamping device. The four connecting plates are equally divided into two groups, first guide rods are installed on the opposite faces of the two groups of connecting plates, the surfaces of the two first guide rods are movably sleeved with moving frames, moving grooves are formed in the inner sides of the moving frames, and rolling devices are arranged in the moving grooves. According to the laminated glass flattening device, the limiting groove, the first forward and reverse motor and the second forward and reverse motor are electrically connected with the external controller, and laminated glass needing to be flattened is placed on the top of the fixing plate; the first forward and reverse motor is started through an external controller to drive the two-way threaded rod to rotate, and meanwhile the movable rod is driven to move in the direction opposite to or opposite to the direction of the second guide rod.

Disclosed is a film sticking device. The film sticking device includes an upper cover, a base and an inner tray, the upper cover is movably connected to a side of the upper cover; the inner tray includes a chassis and a limiting frame provided at the chassis, the limiting frame encloses a receiving groove on the chassis, an inner wall of the limiting frame is provided with a limiting step configured for installing a screen protection film, a positioning notch and a pulling notch are respectively provided at two opposite sides of the limiting frame; and the inner tray is detachably installed at the base, and the upper cover is configured to cover the receiving groove.

Disclosed is a coreless roll of a tissue paper product having a first end and a second end, and a web of tissue paper product being wound such as to define a central inner hole with the first end located on the outer side and the second end located at the inner hole, the product including a bonded first ply and a second ply, a grammage of the product being 35 to 55 g / m2, and having a Geometric Mean Tensile strength of at least 200 N / m, the first ply and the second ply being made of Conventional Wet Press (CWP) paper and embossed to be nested, the coreless roll having an outer diameter of 95 to 150 mm, an inner hole diameter of 20 to 50 mm, and a density of the coreless roll of 70 to 90 kg / m3, a caliper ratio of the roll of 40% to 70%.

The invention discloses an INS film with excellent comprehensive performance, which comprises a surface protection layer, an upper base material layer, a printing ink layer, a bonding glue layer and a lower base material layer which are sequentially superposed from top to bottom, the surface protection layer is prepared from the following raw materials in parts by weight: 75-135 parts of polyester polyol resin, 30-60 parts of hydroxy acrylic resin, 2-25 parts of an isocyanate curing agent, 2-17 parts of a closed curing agent, 2-25 parts of a chain extender, 0.5-8 parts of a catalyst, 0.5-2 parts of an antioxidant and 0.5-3 parts of an ultraviolet light absorber. According to the surface protection layer of the INS film, the high-temperature condition of a high-temperature plastic uptake procedure of the INS film in preparation of INS parts is well utilized, so that the closed curing agent is effectively excited to perform secondary cross-linking curing reaction. The INS film is good in surface chemical reagent resistance, has the characteristics of high heat stretch rate, high hardness and scratch resistance, has excellent ultraviolet irradiation yellowing resistance, and is particularly suitable for the field of in-mold decoration.

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 technical field of needled felt acoustic panels, in particular to a PET needled felt acoustic panel and a preparation process thereof, and solves the defects in the prior art. The PET needled felt acoustic panel comprises a gradient impedance matching layer, a sound energy conversion layer and a dynamic tuning layer; interface molecular chain entanglement of the three-layer structure is achieved through a hot pressing process, and continuous transition of acoustic impedance from 2.5 * 10 < 6 > ray l to 8 * 10 < 5 > ray l is formed. According to the method, through staged structure prefabrication and physical field auxiliary forming, precise interface control of a multi-material system is achieved. All the functional layers are orderly integrated after being independently prepared, and structural damage caused by direct mixing is avoided. Especially, the broadband sound absorption performance of the product is remarkably improved through the regional processing strategy of the gradient layer and the nanometer framework construction technology of the sound energy layer.

Disclosed is a coreless roll of a tissue paper product having a first end and a second end, and a web of tissue paper product being wound such as to define a central inner hole with the first end located on the outer side and the second end located at the inner hole, the product including a bonded first ply and a second ply, a grammage of the product being 35 to 55 g / m2, and having a Geometric Mean Tensile strength of at least 200 N / m, the first ply and the second ply being made of Conventional Wet Press (CWP) paper and embossed to be nested, the coreless roll having an outer diameter of 95 to 150 mm, an inner hole diameter of 20 to 50 mm, and a density of the coreless roll of 70 to 90 kg / m3, a caliper ratio of the roll of 40% to 70%.

A method of manufacturing an absorbent core for a disposable absorbent hygiene article includes providing a first core cover web and at least one pleat in the first core cover web; applying an adhesive to the pleated first core cover web; bringing the pleated first core cover web into conformance with a recess, the recess including at least one channel-forming element arranged on a bottom surface of the recess and causing the pleat to at least partially unfold at the channel-forming element; applying absorbent material on the first core cover web in the recess; applying an adhesive on a second core cover web; applying the second core cover web to the first core cover web; forming an absorbent laminate by pressing together the second and first core cover webs; and forming individual absorbent cores by severing the absorbent laminate. An absorbent core and an absorbent article including the absorbent core are also disclosed.

The invention relates to a heat-conducting MXene film with ultrahigh anisotropy and a preparation method of the heat-conducting MXene film. The ultrahigh-anisotropy heat-conducting MXene film is an MXene / MMT composite film and is formed by alternately stacking a plurality of MXene layers and a plurality of MMT layers. The MXene and MMT nanosheets in the alternating layered structure are highly and regularly oriented along the plane direction, so that excellent anisotropic heat-conducting property can be effectively realized. As a heat diffuser of a high-performance electronic device, the film has more excellent cooling efficiency than a traditional commercial heat-conducting film.

According to the high-compression-resilience thermal interface material and the preparation method thereof, high-thermal-conductivity fibers and elastic macromolecules are introduced between graphene sheets which are arranged in an oriented mode, and the graphene sheets form a bent structure on the surfaces of the fibers under the action of pressure; graphene and high-heat-conduction fibers are firmly combined through elastic macromolecules, the compression resilience capacity is improved, physical crosslinking is formed between bent graphene sheets through pi-pi conjugation, and therefore the material with a heat conduction framework and an elastic microstructure is constructed. And then cutting along the direction perpendicular to the graphene sheets to obtain the interface material containing the bent graphene sheets and the high-thermal-conductivity fibers, so that the material has high vertical thermal conductivity, high horizontal thermal conductivity and high compression ratio.

The present disclosure provides embodiments of a method a reinforced porcelain panel product for renovations or new constructions. In an embodiment, a method includes applying an adhesive to a top surface of a structural core board that includes a foam-core material. Further, the method continues with abuttingly contacting the structural core board to a bottom surface of a porcelain slab with the adhesive such that regions of the structural core board substantially extend beyond outer peripheries of the porcelain slab to define buffer regions, thereby to allow the buffer regions to be visible and to enhance protection from cracking when the reinforced porcelain panel product is handled. Additional features include the bottom surface of the structural core board having a second surface area larger than the first surface area of the porcelain slab and a fracture toughness greater than the porcelain slab.

A method 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 invention belongs to the technical field of personal protection equipment, and particularly relates to a lightweight cut-resistant four-dimensional structure fabric based on high-performance composite fibers and a preparation method of the lightweight cut-resistant four-dimensional structure fabric. The structure is based on a high-performance composite fiber material and a nano silicon carbide embedding technology of high-performance polyethylene fibers, the hardness bottleneck of a single material is broken through, and multi-fiber compatibility is improved through cooperation of polyurethane fiber surface activation and polyurethane fiber anti-melting modification. The gradient twist core sheath yarn is a high-performance composite yarn, and the strength and the flexibility are balanced. In the aspect of the oversleeve fabric structure, a three-dimensional protection system comprising a honeycomb structure, a silica gel liner and a skin-friendly inner layer is adopted, so that the integration of multiple functions of hydrophobicity, fusion resistance and buffering of a light-weight cut-resistant material is realized. Under the EN 388 standard, 5-level cutting prevention can be achieved, a single high-performance polyethylene fiber cutting prevention oversleeve can only reach 3-4 levels, the weight of the composite fiber material is reduced by 40% compared with that of a full aramid fiber oversleeve, the thickness is reduced by 25%, and the composite fiber material can be suitable for complex scenes such as petroleum and electric power.

A composite radiative cooling material includes a first layer including a reflective material, a second layer including a porous material, and a third layer including an emissive material. The optical properties of the respective materials and the arrangement of the respective layers cause the radiative cooling material to exhibit a total solar reflectance greater than 85%, and a thermal emissivity greater than 85% in a wavelength range of 8 to 13 μm. The layers may be in a vertically stacked arrangement, with the third layer capable of directly facing the sky when the composite radiative cooling material is installed for cooling a load, the second layer arranged under the third layer, and the first layer arranged under the second layer. The composite radiative cooling material may be thermally coupled to a cooling load to provide radiative cooling to the cooling load.

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 provides a multi-layer composite structure, a preparation method, a battery cover and electronic equipment, the multi-layer composite structure is formed by a plurality of stacked fiber layers, each fiber layer is formed by dipping a fiber sheet in a pre-polymerized glue solution and then curing the fiber sheet, the fiber sheet in at least one fiber layer adopts poly (p-phenylene benzobisoxazole) fiber, and the fiber sheet in the at least one fiber layer is made of a poly (p-phenylene benzobisoxazole) fiber. The PBO fiber is prepared from the PBO fiber. Therefore, the multi-layer composite structure has higher strength and modulus, energy is absorbed and dispersed when the multi-layer composite structure is impacted, the reliability of the multi-layer composite structure is not influenced when the multi-layer composite structure is impacted on the basis of thinning and weight reduction, and the battery cover formed by the multi-layer composite structure has better anti-puncture performance.

The invention discloses spherical silicon dioxide, a high-frequency high-speed copper-clad plate and a preparation method of the spherical silicon dioxide. The dielectric constant Dk of the spherical silicon dioxide is 3.5 F / m-4. 0F / m, the dielectric loss Df is 0.0001-0.005, the amorphous state proportion is larger than or equal to 99%, the spheroidization rate is larger than or equal to 99%, and the porosity is 0.1%-2%. During preparation, the hydrolysis degree is controlled till partial polycondensation is achieved, then under the oxygen introduction condition, pre-oxidation is conducted at the low temperature to remove alkyl, gradient calcination is conducted at the high temperature, local crystallization influence and defect influence caused by powder spontaneous combustion are prevented, meanwhile, viscous bodies in the microspheres are accurately controlled to flow to fill nanoscale pores, and the particle size is reduced. The spherical silicon dioxide with high purity, high spheroidization rate and low dielectric loss is obtained, the dielectric property of the high-frequency and high-speed copper-clad plate can be met, and the high thermal stability and high reliability of the high-frequency and high-speed copper-clad plate are improved.

The invention relates to the technical field of spandex fabrics, in particular to a flame-retardant spandex fabric and a preparation method thereof.The flame-retardant spandex fabric comprises a spandex base layer, inner layers are fixedly arranged on the upper surface and the lower surface of the spandex base layer, and improved layers are fixedly arranged on the outer surfaces, away from the spandex base layer, of the inner layers; the spandex base body layer is formed by weaving elastic fibers, and the elastic fibers comprise spandex fiber lines. According to the flame-retardant spandex fabric, the spandex base body layer is matched with the inner layer and the improved layer to form the flame-retardant spandex fabric, the spandex base body layer is formed by spirally winding the glass fiber threads and the hemp fiber threads on the outer walls of the spandex fiber threads, and the elastic performance of a product is optimized.

The invention relates to a double-layer preservative film for prolonging the shelf life of frozen beef and mutton after unfreezing and a preparation method of the double-layer preservative film. According to the preparation method of the angelica dahurica extract-gliadin nano-particles, the angelica dahurica extract-gliadin nano-particles can be used for preparing a double-layer preservative film, and the preservative film is a natural component and is environmentally friendly and safe. The preservative film is of a double-layer structure, the mechanical performance is enhanced through the double-layer film structure, and meanwhile the preservative film has excellent oxygen and water vapor barrier performance and an antibacterial effect. According to the preservative film disclosed by the invention, slow release of active ingredients is realized by utilizing the Pycnogenin-gliadin nanoparticles, so that the antioxidant and antibacterial effects are remarkably improved, and the quality guarantee period of meat is prolonged. In addition, the preservative film does not need to be in direct contact with food in practical application, potential safety hazards of the food are further reduced, the operation process is simplified, pollution is avoided, a user can conveniently use the preservative film, the preservative film has the advantages of efficient preservation and environmental protection, and the preservative film has good application prospects and value.

The invention provides a manufacturing process of high-heat-insulation ray-proof antibacterial glass. The high-heat-insulation ray-proof antibacterial glass comprises outer-layer glass, a middle functional layer, inner-layer glass and an extensible layer, the manufacturing process comprises a PVB adhesive film preparation process and a laminated glass whole process, wherein the PVB adhesive film preparation process specifically comprises the steps of raw material mixing, melt extrusion, tape casting and coiling; the whole process of the laminated glass comprises the steps of glass pretreatment, interlayer assembly, high-temperature and high-pressure forming and post-treatment and quality inspection. According to the design scheme of the multi-film composite laminated glass, based on the structural characteristics of the laminated glass, a layered ray-blocking customized glass scheme is provided in combination with the combination of heat-insulating PVB films and other films with different functions, and the scheme is suitable for scenes such as sunlight rooms, agricultural planting or market curtain walls and the like.

The invention discloses special glass fiber cloth and a preparation process thereof, relates to the technical field of special materials, and solves the problems that the special glass fiber cloth in the prior art is easy to break or damage when being stressed or used, the material performance is difficult to meet the requirements of some special working environments, and the service life is limited. The glass fiber cloth comprises a corrosion-resistant protective surface layer, a fiber reinforced layer, a flame-retardant insulating layer, a bonding matrix layer and a stable bottom layer which are sequentially connected from outside to inside; the preparation process comprises the following steps: S100, fiber pretreatment; s200, forming a fiber reinforced layer; s300, preparing a corrosion-resistant protective surface layer; s400, preparing a flame-retardant insulating layer; s500, composite treatment of a stable bottom layer; s600, coating of the bonding base body layer is carried out; s700, laminating and curing are carried out; and S800, post-treatment is carried out. The special glass fiber cloth material composition and the production and preparation process thereof have the characteristic that the glass fiber cloth is not easy to break.

The invention discloses a copper-clad plate as well as a middle layer and a preparation method and application thereof, and belongs to the technical field of copper-clad plates. The preparation method of the intermediate layer for the copper-clad plate comprises the following steps: orthogonally weaving PBO fibers and glass fibers to obtain blend fibers; the mass ratio of the PBO fibers to the glass fibers is (10: 90)-(60: 40); carrying out modification treatment on the blend fibers to obtain modified blend fibers; dipping the modified blend fiber in a resin-containing dipping solution; and drying the impregnated modified blend fiber. The preparation method is simple and easy to operate, the PBO fibers and the glass fibers are orthogonally woven according to a specific ratio, so that on one hand, the blend fibers have the advantages of the PBO fibers and the glass fibers, on the other hand, the anisotropy of the blend fibers is effectively optimized, and the obtained copper-clad plate has relatively low dielectric loss and expansion coefficient; the peeling strength, the heat resistance and the flexibility are better.

The invention discloses a production process of tempered laminated glass, which belongs to the technical field of tempered glass, and comprises the following steps: strictly screening raw sheets, carrying out three-zone gradient tempering, namely, mutually combining 680-700 DEG C temperature zone temperature control and 8-12kPa gradient wind pressure quenching, and precisely compounding by using a PVB interlayer to obtain the tempered laminated glass. 23 DEG C / 30% RH pre-balancing, 0.5 mm vacuum positioning and 120-140 DEG C rolling initial pressing are combined, and then high-pressure kettle staged curing, namely, the process of heat preservation for 120 minutes at 1.2 MPa / 135 DEG C and the process of gradient cooling at the temperature smaller than or equal to 15 DEG C / h are combined, so that the finally prepared tempered glass product has high optical performance, namely distortion smaller than or equal to 0.1 mm / mm, high impact resistance, namely no penetration in 1m steel ball falling and excellent weather resistance; degumming is avoided in the environment of 85 DEG C / 85% RH / 500 h, and accurate control over the whole process from materials to finished products is achieved. Therefore, the production process of the tempered laminated glass solves the technical problem of how to improve the production efficiency of the tempered laminated glass.