324 results about "Hydrophilic coating" patented technology

To provide a basin area member which has high hydrophilic nature, matte appearance and can suppress slipperiness.SOLUTION: A basin area member comprises: a substrate; and a coating layer covering the substrate. The coating layer has: a ground layer provided on a surface of the substrate; and a surface layer provided on a part of a surface of the ground layer. The coating layer has: a first area where the ground layer is covered with the surface layer; and a second area where the ground layer is not covered with the surface layer. The surface layer includes: a coating film formed of a cured object of a hydrophilic coating in the first area; and an aggregate formed by aggregation of multiple particles in the coating film. The aggregate has parts where two or more particles overlap in a lamination direction. A ratio of an area of the second area to a total of areas of the first area and second area in viewing along the lamination direction is 1.6% or more and 50% or less in the basin area member.SELECTED DRAWING: Figure 3

The utility model relates to coating equipment, and discloses hydrophilic coating coating equipment for medical catheters, which comprises a dip-coating module, a lifting module and a curing module, the dip-coating module comprises a moving frame and a horizontal driving device, a solution tube is mounted on the moving frame, the horizontal driving device is in driving connection with the moving frame, and the lifting module is connected with the curing module. The lifting module comprises a lifting driving device, a rotating assembly and a mounting frame, the mounting frame is used for mounting a medical catheter and connected with the lifting driving device, the rotating assembly is used for driving the medical catheter to rotate, the mounting frame is located above the dip-coating module, the curing module comprises an ultraviolet lamp set, and the ultraviolet lamp set is located on the side face of the lifting module. According to the utility model, the hydrophilic coating can be efficiently and uniformly formed on the medical catheter.

The invention belongs to the field of functional textile materials, and provides a one-way moisture-conducting breathable fabric based on a vinyl elastomer and a preparation method of the one-way moisture-conducting breathable fabric based on the vinyl elastomer. The hydrophilic coating contains a vinyl elastomer matrix, polyvinyl alcohol, a zwitterionic polymer and a cross-linking agent, the hydrophobic coating contains a vinyl elastomer matrix, vinyl-terminated polydimethylsiloxane, polyhedral oligomeric silsesquioxane and other components, the coatings are only attached to the surfaces of yarn fibers and do not block pores, and a wettability gradient structure is formed; the excellent performance that the static contact angle gradient in the thickness direction is larger than or equal to 50 degrees, the capillary water absorption height from the inner side to the outer side is larger than or equal to 3.0 cm / 10 min, the capillary water absorption height from the outer side to the inner side is smaller than or equal to 1.0 cm / 10 min, the moisture permeation amount is larger than or equal to 5000 g.m.24 h, and the air permeability after curing is 65% or above of a fabric base material is achieved, the technical problem that an existing fabric is insufficient in moisture conductivity and air permeability is solved, and wide application value is achieved.

This invention belongs to the field of membrane material preparation and modification technology, and relates to a method for pre-wetting the surface of a hydrophobic ceramic membrane. The ceramic membrane is immersed in a cyclohexane solution of perfluorooctyltrimethoxysilane for 3-4 hours. After immersion, the ceramic membrane is dried in an oven. An ethanol solution is forced to circulate through the ceramic membrane to pre-wet the separation layer. The pre-wetting process proposed in this invention is simple, highly controllable, and easily scaled up to pre-wet multi-channel hydrophobic ceramic membranes. This invention achieves coarse adjustment of the wetting degree by controlling the concentration of the ethanol-water solution, and further fine adjustment by combining the circulation time of the ethanol-water solution, thus achieving more precise control of the wetting degree and optimal improvement of the uniformity of the hydrophilic coating.

The invention relates to the technical field of cabinet heat dissipation, and discloses a low-energy-consumption water-cooling radiator for a large-scale cabinet, and the radiator comprises a cabinet which serves as a basic component and is used for bearing and connecting a lower structure; the radiator is arranged in the cabinet and is used for radiating heat of the cabinet body; the low-resistance connecting structure is connected with the cabinet and the radiator; the integrated heat dissipation structure is attached to the heating surface of the cabinet; the combined type circulation pipeline comprises a liquid inlet pipe, a liquid outlet pipe and a multi-stage flow divider, and the multi-stage flow divider is connected with an external cooling liquid supply system; and the self-adaptive flow control valve dynamically adjusts the flow of the cooling liquid according to the internal temperature of the cabinet. The invention has the following beneficial effects: when a cooling liquid flows through, the divergent cross section of the main flow channel layer accelerates fluid diffusion and reduces thermal resistance of a boundary layer, the flow deflectors and the spiral turbulent flow fins cooperate to make the cooling liquid better contact with the nano hydrophilic coating, the nano hydrophilic coating reduces a liquid drop contact angle, the cooling liquid forms an ultrathin liquid film on the flow channel wall, and the heat resistance of the boundary layer is improved. And vaporization latent heat release is accelerated.

The invention discloses a kind of hydrophilic and hydrophobic integrated membrane material and preparation method thereof for desalination of seawater, a hydrophilic solution with a concentration of 0.1 10 mol / L is coated on one side of substrate to obtain a hydrophilic coating;a hydrophobic solution with a concentration of 0.1 10 mol / L is coated on the other side of substrate to obtain a hydrophobic coating;the substrate coated with the coating is placed in a plasma reactor, a carrier gas is passed through, and a power supply parameter is adjusted to trigger a discharge to obtain a desalination membrane material;the edge of the desalination membrane material is subsequently subjected to water isolation treatment. A kind of hydrophilic and hydrophobic integrated membrane material and preparation method thereof for desalination of seawater disclosed by the present invention, by coating on the surface of the material, plasma modification technology is then utilized to prepare a desalination membrane material driven by solar energy, integrating hydrophilic and hydrophobic characteristics in different sides, with antifouling property, efficient desalination can be carried out, and fresh water output is increased.

The invention discloses an anti-reflection wear-resistant nano hydrophilic anti-fog lens and a preparation method thereof, and the method comprises the steps: carrying out the injection molding, ultrasonic deep cleaning and surface cleaning treatment of the lens, and obtaining a clean substrate layer; preparing an organic silicon resin hardening liquid, coating the surface of the substrate layer with the organic silicon resin hardening liquid, and curing to obtain an organic silicon resin layer; preparing a nano hydrophilic coating; cleaning the surface of the organic silicon resin layer, keeping the surface dry, and activating by using plasma equipment; and coating the surface of the activated organic silicon resin layer with a nano hydrophilic coating, and then baking at the temperature of 40-120 DEG C for 6-0.5 h to obtain the nano hydrophilic coating. According to the invention, a nano hydrophilic coating containing modified silicon dioxide is adopted to be in covalent bond connection with an active group in the organic silicon resin layer, so that lasting hydrophilic modification of the substrate layer is realized, a water drop contact angle is less than 6 degrees, super-hydrophilicity can be presented without illumination, and the super-hydrophilic group has low chemical activity, is not easy to pollute and is convenient to clean; the service life is long.

The invention discloses a coating technology of a self-cleaning glass coating, which adopts a water-based paint containing nano TiO2 / SiO2 hybrid sol (core-shell structure), a polyurethane modified silane coupling agent and a flatting agent, and forms a 150-300nm super-hydrophilic coating (the contact angle is less than or equal to 5 degrees) on the surface of glass through a synergistic process of gradient curing (three-stage heating at 80-150 DEG C) and ultraviolet radiation (a main wave band of 365nm and an auxiliary wave band of 280-320nm). The technology breaks through the bottleneck that low-temperature curing and high adhesive force are difficult to be compatible, and the contact angle of the coating is still lt after damp-heat aging; 10 degrees, the light transmittance loss lt; and 3%, the photovoltaic module is suitable for building curtain walls, automobile windshields and photovoltaic modules. The method comprises the following steps: (1) bonding a polyurethane chain segment with a mechanical interlocking enhanced interface through a hydrogen bond; (2) the SiO2 shell layer improves the TiO2 quantum efficiency; and (3) equipment zoned humidity control and inert atmosphere oxidation inhibition are realized, and unification of self-cleaning performance, optical performance and mechanical durability is realized by an environment-friendly process.

The invention discloses porous carbon with a gradient structure, a preparation method of the porous carbon and application of the porous carbon in a negative electrode of a lithium ion battery. The porous carbon has a gradient structure with compact micropores on the surface and loose macropores inside. The preparation method of the porous carbon comprises the following steps: carrying out oleophylic modification on SiO2 to obtain hydrophobic SiO2; carrying out hydrophilic coating on NH4Cl to obtain PVP (Polyvinyl Pyrrolidone) coated NH4Cl; the preparation method comprises the following steps: mixing coal pitch, methylbenzene, oleic acid, hydrophobic SiO2 and PVP (at) NH4Cl to form a suspension; preparing a spherical precursor by a micro-fluidic emulsification method; and carbonizing, sequentially carrying out oxygen plasma treatment and HF solution etching, and removing the template to obtain the porous carbon with the gradient structure. The gradient distribution of the template and the pore-forming agent is realized through surface modification difference and a microfluidic technology, the pore structure and the particle size can be accurately regulated and controlled, the process is simple, the compatibility is high, the prepared porous carbon can be used as a substrate for a silicon-carbon composite negative electrode material, the volume expansion of silicon can be effectively buffered, and the service life of the silicon-carbon composite negative electrode material is prolonged. And the first coulombic efficiency, the specific capacity and the cycling stability of the lithium ion battery are improved.

The invention provides high-caking low-dust tofu cat litter and a preparation method thereof.The high-caking low-dust tofu cat litter is prepared from, by mass, 40%-60% of bean dreg fiber, 15%-25% of antibacterial high-capacity ammonia adsorption modified zeolite, 8%-15% of a composite binder, 1%-2% of compound vegetable gum, 1%-5% of a hydrophilic coating agent, 0.5%-3% of a food-grade dust suppressant and the balance water. According to the invention, agglomeration is enhanced through composite bonding and zeolite embedding, dust is reduced through a triple dust control process, long-acting deodorization and antibiosis are realized by virtue of modified zeolite, the finished product block mass is free of looseness, low in dust, deodorant and antibacterial, and the process is simple, convenient, easy to industrialize, capable of being naturally degraded and suitable for daily cleaning and nursing scenes of family pet cats.

The invention relates to the technical field of biomedical materials, and particularly discloses a tracheal catheter with antibacterial and lubricating functions and a preparation method thereof.According to the tracheal catheter, 2, 3-epoxypropyltrimethylammonium chloride is adopted for modifying polyethyleneimine, and the antibacterial performance of the polyethyleneimine is enhanced; then modified polyethyleneimine and tannic acid are adopted as a composite antibacterial coating, so that the tracheal catheter has good antibacterial activity on various bacteria; then N-vinyl pyrrolidone and modified fucoidin are adopted as functional monomers, ultraviolet-initiated polymerization is conducted, the hydrophilic lubricating coating is obtained, sulfuric acid groups in the hydrophilic lubricating coating are negatively charged and can attract quaternary ammonium salt cations in the antibacterial coating through electrostatic interaction, and therefore the hydrophilic lubricating coating is formed. Compared with a single polyvinylpyrrolidone (PVP) hydrophilic coating which is easy to fall off, the hydrophilic lubricating coating disclosed by the invention effectively solves the problem that the traditional hydrophilic coating is easy to fall off.

The invention discloses a hydrophilic coating as well as a preparation method and application thereof, and belongs to the technical field of coating materials. The hydrophilic coating comprises a base coating and a lubricating coating attached to the base coating, the thickness of the base coating is 0.1-120 [mu] m, and the thickness of the lubricating coating is 0.1-100 [mu] m. The lubricating coating is prepared from the following components in percentage by mass: 10 to 20 percent of thiolated hyaluronic acid, 40 to 50 percent of sodium hyaluronate, 10 to 20 percent of sulfobetaine, 5 to 10 percent of ethanol and the balance of water. 100 parts by mass of the substrate coating comprise the following components: 25-35 parts of polyimide, 5-15 parts of polyvinylpyrrolidone, 5-8 parts of modified chitosan, 1-3 parts of a cross-linking agent and the balance of a solvent. According to the hydrophilic coating provided by the invention, the defects in the prior art are successfully overcome through a specific multi-layer structural design and a specific material ratio, and the prepared hydrophilic coating has excellent hydrophilicity, lubricity and adhesive force.

The invention discloses a modified sulfonated carbon material and a super-hydrophilic coating prepared from the modified sulfonated carbon material, and belongs to the technical field of hydrophilic coatings. The modified sulfonated carbon material is prepared from the following raw materials in parts by weight: 1 to 10 parts of sulfonic carbon material, 1 to 15 parts of inorganic nano filler, 10 to 20 parts of organic hydrophilic filler, 30 to 60 parts of organic solvent, 0.1 to 20 parts of water and 0.5 to 5 parts of catalyst. The preparation method comprises the following steps: firstly, adding the sulfonyl carbon material, the inorganic nano filler and the organic hydrophilic filler into the organic solvent, then adding water, stirring and ultrasonically dispersing for 10-30 minutes, adding the catalyst into the obtained mixed liquid, continuously reacting for 1-6 hours at 70-90 DEG C, and carrying out suction filtration and washing to obtain the modified sulfonyl carbon material. By modifying the carbon material, the obtained super-hydrophilic coating has excellent corrosion resistance and hydrophilic performance.

The invention relates to the technical field of hydrophilic coating equipment, in particular to LED hydrophilic coating equipment which comprises a machine box, a clamp used for conveniently and rapidly clamping a product is arranged at the top of the machine box, a solution pipe bin is arranged at the bottom of the machine box, and a lamp set used for irradiating the outer surface of the product is arranged in the machine box. A first driving assembly and a second driving assembly are additionally arranged in the machine box, the first driving assembly is used for driving the clamp to ascend and descend in the vertical direction, the second driving assembly is used for driving a product to rotate in the horizontal direction, and the clamp comprises a supporting plate and a plurality of clamping heads. The multiple chucks are evenly distributed on the top of the supporting plate at intervals and used for clamping and positioning products. The purpose of the invention is to optimize the product coating process, so that the solution of the coating can be more uniformly coated to the peripheral side of the product, thereby being beneficial to improving the uniformity of the product coating, and being beneficial to guaranteeing the quality of subsequent curing molding of the product.

The pleating and folding integrated device comprises a base, a rotating disc and a plurality of pleating heads, and the base is used for clamping and fixing a balloon; the turntable is rotatably connected to the base and is used for realizing rolling, holding and folding of the balloon; the multiple pleating heads are movably installed on the rotary disc so that pleating of the balloon can be achieved. After the balloon is pleated, the balloon is directly folded, the folding effect is better, the step of transferring the balloon in the pleating and folding process is omitted, the situation that the balloon is scratched due to the fact that the balloon is transferred between different working heads can be avoided, the phenomenon that a hydrophilic coating or a medicine coating of the balloon is incomplete or falls off is prevented, and the balloon is more stable in performance. The product pleating and folding qualification rate is improved, and the operation effect is prevented from being affected.

The invention discloses a ventricular drainage tube with a hydrophilic coating and a packaging device of the ventricular drainage tube, and relates to the technical field of medical instruments, and the ventricular drainage tube comprises a drainage tube body which is of a hollow tubular structure; the drainage end is arranged at one end of the drainage tube body, and a plurality of drainage holes are formed in the drainage end; the connecting end is arranged at the other end of the drainage tube body, and a connector used for being connected with an external drainage device is arranged at the connecting end; the outer surface of the drainage tube body is coated with a hydrophilic coating. According to the ventricular drainage tube with the hydrophilic coating, the drainage tube body is of a hollow tubular structure, drainage liquid can enter the drainage tube body through the drainage holes in the drainage end and is drained out of a body through an external drainage device, the hydrophilic coating is arranged on the surface of the drainage tube, friction between the drainage tube and tissue is reduced, and the drainage effect is improved. Meanwhile, substance attachment is inhibited, the drainage effect is improved, and the infection risk is reduced.

The invention discloses waterborne polyester as well as a preparation method and application thereof. The preparation method comprises the following steps: putting an intermediate compound into a pre-polycondensation product to carry out polycondensation reaction; wherein the pre-polycondensation product is a product obtained by adding an auxiliary agent into an ester and carrying out polycondensation reaction until the hydroxyl value reaches 80 mgKOH / g-100 mgKOH / g, the chemical structural formula of the ester is shown in the specification, R1, R2 and R3 are independently selected from C4-C12 alkyl groups or aryl groups, R4 and R5 are independently selected from C2-C9 alkyl groups; the chemical structural formula of the intermediate compound is shown in the specification, R6 is C3-C6 alkyl, and R7 is methyl or ethyl. The super-hydrophilic coating prepared from the water-based polyester prepared by the method has super-hydrophilicity, high wear resistance and long service life, and is suitable for the fields of building glass, medical equipment, automobile glass, electronic screens and the like which require antifogging, self-cleaning and durability requirements.

The utility model discloses an elastic super-selection loach type bourdon tube lens system which comprises an operation portion and an insertion catheter connected with the operation portion, the insertion catheter is internally provided with at least a first channel, a second channel, a third channel and a fourth channel, a lens assembly is arranged in the third channel, and the fourth channel is internally provided with a second channel. An elastic metal wire is arranged in the tube wall of the insertion catheter, the elastic metal wire is spirally arranged in the length direction of the insertion catheter, and a hydrophilic coating is further arranged on the periphery of the insertion catheter. According to the elastic super-selection loach type bourdon tube lens system, the structure of the insertion catheter is improved, so that the elastic super-selection loach type bourdon tube lens system has better flexibility and strength, not only is good in torsion control performance and convenient to operate, but also is provided with a thin-wall large-cavity structure, and internal pipelines or tube bundles are convenient to arrange.

The utility model relates to the technical field of medical equipment, in particular to a high-torsion-control soft-head ultra-smooth distance-measuring urinary mixed guide wire, an inner core of the guide wire is in a polygonal oval shape, the inner core of a soft head part is ground and processed into a polygonal oval gradually-changed slender inner core, and the farthest side end is in a flat polygonal oval slender shape. The top end is welded into a round ball head through plasma, a multilateral oval coil and a far-side multilateral oval coil are wound on an inner core of the guide wire soft head portion, the guide wire soft head portion and the guide-in section plastic-coated sleeve are made of polyurethane materials coated with hydrophilic coatings and consistent in color, the color of the guide wire soft head portion and the guide-in section plastic-coated sleeve is obviously different from that of the handheld operation section, and the handheld operation section plastic-coated sleeve is made of hydrophobic polytetrafluoroethylene. A positioning ranging ring or a ranging section is provided. According to the guide wire, the head flexibility, the tracking performance and the twisting control performance of the guide wire can be improved, the high lubricity of the soft head and the leading-in section is kept, it is guaranteed that the handheld operation section is easy to hold and operate, the guide wire can smoothly pass through a narrow obstructive diseased region, a user is accurately assisted in ranging under endoscope direct vision, and treatment is more accurate.

This invention provides a flexible pressure sensor with a hydrophobic-philic-hydrophobic structure and its fabrication method. The flexible pressure sensor includes a protective layer, an electrode layer, and a sensing layer. The protective layer comprises a first hydrophobic coating, a first hydrophilic coating, and a second hydrophobic coating sequentially distributed. The electrode layer is composed of a flexible, breathable, and conductive substrate. The sensing layer includes a first flexible, breathable support. The first hydrophobic coating is adjacent to the electrode layer. The resulting flexible pressure sensor with a hydrophobic-philic-hydrophobic structure possesses excellent waterproof and moisture-proof properties, breathability, and high sensitivity (>8.9 kPa). ‑1 Furthermore, its sensor signals exhibit good long-term stability.

Provided are a use of a Janus ceramic membrane in a dispersion-intensified bubble aeration process, and a preparation method of the Janus ceramic membrane. The Janus ceramic membrane is prepared as follows: a hydrophobic group is in situ grafted on a Al2O3 ceramic membrane as a substrate membrane through impregnation of a perfluoroalkylsilane (FAS) to prepare a hydrophobic ceramic membrane, and then a hydrophilic coating polydopamine (PDA) is formed through unilateral asymmetric surface deposition of dopamine (DA) to produce the Janus ceramic membrane for bubble aeration. The Janus ceramic membrane has asymmetric wettability. The Janus ceramic membrane not only has the unique properties of both hydrophilic and hydrophobic ceramic membranes, but also can improve the defects of hydrophilic and hydrophobic ceramic membranes to allow a synergistic effect, which improves the bubble aeration performance of the membrane in a gas-liquid dispersion process.

The application discloses a moisture-absorbing and sweat-releasing polyester low-elasticity filament, which comprises 85-95 parts of a copolymer type moisture-absorbing modified polyester chip, 3-8 parts of toughening compatible master batch and 2-7 parts of anti-oxidation lubrication functional master batch, and a preparation method of the moisture-absorbing and sweat-releasing polyester low-elasticity filament, which comprises the following steps: S1, drying raw materials; S2, melt extrusion; S3, pre-setting of a special-shaped section; S4, spinning cooling; S5, stretching and elasticizing; S6, wave curling setting; and S7, winding forming. According to the application, the section structure of the polyester low-elasticity filament is improved, the symmetrical crescent concave groove penetrating through the axial direction is formed, the natural capillary wetness guide path is constructed according to the inherent form of the filament body, the modification of the chemical hydrophilic coating is not needed, the integrated section groove structure is stable, the appearance can be kept complete after the weaving friction and multiple water washing, the long-lasting wicking water conveying capacity of the fabric is endowed from the fiber origin, and the disadvantage of the wetness performance attenuation after long-term use is avoided.

The invention discloses a polymer hydrophilic coating in the field of biomedical materials, a preparation method of the polymer hydrophilic coating and application of the polymer hydrophilic coating in medical catheters. The coating achieves excellent performance through the synergistic effect of two newly designed modified compounds. Wherein the phosphorylcholine silane functionalized polyethyleneimine is used as a matrix material and provides hydrophilicity and anticoagulant activity; and the nano silicon dioxide anchored polyhexamethylene biguanide is used as a functional filler, so that the coating is endowed with antibacterial property and mechanical enhancement. During preparation, all the components are sequentially dissolved in water to form a uniform solution, transparent sol is formed through silane hydrolysis, then the pretreated guide pipe is subjected to dip coating, and a final product is obtained through preheating, ultraviolet light curing and heat curing treatment. The coating obviously reduces the surface friction coefficient, has lasting hydrophilicity, efficient antibacterial property and excellent blood compatibility, is firmly combined with a base material, and is particularly suitable for surface functional modification of various interventional medical catheters.

The invention relates to the technical field of medical instruments, in particular to a hydrophilic coating groove round hole drainage tube and a preparation method thereof, and the preparation method comprises the following steps: S1, preparing a groove round hole drainage tube; s2, preparing a bottom layer coating solution; s3, preparing a surface layer coating solution; and S4, preparing the hydrophilic coating groove round hole drainage tube. According to the hydrophilic coating groove round hole drainage tube and the preparation method thereof, the outer wall of the drainage tube is coated with the hydrophilic coating, after the outer wall hydrophilic coating is activated, the friction resistance between the drainage tube and human tissue can be remarkably reduced, the inner wall of the drainage tube is coated with the hydrophilic coating, after the inner wall hydrophilic coating is activated, the flow resistance between liquid and the inner wall of the drainage tube can be reduced, and the drainage tube has the advantages that the flow resistance is reduced; due to the unique groove round hole design, blocking prevention, bending resistance and extrusion resistance are achieved, the drainage efficiency of the drainage tube is remarkably improved, and continuity and stability of drainage can be guaranteed.

The utility model discloses gas -liquid separation devices are used in machine pumping liquid gas recovery, belong to oil and gas exploitation equipment technical field, the present application sets up a variety of separation mechanism, including buffer mechanism, positive rotation separation subassembly, reverse rotation separation subassembly and condensing mechanism, wherein buffer mechanism is used for preliminary separation gas -liquid mixture and prevents liquid splashing, and the positive rotation separation subassembly and reverse rotation separation subassembly that are equipped with hydrophilic coating are used for the centrifugal force that produces simultaneously produces centrifugal force and throws out the water drop that condenses on its surface to the upward flow guiding natural gas, and the positive reverse flow guiding design can make hydrophilic coating and gas fully contact, increase condensation efficiency, and the condensing mechanism further reduces the moisture content in natural gas through condensing water removal operation, and the moisture in natural gas can be better removed through the cooperative operation of multiple separation mechanisms, which is convenient for subsequent treatment and storage of natural gas.

The present application relates to the field of cabinet heat dissipation technology and discloses a low-energy water-cooled radiator for large cabinets, comprising: a cabinet, which serves as a basic component for supporting and connecting lower structures; a radiator, which is installed inside the cabinet for heat dissipation of the cabinet; a low-resistance connection structure, which connects the cabinet and the radiator; an integrated heat dissipation structure, which is fitted and installed on the heating surface of the cabinet; a composite circulation pipeline, which includes a liquid inlet pipe, a liquid outlet pipe and a multi-stage diverter, wherein the multi-stage diverter is connected to an external coolant supply system; and an adaptive flow control valve, which dynamically adjusts the coolant flow rate according to the temperature inside the cabinet. The beneficial effects of the present invention are as follows: when the coolant flows through, the gradually expanding cross-section of the main channel layer accelerates fluid diffusion and reduces the boundary layer thermal resistance. At the same time, the guide vanes and spiral spoiler fins cooperate to enable the coolant to better contact with the nano-hydrophilic coating. The nano-hydrophilic coating reduces the contact angle of the droplets, allowing the coolant to form an ultra-thin liquid film on the channel wall, accelerating the release of latent heat of vaporization.

A hydrophilic composition that includes at least one of an organic silicon compound represented by formula (1), a condensate of an organic silicon compound represented by formula (1), and the product of reacting an organic silicon compound represented by formula (1) and metal oxide particles makes it possible to obtain a hydrophilic coating film that has excellent durability. (In the formula, the R1s each independently represent a hydrogen atom, a C1–10 alkyl group, or a C6–10 aryl group, the R2s each independently represent a C1–10 alkyl group or a C6–10 aryl group, X represents a hydrogen atom, a k-valent metal cation, or an ammonium cation, k is 1 or 2, provided that k is 1 when X is a hydrogen atom or an ammonium cation, m is an integer from 1 to 10, inclusive, and n is an integer from 1 to 3, inclusive.)

The invention discloses a moisture-absorbing and quick-drying cool-feeling fabric and a preparation method thereof, and relates to the technical field of fabrics, and the technical scheme is characterized in that the fabric is obtained by interweaving multi-component yarns; the multi-component yarns comprise 40S imitated cotton yarns, 26S fine compact yarns and 75D Sorona yarns; the fabric comprises 40-45 wt% of cotton and 55-60 wt% of polyester in percentage by mass; wherein the 40S imitation cotton yarns are hydrophilic modified imitation cotton yarns grafted by carboxyl modified acrylate monomers. According to the invention, the 40S imitated cotton yarn is subjected to microporous spinning and carboxyl modified acrylate monomer grafting, and is coordinated with cross-shaped special-shaped section spinning of the 26S refined compact yarn and interweaving of the fluoride-free hydrophilic coating and the 75D Sorona yarn, so that the moisture-absorbing and quick-drying effects are remarkably improved, the functional stability is enhanced, and the moisture-absorbing and quick-drying effects are improved. The effect of improving the durability and the cool feeling of the fabric is achieved.

The present technology relates to: a hydrophilic film used for, for example, a hydrophilic coating of an optical component; an antireflective film; a camera; and a film formation method. The purpose of the present technology is to provide: a hydrophilic film that has excellent optical transparency and abrasion resistance and that can be reversibly hydrophilized; an antireflective film; a camera; and a film formation method. A hydrophilic film according to the present technology comprises a substance in which a silicon oxide and a metal oxide having a structure represented by M2O3 are compounded, wherein M is a metal element. In the hydrophilic film according to the present technology, polarization occurs between oxygen atoms and atoms of the metal element, and the atoms of the metal element are negatively charged.

The invention relates to hydrophilic coating equipment for an angiographic catheter and a coating method, and belongs to the technical field of interventional medical instruments. The equipment comprises a cabinet body, two solution tanks, a guide pipe dip-coating curing mechanism and a first moving module, the guide pipe dip-coating curing mechanism comprises a guide pipe dip-coating assembly, a second moving module and a curing assembly. The catheter dip-coating assembly comprises a supporting thin tube capable of extending into an inner cavity of the angiographic catheter and a blocking piece at the far end of the supporting thin tube. The curing assembly comprises an air blowing unit arranged around the angiographic catheter and a pre-curing light source. In the process that the angiographic catheter is lifted upwards from the solution tank, the air blowing unit blows air to the outer surface of the catheter, and meanwhile the pre-curing light source conducts irradiation curing. According to the method, blowing and pre-curing are combined, the sagging phenomenon of the hydrophilic solution caused by gravity is effectively restrained, and therefore the problems that the thickness of a coating is not uniform and the end of the catheter is accumulated are solved, and the uniformity and quality stability of the coating are improved.