46results about How to "Good adhesiveness" patented technology

The invention discloses a shallow lake submerged plant planting matrix and an efficient planting method. The method comprises the steps of submerged plant planting matrix preparation, seedling preparation, culture and maintenance and seed throwing. The planting substrate comprises the following components in percentage by weight: 54-74% of common soil; 12 to 33% of sediment; 11-12% of river sand; 1% of kaolin; after the raw materials are uniformly mixed, a small amount of water is added for multiple times, so that the sticky planting substrate is formed. Propagules such as submerged plant seedlings, buds and seeds are wrapped with the planting substrate. The submerged plants and the planting substrate form a stable whole body which is not easy to separate; after the plant seedlings are maintained and cultivated for 5 days, the submerged plant seedlings are thrown and planted in the lake water area. A small amount of degradable environment-friendly substrate raw materials are added, so that the strength and toughness of the planting substrate can be improved, the substrate can be kept in water until the submerged plants are stable in rooting and germination, necessary nutrient elements can be provided for growth of the submerged plants, and rapid and stable growth of the submerged plants is promoted.

The invention relates to the field of food technology, and discloses a phosphorus-free frozen water-retaining agent for tilapia fillets, and a preparation method and application thereof. A phosphorus-free frozen water-retaining agent for tilapia fillets is composed of the following substances in mass fractions: 0.3-0.7% sorbitol, 0.1-0.5% sodium citrate, 0.5%-1.3% soy protein isolate, and the rest is distilled water. The preparation method of the phosphorus-free frozen water-retaining agent is to take sorbitol, sodium citrate, and soy protein isolate in a container respectively, add distilled water, stir and dissolve to obtain. The phosphorus-free frozen storage method of tilapia fillets is to take the tilapia fillets and soak them in the water-retaining agent solution for 0.5-1.5 hours, take them out and vacuum pack them, and then quickly put them into a -20°C environment for frozen storage. The phosphorus-free frozen water-retaining agent of the present invention can not only inhibit the denaturation of protein and fat of tilapia during frozen storage, maintain the stability of fish fillet protein, but also improve the texture characteristics of the fish fillets, and improve the antifreeze and water retention.

The utility model provides an RFID (Radio Frequency Identification Device) hang tag rolling compound machine which comprises a rack, the rack is rotationally connected with a chip roller, a surface paper roller and a bottom paper roller, a film roll with a chip is loaded on the chip roller, a surface paper roll is loaded on the surface paper roller, a bottom paper roll is loaded on the bottom paper roller, and a film roll with a chip is loaded on the bottom paper roll. A film with a chip, surface paper and bottom paper are adhered and compounded through the compounding assembly under the action of the multiple traction rollers to form a hang tag roll, the hang tag roll sequentially passes through the light source assembly, the cold air assembly and the cutting assembly to form a hang tag, the hang tag is conveyed through the conveying assembly, and waste of the hang tag roll is wound through the first recycling roller. The first recycling roller and the second recycling roller are used for winding the interlayer belt and the hang tag roll waste respectively, winding routes are separated, and normal production of hang tags is prevented from being affected. The air cooler is additionally arranged, the air cooler conducts continuous air drying on the hang tag roll obtained after gluing and compounding, the gluing effect of the hang tag roll can be improved, the phenomenon that the hang tag roll is turned up is avoided, and therefore the produced hang tag is turned up.

The assembly tool comprises a base tool and a movable clamp tool, a machine shell is fixedly arranged above the base tool, the movable clamp tool is vertically arranged on the inner side of the machine shell in an inserted mode, a plurality of magnetic shoes are fixedly arranged on the outer side of the movable clamp tool in a surrounding magnetic attraction mode, and the magnetic shoes are arranged on the outer side of the movable clamp tool in an inserted mode. According to the motor rotor assembling tool, the machine shell and the magnetic shoes are mutually nested and fixed, errors caused by alternate replacement and use of multiple tools are avoided, one set of tool is adopted from feeding to assembling of the motor rotor, the size precision and the production stability of the motor rotor are improved, and the production cost of a production line of multiple tools and combined equipment is reduced.

The invention relates to the field of ceramic tile adhesives, and particularly discloses a high-cohesiveness ceramic tile adhesive which is prepared from 130-140 parts of Portland cement, 130-140 parts of quartz sand, 50-60 parts of bentonite, 30-40 parts of multi-component copolymerized redispersible adhesive powder, 11-14 parts of a water repellent, 6-7 parts of cellulose ether and 3-4 parts of a polycarboxylate superplasticizer. The invention relates to a high-cohesiveness ceramic tile adhesive which is prepared from cellulose ether and multi-component copolymerized redispersible adhesive powder, the cohesiveness and the like of the ceramic tile adhesive can be effectively improved, and bentonite has good miscibility, so that raw materials in the ceramic tile adhesive can be uniformly distributed, and the performance stability of the ceramic tile adhesive is improved; the ceramic tile adhesive contains the cellulose ether and the water repellent, and the cellulose ether and the water repellent can effectively permeate into cement mortar and are combined with cement mortar molecules and a ceramic tile back bottom through Van der Waals' force, hydrogen bonds or chemical bonds, so that the adhesive force of the ceramic tile adhesive is enhanced, and the ceramic tile adhesive has a good adhesive effect.

The invention belongs to the field of food engineering and the field of biological macromolecular materials, and particularly relates to a preparation method and application of oleogel based on protein fibers. The oleogel is prepared from the prolamin from barley and different protein fiber and xanthan gum compounds, the obtained oleogel has high oil holding capacity, high storage modulus, better thixotropic resilience and good temperature and thermodynamic stability, and different types of oleogels can be suitable for different processing scenes, so that the oleogel can be applied to different processing fields. The method can be widely applied to the fields of foods, medicines and cosmetics.

An object of the present invention is to provide an adhesive composition and a coating composition that have storage stability, high adhesiveness, and excellent blocking resistance and water resistance. The present invention provides a crystalline polyester resin comprising: a polyvalent carboxylic acid component and polyhydric alcohol component as a copolymerization components, wherein, 30 to 70 mol% of terephthalic acid, 10 to 60 mol% of 1,4-cyclohexanedicarboxylic acid, 5 to 30 mol% of aliphatic dicarboxylic acid having 10 or smaller of carbon atoms, and less than 3 mol% of an aromatic dicarboxylic acid component having a sulfonate group are contained as the polyvalent carboxylic acid component; and 50 to 100 mol% of 1,4-butanediol is contained as the polyhydric alcohol; wherein, an acid value of the crystalline polyester resin is 100 to 600 eq / t; a glass transition temperature of the crystalline polyester resin is -30 to 30°C; a melting point of the crystalline polyester resin is 70 to 160°C; and a number-average molecular weight of the crystalline polyester resin is 5000 to 40000.

Provided is a composition for an electrochemical device functional layer with which it is possible to form a functional layer for an electrochemical device that can impart excellent process adhesiveness and blocking resistance to an electrochemical device member such as an electrode or a separator and that can cause an electrochemical device to display excellent electrochemical characteristics. The composition for an electrochemical device functional layer contains a particulate polymer and a binder. The particulate polymer has a molecular weight distribution (weight-average molecular weight (Mw) / number-average molecular weight (Mn)) of not less than 1.0 and not more than 3.0.

A problem to be addressed by the present invention is to enable a plating layer having excellent surface smoothness to be formed without compromising the various excellent properties inherent in polyphenylene sulfide resins, and to provide a plated molding which is excellent in adhesiveness of the plating layer and ensures high plating quality even in severe environmental degradation tests such as thermal shock cycle tests as well as a method of producing thereof. To solve the above problem, a main object of the present invention is to provide plated molding having a plating layer formed on a part or all of the surface of the molding that is molded with a polyphenylene sulfide resin composition including 30 to 200 parts by weight of a fibrous filler (B) based on 100 parts by weight of a polyphenylene sulfide resin (A), wherein an arithmetic mean roughness of the surface of the plating layer of the plated molding is 1.5 µm or less.

This invention proposes an impact-resistant seawall repair adhesive and its preparation method, belonging to the field of adhesive technology. The impact-resistant seawall repair adhesive is prepared from the following raw materials in parts by weight: 70-100 parts water glass, 30-40 parts sodium fluorosilicate, 5-10 parts ammonium chloride, 10-15 parts curing agent, 30-50 parts dimethyl silicone oil, 5-7 parts metal oxide, 2-4 parts emulsifier, and 100-120 parts water. This impact-resistant seawall repair adhesive is a silicate inorganic adhesive that can withstand extremely high temperatures and large tensile and shear forces. It boasts advantages such as high bonding strength with the substrate and abundant raw material sources, good stability, and convenient operation.

The invention discloses an MOF-based low-boiling-point VOCs adsorbent and a preparation method thereof, and relates to the technical field of adsorbents. Comprising the following steps: adding double-MOF powder into a water-borne epoxy resin emulsion, coating the surface of glass fiber with the double-MOF powder, curing to obtain a glass fiber semi-finished product, combining and adhering the glass fiber semi-finished product, and rolling the glass fiber semi-finished product into a rotating wheel with a honeycomb structure to obtain the VOCs adsorbent. The preparation method has the beneficial effects that iron-based and zirconium-based MOFs are subjected to doping self-assembly growth to prepare a dual-MOF material, and the dual-MOF material is fixed on the surface of the glass fiber by using a modified binder, so that the MOF runner is prepared. Compared with a traditional zeolite rotating wheel, by means of the design, the adsorption capacity and selectivity of low-boiling-point VOCs are remarkably improved. In addition, the modified epoxy resin binder not only enhances the binding force between the MOF and the rotating wheel, but also further expands the application scene and prolongs the service life of the prepared VOCs adsorbent.

The utility model discloses conductive cloth suitable for 360-degree wrapping and attaching, which comprises conductive cloth, a double-sided adhesive tape and a silica gel protective film which are matched with each other, a plurality of pieces of conductive cloth are arranged on the silica gel protective film, the double-sided adhesive tape is arranged on one surface, far away from the silica gel protective film, of the conductive cloth, and a workpiece is wrapped and attached through the conductive cloth. According to the conductive cloth suitable for 360-degree wrapping and attaching, the double-faced adhesive tape has good adhesive performance, the conductive cloth can be wrapped and attached to a workpiece such as a plastic piece at 360 degrees, the conductive and shielding effects are achieved, it is guaranteed that the silver gray face of the conductive cloth faces inwards and the black face of the conductive cloth faces outwards during wrapping and attaching, the color of the conductive cloth is consistent with that of the workpiece, the attractiveness is improved, and the service life of the conductive cloth is prolonged. The problems of reverse pasting, wrong pasting and the like can be avoided, rapid wrapping and pasting can be achieved by arranging an avoiding step and a positioning hole, the process is simple and convenient, the working efficiency is high, the yield is high, and the method is suitable for industrial application and popularization.

Provided is a transdermal preparation in which a medicine in an amount sufficient to exhibit a desired medicinal effect is stably retained in a plaster and irritation to the skin is reduced as much as possible. A transdermal preparation including a base; a medicine; and a stabilizer, in which the medicine and the stabilizer are contained in the base, and the stabilizer is selected from the group consisting of thiosulfates, sulfites, bisulfites, and nitrites. The transdermal preparation preferably further includes glycerin.

The present application relates to the field of magnetic material technology, and more specifically, to an aluminum-nickel-iron magnetic powder core and its preparation method and application. An aluminum-nickel-iron magnetic powder core comprises the following components in parts by weight: 30-85 parts of modified aluminum-nickel-iron magnetic powder, 11-55 parts of resin composition, 2-10 parts of diluent, 0.3-1.2 parts of curing agent and 0.5-2.5 parts of accelerator, wherein the resin composition comprises polyetherimide modified epoxy resin, phenolic resin and hyperbranched polyimide resin. An aluminum-nickel-iron magnetic powder core of the present application improves the problems of insufficient magnetic properties, high eddy current loss, poor high-frequency performance of existing magnetic powder cores, and difficulty in meeting some market demands, so that the obtained aluminum-nickel-iron magnetic powder core has high effective magnetic permeability, large magnetic flux density, and low eddy current loss, meeting the market demand for magnetic powder core performance.

The application relates to the field of dust removal technology, and specifically discloses a kind of sticky paper, preparation method and sticky roller. The sticky paper includes a substrate layer and an adhesive layer coated on the surface of the substrate layer, and the adhesive layer is made of the following components in parts by weight: 8-12 parts of styrene-butadiene-styrene block copolymer, 2.5-4.5 parts of styrene-butadiene rubber, 15-20 parts of tackifying resin, 0.5-1 parts of vinyl polysiloxane, 0.5-1 parts of hydrogen-terminated dimethylsiloxane, 0.1-0.2 parts of antioxidant, 5-10 parts of filler oil, 1-3 parts of zinc oxide, and 1-3 parts of white carbon black. The sticky paper preparation method provided in the present application is simple, low in cost, and does not contain organic solvents, which is more environmentally friendly. The sticky paper prepared in the present application is applied to the sticky roller, which is easy to use, has high initial adhesive strength and is not easy to leave marks.

The invention relates to the technical field of biomass chitosan adhesives, in particular to a low-temperature curing chitosan adhesive as well as a preparation method and application thereof. The preparation method comprises the following steps: S1, preparing acidified hydroxyethyl cellulose; s2, chitosan and a product obtained after the reaction in the step S11 are weighed at the room temperature and added into a beaker, a certain amount of deionized water is added, and continuous stirring is conducted for 0.5 h at the temperature of 85 DEG C; and S3, weighing boron nitride at room temperature, adding the boron nitride into a product prepared in the step S2, and continuously stirring at room temperature for 0.5 h to finally obtain the chitosan adhesive. According to the preparation method, the adhesive is prepared from the acidified hydroxyethyl cellulose, the chitosan and the boron nitride, and the chitosan does not need to be modified by additional chemicals.

The invention relates to the field of sponge processing, and particularly discloses a noise reduction sponge gluing device and a processing method.The noise reduction sponge gluing device comprises a support, a conveying mechanism arranged on the support, a gluing mechanism arranged above the conveying mechanism and an extrusion roller arranged on one side of the gluing mechanism; the conveying mechanism comprises a first driving motor, a driving wheel, a driven wheel and a conveying belt, sponge needing to be pasted comprises upper-layer sponge and lower-layer sponge, the lower-layer sponge is placed at the top end of the conveying belt, the upper-layer sponge is rotatably placed above the support, the conveying belt drives the lower-layer sponge to move in the direction of the extrusion rollers, and the lower-layer sponge is driven by the conveying belt to move in the direction of the extrusion rollers. The gluing mechanism comprises a glue solution cylinder, a gluing roller, a mounting rod and a smearing assembly, the top end of the lower-layer sponge is coated with the glue solution in a rolling mode through the gluing roller, and the top end of the lower-layer sponge is coated with the glue solution for the second time through the smearing assembly.

The utility model discloses a semi-steel radial limo tire with a high-load and high-tire-bead durable structure, which relates to the technical field of tires and comprises a tire body, a tire bead is arranged on the outer side of the tire body, a tire side is arranged on one side, far away from the tire bead, of the tire body, a tire tread is arranged on one side of the tire side, a belted layer is arranged at the lower end of the tire tread, and a reinforcing layer is arranged between the tire body and the tire side. According to the semi-steel radial limo tire with the high-load and high-tire-bead durable structure, the tire side part adopts a multi-composite structure, so that the friction force between the tire bead part and the wear-resistant rubber and the friction force between the belted layer and the upper end of the tire side part under high load can be reduced, the heat generation is low, the premature wear and delamination of the shoulder part of the tire are reduced, and the service life of the tire is prolonged. The double-bead filler structure is arranged, the supporting effect of the ring part is provided, transmission of stress of the ring part to the tire side half part is borne, the nylon wrapping cloth is wound on the outer side of the steel wire, the adhesiveness is increased, the tire body and the tire side structure are fastened, dispersion of circumferential attaching force of the ring part is facilitated, and the durability of the tire bead is enhanced.

This utility model relates to a six-layer composite antibacterial and oxygen-barrier PPR pipe. It solves the technical problem that existing metal layers lose their pressure-bearing capacity when through-holes are made in the metal layer. The pipe includes a hollow pipe body with a six-layer structure, consisting of an antibacterial layer, an inner plastic layer, an inner adhesive layer, an aluminum strip layer, an outer adhesive layer, and an outer plastic layer, arranged sequentially from the inside out. The surface of the aluminum strip layer has several inwardly recessed pits that do not penetrate the aluminum strip layer, formed by laser etching. These pits are micron- or nanometer-sized, and the pit density is greater than 100 pores / cm². 2 The advantages are as follows: This device achieves surface etching treatment on the aluminum strip layer by applying laser etching technology, creating micropores on the surface of the aluminum strip layer. Compared with existing technologies, this not only improves the adhesive strength of the aluminum strip layer but also ensures its pressure-bearing capacity, significantly increasing the bonding strength between the aluminum strip layer and the inner and outer adhesive layers, thereby enhancing the overall reliability and service life of the six-layer composite pipe.

Provided is a conductive undercoating agent, including: a conductive carbon material; a binding agent; and a solvent, wherein the conductive carbon material is flaked graphite having an average thickness of from 10 nm to 200 nm and a specific surface area of from 10 m2 / g to 40 m2 / g.

The utility model relates to the technical field of paper box production, in particular to a press-fit device for a paper box, which comprises a conveying press-fit assembly, a pressing wheel and a pressure control assembly, the conveying press-fit assembly comprises two machine bodies, an upper conveying belt and a lower conveying belt rotating in the reverse direction of the upper conveying belt, the upper conveying belt and the lower conveying belt are rotationally connected with the two machine bodies correspondingly, the two machine bodies are connected through a telescopic piece, and the circumferential outer wall of the pressing wheel is tangent to the inner wall of the lower portion of the upper conveying belt and used for conducting targeted pressing fit on an adhesive part. The pressure control assembly comprises a pressure sensor and a controller electrically connected with the pressure sensor. By using the pressure control assembly and the pressing wheel, balanced pressing force is provided for cartons of different thicknesses, the pressing effect on the cartons is improved, targeted pressing can be conducted on the gluing positions of the cartons, the gluing effect is enhanced, the gluing positions are tighter, and it is ensured that the sealing performance of the cartons is better.

One embodiment of the present invention relates to a polymer, a composition, a cured product, a laminate, or an electronic component, and the polymer has a repeating structural unit represented by Formula (1) and has a group Y represented by Formula (a) at a terminal: wherein X's are each independently -O-, -S-, or - N(R3)-, R3 is a hydrogen atom, a monovalent hydrocarbon group having 1 to 20 carbon atoms, a monovalent halogenated hydrocarbon group having 1 to 20 carbon atoms, or a group obtained by substituting a part of the hydrocarbon group or the halogenated hydrocarbon group with at least one selected from an oxygen atom and a sulfur atom, R1 is a divalent organic group, and R2 is a divalent unsubstituted or substituted nitrogen-containing heteroaromatic ring;         -Y     (a) wherein Y is a group containing an ethylenically unsaturated double bond and having 3 to 50 carbon atoms, an unsubstituted or substituted aromatic hydrocarbon group having 6 to 50 carbon atoms, an unsubstituted or substituted aliphatic hydrocarbon group having 6 to 50 carbon atoms, or an unsubstituted nitrogen-containing heteroaromatic ring, and when the aromatic hydrocarbon group or the aliphatic hydrocarbon group has a substituent, the substituent is a group other than a hydroxy group.

Provided is a binder composition for an electrical storage device, which enables the production of an electrical storage device electrode excellent in repeated charge-discharge characteristic through a reduction in internal resistance and also excellent in charge-discharge durability characteristic under high temperature through an improvement in adhesiveness. The binder composition for an electrical storage device according to the present disclosure includes: a polymer (A); and a liquid medium (B), wherein, with respect to 100 mass% in total of repeating units contained in the polymer (A), the polymer (A) contains: 15 mass% to 60 mass% of a repeating unit (a1) derived from a conjugated diene compound; and 1 mass% to 30 mass% of a repeating unit (a2) derived from an unsaturated carboxylic acid, and wherein tan6 (loss elastic modulus / storage elastic modulus) in dynamic viscoelasticity of the polymer (A) has one peak top in a range of from -50°C or more to less than 15°C (tanδ1), one peak top in a range of from 15°C or more to less than 85°C (tan62), and one peak top in a range of from 85°C or more to 150°C or less (tanδ3).

The present invention provides a polymeric dispersant that is to be blended in an aqueous pigment dispersion in which a pigment is finely dispersed in a stable manner and at a high level, the aqueous pigment dispersion enabling preparation of an aqueous inkjet ink capable of recording an image excellent in adhesiveness and durability on plastic media and textiles. The polymeric dispersant is a polymeric dispersant that is for dispersing a pigment and is to be blended in an aqueous pigment dispersion to be used for an aqueous inkjet ink for plastic media printing or textile printing, and is a polymer satisfying the following requirement (1) and the like. [Requirement (1)]: The polymer includes a constituent unit (i) derived from styrene, a constituent unit (ii) derived from methyl methacrylate and / or the like, a constituent unit (iii) derived from 2-ethylhexyl methacrylate and / or the like, a constituent unit (iv) derived from 2-hydroxyethyl methacrylate and / or the like, and a constituent unit (v) derived from methacrylic acid, and at least part of carboxy groups is neutralized with an alkali.

An adhesive resin composition according to the present invention is characterized by containing a polyester resin (A) and satisfying: (i) the polyester resin (A) has an acid value of 100 eq / ton or more; (ii) the adhesive resin composition contains substantially no curing agent; and (iii) the polyester resin (A) contains, as polyol components constituting the polyester resin (A), a diol (a) having two primary hydroxy groups and having no alicyclic structure, and either one or both of a diol (b) having an alicyclic structure and a diol (c) having one primary hydroxy group and one secondary hydroxy group and having no alicyclic structure. The adhesive resin composition according to the present invention has good pot life property, and has excellent solder heat resistance and adhesiveness to various base materials, even with use of substantially no curing agent. The present invention also provides a laminate or an adhesive sheet comprising an adhesive layer made from the adhesive resin composition, a printed-wiring board or a packing material comprising the laminate as a constituent element, and a laminated film for decorating three-dimensional molded article or a film for laminating metal can comprising the adhesive sheet as a constituent element.

The utility model discloses a vehicle-mounted multimedia player, and relates to the field of vehicle-mounted multimedia players. The automobile player comprises a player body, the player body is fixedly installed on the surface of an automobile front console through a supporting frame, the supporting frame comprises a suction cup pressing shell, a suction cup is installed on the lower portion of the inner side of the suction cup pressing shell, the supporting ring is glued to the edge of the bottom face of the suction cup, and a plurality of supporting cushion blocks are glued to the center of the suction cup. The supporting ring and the supporting cushion block are made of high-elasticity silica gel materials, the bottom faces of the supporting ring and the supporting cushion block are adhesive faces, the supporting ring and the supporting cushion block can be tightly attached to the surface of an automobile front console, the adhesive effect is remarkably enhanced, it is guaranteed that the vehicle-mounted multimedia player is stably installed, and the vehicle-mounted multimedia player is not prone to shifting due to vibration in the running process of a vehicle; and the adhesive surfaces of the supporting rings and the supporting cushion blocks can also increase the contact area with the surface of the console, so that the firmness of the adhesive is further improved.

To provide an inorganic fiber sheet with high workability, which is also excellent in tackiness or adhesiveness when a pressure-sensitive adhesive or an adhesive has been applied thereto. The inorganic fiber sheet is a non-woven fabric containing inorganic fibers. The inorganic fiber sheet has a thickness T of 1 mm or more and contains shots derived from inorganic fibers and having a diameter of 45 µm or more. The shots included in the inorganic fiber sheet is distributed in a sheet thickness direction as represented by Formula 1. Provided that Formula 1 is "1 - Y / X ≤ 0.11", where X represents "a total weight of the shots in the inorganic fiber sheet per unit area" / "a total weight of the inorganic fiber sheet per unit area", and Y represents "a weight of the shots per unit area included in the inorganic fiber sheet from which a portion having a thickness t and satisfying 0 ≤ t ≤ s is removed, provided, however, that 0.10 mm ≤ s ≤ 0.55 mm, with a wire side surface of the inorganic fiber sheet as a reference surface" / "a weight per unit area of the inorganic fiber sheet from which the portion having the thickness t is removed with the wire side surface of the inorganic fiber sheet as the reference surface".

The invention provides a seam beautifying strip and a use method thereof, and relates to the technical field of seam beautifying agents. The seam beautifying strip is characterized by comprising the following raw material components: a strip-shaped polymer and waterborne epoxy glue, and the compression ratio of the strip polymer is not less than 50%. The waterborne epoxy glue is composed of a component A and a component B, the component A comprises epoxy resin emulsion, the component B is a waterborne curing agent, and preferably, the component B comprises amino silicone oil microemulsion. The seam beautifying strip is used for filling and decorating seams and can solve the problem of wide and deep seams.

The invention discloses a lithium ion battery negative electrode composite material, a preparation method thereof, a negative electrode plate and a lithium ion battery, and belongs to the technical field of lithium ion battery materials. The composite material has a core-shell structure, an inner core is a carbon material, and a shell layer is a niobium-tungsten oxide material with different chemical structural formulas. The preparation method comprises the following steps: adding a carbon material, tungsten salt, niobium salt and other raw materials into an organic solution, stirring and standing, adding deionized water and other reactants, generating a corresponding sol-gel product under the action of hydrolysis / alcoholysis reaction, and drying to form a tungsten-niobium mixed initial coating layer on the surface of the carbon material; and finally, performing high-temperature treatment in an inert atmosphere to obtain the niobium tungsten oxide material coated carbon material composite material negative electrode. Comprising the composite material can be reassembled into a lithium ion battery, a battery pack, a 3C consumer electronic product, a new energy automobile and other electronic equipment.

The invention relates to dry-mixed mortar for paving ceramic tiles and a preparation method thereof, and relates to the technical field of building materials, and the dry-mixed mortar comprises the following components in parts by mass: 60-80 parts of Portland cement, 30-40 parts of quartz sand, 30-40 parts of water-retention tackifying resin, 20-30 parts of a composite compatibilization modified filler, 10-15 parts of lime putty, and 5-10 parts of a modified thickener. The effect of improving the water retention performance of the dry-mixed mortar is achieved, and the dry-mixed mortar has high bonding strength, compressive strength and good anti-freezing performance.