15results about How to "Not easy to layer" patented technology

The invention belongs to the technical field of chemistry, and particularly relates to a water-based stable transdermal preparation based on a structural nanoemulsion and a preparation method of the water-based stable transdermal preparation. 1% to 10% of a polyether block copolymer; 5%-20% of a co-emulsion; 0.1% to 15% of an active ingredient; and the balance of deionized water. Through a compounding system of an amino acid surfactant and a gemini surfactant and in combination with the synergistic effect of a specific polyether block copolymer, a nanoemulsion drug delivery system with a stable structure is constructed. Through a compound system of the amino acid surfactant and the gemini surfactant and by combining the synergistic effect of the polyether block copolymer, a nano-emulsion drug delivery system with a stable structure is constructed, and the nano-emulsion drug delivery system has good long-term storage stability and temperature adaptability, is not easy to layer and is uniform in particle size distribution.

The application provides an oil-based multi-walled carbon nanotube slurry as well as a preparation method and application thereof. The oil-based multi-walled carbon nanotube slurry comprises 1-23% by mass fraction of multi-walled carbon nanotubes, 0.1-5% by mass fraction of sodium 4-styrenesulfonate, 0.5-35% by mass fraction of polyvinylidene fluoride and 57-98.4% by mass fraction of N-methylpyrrolidine. The multi-walled carbon nanotubes in the oil-based slurry are uniformly dispersed, and the multi-walled carbon nanotubes exist in a monodisperse form and are not prone to agglomeration. The oil-based multi-walled carbon nanotube slurry has stable physical and chemical properties, can be stored for a long time and is not prone to stratification. The oil-based slurry can be directly used in the homogenization process of the oil-based slurry, the multi-walled carbon nanotubes in the pole piece prepared after coating are uniformly distributed, the preparation process of the oil-based slurry is simple, the system temperature in the preparation process is constant and controllable, and the oil-based slurry can be prepared and applied on a large scale.

The present application relates to the technical field of gasket processing, and particularly relates to a gasket processing method, a gasket processing device and a gasket. First, the gap size of a target installation position of a gasket is measured, and then the preset thickness and the number of layers of a unit gasket to be processed are determined according to the maximum value of the gap size along the thickness direction of the gasket. The processing parameters of each layer of the unit gasket are obtained through a control module. The unit gaskets are stacked and bonded with each other and have the preset thickness. The material is simple and can meet the processing of different gaskets. The stepped gasket is processed according to layers to fit the non-flat gap and improve the cutting efficiency. The gasket to be processed is placed on a processing platform. The cutting module moves in the vertical direction with an integer multiple of the preset thickness as a moving unit, reduces the influence of the interlayer force on the gasket processing, and is in communication connection with the control module. After receiving and cutting each layer of the unit gasket of the gasket to be processed according to the processing parameters, the gasket to be processed is peeled to obtain the required gasket. The processing procedure is simple and has low difficulty, and the gasket quality is effectively improved.

This invention discloses a hydrophilic organosilicon finishing agent and its preparation method, belonging to the field of textile auxiliaries technology. The finishing agent is prepared by compounding polyurethane-modified silicone oil and amide-modified polyether silicone oil at a mass ratio of 1:1~2, followed by emulsification with an emulsifier. The polyurethane-modified silicone oil is obtained by polymerizing a blocked polyurethane prepolymer with terminal epoxy polyether silicone oil and block silicone oil; the amide-modified polyether silicone oil is obtained by amidation reaction of terminal epoxy polyether silicone oil and polyether amine in the presence of organic acid. This invention, through the synergistic effect of the two-component compound, provides skeletal support and elastic recovery through polyurethane segments and a hydrophilic surface layer through amide groups, effectively solving the problem of balancing hand feel and hydrophilicity in nylon-spandex fabrics. The finished fabric hand feel rating can reach level 4 or higher, water droplet diffusion time can be as low as 0.9s, the emulsion has good stability, and it is not prone to oil drift, significantly superior to similar products on the market.

The utility model discloses a decorative sheet with a bridging surface and a shoe, which comprise a decorative sheet substrate layer made of silica gel, and a front bridging surface layer and a back bridging surface layer are respectively and fixedly compounded on the front surface and the back surface of the decorative sheet substrate layer; the back bridging surface layer comprises a first bridging surface layer and a first substrate layer which are compounded, the front bridging surface layer comprises a decorative layer and a second substrate layer which are compounded, and both the first substrate layer and the second substrate layer are base cloth layers with microporous permeable structures; the front face and the back face of the decoration piece base body layer are integrally formed with the second base layer and the first base layer respectively, and the back face and the front face of the decoration piece base body layer in the molten state are infiltrated and permeated into micropore gaps of the first base layer and the second base layer respectively and solidified. And respectively fixing the first substrate layer and the second substrate layer on the back surface and the front surface of the decorative sheet substrate layer. The decorative sheet has the advantages of environmental protection, low cost, high adhesiveness, tear resistance, diversified surface texture and the like, and can be used as a decorative accessory of clothes, shoes and hats.

This utility model relates to the field of textile fabrics, and more particularly to a green and environmentally friendly fabric, comprising a reinforcing surface layer and an environmentally friendly base layer. A heat-melting yarn is disposed between the reinforcing surface layer and the environmentally friendly base layer. The environmentally friendly base layer is made of regenerated cellulose fibers. The top and bottom ends of the heat-melting yarn are fixedly connected to the reinforcing surface layer and the environmentally friendly base layer, respectively. The heat-melting yarn is woven from heat-melting fibers. The reinforcing surface layer is woven from fiber bundles, which include tensile fibers, flame-retardant fibers, absorbent fibers, polyester fibers, and corrosion-resistant fibers. The tensile fibers, flame-retardant fibers, absorbent fibers, polyester fibers, and corrosion-resistant fibers are bundled together to form a tight structure. This invention solves the technical problems of insufficient environmental performance and functionality in traditional fabrics.

This invention belongs to the field of electromagnetic materials technology, and discloses a composite microwave absorbing material with a cross-dimensional interpenetrating interface, its preparation method, and its applications. The material comprises, in its thickness direction, a loose fibrous layer, a dense conductive carbon layer, and electromagnetic functional particles anchored to the inner walls of pores, the surface of the layers, and / or the interlayer gaps. The roots of the fibrous carbon extend into and are anchored to the pores and / or interlayer gaps of the framework, forming a cross-dimensional interpenetrating interface to achieve continuous conductive connections and / or local fusion connections. The electromagnetic functional particles are in close contact with the carbon framework, providing magnetic loss and / or dielectric loss. The preparation method includes: employing a stepwise energy beam-induced carbonization strategy on the first and second carbonizable precursor layers to induce the generation of fibrous carbon and in-situ carbonization of the infiltrated portions, achieving interpenetrating anchoring and particle conversion anchoring. This material is suitable for low-frequency absorption-dominant electromagnetic shielding, microwave absorbing patches, and flexible electronic devices.

The invention relates to the technical field of coal dressing equipment, in particular to flotation coal dressing equipment which comprises a flotation machine body, a stirring and foaming assembly, a clean coal collecting assembly and a flow pushing assembly. The flotation machine body is placed on the ground, and one side of the flotation machine body communicates with a coal slurry feeding pipe and a water adding pipe. A clean coal collecting box is fixedly arranged on one side of the flotation machine body, and the bottom end of the clean coal collecting box communicates with a clean coal discharging pipe. The bottom of the flotation machine body communicates with a tailing discharging pipe. The stirring and foaming assembly is located on the flotation machine body and used for injecting bubbles into the flotation machine body and stirring the bubbles. The clean coal collecting assembly is located on the flotation machine body and used for scraping bubbles attached to clean coal at the top of the flotation machine body into the clean coal collecting box. The flow pushing assembly is located on the flotation machine body and used for pushing bubbles, away from the clean coal collecting assembly, of the flotation machine body to be close to the clean coal collecting assembly. The device has the effect that the bubble scraping device is easy to collect gas bubbles.

The application provides a device for reducing welding marks in an alumina ceramic crucible, which comprises a cylindrical outer mold with a hollow structure, an inner mold arranged on the inner side of the outer mold, a cylindrical closed forming cavity arranged between the inner mold and the outer mold, a base jointed to the bottom of the outer mold, two second grouting openings in a parallelogram shape and in opposite directions arranged in the middle of the base, a feeding disc connected to the lower part of the base, and a first grouting opening arranged in the center of the feeding disc. The application also provides a method for reducing welding marks in an alumina ceramic crucible, which comprises the following steps: assembling the outer mold, the inner mold, a mold core ring, the base and the feeding disc; placing the mold into water with a temperature of 24-26 DEG C; injecting alumina ceramic grouting liquid into the mold from the first grouting opening to form; and demolding. The application can reduce welding marks in an alumina ceramic crucible and improve the quality of finished products.

This invention discloses an aminated graphene oxide-based bipolar membrane and its preparation method, belonging to the field of bipolar membrane technology. The bipolar membrane is composed of a sulfonated polyphenylene sulfone cation layer, an aminated graphene oxide interlayer, and a quaternized polyphenylene ether anion layer stacked sequentially. This invention utilizes the aminated graphene oxide as the interlayer, taking advantage of its two-dimensional sheet-like morphology, abundant catalytic groups, and cross-linking effect to achieve a bipolar membrane with low water dissociation voltage, good interlayer compatibility, and structural stability. When applied to electrodialysis, it improves alkali concentration and current efficiency compared to commercially available membranes, while reducing energy consumption, showing promising application prospects in acid and alkali preparation, resource recovery, and other fields.

The invention provides a negative current collector, a preparation method thereof and a sodium ion battery. The negative electrode current collector comprises a base material and a conductive layer arranged on at least one side surface of the base material, the conductive layer comprises a conductive agent, nano metal and a binder; wherein the nano metal is a sodium-philic nano metal. According to the invention, the sodium-philic nano metal is added into the conductive layer, so that the number of sodium ion deposition sites can be increased, and therefore, in the cycle process of the battery, sodium ions are separated from a positive electrode and then directly deposited on a negative electrode current collector to form a negative electrode, and the efficiency, uniformity and stability of sodium ion deposition are improved. Meanwhile, the conductivity of the conductive layer can be improved by adding the sodium-philic nano metal, so that the internal resistance of the base material is greatly reduced, the electrochemical performance of the sodium-ion battery is improved, and the service life of the sodium-ion battery is prolonged. In conclusion, the negative current collector provided by the invention can improve the uniformity and stability of sodium ion deposition, thereby improving the electrochemical performance, cycle life and safety performance of the battery.

The utility model discloses a multilayer composite structure's conductive sponge relates to conductive sponge technical field, by from top to bottom includes nanometer silver coating, first conductive sponge layer, metal grid layer, second conductive sponge layer, first conductive acrylic adhesive layer, conductive cloth layer, second conductive acrylic layer and release paper layer, nanometer silver coating lower surface and first conductive sponge layer upper surface fit fixed, first conductive sponge layer lower surface and metal grid layer upper surface fit fixed, metal grid layer lower surface and second conductive sponge layer upper surface fit fixed, second conductive sponge layer lower surface and first conductive acrylic adhesive layer upper surface fit fixed, first conductive acrylic adhesive layer lower surface and conductive cloth layer upper surface fit fixed, conductive cloth layer lower surface and second conductive acrylic adhesive layer upper surface fit fixed, effectively solved the problem that traditional conductive sponge antibacterial performance is missing, and the unstable problem of conductive performance.

The invention relates to the technical field of filling, in particular to a dome type valve rod sealing filling gun which comprises a material pipe, a valve rod, a plug and a sealing structure, the material pipe is in a hollow pipe shape and communicates with a material inlet, the valve rod is arranged in the material pipe in a penetrating mode and can do axial reciprocating motion, and the plug is fixed to the bottom of the valve rod and can plug an opening in the bottom end of the material pipe; the sealing structure comprises a cavity and a sealing component, the cavity is arranged above the material pipe and communicated with the material pipe, a fixed part of the sealing component is fixedly sealed with the inner wall of the cavity, and a movable part of the sealing component is fixedly arranged on the valve rod in a sleeving mode and generates controllable elastic deformation along with movement of the valve rod to form static sealing. Traditional sliding sealing is converted into a static sealing structure, the fixed part of the sealing component and the cavity are fixedly sealed, the movable part of the sealing component moves along with the valve rod, the sealing state is maintained by means of elastic deformation, sliding friction between the valve rod and the sealing ring is avoided fundamentally, and the sealing performance is improved. And the problem of sealing failure caused by abrasion of the sealing ring and scratching of the sealing ring by crystal particles is fundamentally solved.

This utility model discloses a multi-layer composite plastic-free waterproof packaging paperboard, comprising, from the outside to the inside, a waterproof functional layer, a first fiber substrate layer, a moisture regulating layer, a second fiber substrate layer, and a support and cushioning layer, stacked sequentially. A micron-level interlocking structure is formed at the interface between the first fiber substrate layer and the waterproof functional layer. The waterproof functional layer is composed of a plastic-free fiber layer impregnated or coated with a bio-based hydrophobic agent. The moisture regulating layer is a loose cellulose fiber web loaded with highly absorbent resin particles. The support and cushioning layer is a recycled pulp molding layer with a honeycomb or corrugated three-dimensional structure. The plastic-free composite process strengthens the interlayer bond through the interweaving of plant protein glue and hot-pressed fibers. The overall structure has high strength, strong waterproof capability, and is environmentally friendly, effectively solving the pollution problems caused by traditional plastic film packaging.

The invention relates to a disc for a disc brake and a method for manufacturing the same. The disc comprises a brake band equipped with two opposite braking surfaces and made of gray cast iron or steel, a base layer covering at least one of the two braking surfaces, and a bonding layer interposed between the base layer and the braking surface. The base layer comprises a titanium matrix and / or titanium alloy containing carbides and defines the tribologically active surface of the disc, or the base layer comprises a layer of titanium and / or titanium alloy and is covered by a coating layer comprising a carbide-based layer and defining the tribologically active surface of the disc. The bonding layer comprises a titanium layer or comprises a titanium or steel alloy layer. A first intermediate fusion layer having a mixed composition between the bonding layer and the brake band is provided at the junction of the bonding layer with the brake band. A second intermediate fusion layer having a mixed composition between the base layer and the bonding layer is provided at the junction of the base layer with the bonding layer. The base layer and the bonding layer have a crystal structure with a growth direction mainly orthogonal to the braking surface.