47 results about "Hydrophilic coating" patented technology

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.

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.

Disclosed is a display device including a display panel including a first area and a bending area adjacent to the first area, the bending area having a predetermined radius of curvature, a functional layer disposed on the display panel and overlaps the first area on a plane, and a bending protecting layer disposed on the display panel and wherein at least a portion of the bending protecting layer overlaps the bending area on a plane. The functional layer includes a main part overlapping the first area and a hydrophilic coating part disposed between the main part and the bending protecting layer. The at least a portion of the bending protecting layer is spaced a predetermined distance from the hydrophilic coating part.

The application discloses a microwell plate assembly and application thereof. The microwell array plate assembly comprises a bottom plate provided with a plurality of microwells, the inner wall and bottom of the microwells are provided with a hydrophilic coating, and the top end is provided with a hydrophobic coating; a top plate capable of being fixed to the bottom plate, and the side of the top plate facing the bottom plate is provided with a hydrophobic coating. The application is provided with a hydrophobic coating on the side of the top plate facing the bottom plate, a hydrophilic coating on the inner wall and bottom of the microwells of the bottom plate, and a hydrophobic coating on the top end, water phase medium can be used to infiltrate the microwells, oil phase medium can be used to seal the microwells, the microwells can be controllably sealed and opened, single cells and the like can be effectively captured and treated, cell free interferences can be prevented, meanwhile, the microwells can be repeatedly sealed and opened through replacement of the water phase medium and the oil phase medium, reagents can be replaced and added, and the like, and the operation is convenient.

This invention discloses a manufacturing process and application of a two-way shape memory alloy wire for interventional adjustable guidewires, relating to the field of medical device material preparation technology. The manufacturing method includes Ni-Ti-Nb ternary alloy proportioning, vacuum melting, die forging and hot rolling, multi-pass cold drawing combined with intermediate annealing, solution treatment and constrained aging, and thermomechanical cycle training to produce a two-way shape memory alloy wire with a diameter of φ0.2-0.8mm. This wire can achieve 180° bending upon heating and straightening upon cooling. Finally, the trained alloy wire is integrated with a guidewire and coated with a hydrophilic coating. The alloy wire prepared by this process has a high shape recovery rate, a phase transformation temperature suitable for the human body (37~45℃), and can achieve reversible bending deformation from 0 to 180°. It also possesses excellent flexibility, fatigue resistance, and biocompatibility. This adjustable guidewire is suitable for interventional surgeries in vascular and urinary systems.

This invention provides a display panel, a method for manufacturing the display panel, and a display device. The display panel includes a substrate, which includes a first surface and a second surface disposed opposite to each other, and a side surface connecting the first surface and the second surface. The first surface is located on one side of the light-emitting surface of the display panel. The first surface includes a first display area, a second display area, and a side trace connection area. The side trace connection area is located on at least one side of the first surface, and the second display area is located between the first display area and the side trace connection area. The second display area includes multiple pixel areas, each pixel area including a first area and a second area. The first area is used to set pixel units, and the first surface of the substrate corresponding to the second area is provided with a hydrophilic coating, a groove, or a sacrificial layer. The display panel provided by this invention solves the problem of easy damage to the substrate surface during peeling off residual adhesive, leading to low yield of side traces, by providing a hydrophilic coating, a groove, or a sacrificial layer at the interface between the side trace and the first surface of the substrate.

The utility model belongs to aviation fluid conveying component technical field especially, it is a kind of airplane dry metal pipe, including the function inner layer, support intermediate layer and protective outer layer that are sequentially arranged from inside to outside, the function inner layer, support intermediate layer and protective outer layer are integrally formed by 3D printing technology, metallurgical combination is formed between each layer, the inner wall of function inner layer is coated with hydrophilic coating, the outer surface of protective outer layer is coated with oxidation-resistant coating. This airplane dry metal pipe, by setting function inner layer, improve dry efficiency and reliability double promotion, the honeycomb micropore (50-200 μm) of function inner layer and axial water guide groove form "adsorption-dredge" closed loop, cooperate hydroxyapatite hydrophilic coating, moisture adsorption rate is improved by more than 30%, humidity in pipe can be stably controlled below 5%, solve the technical problem that the existing dry metal pipe manufacturing process limit, function structure is difficult to integrate.

According to the features of the present invention for achieving the above-mentioned purpose, the present invention comprises a first step of polishing defects on the surface of an automobile using a wool pad coated with a first polishing agent, a second step of hydrophilically coating the surface of the automobile using a polyester-based urethane foam pad coated with a second polishing agent after polishing, and a third step of polishing the surface of the automobile using a microfiber pad coated with a curing agent after hydrophilic coating, wherein the polishing of the first step is characterized by attaching the wool pad coated with the first polishing agent to a position eccentrically offset from the centerline of the drive shaft of a polisher by 10 to 30 mm and rotating it at a speed of 3,500 to 4,500 rpm for 10 to 20 minutes.

The present invention addresses the problem of providing a condensation-reactive microgel dispersion which is capable of forming a film having excellent water resistance and hydrophilicity by being used together with a film-forming component, and which has excellent storage stability. One aspect for solving the above problem is a condensation-reactive microgel dispersion having: a microgel (G) comprising a hydrophilic shell part (S) and a core part (C) containing a polymer of an ethylenically unsaturated monomer; and a medium (M) comprising water and / or a hydroxy group-containing organic solvent, wherein the hydrophilic shell part (S) imparts dispersion stability to the core part (C) in the medium (M), the mass fractions of the core part (C) and the hydrophilic shell part (S) used in forming the microgel (G) and that of the medium (M) satisfy 0.05 ≤ ((C) + (S)) / (M) ≤ 1, and the condensation-reactive microgel dispersion has a ΔNV (%) of 5-50%, the ΔNV (%) being represented by [(NV105ºC − NV150ºC) / NV150ºC] × 100.

This invention discloses a glass slide for preventing cross-infection and its preparation method, relating to the field of glass slide technology. The preparation method includes the following steps: S1: Pre-treating a porous glass slide using plasma technology to obtain a pre-treated porous glass slide; S2: Mixing hydrophobic silica sol, hydrogen-containing silicone oil, vinyltriethoxysilane, platinum catalyst, inhibitor, and isopropanol evenly to obtain a superhydrophobic coating; S3: Mixing hydrophilic silica sol, polyethylene glycol, and isopropanol evenly to obtain a hydrophilic coating; S4: (1) Coating the superhydrophobic coating onto the outer area of ​​the pores of the pre-treated porous glass slide and drying it to form a hydrophobic layer; (2) Coating the hydrophilic coating onto the inner area of ​​the pores of the pre-treated porous glass slide and drying it to form a hydrophilic layer, thereby obtaining a glass slide for preventing cross-infection.

A medical device includes a device body having an outer surface with visual indicia and a coating extending over at least part of the outer surface. The coating may include a hydrophilic material with a hydrochromic additive that appears opaque when dry and transparent when wet, allowing the visual indicia to be revealed only upon activation with moisture. The visual indicia may include colors or alphanumeric characters that become visible when the coating is wetted. This color-changing mechanism provides users with a clear visual indication of proper coating activation.

To provide a condensation-reactive microgel dispersion that, when used with a film-forming component, can form a film with excellent water resistance and hydrophilicity, and also exhibits excellent storage stability. [Solution] The microgel (G) comprises a core portion (C) containing a polymer of ethylenically unsaturated monomers and a hydrophilic shell portion (S), and a medium (M) comprising water and / or a hydroxyl group-containing organic solvent, wherein the hydrophilic shell portion (S) imparts dispersion stability to the core portion (C) in the medium (M), and the mass fractions of the core portion (C), hydrophilic shell portion (S), and medium (M) used in the formation of the microgel (G) satisfy 0.05 ≤ ((C) + (S)) / (M) ≤ 1, and the condensation-reactive microgel dispersion is [(NV 105℃ -NV 150℃ ) / NV 150℃ A condensation-reactive microgel dispersion in which ΔNV (%), expressed as ] × 100, is between 5% and 50%.

The application discloses a medical-grade thermoplastic polyurethane (TPU) elastomer containing a hydrophilic coating function and a preparation method and application thereof. The elastomer adopts a "bio-based PVP / medical TPU composite system", and through a three-layer structure design of "plasma pretreatment-dynamic crosslinking intermediate layer-smart response hydrophilic surface layer", the intermediate layer introduces a polydopamine (PDA) and a Schiff base dynamic crosslinking network, and the surface layer is modified by bio-based PVP and pH-responsive monomers, so that the synergistic performance of "super-hydrophilic, super-low friction, antibacterial rate greater than or equal to 99.5%, and anticoagulation index greater than or equal to 1.8" is realized, and the adhesion of the coating still reaches 0 level and the lubricity retention rate is greater than or equal to 90% after 500 cycles of friction. The preparation process is environmentally friendly and can be produced on a large scale, the product has biological compatibility in line with the standard, and has a wide clinical application prospect.

A microbubble sorting device (100, fig. 1) comprising: inlet (120, fig. 1) for receiving a solution containing a plurality of microbubbles 151, 152; and an array 140 of spaced obstacles 141 arranged to differentially direct the microbubbles according to their size. This direction of the microbubbles acts to separate them into a first flow and a second flow. The array may be a Non-equilibrium Inertial Separation Array, NISA, utilising inertial lift force to manipulate the microbubbles. The obstacles may be located in a channel which may comprise a hydrophilic surface. This hydrophilic surface may arise from a two-layer hydrophilic coating on the channel and array. A method of using such a device is also described. Figure 2

This invention discloses a foreign body removal device, belonging to the field of medical auxiliary device technology. The device includes a malleable support, a connecting rod, and a flexible wrapping band. One end of the connecting rod is connected to the malleable support, and the other end has a handle ring. The malleable support is made of medical-grade stainless steel or titanium alloy closed elastic metal ring, which can be bent and shaped while maintaining its form. Its surface is smooth and polished, the ends are rounded, and it is coated with a hydrophilic coating. The flexible wrapping band is made of medical-grade sterile degreased cotton cloth or non-woven fabric, fixed to the outer periphery of the support and featuring anti-slip texture. In use, the support adapts to the physiological curvature of the rectum to bypass the foreign body, guiding the flexible wrapping band to completely wrap the foreign body. It can then be safely expelled by pulling with the handle. This invention has advantages such as strong adaptability, stable clamping, minimal mucosal damage, and simple operation. It is suitable for minimally invasive removal of various rectal foreign bodies such as plastic, glass, silicone, and fruit pits, reducing surgical trauma and the risk of complications.

In one embodiment, the present invention provides a layered composition for use with a biosensor for in vivo monitoring of electrolytes. The layered composition comprises a hydrophilic coating layer and a hydrophobic ISM layer. In other embodiments, the present invention also provides a biosensor comprising such a layered composition, as well as a method for producing the layered composition and biosensor described herein.

The application discloses a lung nodule positioning and ablation integrated device and method, which comprises a positioning and ablation needle, the positioning and ablation needle comprises an outer needle tube one, which is hollow inside and coated with an insulating layer on the surface; a positioning member made of a material with electric conductivity is arranged inside the outer needle tube one and used for being stabbed into a lung nodule and simultaneously serving as a radio frequency ablation electrode; a positioning guide wire made of a material with electric conductivity is coated with an insulating layer on the surface, and a hydrophilic coating layer is coated on the insulating layer; one end of the positioning guide wire is connected with the positioning member, and the other end of the positioning guide wire is led out from the inside of the outer needle tube one and connected with a radio frequency ablation device; and a pushing mechanism is sleeved on the positioning guide wire and used for pushing the positioning guide wire and stabbing the positioning member into the lung nodule. The application can solve the problems that the existing lung nodule positioning and radio frequency ablation need to be carried out in steps, the positioning is inaccurate, the lung nodule is prone to displacement and bleeding in the multiple puncture processes.

This invention discloses a high-voltage electrostatic air purification device based on a dynamic gas-liquid interface, comprising a base and a shell, and further comprising a high-voltage electrostatic module, a filter module, a liquid-drawing device, and an adsorption unit. The shell is connected above the base, and the high-voltage electrostatic module is disposed inside the base. Multiple filter devices are arranged vertically inside the shell, and the filter devices are arranged along the length of the shell. The filter devices are connected to the liquid-drawing device. Each filter device contains two sets of adsorption units, which are parallel to each other. The adsorption unit includes a flexible substrate with a periodically arranged array of micropillars. The surface of the flexible substrate is coated with a hydrophilic coating for constructing a dynamic gas-liquid interface. The invention utilizes a high-voltage electrostatic field to polarize solid particles and gas molecules in the air, causing various components to carry charges and transfer to the gas-liquid interface under the action of the electric field, so that the gas-liquid interface can capture solid particles and gas molecules in the air.

Hydrophilic coatings including a polymer matrix having voids wherein microparticles having a lubricious liquid are located within the voids.

The application belongs to the technical field of super-hydrophilic coating, and particularly relates to a self-repairable super-hydrophilic coating, a preparation method and application thereof.The self-repairable super-hydrophilic coating comprises the following components in parts by weight: 10-20 parts of epoxy resin, 1-5 parts of curing agent, 10-150 parts of solvent, 0-7 parts of nano filler, 5-15 parts of modifier and a hydrophilic component dissolved in another solvent.The super-hydrophilic coating has excellent oil pollution prevention characteristics, and can have antibacterial, scale inhibition and drag reduction characteristics, and can be applied to the fields of oil adhesion prevention, microbial adhesion prevention, underwater drag reduction, oil-water separation and the like, can effectively resist conventional organic oil phase pollution, even high-viscosity crude oil pollution, and can be repaired in water, strong acid, strong base, high salt and artificial seawater, solving the problem that the existing super-hydrophilic coating cannot be repaired in an extreme underwater environment.

To provide an in-vivo implantable device that can suppress the unintended peripheral dispersal of blood clots. [Solution] An in-vivo implantation device 1 having a coil 10 and a hydrophilic coating layer 20 disposed on the outer peripheral surface 12 of the coil 10.

This invention provides a novel, elongated medical device with partially altered surface lubricity. [Solution] The elongated medical device 100 comprises an elongated main body portion 10 including a first portion 10A and a second portion 10B located closer to the proximal end than the first portion 10A, and a hydrophilic coating layer 6 located on the outside of the main body portion 10, wherein the surface shape of the hydrophilic coating layer 6 located on the outside of the first portion 10A is different from the surface shape of the hydrophilic coating layer 6 located on the outside of the second portion 10B. The elongated medical device 100 is manufactured by forming a hydrophilic coating layer 6 on the outside of the elongated main body portion 10, which includes a first portion 10A and a second portion 10B located closer to the proximal end than the first portion 10A, such that the surface shape of the portion located on the outside of the first portion 10A is different from the surface shape of the portion located on the outside of the second portion 10B.

The utility model provides an ultra-smooth nasal feeding tube with a hydrophilic coating, which belongs to the field of medical instruments and comprises a nasal feeding tube body, one end of the nasal feeding tube body is in a pointed cone shape, a hydrophilic component is arranged on one side of the nasal feeding tube body, and a fixing component is arranged outside the nasal feeding tube body. According to the hydrophilic nasal feeding tube, the hydrophilic assembly is arranged, so that the effect of supporting the nasal feeding tube body is achieved; before the nasal feeding tube is used, the nasal feeding tube body is placed in normal saline to be soaked for 30 seconds, the hydrophilic coating made of polyvinylpyrrolidone absorbs water and expands to form the hydrogel layer, when the nasal feeding tube is inserted into the nasal cavity and the throat of a patient, the formed hydrogel layer can greatly reduce the friction coefficient between the outer wall of the nasal feeding tube body and the nasal cavity and the throat of the patient, and discomfort of the patient is reduced; meanwhile, the supporting wire made of the nickel-titanium alloy can improve the stability of the nasal feeding tube body in the bending process, and the situation that the inner cavity of the nasal feeding tube body is completely closed when the patient moves is avoided.

This application relates to the field of polymer coating technology, and more particularly to a method for preparing a hydrophilic coating. The preparation method includes the following steps: providing solution A and solution B, where solution A comprises a water-soluble polymer and water, and solution B comprises silicone oil, a crosslinking agent, and water; the water-soluble polymer comprises at least one of polyvinyl alcohol and polyacrylamide, and the crosslinking agent comprises at least one of triethanolamine and carboxyethyl cellulose; mixing solution A and solution B with sodium hexametaphosphate to obtain a coating; subjecting a substrate to plasma treatment to obtain active centers; and covering the active centers with the coating to form the hydrophilic coating. The hydrophilic coating obtained in the embodiments of this application has a close contact with the substrate, good stability, and superior hydrophilic properties.

This invention discloses a laterally driven electrophoretic display device and electronic device. The electrophoretic display device includes: a transparent upper substrate and a transparent lower substrate disposed opposite to each other, transparent electrodes, a charged layer with a hysteresis electric field dipole effect, and an electronic ink containing component. The transparent electrodes include a transparent common electrode disposed on the entire lower surface of the transparent upper substrate and first and second pixel electrodes spaced apart on the upper surface of the transparent lower substrate. The charged layer is disposed on the upper surfaces of the first pixel electrode, the transparent lower substrate, and the second pixel electrode, and is made of a hydrophilic coating and a charged material with a hysteresis electric field dipole effect. The electronic ink containing component is disposed between the common electrode and the charged layer, and contains electronic ink composed of a non-polar electrophoretic medium, weakly polar electrophoretic particles, a charge control agent, and a thickener. This invention enables the electrophoretic display device to maintain display for a long time when power is off, improving its lateral bistable performance, drive response speed, and display refresh rate.

This application relates to a cable distribution box with a moisture-proof and heat-dissipating structure, belonging to the field of electrical equipment technology. It includes a condensate collection structure located inside the box, which guides and collects condensate generated within the box through a V-shaped groove, a top water guide groove, a vertical water guide groove, and an annular water collection groove, with each part's inner wall coated with a hydrophilic coating; a heat dissipation module located outside the box; and a flow guiding component for transporting condensate from the condensate collection structure to the heat dissipation module, the flow guiding component including a hollow flow guiding column, a filter ring, and an air bladder ring. The heat dissipation module transports the condensate to the evaporation tank of the heat dissipation fins through a capillary core, flexible rubber tube, etc., and discharges the condensate to the outside through evaporation. This application achieves effective guidance and collection of condensate within the cable distribution box, and discharges it through evaporation, thus achieving the technical effect of moisture-proof and heat dissipation.

This invention discloses an integral coating for the bottom surface of hydrophilic aluminum foil, its preparation method, and its application. The hydrophilic coating of this invention has significant advantages over existing similar products in terms of resistance to salt spray, methyl ethyl ketone (MEK) wiping, and alkali resistance. At the same time, it can achieve excellent long-lasting hydrophilicity and can be applied to low-energy air conditioners with high performance requirements.

A parallel flow (PF) heat exchanger, including a header, a refrigerant tube formed of aluminum, and a heat transfer fin formed of aluminum, includes a chemical conversion layer provided on a surface layer of the refrigerant tube or the heat transfer fin; a resin coating layer provided on a surface of the chemical conversion layer; and a hydrophilic coating layer provided on a surface of the resin coating layer. The resin coating layer is formed of an epoxy acrylate resin with waterproof properties.