45results about How to "Smooth material surface" patented technology

The invention relates to an enhanced conductive nylon material and a preparation method thereof. The enhanced conductive nylon material comprises the following raw materials in percentage by weight: 40 to 70 percent of nylon, 10 to 40 percent of glass fibers, 10 to 40 percent of metal powder, 0.1 to 5 percent of coupling agent, 0.1 to 0.5 percent of antioxidant and 0.5 to 5 percent of silicone oil. The invention provides a method for thermoplastic conductive plastics by attaching the metal powder to the glass fibers twice and mixing the glass fibers, the metal powder and plastics for pelleting by utilizing the characteristics of easy machining and dispersion of the glass fibers in the plastics, and the prepared thermoplastic conductive plastics have the characteristics of simple and convenient production process, uniform dispersion of the metal powder, small addition amount, controlled conductivity and smooth surfaces of products.

The composite electroforming process of preparing nanometer silicon carbide particle reinforced nickel base composite material has electrolytic nickel block as anode material, stainless steel sheet as cathode deposition body, silicon carbide particle of 10-50 nm as reinforcing particle and ammonium cetyl bromide as co-deposition promoter. Through mixing silicon carbide particle and co-deposition promoter solution through stirring, pouring the mixed solution into electroforming solution of nickel amino sulfonate, applying DC voltage while stirring the electroforming solution to make nickel ion and reinforcing particle deposit together onto the cathode mother body and stripping the composite electroformed layer, integrated nanometer silicon carbide particle reinforced nickel base composite material is produced. The produced composite material has high hardness, high strength, high ductibility and relatively great thickness, and may be used as functional structure material.

The invention provides a nanometer paper material and a preparation method thereof. Nanometer paper is prepared by blending a polymer and clay in a water solution, freeze-drying, and then, mechanically pressing the mixture, wherein the polymer contains 5-95% of nanometer paper, and the clay contains 95-5% of nanometer paper. As the nanometer paper material provided by the invention is prepared by taking the polymer and clay as raw materials, only water is adopted as a solvent in a preparation process, and the freeze-drying and mechanical pressing processes are adopted, so that the preparation processes are environment-friendly, and the production efficiency is high. The freeze-drying and mechanical pressing processes for preparing the nanometer paper material are more efficient, and the obtained material is smooth in surface, relatively high in strength, good in flame retardance and good in product quality repeatability. The preparation method is simple in process operation, low in cost and easy to popularize.

The invention provides a halogen-flame-retardance anti-static polypropylene composite material, belonging to the field of material chemistry. The composite material is prepared from the following raw materials in parts by mass: 70-90 parts of polypropylene, 3-7 parts of inorganic conductive filler, 10-30 parts of conductive promoter and 35-65 parts of halogen-free inrumescent flame retardant. The invention further provides two methods for preparing the composite material. Compared with a traditional flame-retardant anti-static polypropylene composite material, the material is prepared by a halogen-free flame-retardant technology and has permanent anti-static capability, excellent mechanical performance and excellent processing performance.

The invention provides a PVC (polyvinyl chloride)-base wood-plastic composite material and a preparation method thereof, belonging to the field of PVC-base wood-plastic composite materials. The invention solves the problems of poor mechanical properties and high cost in the existing PVC-base wood-plastic composite material. The PVC-base wood-plastic composite material comprises the following components in parts by weight: 100 parts of PVC, 1-3 parts of stabilizer, 1-2 parts of fatty acid soap, 1-3 parts of processing modifier ACR, 8-10 parts of reactive toughener, 20-50 parts of wood meal and 2-4 parts of polyethylene wax. The invention also provides a preparation method of the PVC-base wood-plastic composite material. The reactive toughener is a polyacrylate core-shell toughener containing epoxy groups and other active groups on the surface. While reacting with the hydroxy groups on the wood meal surface, the reactive toughener can reduce the polarity of the wood meal, promotes the dispersion of the wood meal in the PVC and enhance the filling amount of the wood meal. The mechanical properties of the composite material are enhanced.

The invention relates to an anion-cation doped P2 type sodium ion battery positive electrode material and a preparation method thereof. The chemical formula of the cathode material is Na0.67CuxMn1-xO2-yFy, x is more than 0 and less than or equal to 0.35, y is more than 0 and less than or equal to 0.3, a manganese salt, a copper salt and sodium fluoride are weighed according to the molar ratio of Mn, Cu and F elements and dissolved in deionized water, then a sodium salt is added and stirred to be dissolved, a mixed metal salt solution is prepared, and a citric acid solution is used as a complexing agent; the mixed metal salt solution is added into the complexing agent, ammonia water is added to adjust the PH value of the solution to be 8-11, the heating temperature is 60-90 DEG C, and gel is obtained after drying by distillation under the stirring condition; and the obtained gel is dried and crushed, presintered in an air atmosphere, sintered, and cooledto room temperature to obtain the positive electrode material. Through the synergistic effect of Cu ions and F ions, excellent electrochemical performance is shown, for example, the specific capacity of the material is improved, and the rate capability and the cycling stability are good.

The invention discloses a W-Ni-Cu gradient material and a preparation method thereof. The method comprises the following steps: taking a molten salt system of NaCl-KCl-NaF-NiO as an Ni leakage source and taking a copper-plating aqueous solution as a Cu leakage source; electrically depositing and leaking nickel on a pure W plate through molten salt, electrically depositing and leaking Cu through an aqueous solution; and finally diffusing and annealing to obtain the W-Ni-Cu gradient material. The material is high in thermal shock resistance and thermal fatigue resistance; all the components of the material are combined closely; the material surface structure is compact and smooth; the material has high electrical conductivity, high thermal conductivity and high mechanical performance. The method is capable of simultaneously carrying out mutual diffusion between W and Ni and carrying out mutual diffusion between Ni and Cu under the action of an electric field and a temperature field by using an electric deposition method according to the basic diffusion theory (the electric field can accelerate the diffusion of solid metals, and the diffusion speed of the opposite party can also be mutually improved when carrying out multi-element diffusion in the solid diffusion); the thickening of gradient layers can be accelerated; the W-Ni-Cu gradient material has the characteristics of rapid forming speed of the gradient layers, short preparation time, randomly controllable thickness of the gradient layers, compact surface structure of the material, high thermal conductivity and simple process.

The invention discloses a touch display device. The touch display device comprises a first substrate and a second substrate opposite to the first substrate; a color film substrate is arranged at a part of the area, toward one side of the second substrate, of the first substrate; a polaroid is arranged on the color film substrate; a cementing layer is arranged on the polaroid; the areas of the first substrate and the second substrate are greater than the area of the color film substrate, the area of the polaroid and the area of the cementing layer; a gap is formed between the first substrate and the second substrate; and a rigid material layer is arranged in the gap, so that the strength of a single-layer area of the first substrate can be effectively increased and the local deformation resisting ability is improved.

The invention provides a PP calcium plastic material for improving printing suitability for a packaging box body and a preparation method of the PP calcium plastic material. The PP calcium plastic material for improving the printing suitability for the packaging box body is prepared from the following raw materials in parts by mass: 30-60 parts of PP resin, 1-5 parts of PE resin, 40-65 parts of ground calcium carbonate, 1-3 parts of borate multifunctional additive and 0.5-1 part of anti-aging agent. The PP calcium plastic material for improving the printing suitability for the packaging box body is obtained by conducting uniform stirring, conducting granulating by a double-screw extruder and finally conducting extruding and molding by a single screw. According to the PP calcium plastic material for the packaging box body and the preparation method thereof, the formula is simple, printing coloring is obviously improved, and the mechanical property is good; and the preparation method issimple in process, convenient to operate and control, high in production efficiency and low in production cost.

The invention is applicable to the technical field of membraneous materals, and provides a polyimide filter membrane, and a preparation method and application thereof. The polyimide filter membrane is composed of compounds A disclosed as the chemical structural formula (I) in the specification, wherein the number-average molecular weight of the compounds A is 80000-100000. In the chemical structural formula (I), Ar is disclosed as one of the structural formulae in the specification. The polyimide filter membrane provided by the invention has the advantages of small pore size and high entrapment rate for fine particles in air. The polyimide filter membrane material has the characteristics of high compactness and smooth surface; and the formed fibers can not easily shed and have favorable stability. Besides, the polyimide filter membrane is low in cost, and is only less than one-fifth of the price of the same mass of commercially available sampled filter membrane.