44results about How to "Not easy to layer" patented technology

The present invention provides an FDY oil agent that can be directly oiled with crude oil and a preparation method thereof, the preparation method comprising: putting a sizing agent, an antistatic agent, an emulsifier, a phase change wear-resistant agent and a smoothing agent into a reactor; heating the reactor to 40°C to 60°C, turning on the stirring device of the reactor, and continuously stirring for 20min to 40min under heat preservation conditions to obtain the FDY oil agent; wherein the phase change wear-resistant agent is prepared by the following steps: using a raw material including paraffin to prepare an oil phase; using a raw material including ethyl orthosilicate to prepare an aqueous phase; using a raw material including polyol and isophorone diisocyanate, through an oil-in-water emulsification system, to prepare an emulsion; mixing the emulsion, the oil phase and the aqueous phase to prepare the phase change wear-resistant agent. The FDY oil agent of the present invention has good high temperature resistance and wear resistance.

The invention relates to a paper substrate bio-based high-barrier Pickering emulsion coating and a preparation method and application thereof, and belongs to the technical field of paper coatings, the prepared coating has excellent waterproof and oil-proof performance and is suitable for surface coating of substrates such as paper, the emulsion is prepared by taking glycerol as a plasticizer and chitosan as an oil-proof agent, and the emulsion is prepared by taking the chitosan as an oil-proof agent. The cellulose nanocrystal is used as an emulsifier, and the alkyl ketene dimer AKD and palm wax are used as an oil phase. After the emulsion is coated on the surface of paper, a high-barrier coating with a core-shell structure is formed, and the core-shell structure is clear through electron microscope observation; the hydrophobic angle of the coating can reach 130 degrees to the maximum, and the coating shows remarkable hydrophobicity and oil resistance. The coating is composed of bio-based materials, has the advantages of environmental protection and sustainability, is suitable for application requirements of degradable and green packaging, is simple in preparation process and excellent in performance, and can provide efficient barrier performance for paper packaging materials.

The invention relates to the field of food seasonings, and discloses salad dressing containing dietary fibers and a preparation method of the salad dressing. The invention discloses salad dressing containing dietary fibers. The salad dressing is prepared from the following raw materials in parts by weight: 15-25 parts of egg white, 10-20 parts of yolk, 5-10 parts of vegetable oil, 18-24 parts of dietary fibers, 3-5 parts of a thickening agent, 2-4 parts of a sweetening agent, 3-5 parts of a flavoring agent, 0.03-0.06 part of a preservative and 30-40 parts of water. The dietary fiber consists of oat, konjac glucomannan and oligosaccharide in a weight ratio of (22-25): (1-2): (4.5-5.5); the preparation method comprises the following steps: whipping the egg white and the sweetening agent to prepare egg white cream; emulsifying egg yolk and vegetable oil to obtain an emulsion; preparing a mixture from the thickening agent, the flavoring agent, the preservative and the water; and emulsifying the emulsion, the protein cream, the dietary fibers and the mixture. The salad dressing prepared by the invention has relatively good taste and texture and good water-retaining property, and is not easy to layer and precipitate after being stored for a long time.

A diffusion brightness enhancement film structurally comprises an upper layer, a middle layer and a lower layer, the upper layer is of a diffusion prism layer structure, the middle layer is of a transparent base material layer structure, the lower layer is of a back coating layer structure, the diffusion prism layer is composed of a plurality of prism strips, cross section bodies of the prism strips are of isosceles trapezoid structures, and circular protruding structures are arranged on the waist portions of isosceles trapezoids. Meanwhile, the diffusion effect is achieved, and the brightness can be improved.

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 invention relates to the technical field of printing ink, and discloses a preparation method of a water-borne epoxy resin binder and application of the water-borne epoxy resin binder in printing ink, water and nano titanium dioxide are added into a container, modified silicone oil is added after ultrasonic treatment, stirring and dispersing are carried out, then water-borne epoxy resin, a defoaming agent, a flatting agent and a thickening agent are added, stirring and uniform mixing are carried out, and the water-borne epoxy resin binder is obtained. The waterborne epoxy resin binder is obtained. The catechol structure of the modified silicone oil can be coordinated with the surface of the nano titanium dioxide, so that the surface coating modification of the nano titanium dioxide is realized, the agglomeration of the nano titanium dioxide is reduced, the dispersity of the nano titanium dioxide in a water-borne epoxy resin connecting material is improved, and the emulsion is free of precipitation and layering and very good in storage stability. The imino group contained in the modified silicone oil can be subjected to a curing reaction with the epoxy resin, so that a very good toughening effect is achieved, and meanwhile, the heat resistance and flame retardance of the epoxy resin are improved.

The invention discloses a liquid suspended amino acid selenium-rich foliar fertilizer and a preparation method thereof, the liquid suspended amino acid selenium-rich foliar fertilizer comprises the following raw materials by weight: 30-32 parts of amino acid, 14-15 parts of selenium fertilizer, 6-8 parts of calcium fertilizer, 5-7 parts of magnesium fertilizer, 2-4 parts of boron fertilizer, 1-2 parts of EDTA-Zn, 1-2 parts of EDTA-Fe, 1-2 parts of EDTA-Cu, 1-2 parts of EDTA-Mo, 0-0.1 part of a plant growth regulator, and 0-1 part of a wetting dispersant. 0-2 parts of an emulsifier, 0-1 part of a thickening agent and 31-34 parts of water. The foliar fertilizer disclosed by the invention is good in suspension property, uniform and stable, not only contains a certain amount of selenium element, but also contains a certain amount of amino acid and trace elements, and has certain effects on producing selenium-rich agricultural products and improving crop quality. The suspended amino acid leaf fertilizer is low in production cost, convenient to transport, simple to operate, free of pollution in the production process and environmentally friendly.

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 invention discloses a silicon dioxide composite material with efficient thermal protection and wave-transparent performance for an antenna housing, and belongs to the technical field of high-temperature antenna housings and structural wave-transparent composite materials. The prefabricated body is prepared by a needling lamination process, and the defect that the interlayer mechanical property effect of a 2D fabric structure is not ideal is overcome. The efficient thermal protection and wave-transparent silicon dioxide composite material prepared by the preparation method disclosed by the invention is relatively excellent in comprehensive performance, relatively low in dielectric loss angle tangent value and dielectric constant and excellent in mechanical property, and is a novel multifunctional material. The method plays an important role in radio systems of aerospace crafts such as radomes, carrier rockets, airships, missiles and return satellites.

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 invention belongs to the technical field of biomedical materials, and discloses a mechanically-enhanced integrated three-dimensional micro-nanofiber scaffold and a preparation method thereof. The preparation method comprises the following steps: carrying out electrostatic spinning on hydrophilic and hydrophobic high polymer materials to obtain a micro-nanofiber membrane, foaming by using a sol-containing foaming solution to obtain a three-dimensional micro-nanofiber scaffold, filling the sol, and freeze-drying to obtain the mechanically enhanced integrated three-dimensional micro-nanofiber scaffold. The three-dimensional micro-nano fiber material and the freeze-drying stent in the stent form a continuous integrated interpenetrating network structure, the integrity is good, layering is not prone to occurring, the mechanical property is remarkably enhanced, the stent has more excellent and controllable surface post-treatment characteristics, and particularly, the stent can be conveniently and rapidly endowed with multifunctionality through two-face anisotropic treatment. Meanwhile, during application, the thickness can be flexibly and conveniently regulated and controlled in a press fit mode, so that different medical requirements are met.

The invention relates to the technical field of cosmetics, in particular to a ceramide dispersion composition as well as a preparation method and application thereof. The ceramide dispersion composition provided by the invention takes water as a solvent, and comprises the following components in percentage by mass: 0.25%-10.00% of ceramide and analogues thereof, 0.04%-0.5% of microfilament cellulose and 0.2%-8% of glycolipid. Ceramide has the characteristics of poor water solubility and difficulty in formulation. The microfilament cellulose and the glycolipid are compounded for a ceramide dispersion system for the first time, and under the combined action of the microfilament cellulose and the glycolipid, the obtained finished product is not prone to layering and good in stability.

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.

The present application discloses a dome, a diaphragm assembly, a sound-generating device, and an electronic device, wherein the dome includes two reinforcement layers and a damping layer disposed between the two reinforcement layers, wherein the reinforcement layer and the damping layer respectively contain a cross-linking agent, and the reinforcement layer and the damping layer are heated and cross-linked after being composited to form a chemical bond at the bonding interface between the damping layer and the reinforcement layer, and the damping layer and the reinforcement layer are connected by chemical bonds. The present application arranges a damping layer between the two reinforcement layers, and the reinforcement layer and the damping layer respectively contain a cross-linking agent, and the reinforcement layer and the damping layer are heated and cross-linked after being composited to form a chemical bond at the bonding interface between the damping layer and the reinforcement layer, thereby making the damping layer and the reinforcement layer more tightly connected and less prone to stratification. While providing sufficient rigidity, it also has a certain damping property, which can avoid the generation of split vibration during high-frequency vibration, make the frequency response curve smoother, and improve the sound effect of the sound-generating device.

The present invention relates to a super-fouling-resistant three-dimensional transparent glaze and a preparation process thereof, and belongs to the technical field of glaze preparation. The present invention modifies kaolin to change the surface structure and chemical properties of kaolin, thereby improving the compactness and permeability resistance of the glaze, effectively preventing the penetration and adhesion of stains, and the addition of silicon carbide and the subsequent solution intercalation modification combined with microwave radiation and roasting treatment make the crystal structure of the modified kaolin more stable, thereby enhancing the wear resistance and scratch resistance of the glaze; the present invention ensures the uniformity and fineness of the glaze components and the uniform coating of the glaze through ball milling, and adds water, sodium carboxymethyl cellulose and sodium tripolyphosphate as additives to improve the rheology and stability of the glaze, and then uses a magnetic iron remover to remove iron from the glaze, effectively avoiding the color spots and defects caused by iron oxidation in the glaze layer during the firing process, and improving the smoothness and aesthetics of the glaze layer.

The present invention provides a high-strength composite core paperboard and a manufacturing method thereof. The high-strength composite core paperboard comprises a surface layer, a bottom layer and a core layer located therebetween. The surface layer, the core layer and the bottom layer are bonded together by an adhesive. The bottom layer is made of bottom layer pulp, the core layer is made of core layer pulp, and the surface layer is made of surface layer pulp. The bottom layer pulp comprises OCC pulp and book pulp, the core layer comprises OCC pulp, and the surface layer comprises office waste paper pulp, book pulp, nano filler and cellulase. The present invention ensures good tightness and integrity among the surface layer, the core layer and the bottom layer through the mutual matching of the fibers contained in the surface layer, the core layer and the bottom layer, and the layers are not easy to be delaminated and have a large interlayer bonding force. In addition, nano fillers are added to the surface layer pulp to help fill the gaps between the fibers and enhance the density, strength and smoothness of the surface layer. A small amount of cellulase is also added to the surface layer pulp to remove tiny fiber hairs on the fibers, thereby improving the smoothness and brightness of the surface layer.

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 invention discloses a multi-layer composite modified polypropylene electric power pipe and a preparation method thereof, belonging to the technical field of composite electric power pipelines. The multi-layer composite modified polypropylene electric power pipe comprises an inner layer, a foaming layer and an outer layer arranged in sequence from the inside to the outside; the inner layer, the foaming layer and the outer layer all comprise modified fillers, and the modified fillers are inorganic mixtures sequentially subjected to ultrasonic cavitation treatment, cryogenic treatment and coupling agent surface treatment, and the inorganic mixture is a mixture of nano calcium carbonate, silicon carbide and nano silicon nitride. The obtained multi-layer composite modified polypropylene electric power pipe has good bonding between layers, is not easy to delaminate even under heavy pressure, and after the multi-section composite pipe is welded, the joints also have good drag strength.

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.

The invention discloses a multifunctional composite ultramicro cotton needled felt and a preparation method thereof.The multifunctional composite ultramicro cotton needled felt comprises a needled felt body and base cloth, the needled felt body is composed of the base cloth, a filter layer, a heat insulation layer and a sound absorption layer, and the filter layer, the heat insulation layer and the sound absorption layer are sequentially distributed on the outer side of the base cloth from inside to outside; the filter layer is directly connected with and covers the outer side of the base cloth, the heat insulation layer is connected with and covers the outer side of the filter layer, and the sound absorption layer is connected with and covers the outer side of the heat insulation layer. Through the arrangement of the heat insulation layer and the combined use of the ceramic fibers and the aerogel material, the heat insulation layer can achieve an efficient heat insulation effect and remarkably reduce the heat transfer rate, and the ceramic fibers and the aerogel material are environment-friendly materials, do not contain harmful substances and do not cause harm to the environment and human health; and the materials can be recycled, so that the resource consumption and the waste generation are reduced, and the environmental protection property and the sustainability of the material are further improved.

The invention relates to the technical field of roll core pipes, in particular to a roll core pipe production process and a roll core pipe, the roll core pipe production process comprises the steps of base pipe layer winding, reinforcing layer winding, heating curing and finish machining, the base pipe layer and the reinforcing layer are cured at the same time, layering is not prone to occurring, and the bending strength and the compressive strength are high; the content of the basalt fibers is high, so that the hardness of the pipe surface is high, the wear resistance of the pipe surface is improved, the service life is prolonged, the inherent surface defects of a winding process are made up through surface layer re-coating, grinding and polishing treatment, and the surface smoothness is improved; the antistatic agent can be uniformly distributed on the surface of the basalt fiber, the conductive continuity is good, and the conductivity is greatly improved.

The present application discloses a method for preparing a low-salt permeability bipolar membrane, which belongs to the field of bipolar membrane preparation. In view of the inherent characteristic that the anion membrane layer is difficult to form a cross-linked structure in the casting process, the present application separately designs the high selectivity of the anion membrane layer and the good intermediate interface layer formed by the anion and cation membrane layers. After the surface of the anion membrane layer is coated with a water dissociation catalyst, an anion membrane polymer solution is coated to form a thinner anion membrane layer, and then a highly selective anion membrane is attached and the membrane layers are fixed together to form a whole by a hot melt process; the first anion membrane layer is a thinner anion membrane layer formed by coating, and the design focus is to make the bipolar membrane have a low water dissociation voltage, and the second anion membrane layer is a highly selective anion membrane layer, which ensures the low salt permeability of the bipolar membrane; the anion membrane layer, the first anion membrane layer and the second anion membrane layer are all designed to be fused together by a hot melt process, and the prepared bipolar membrane has low salt permeability and low water dissociation voltage.

The present invention provides a method for manufacturing an asymmetric HDI board and an HDI board, wherein the method first manufactures a motherboard and then manufactures a daughterboard. The manufacturing process of the motherboard includes: obtaining core boards of each layer of the motherboard layer, performing copper reduction treatment on the obtained core boards of each layer, and completing the manufacturing of each layer of the core boards; pre-stacking and pressing the manufactured core boards of each layer according to a preset laminated stacking design. On the pressed motherboard, all through holes on the motherboard are drilled, the drilled through holes are electroplated, and copper cladding is made at the openings of the through holes. On the basis of the motherboard, each sub-board layer of the daughterboard is pressed layer by layer on the side of the motherboard away from the copper cladding; after each sub-board layer is pressed, a blind hole is drilled on the pressed sub-board layer, and the drilled blind hole is electroplated and plugged, and the through-hole connection with the motherboard layer is realized layer by layer. This method can ensure that the hole copper is closely connected with the copper layer on the surface of the substrate, enhance the bonding force between the hole copper and the copper layer on the surface of the substrate, and improve the quality of the product.

The utility model discloses a degradable composite non-woven fabric, and belongs to the technical field of laminated non-woven fabrics. The utility model relates to a degradable composite non-woven fabric, which comprises a'three-layer 'structure consisting of a bio-based fiber non-woven fabric base layer, a degradable high polymer material laminated film upper layer and a degradable high polymer material laminated film lower layer, and viscose fiber pores in the bio-based fiber non-woven fabric base layer are uniformly distributed; the melt I in the upper layer of the degradable high polymer material lamination extends into the pores of the viscose fiber, the melt II in the lower layer of the degradable high polymer material lamination extends into the pores of the viscose fiber, and the melt I and the melt II are bonded in the pores of the viscose fiber; in addition, the degradable high polymer material in the degradable high polymer material spraying film upper layer forms a film I on the front side of the bio-based fiber non-woven fabric base layer, and the degradable high polymer material in the degradable high polymer material spraying film lower layer forms a film II on the back side of the bio-based fiber non-woven fabric base layer. According to the laminated non-woven fabric disclosed by the utility model, the structure of the laminated non-woven fabric is particularly limited, so that the obtained laminated non-woven fabric has the characteristics of degradability, high stiffness and difficulty in layering, and the subsequent requirements are met.

This invention discloses an environmentally friendly and healthy paper drying cylinder stripping agent and its preparation method, specifically relating to the technical field of drying cylinder stripping agents. The drying cylinder stripping agent, by weight, comprises 40-70 parts of bio-based base oil, 5-8 parts of environmentally friendly emulsifier, 4-7 parts of penetration enhancer, 30-60 parts of composite white oil, 2-5 parts of moisturizing stripping aid, 1-4 parts of pH adjuster, 1-4 parts of dispersant, 20-50 parts of deionized water, and 10-40 parts of pectin solution. The bio-based base oil is a compound of soybean oleic acid and palmitic acid. This invention uses bio-based base oil as the core, combined with environmentally friendly emulsifier and natural pectin. All components have good biodegradability, are non-toxic and non-irritating, and will not remain on the paper surface or in production wastewater after use. It will not pollute the environment or affect the health of operators, conforming to the development trend of green papermaking and environmentally friendly production.

The invention discloses a high-strength flat copper wire, and relates to the field of flat copper wires, the high-strength flat copper wire comprises a flat copper wire, the flat copper wire comprises at least two copper wires and a copper body structure formed after copper liquid is solidified; the at least two copper wires are mutually wound and woven to form a copper wire main body; and the copper body structure is filled outside the copper wire main body and forms a flat copper wire to be formed with the copper wire main body. The weaving, casting and pressing processes are combined, the copper wire body is formed after the two copper wires with the small diameter are wound and woven, and compared with a copper wire body with the large diameter, the copper wire body is prone to press-fit deformation, and the problems of cracking, position deviation or breakage and the like are not prone to occurring.