60results about How to "Superficially easy" patented technology

The invention relates to the technical field of self repair materials and provides an epoxy microcapsule with polyurea as a wall material. The core material of the microcapsule comprises liquid epoxy resin, the wall material of the microcapsule is crosslinked polyurea prepared by carrying out an interface reaction on polyisocyanate and water, and the polyisocyanate comprises polyisocyanate containing three elements or more than three elements. The invention also provides a preparation method of the epoxy microcapsule with polyurea as the wall material. The preparation method of the epoxy microcapsule with polyurea as the wall material comprises the following steps of: dispersing polyisocyanate and liquid epoxy resin into water containing a surface active agent to obtain a mixed solution, stirring the mixed solution for 0.5-5 hours at the temperature of 25-90 DEG C, filtering, washing, and drying, so that the epoxy microcapsule with polyurea as the wall material is obtained. The preparation method of the epoxy microcapsule with polyurea as the wall material is simple and practicable and is applicable to industrial production.

This invention discloses a method for preparing highly (111)-oriented PZT thin film. The method can solve the problems of complex process and low repeatability faced by sol-gel method. The method comprises: preparing PZT sol, depositing PZT thin film, pre-crystallizing PZT thin film, and crystallizing PZT thin film. The method is simple. The obtained PZT thin film has compact and smooth surface, uniform thickness, uniform grain sizes, high residual polarization value (43-60 muC/cm2), low coercive field (60-75 kV/cm), and high saturated polarization value.

The invention provides an ultrathin metal oxide nanometer sheet preparation method which comprises the following steps: mixing a soluble metal source, a copper oxide nanometer sheet and water to form reaction solution, standing and performing hydrothermal reaction to obtain a metal oxide nanometer sheet. According to the preparation method, a two-dimensional inorganic metal oxide nanometer material serves as a template to induce and prepare the two-dimensional ultrathin metal oxide nanometer sheet; specifically, a two-dimensional CuO nanometer sheet is utilized as a template material, an epitaxial growth method is utilized to obtain the ultrathin metal oxide nanometer sheet, and the ultrathin metal oxide nanometer sheet is flat in surface and uniform in size and can grow on the surface of the copper oxide nanometer sheet. The preparation method is simple to operate, free of complex equipment, moderate in condition, controllable in process and favorable for industrialization realization; the template material is easy to obtain, and the raw material is wide in source; the prepared ultrathin two-dimensional oxide nanometer material is wide in application prospect in the fields of photoelectric catalysis, electronic devices, energy storage and photoelectric detection.

A ball end repairing cutter belongs to the technical field of metal cutting cutters and is used for solving the repairing problem of the electrode ball end of a suspension point welder. The technical scheme is as follows: the ball end repairing cutter comprises a cutter body, a cutter holder and a cutter blade fixed on the cutter body, wherein the cutter blade is provided with an arc cutting edge and a chip removing chute, the arc cutting edge is arranged at the front end of the cutting blade, and the chip removing chute is connected with the cutting edge; the cutter body is provided with a chip removing channel; and the chip removing chute is communicated with the chip removing channel. The cutter designed by the invention is provided with an arc matched with a processed electrode ball end, easily ensures the surface processing quality when being used for repairing the damaged electrode ball end, is rapid and convenient to repair and has smooth electrode ball end surface just like a new one when being compared with the manual repair, thereby greatly improving the welding quality of a sheet metal component. The invention can be also applied to processing other ball-shaped workpieces.

The invention discloses a preparation method of a hyaluronidase modified vanadium nitride paste electrode sensor. The preparation method is characterized by comprising the following steps: preparing anano VN/graphene composite paste electrode from nano VN, graphene oxide, N-ethyl-3-methylpyridine hexafluorophosphate; then, modifying the nano VN/graphene composite paste electrode with gamma-glycidyl ether oxopropyl trimethoxy silane to obtain a gamma-glycidyl ether oxopropyl trimethoxy silane modified nano VN/graphene composite paste electrode; preparing hyaluronidase stationary liquid from deionized water, bovine serum albumin, hyaluronidase and polyvinyl alcohol; finally, dropwise applying the hyaluronidase stationary liquid to the gamma-glycidyl ether oxopropyl trimethoxy silane modified nano VN/graphene composite paste electrode, and drying to obtain the hyaluronidase modified vanadium nitride paste electrode sensor. With higher electrical conductivity than a common carbon paste electrode, the electrode sensor is specific to hyaluronic acid and has high sensitivity.

The invention relates to the field of refrigeration and especially relates to a marine condenser with a carbon steel and polyethylene hot-melted combined pipe box. The marine condenser is mainly used for solving the technical problems of the prior art that a zinc block is corroded when the zinc block is adopted by the condenser for protecting a pipe box, the pipe box is detached and overhauled, a gasket is manufactured again, the operation is troublesome, the position and the construction of the zinc block are specially designed, the parts of the pipe box are increased, the structure of the equipment is more complex, and the like. The marine condenser comprises a cylinder, wherein a front pipe plate and a rear pipe plate are respectively arranged at front and rear two ends of the cylinder; a front pipe box and a rear pipe box are respectively connected with the front and rear pipe plates; a water inlet and a water outlet are arranged on the front pipe box; a plurality of heat exchange pipes are arranged in the cylinder; a refrigerant inlet and a refrigerant outlet are connected with the exterior of the cylinder; plastic lining layers are arranged inside the front pipe box and the rear pipe box; and the plastic lining layers are plastic and steel substrate hot-melted combined layers.

A technology for manufacturing the shaped composite material with organic and inorganic materials features that the composite organic interface material, composite inorganic material and composite organic material are combined together by use of formwork and through coating, scraping and rollinging. It has the properties of both organic and inorganic materials and the improved resistance to cracking, osmosis, breaking, compression and impact.

The invention discloses a preparation method of a nano-TiC/graphene composite paste electrode sensor. The preparation method of the nano-TiC/graphene composite paste electrode sensor is characterizedby comprising the following steps: treating graphene by using concentrated sulfuric acid and ammonium persulfate to obtain pretreated graphene; then adding 42 to 46% of nano-TiC, 21 to 25% of pretreated graphene, 20 to 25% of N-ethyl-3-methylpyridine tetrafluoroborate and 8 to 12% of silicone oil respectively in an agate mortar, and uniformly grinding to obtain a mixture of carbon paste; placing the carbon paste of the mixture in a glass tube connected with a wire and of which the inner diameter is Phi 5mm, performing compaction, drying, sanding with metallographic sandpaper, polishing, and washing with deionized water, thereby obtaining the nano-TiC/graphene composite paste electrode sensor. The carbon paste electrode prepared by the application has the advantages of having 4 to 5 times higher conductivity than that of the ordinary carbon paste electrode, wide electrochemical window, simple preparation method, low cost, easy surface renewal, small residual current and the like, and isfurther high in detection sensitivity of cefoxitin and good in selectivity.

The invention discloses a method for self-stabilized precipitation polymerization in situ preparation of a poly(4-ethenyl pyridine)polymer, belonging to the field of polymer preparation. The method comprises the following steps: adding a monomer 4-ethenyl pyridine, an initiator and a reaction medium in a reaction container for fully dissolving and shaking, and then reacting at the temperature of 60-80 DEG C for 6-8 hours in the protection of nitrogen; and separating out the polymer from white lactescence through centrifugation or filtration so as to obtain white poly(4-ethenyl pyridine) powder. When the reaction medium is a single organic acid alkyl ester, a monodispersed particle with a grain size of 470-690nm is obtained; and when the reaction medium is a mixed solvent of organic acid alkyl ester, vinylacetate and cyclohexane, a serial type particle with a gain size of 500-1000nm is obtained. In the method, stirring and any stabilizer do not need to be added, a polymerization systemis capable of maintaining a self-stabilized dispersion state, the surface of the polymer particle is clean, and the polymer particle has good thermal resistance.

The invention discloses a PET antibacterial antistatic smooth master batch and a preparation method thereof. The PET antibacterial antistatic smooth master batch comprises, by mass, 30 to 70% of a carrier, 10 to 30% of a smoothing agent, 5 to 15% of an opening agent, 10 to 20% of an antistatic agent, 5 to 10% of an antibacterial agent, 1 to 3% of a dispersant, 0.5 to 2% of a coupling agent and 0 to 1% of other additives. The invention has the following beneficial effects compared with the prior art: when applied in PET films or laminates, the PET antibacterial antistatic smooth master batch has good anti-blocking and smoothing effects, long-lasting and stable antibacterial performance, excellent anti-static performance and good mechanical strength, enables a smooth and flat surface to be obtained, is simple to operate and convenient to use, better improves product performance, processing environment and the like and has wide application prospects.

The invention discloses a method for manufacturing a calendered rubber plate. The method comprises the following steps: 1, mixing raw materials comprising butyl rubber, one or a mixture of two or three of mica, vermiculite and graphite, a fire retardant, one or a mixture of two or three of BaSO4, iron and iron oxide, a fiber, carbon black, a tackifier, a softener and a rubber assistant, and mix-milling the raw materials according to a mix-milling temperature of 120-170DEG C, a mix-milling pressure of 8-10MPa and a mix-milling time of 6-12min; and 2, calendering the mix-milled product in a calender according to a calendering temperature of 50-80DEG C and a linear velocity of 8-12m/min. The technology for manufacturing the calendered rubber plate used in a sound insulation cover has the advantages of simple process and low cost, and the sound insulation effect of the sound insulation cover manufactured from the calendered rubber plate is good.

The invention provides a preparation method of cubic micro/nano cuprous oxide powder suitable for ship antifouling paints, which comprises the following steps: preparing a copper solution with certain concentration and pH value, preheating to 40-50 DEG C while stirring, adding a composite dispersing agent, quickly adding a sodium sulfite solution with certain concentration, slowly and dropwisely adding a sodium carbonate solution to control the pH value of the reaction solution, continuing heating to 60-100 while stirring, reacting for 1-5 hours, and carrying out solid-liquid separation, washing and drying on the collected reaction end product to obtain the cubic micro/nano cuprous oxide powder, wherein the composite dispersing agent is prepared from gelatin and sodium dodecyl benzene sulfonate in a mass ratio of 1:1. The preparation method is simple to operate and controllable in technique. The cuprous oxide powder prepared by the method is cubic, has the particle size of 0.4-3.0 mu m, has the advantages of small specific area, slow release of copper ions, low bulk density, favorable suspensibility and low oil absorption, and is especially suitable to be used in ship antifouling paints.

The invention relates to a pair of electrochemical pliers used for developing a protein molecule electronic device and a fabricating method thereof. The fabricating method is characterized in that the surface of an insulating basal material is uniformly coated with an inner layer and an outer layer of annular conductors of nanometer-level thickness, and a nanometer isolating layer of adjustable thickness is used for isolation. The annular conductors of the inner layer and the outer layer are respectively supplied with proper voltage, and electrostatic attracting force is used for clamping protein molecules causing the protein molecules to be arranged in parallel in a fixed direction; an outer circuit is used for supplying an activating signal to the protein molecules clamped by the electrochemical pliers; the relationship between an input signal and an output signal is analyzed to obtain the inner electronic transferring system of the protein molecules and develop the electronic device of the protein molecules. The electrochemical pliers provided by the invention has light action force, the shape and the quality of the protein can not easily change, touched molecule number is high, the signal is strong, the surface regeneration is easy, the used instrument is simple, the information is on-site, and the scanning speed is high. The fabricating method can be used for developing the electronic device of the protein molecules, particularly the electronic device of the protein molecules with high-speed response ability.

The invention relates to a hot air water-absorbing carpet, comprising a water-absorbing layer, a heating device, a blowing device and a base plate; the water-absorbing layer, the heating device and the base plate are stacked sequentially from top to bottom, the blowing device is disposed in the base plate, and the water-absorbing layer is a diatom ooze layer and is vertically provided with a plurality of through holes. After a user finishes a bath and steps out of a doorway of a shower room, water on feet can be absorb-dried quickly by the water-absorbing layer of diatom ooze when the user steps on the carpet; there is hot air blown out from bottom to top, water on soles can be blow-dried, and water on legs can also be blow-dried; warmth retention is provided, user experience is improved, and people's living quality is improved.

The invention relates to a nanometer enzyme reactor prepared based on a hydroxy selective immobilization manner, a preparing method thereof and applications of the reactor. The method includes dispersing esterified graphene oxide into a concanavalin A solution, incubating at room temperature for 1-1.5 h, separating, cleaning to obtain graphene oxide-concanavalin A, dispersing the graphene oxide-concanavalin A into a chloroperoxidase solution, oscillating until the chloroperoxidase is immobilized to the graphene oxide-concanavalin A, separating and cleaning to obtain the nanometer enzyme reactor. The esterified graphene oxide the surface of which is liable to functionalize is selected as a solid-phase carrier, and the CPO (namely the chloroperoxidase) is immobilized to the esterified GO (namely graphene oxide) by adopting -OH on the surface of the CPO as immobilization sites, adopting concanavalin A as an agglutinin and based on specific recognition to hydroxy, thus preparing the nanometer enzyme reactor high in activity. The enzyme reactor is capable of simplifying industrial processing steps, shortening degradation time and increasing the efficiency when being applied for degradation.

The invention relates to a fireproofing and heat-insulation glass fiber material and a preparation method thereof and belongs to the technical field of glass fibers. The fireproofing and heat-insulation glass fiber material is composed of a glass fiber wool layer and a curing layer coating same. The glass fiber wool layer consists of medium-alkaline glass fiber wool being 0.6-3.5 [mu]m in diameterand the curing layer includes a heat-resistant adhesive and aerogel. The material is light in weight and high in strength, and has great fireproofing and heat-insulation property. The material is 0.2-9.3 mm in thickness, 40-1200 g/m2 in basis weight, and 0.02-0.035 W/m*K in heat conductivity coefficient. Meanwhile, the preparation method is simple and is low in equipment demand, and is suitable for industrial production.

The invention belongs to the technical field of chemical palladium plating, and particularly relates to a chemical palladium plating reduction agent and a chemical palladium plating solution. The chemical palladium plating reduction agent comprises one or more several kinds in hexamethylenetetramine, glucose and lactose and is green and environment-friendly, pollution of traditional hydrazine, formic acid, formaldehyde and other reduction agents to the environment is reduced, palladium deposition can be accelerated, a dense palladium film is formed, the adding quantity of palladium salt is reduced, and the cost is greatly reduced; and the chemical palladium plating solution is simple in component and high in stability, a prepared and obtained palladium layer is level in surface and high inbrightness and is suitable for large-scale industrial production, and the application prospects are wide.