17results about How to "Improve Surface Adhesion" patented technology

The invention discloses a preparation method of a composite sodium iron phosphate positive electrode material with high compaction density, which is characterized by comprising the following steps: (1) mixing a sodium source, an iron source, a phosphorus source, a carbon source and the like for preparing the composite sodium iron phosphate positive electrode material in proportion to obtain a precursor aqueous solution; (2) adding a surfactant into the precursor aqueous solution, grinding and uniformly mixing to obtain a homogeneous precursor aqueous solution; (3) carrying out drying granulation on the homogeneous precursor aqueous solution by using a spray drying technology to obtain composite sodium ferric phosphate precursor particles; and (4) performing high-temperature heat treatment on the composite sodium ferric phosphate precursor particles under the protection of inert gas to obtain the composite sodium ferric phosphate positive electrode material. The sodium-ion battery positive electrode material and the electrode plate with high compaction density can be obtained, the reversible specific capacity of the sodium-ion battery is improved, the problem of low gram capacity exertion is solved, the battery capacity is improved, and high-quality sodium-ion battery supply is provided for the field of energy storage.

The invention relates to silver paste, a preparation method thereof and a photovoltaic cell. The silver paste can be used for the photovoltaic cell. The preparation method of the silver paste comprises the following steps: adding composite resin into a solvent to form an organic carrier; adding silver powder and a cross-linking curing mixing agent into the organic carrier, and stirring to obtain initial silver paste; adjusting the viscosity of the initial silver paste and / or the fineness of the initial silver paste to obtain silver paste; wherein the composite resin comprises hydroxyl modified polyester resin. The silver paste prepared through the preparation method of the silver paste has high adhesive force, the working stability of a photovoltaic cell can be improved, and the service life of the photovoltaic cell can be prolonged.

The utility model discloses needle grasping forceps under an arthroscope, which belongs to the technical field of needle grasping forceps and comprises a forceps body, a fixed forceps rod is arranged at one end of the forceps body, an extension rod is arranged at the other end of the forceps body, a fixed forceps and a movable forceps are respectively arranged at the tail end of the extension rod, a movable groove is arranged on the inner side of the middle of the forceps body, and a movable forceps rod is arranged in the movable groove. A clamping plate and a positioning plate are arranged on the opposite sides of the fixed forceps rod and the movable forceps rod, a clamping groove is formed in the bottom of the clamping plate, a clamping block is arranged at one end of the positioning plate, a pressing block is arranged at the top of the other end of the positioning plate, and a reset spring is arranged at the bottom of the pressing block. The clamping grooves in the clamping plate are matched with the clamping blocks on the positioning plate to form a clamping state, so that the fixed forceps rod and the movable forceps rod are clamped and positioned, the positioning of the movable forceps is realized, a certain labor-saving purpose is achieved without continuously applying force by a surgeon during use, and better operation of the surgeon is facilitated.

The present invention provides a method for increasing the surface adhesion of molecular sieve particles, and an oxide layer and / or a hydroxide layer are coated on the outer surface of a Cu-SSZ-13 molecular sieve by an atomic layer deposition method; the oxide layer includes one or more of silicon oxide, aluminum oxide, titanium oxide, zirconium oxide and rare earth oxide; the hydroxide layer includes one or more of silicon hydroxide, aluminum hydroxide, titanium hydroxide, zirconium hydroxide and rare earth hydroxide. The present invention is aimed at the disadvantages that the molecular sieve catalyst has low surface adhesion and is easy to fall off after coating, and the molecular sieve is coated with an oxide layer and / or a hydroxide layer to improve the surface adhesion of the molecular sieve. It does not affect the high activity temperature window of the molecular sieve catalyst, reduces the risk of falling of the molecular sieve catalyst, and improves the service life of the catalyst, which has good application value.

The raw material compositions for preparing acrylic optical coatings and for preparing acrylic optical lenses both contain sulfur-containing aromatic acrylate compounds as shown in Formula A. The optical materials prepared from these raw material compositions, with precisely controlled refractive indices of 1.53–1.60, significantly improve the material's resistance to yellowing, optical durability, and impact resistance, meeting the application requirements of high-end optical materials. Wherein, R1 = CH2 = CH-COO, R2 = CH3, n = 2 or 3, and m = 0, 1, or 2.

The application discloses a kind of crisp leisure food with immersion coating malt dextrin device control system, it is related to food processing technical field, it is applied to immersion coating malt dextrin device.The control system includes state acquisition unit, stage control unit, lock determination unit, result output unit and parameter backwrite unit;Stage control unit controls the material to be processed to successively experience surface layer hole calling section, internal introduction section, even seepage sweeping section, edge moat section, directional side leakage section, low-energy backfill section and front solidification section, so that malt dextrin forms continuous support precursor in material interior;Lock determination unit takes ring moat state as main criterion, takes boundary state and internal support state as verification criterion, after low-energy backfill, when ring moat is not connected again bright, material edge is not sustained bright, and material pressure rebound state is not returned, it is judged that internal support skeleton lock establishment state is established;Parameter backwrite unit writes corresponding control parameters when not locked in.The system is suitable for the processing of raw materials not easy to directly make crisp chips.

The utility model discloses a whole waterproof's smartphone, including the TP cover plate, front shell subassembly, PCBA board, middle frame subassembly and battery cover that set gradually, the first radium carving line circle on the front frame of front shell subassembly is glued with TP cover plate and carries out the point gum seal, and PCBA board is installed at the back of front shell subassembly, and the second radium carving line circle on the back frame of front shell subassembly is bonded with the front frame of middle frame subassembly and seals, and the back of middle frame subassembly is bonded with battery cover and seals, and the FPC point gum groove of each antenna on front shell subassembly is glued and seals, and the earphone loudspeaker spare of two unifications is fixed in the sound cavity of front shell subassembly through dustproof waterproof spare. The line of radium carving can increase surface adhesion, improve the adhesion of glue layer after the point gum, and the FPC point gum groove of each antenna is directly glued and sealed, and the glue layer can isolate outside to realize waterproof dustproof, and can increase the pasting of antenna and front shell subassembly. Dustproof waterproof spare is used for waterproof dustproof protection to earphone loudspeaker spare.

The application provides a thermosetting viologen electrochromic solution and an electrochromic device. The thermosetting viologen electrochromic solution comprises the following components at the following concentrations: 1.5-4.5 g / mL of a diepoxy functional group molecule, 0.5-0.8 g / mL of an anhydride curing agent, 0.1-0.4 g / mL of a viologen compound, and 0.05-0.3 g / mL of a counter electrode material; the diepoxy functional group molecule is at least one selected from bisphenol f diglycidyl ether, bisphenol a diglycidyl ether and bisphenol s diglycidyl ether. The electrochromic device comprises a solid electrochromic layer formed by curing the thermosetting electrochromic solution. The application optimizes the formula, so that the electrochromic solution can achieve thermal curing while ensuring good electrochromic performance, solves the problems of easy leakage and poor safety of the viologen electrochromic device, and can be thermally cured and formed, avoiding the potential adverse effects of the ultraviolet curing method on the performance of the device.

The invention discloses a honeycomb biological carrier and a manufacturing method thereof, and relates to the technical field of sewage treatment. Comprising a supporting frame, at least one layer of honeycomb structure, a spiral outer rib and a coating, wherein a treatment space is formed in the supporting frame in a surrounding manner; the honeycomb structure is connected with the supporting frame and is arranged in the treatment space; the spiral outer rib is arranged between the honeycomb structure and the supporting frame, and the surface of the supporting frame, the surface of the honeycomb structure and the surface of the spiral outer rib are coated with the coating; the spiral outer ribs are used for increasing spiral disturbance of water flow, by arranging the spiral outer ribs, original linear or disordered motion of the water flow can be forcibly converted into rotary motion guided by the outer contours of the spiral outer ribs, and a retained water film on the surface of a carrier can be effectively damaged; and the substance exchange between the sewage and the surface of the biological membrane is changed from diffusion to convection, so that sludge and impurities are prevented from being deposited in pore channels.

The invention discloses a surface attaching type constant-temperature heat management method and system, and relates to the technical field of temperature control. The surface attaching type constant-temperature heat management method comprises the following steps that at least one heat conduction film is arranged on the outer side of a workpiece, the at least one heat conduction film is attached to the uneven surface of the workpiece for heat transfer, and a cavity of the heat conduction film is filled with heat conduction liquid or a phase change heat conduction material; one end of the heat conduction piece extends into the cavity of the heat conduction film and is in contact with the heat conduction liquid or the phase change heat conduction material for heat transfer; and the other end of the heat conduction piece is cooled or heated according to the cooling requirement or the heating requirement of the workpiece. The fitting degree between heat transfer surfaces can be improved, the heat transfer effect is improved, the heat transfer device is suitable for fitting heat transfer work of uneven surfaces of different workpieces, and the problem that in the prior art, the fitting degree between a heat conduction device and the uneven surfaces of the workpieces such as a cylindrical lithium battery is poor, and consequently the heat conduction effect is reduced is solved.

The invention relates to the field of glass, and particularly discloses a substrate and TGV through hole glass suitable for the field of semiconductor packaging and a preparation method of the TGV through hole glass. The glass is prepared from the following components: 52 to 73 percent of S < iO >, Al < 2 > O < 3 >, B < 2 > O < 3 >, MgO, Sr < O >, CaO, BaO, ZrO2 and Fe < 2 > O < 3 >. According to the glass, a glass matrix obtained through a float glass forming process is subjected to annealing and chemical strengthening, high-alumina-silica matrix glass is obtained, and then surface plasma treatment and modified silicon carbide fiber treatment are performed, so that the adhesive high-alumina-silica glass is obtained. The glass has excellent dielectric constant and expansion coefficient, keeps extremely strong light transmission on the premise of strong interface adhesion, can be used as a substrate for packaging a large-size wafer / panel, can be further plated with copper in a glass through hole technology, can improve the stability of a metal copper plating layer, and has a wide application prospect.

The invention discloses a polyurethane coating with hydrophobicity and multiple curing performance and a preparation method of the polyurethane coating. Aliphatic diisocyanate and unsaturated dihydric alcohol are used as raw materials to prepare an unsaturated polyurethane prepolymer containing-NCO end groups, then a hydroxyl-terminated silane coupling agent synthesized through sulfydryl double bond reaction is added for sealing, and the polyurethane coating is prepared. A series of silane-terminated unsaturated polyurethane is obtained through reaction and can be used for preparing a polyurethane coating with hydrophobicity and multiple curing performance; polyurethane with the main chain being a carbon chain containing double bonds and the end group being silane is synthesized, rapid ultraviolet light hardening of the surface of the coating is achieved, the end group silane rapidly migrates to the surface, the interior of the coating is crosslinked through multiple curing, the hydrophobicity, the adhesive force, the surface strength and other performance of the coating are effectively improved, and the coating has the good application prospect. The method has potential application prospects in the fields of buildings, automobiles, aerospace and the like.

This invention discloses a rare-earth-doped optical imaging film and its preparation method. The method specifically includes: providing an optical glass substrate and pre-treating its surface; sputtering a base layer onto the surface of the optical glass substrate; depositing a rare-earth-doped layer onto the surface of the base layer; etching micro / nano structures onto the surface of the doped layer; using the micro / nano structures to enhance the luminescence efficiency of the doped layer; depositing a hydrophobic layer onto the surfaces of the doped layer and the micro / nano structures; and annealing the optical glass substrate forming the base layer, doped layer, and hydrophobic layer to obtain the rare-earth-doped optical imaging film. Through optimized design of the base layer, doped layer, and micro / nano structures, the optical imaging film exhibits higher luminescence efficiency, lower light loss, and maintains stable optical properties during long-term use. Therefore, this invention solves the technical problem of the imbalance between high refractive index and low absorption loss in existing optical imaging films.

This invention discloses a graphene-reinforced TPU adhesive and its preparation process, relating to the field of polyurethane materials technology. The invention involves mixing epoxy resin and a silane coupling agent, reacting them under the catalysis of dibutyltin dilaurate to obtain a silane epoxy resin, which is then reacted with isophorone diisocyanate and polytetrahydrofuran ether diol to obtain a polyurethane prepolymer solution. Modified graphene is then added, dispersed at high speed, and a chain extender and curing agent are added. The mixture is heated to react, and after the reaction is complete, cooled to room temperature to obtain the graphene-reinforced TPU adhesive. This invention improves the mechanical strength and thermal stability of the TPU adhesive by adding modified graphene. Surface modification of graphene is achieved by using quaternary ammonium salt didodecyl dimethyl ammonium bromide as a graphene modifier. The intercalation reaction between didodecyl dimethyl ammonium bromide and graphene oxide reduces the interfacial energy between graphene and thermoplastic polyurethane, enhancing the dispersibility and barrier properties of the TPU adhesive.

The invention relates to an alkyl diphosphonic acid composition as well as a preparation and purification method and application thereof, and belongs to the technical field of preparation of alkyl diphosphonic acid compositions. The alkyl diphosphonic acid composition comprises the following components in percentage by mass: more than or equal to 90% of diphosphonic acid compound with a structural formula I, 0-10% of phosphorous acid, 0-10% of phosphoric acid, 0-10% of alkyl phosphonic acid, 0-10% of dialkyl phosphonic acid and 0-10% of organic acid, the alkyl diphosphonic acid composition can be applied to metal surface anti-corrosion treatment, such as deposition on iron, aluminum, copper and zinc to form a self-assembled single layer or organic phosphonate multilayer, so that the metal corrosion resistance is enhanced, and the inhibition effect on metal corrosion is achieved.

This case involves a base film used for MLCC release film and its preparation method. The PET film adopts ABA three-layer structure co-extrusion, and after longitudinal stretching, it is first coated and then transversely stretched, and finally pulled and rolled; wherein, the raw material of layer A includes 70 to 90 parts of PET slices and 10 to 30 parts of special masterbatch; the raw material of layer B is PET slices; the special masterbatch is made of KH550 modified inorganic filler and semi-aromatic polyamide. The present invention adopts ABA three-layer structure to prepare PET film. First, special masterbatch is added to the A layer structure with PET as the basic material, so that the film material has excellent mechanical properties and heat resistance, and also has low roughness, avoiding the risk of inorganic particles precipitation; in addition, a layer of antistatic coating liquid is coated on the longitudinally stretched sheet, and the coating is firmly bonded, which improves the antistatic performance of the film and can be used as the base film of MLCC release film.

The application belongs to the technical field of polymer films, and relates to a polytetrafluoroethylene vacuum bag film and a preparation method and application thereof. The preparation method comprises the following steps: first, turning a polytetrafluoroethylene rod blank to obtain a polytetrafluoroethylene turned film; then, adopting a hot roller to roll the obtained polytetrafluoroethylene turned film at 320-420 DEG C to obtain a polytetrafluoroethylene rolled film; finally, contacting one side of the obtained polytetrafluoroethylene rolled film with a sodium-naphthalene tetrahydrofuran treatment solution with a molar concentration of 0.2-0.8 mol / L for not less than 30 s to obtain the polytetrafluoroethylene vacuum bag film. The polytetrafluoroethylene vacuum bag film prepared by the above preparation method has a smooth and flat film surface and no obvious wrinkles, one side can keep the original non-stickiness and excellent demolding characteristics of polytetrafluoroethylene, and the other side has good surface adhesion, can be reliably bonded with a sealing rubber strip or a mold frame, and is suitable for a composite material forming process.