228results about How to "Flexible with" patented technology

The invention discloses a resistance-changing capacitance-changing composite two-dimensional strain sensor and a preparation method thereof. The resistance-changing capacitance-changing composite two-dimensional strain sensor proposed by the invention is of a three-layer structure including an upper plate, an insulating dielectric layer and a lower plate of of a parallel plate capacitor in design.The conductive materials for the upper plate and the lower plate are selected from metals having a micro/nano structure, a carbon conductive materials or metal-carbon mixed conductive materials, thebipolar plate patterns are designed in a serpentine shape, and the upper plate and the lower plate of the capacitor are simultaneously used as a resistance-changing tensile strain sensor. The resistance-changing capacitance-changing composite two-dimensional strain sensor of the invention detects a tensile strain in a horizontal direction through a capacitance-changing phenomenon, detects a tensile strain in ae vertical direction through a resistance-changing phenomenon, and detects a tensile strain in a two-dimensional orthogonal direction by using the resistance-changing capacitance-changingcomposite form, so as to have flexible and tensile characteristics; and the resistance-changing tensile sensor adopts a permeable conductive network structure and has good sensitivity.

The invention relates to the sensor technology field and especially relates to a flexible self-energy-supply pressure sensor. The sensor comprises a dielectric frictional layer and a hydrogel dielectric layer which are attached with each other. Outer sides of the dielectric frictional layer and the hydrogel dielectric layer are successively provided with an electrode layer and a protection layer.The hydrogel dielectric layer is a mixture of a high-molecular polymer and a conductive liquid. The dielectric frictional layer is made of a friction dielectric polymer material. A convex microstructure is arranged on a contact surface of the dielectric frictional layer and the hydrogel dielectric layer. The flexible pressure sensor can be used to measure pressure on the structure. Compared with atraditional piezoresistive sensor, a piezoelectric sensor and a capacitive sensor, by using the pressure sensor of the invention, an idea of providing power by external pressure on the sensor itselfmakes the obtained sensor have advantages of flexibility, low power consumption, and high sensitivity and the advantage that there is no need to add power during measuring. Flexible pressure providedin the invention has a great potential application value on aspects of a wearable sensor and structural surface pressure measurement.

The invention relates to a flexible tile adhesive which comprises a component A and a component B. Mass ratio of the component A to the component B is 3:1. The component A is prepared from the following raw materials (by weight): 30-46% of Portland cement, 40-56% of washed-out baked sand, 5-8% of quartz powder, 0.1-0.4% of an antifoaming agent, 1.5-2.2% of cellulose ether, 0.2-0.3% of starch ether, 1.5-3% of redispersible latex powder, 0.4-0.65% of a water reducer and 0.1-0.2% of polypropylene fiber. The component B is prepared from the following raw materials (by weight): 50-75% of an elastic polymer emulsion, 20-45% of water, 0.2-0.5% of a surfactant, 0.3-0.5% of a preservative, 1-3% of 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate and 0.5-1% of an ethylene glycol antifreezing agent. The flexible tile adhesive has certain flexibility, is not easy to crack, hollow or fall, has good bleeding resistance, strong scratch resistance and shock resistance, and is easy to operate.

The invention relates to a water surface floating platform and belongs to the field of floating devices. The water surface floating platform comprises a rigid supporting part and a flexible connecting part. The rigid supporting part comprises at least one layer of peripheral floating table, a center floating table arranged in the center of the rigid supporting part and connecting floating tables symmetrically arranged with the center floating table as the center. The peripheral floating table and the center floating table are connected through the connecting floating tables. The flexible connecting part is arranged in the space defined by the rigid supporting part and comprises a floating block set and a pull rope net which are parallel to each other. The pull rope net comprises pull ropes connected between the peripheral floating table, the center floating table and the connecting floating tables in a criss-cross manner. The pull ropes are provided with tension adjusting devices. By the adoption of the water surface floating platform, rigidity and flexibility are combined, and the structural stability and the environment adaptability of the water surface floating platform are effectively considered; and the modularization detachable design is adopted, the limits in the aspects of production, transport, assembly and the like are broken, and the platform can be conveniently enlarged and transferred.

The invention discloses a flexible wearable electrode and a preparation method therefor. The preparation method comprises the steps of taking carbon cloth, or oxidized carbon cloth processed by a chemical method, or carbon cloth loaded with metal oxide as a current collector; and filling the gap of the current collector with graphene, or graphene oxide or graphene loaded with the metal oxide through a binder so as to improve the energy density of the flexible wearable electrode. The carbon cloth and graphene both have high flexibility and can be used as the material of a flexible wearable energy storage apparatus; however, the specific surface area of the carbon cloth is relatively small; the resistance of the laminated layers of the laminated graphene is relatively high; when the carbon cloth and graphene are combined together, relatively high energy density can be obtained; and meanwhile, the prepared electrode can obtain relatively low internal resistance, and a thermal effect in a rapid charging-discharging process can be reduced as well.

The invention provides a cellulose-based flexible heat storage composite material and a preparation method thereof, and the preparation method comprises the following steps: uniformly mixing an oil phase and a water phase to obtain an oil-in-water type high internal phase emulsion, wherein the oil phase is an organic phase change material, the water phase comprises a water-soluble emulsifier, a cellulose suspension and water; adding a cross-linking agent and a catalyst into the oil-in-water type high internal phase emulsion, realizing interfacial polymerization of the cellulose emulsion through heating, forming a cross-linked polymer at an interface, and obtaining the heat storage composite material through heating drying and freeze drying. The appearance of the heat storage composite material can be controlled through a mold for containing the high internal phase emulsion during polymerization, a nanofiber structure is arranged in the heat storage composite material, the heat storage density of the material after heating and drying can reach 200 J/g, the heat storage density of the material after freeze drying can reach 250 J/g, and the heat storage composite material has flexibility, can be curled and folded at the room temperature and the temperature of 40 DEG C or above and is good in heat conduction performance.

The invention provides a flexible film solar cell packaging method and a solar cell. The solar cell comprises a backboard (5), a solar cell sheet (3) and a transparent water-vapor-resistant high-molecular film (1). One side of the solar cell sheet (3) is laminated on the backboard (5) through a first hot melt adhesive (4), and the other side of the solar cell sheet (3) is laminated on the transparent water-vapor-resistant high-molecular film (1) through a second hot melt adhesive (2). Plastic hot melt adhesives package the solar cell therein and form a complex under a certain temperature and pressure so as to protect the solar cell; a packaged solar cell is flexible, and is not easy to break and damage in installation and use processes, thereby widening the application field of a film solar module.

The invention discloses a flexible bionic tactile sensor based on a microstructure. The flexible bionic tactile sensor comprises a fingerprint imitation layer and two oppositely-arranged conductive structures; each conductive structure comprises a supporting layer, a flexible layer arranged on the supporting layer and a conductive sensitive layer arranged on the flexible layer; and the conductivesensitive layers of the two conductive structures abut against each other, and the fingerprint imitation layer is arranged on the surface, back on to the corresponding flexible layer, of the supporting layer of one of the conductive structures. The invention further discloses a preparation method of the flexible bionic tactile sensor based on the microstructure. The flexible bionic tactile sensorhas the advantages of being cheap in raw material, simple in process, convenient to operate and suitable for large-scale industrial production, especially the sensitivity of the sensor can be adjustedand controlled by adjusting the size and thickness of conductive protrusions in the conductive sensitive layers, and the high-precision, high-stability and high-sensitivity flexible bionic tactile sensor is obtained.

The invention discloses a preparation method of a pressure sensor based on collagen film. The method comprises the following steps that hide powder is dissolved in an ionic liquid for the formation of a homogeneous and transparent collagen solution, a substrate is spin-coated with the collagen solution for the formation of a uniform film, then the substrate is soaked in deionized water and washed, the film is taken out for drying till a constant weight is reached, and a regenerated collagen film is obtained; a layer of electrode is smeared on a collagen film with the method of template, while a layer of conductive material is smeared on the other collagen film with the method of spin-coating, and the two layers are made in contact and compressed, so that the preparation of the flexible pressure sensor is completed. The preparation method has the advantages of simple preparation method, convenient material selection, low cost, high sensitivity and biodegradability of the prepared flexible pressure sensor, and can be applied to the detection of human's limb activities and voice recognition, thereby having a far-reaching effect on the development of portable flexible devices.

Disclosed are a flexible liquid crystal thin film material having the transmittance varying with the temperature and a film preparation method. Nematic liquid crystal, a chiral compound, biphenyl cyanogen liquid crystal, a liquid crystal polymerizable monomer, an acrylate monomer, glass beads, and an initiator are mixed according to a certain ratio and are uniformly stirred at 20-50 DEG C, the obtained mixture is poured into the middle part between two layers of polyester films coated with ITO conducting layers, the obtained film is subjected to rubber roll extrusion, and the obtained liquid crystal film is subjected to ultraviolet light polymerization in a power-on state so as to obtain a flexible liquid crystal thin film having the transmittance varying with the temperature. The prepared flexible liquid crystal thin film is transparent at a low temperature, the transmittance of the film increases as the temperature rises, and when the temperature reaches a certain value, the thin films converts to a transmittance state from the transparent state. The thin film has the characteristics of high response speed, high contrast and high infrared light and ultraviolet light resisting rate, can be applied to the fields of buildings and automobiles, and is an excellent energy-saving material. The film preparation method plays a significant part in promotion of development process of a thin-film material.

The invention provides a pressure sensor and a preparation method and use thereof. The pressure sensor comprises a dielectric layer, a first electrode layer and a second electrode layer; the first electrode layer and the second electrode layer are located at both sides of the dielectric layer respectively, and the dielectric layer comprises an ionic active material. The preparation method comprises the steps of 1) preparing the dielectric layer, wherein the dielectric layer comprises the ionic active material; 2) preparing the first electrode layer and the second electrode layer; 3) fixing thefirst electrode layer and the second electrode layer to both sides of the dielectric layer respectively to obtain the pressure sensor. The sensor has the advantages of flexibility, high transparencyand high sensitivity, and can be applied to manufacturing flexible touch sensors or human-computer interaction interfaces or the like.

The invention discloses a manufacturing method for an ultrathin flexible stone composite board. The manufacturing method comprises the following steps: raw material pre-processing, gluing processing,curing processing, sizing processing, polishing processing, bend-forming processing, and surface coating processing. The invention further discloses the ultrathin flexible stone composite board manufactured by the before-mentioned manufacturing method. The stone composite board is formed by a flexible base layer formed by a flexible base plate, a bonding layer formed by an adhesive, a natural stone layer formed by a natural stone, and a plain protective coating layer formed by a plain coating from inside to outside. The ultrathin flexible stone composite board is capable of bonding the ultrathin natural stone and the flexible base plate, so the whole stone composite board is small in thickness and has the flexibility, is not easy to rupture, can be bended and deformed within a certain bending radius and cannot be broken. The stone composite board can be made as various bending shapes according to the requirements, the stone is greatly saved, and the stone waste is reduced.

An embodiment of the invention discloses a pulse detection device and a manufacturing method thereof. The pulse detection device comprises: a piezoelectric sensing layer including a flexible piezoelectric electret film and two metal electrodes arranged on the upper and lower surfaces of the flexible piezoelectric electret film respectively, wherein the two metal electrodes are used for outputtingcharge quantity changes when the flexible piezoelectric electret film deforms; a data processing mechanism used for connecting the two metal electrodes to receive charge quantity changes output by thetwo metal electrodes, for determining a potential change according to the charge quantity changes, and for transmitting the potential change to a data receiving terminal. The technical problem that apulse detection device of the prior art has complex structure is solved; structural complexity of the pulse detection device is decreased.

The invention relates to the technical field of preparation of composite new materials and in particular to an activated carbon/carbon nanotube/graphene composite material and a preparation method and application thereof. A three-dimensional composite material is prepared from activated carbon, carbon nanotube and graphene. The large specific surface area and the high conductivity of the grapheme and the carbon nanotube are fully utilized. Further, activated carbon barrier carbon nanotube and graphene reunion and stacking are introduced. Thus, the zero-dimensional granular activated carbon, the one-dimensional carbon nanotube and the two-dimensional graphene are uniformly combined through vacuum filtration so as to form a flexible, self-supporting, and three-dimensional porous composite material. When used as a material of a lithium ion capacitor electrode, the composite material is not required to be filled with a conductive agent or a binder, and has the characteristics of self-supporting and flexibility without need for a current collector. The composite material helps to improve the energy density of lithium-ion capacitors and broadens the application field thereof.

The invention belongs to the field of pressure sensor design and manufacturing, and specifically discloses a flexible multi-range capacitive-type pressure sensor and a preparation method and an application thereof. The sensor comprises a flexible substrate, a multi-stage support island and a pressure sensitive film, which are sequentially arranged from bottom to top. The multi-stage support islandis composed of a central circular boss located at the middle of the pressure sensitive film, and n-stage annular bosses which are disposed on the pressure sensitive film and are concentrically arranged with the central circular boss. A top electrode is disposed between the central circular boss and the pressure sensitive film, and the heights of the n-stage annular bosses sequentially increase from the inside to the outside, wherein the outermost annular boss is attached to the flexible substrate. The bottom portion of the flexible substrate is provided with a bottom electrode directly belowthe central circular boss. The sensor provided by the invention has a wide range of pressure measurement while maintaining high sensitivity, and solves the contradiction between the range and sensitivity of the pressure sensor, and can meet the requirements of the pressure range and sensitivity of different wind tunnel tests.

The invention relates to a positive electrode material for a flexible lithium-sulfur battery and belongs to the technical field of electrochemistry application. The positive electrode material is obtained through a method comprising the following steps: adding a carbon material to a dispersion liquid into which a polymer monomer is dissolved; adding an oxidant according to the condition, stirring and mixing evenly, and filtering to obtain powder; mixing the powder, a binder and a film-forming agent evenly, coating a substrate with the mixture, drying, washing off impurities by using a solvent 1, and stripping the mixture from the substrate to obtain a film; and dissolving elemental sulfur into a solvent 2 in an inert atmosphere, dropwise adding the solvent 2 to the film, and evaporating the solvent to obtain the positive electrode material. The positive electrode material can be self-supported, has flexibility and does not have a current collector; the positive electrode material can be used as a positive electrode of the lithium-sulfur battery in a monolithic or multi-layer stacking manner; the positive electrode material is capable of improving the utilization rate of active substance sulfur, effectively inhibiting dissolution of polysulfide, prolonging the cycle life of the lithium-sulfur battery and reducing the impedance of the lithium-sulfur battery; and the positive electrode material is simple in preparation method, low in cost, green and environment-friendly, and massive production is easy to achieve.

The invention discloses calcium copper titanate/polydimethylsiloxane (PDMS) composite flexible foam as well as a preparation method and application thereof. The composite flexible foam contains the following components in parts by weight: 10-12 parts of a PDMS precursor, 1-2 parts of dimethicone, 0.3-4 parts of CCTO powder, 0.03-0.2 part of a silane coupling agent, 1-1.2 parts of a curing agent, 13-18 parts of a pore forming substance and 5-15 parts of ethanol. The preparation method comprises the following steps: (1) mixing the CCTO powder, the PDMS precursor, the dimethicone, ethanol and the silane coupling agent according to a formula, and performing ball milling; (2) adding the pore forming substance and the curing agent, and continuing to grind; (3) performing mold pressing and maintaining the temperature; and (4) drying, thereby obtaining the CCTO/PDMS composite flexible foam. The method disclosed by the invention is simple in process and low in cost, the prepared CCTO/PDMS composite flexible foam has excellent elasticity and flexibility, and the prepared pressure sensor is high in sensitivity and wide in range.

The invention discloses an inorganic high-strength filler for a coating. The inorganic high-strength filler is prepared by fully mixing 220 to 300 weight parts of white portland cement used as a gelled material, 350 to 550 weight parts of white quartz sand and 150 to 250 weight parts of quartz powder which are used as aggregate, 50 to 100 weight parts of wollastonite powder, and 0.3 to 1.5 weightparts of polypropylene fiber anti-cracking material, and a dry powder material which is prepared by mixing 2 to 8 weight parts of cellulose ether and 10 to 30 weight parts of gelatine powder uniformly by a stirring machine, and packaging. The inorganic high-strength filler can be conveniently coated on a dry wall, is easy and convenient to construct, and is easy to level and polish; and when the inorganic high-strength filler is used as a penetration base layer of an inorganic penetration coating, first coat can be saved during coating construction of an inorganic coating, and the coating system can save materials and labor, is economic and reliable and save energy and is environment-friendly.

The invention provides a lithium battery current collector with a temperature sensing function and a preparation method thereof, and belongs to the technical field of lithium batteries. According to the lithium battery current collector disclosed by the invention, the temperature sensing unit is directly integrated on the surface of the current collector on the basis of the metal foil of the current collector, so that strong adhesive force of an interface between the temperature sensing unit and the metal foil can be ensured; the temperature sensing unit has the characteristics of small size and thin thickness, so that the influence on the battery performance can be reduced to the greatest extent; and besides, the preparation material of the temperature sensing unit has flexibility, so that the sensor is not damaged in the technological processes of coating, winding and the like in the battery preparation process, and the temperature change in the battery under different working conditions can be monitored in real time.

The invention discloses a minitype resistance humidity sensor and its preparation method. The sensor comprises a composite fiber beam and conductive circuits fixedly connected to both ends of the fiber beam, wherein the composite fiber beam consists of a PA66 nanofiber beam, a carbon nanotube and polyving akohol; the composite fiber beam is 30-120 mu m in diameter and 0.3-3 cm in length. The PA66 nano fiber beam is prepared by an electrostatic spinning technique, and then performed with ultrasound treatment in dispersing fluid of the carbon nanotube to prepare PA66/CNTs composite fiber beam; finally, both ends of the composite fiber beam are connected with the conductive circuits and immersed in the water solution of polyving akohol; after immersion, the composite fiber beam is frozen and unfrozen or heated and dried, thus the minitype resistance humidity sensor is obtained. The sensor overcomes problems generally existed in the existing humidity sensor, and has advantages of low cost, low power consumption, fast response speed and others; the sensor applies a flexible base and its structure is miniaturized; the minitype resistance humidity sensor can be widely applied to every domain.

The invention relates to a preparation method of a flexible CuInS2 solar battery based on a thin copper substrate. The preparation method comprises the steps of weighing copper salt and trihydric indium salt, dissolving the copper salt and trihydric indium salt into ethylene glycol for preparing the ethylene glycol solution of the copper indium salt; adding thioacetamide solid into ethylene glycol for ultrasonic dissolving, then adding the ethylene glycol solution of the copper indium salt to obtain mixed solution, and then transferring the mixed solution to a hydro-thermal reaction kettle and adding a copper sheet, after reaction, taking a copper sheet with herringbone CuInS2 out for being washed by distilled water and alcohol sequentially to obtain a flexible CuInS2 sheet, and then conducting centrifugal separation; and preparing a cadmium sulfide buffer layer on the flexible CuInS2 sheet in the chemical bath deposition method, and then conducting magnetron sputtering on zinc oxide and indium tin oxide, thus obtaining the flexible CuInS2 solar battery. The preparation method is simple in process and lower in equipment requirement; the solar battery is based on the flexible ultrathin substrate and has a certain flexibility and wide application prospect.

The invention discloses a flexible joint analog device with adjustable gaps of a space manipulator and relates to a flexible joint analog device. The flexible joint analog device with adjustable gaps of the space manipulator solves the problems that an existing space manipulator flexible joint analog device is difficult in achieving an analog test with large flexible loads and adjustable joint gaps, and a test verification period is long and cost is huge. One end of a driving connection rod is connected with a plate-shaped extending shaft in a rotating mode, and the other end of the driving connection rod is fixedly connected with one end of a flexible shrapnel. The other end of the flexible shrapnel is fixedly connected with the side wall of a load fixed frame, and heavy articles are arranged in the load fixed frame which is fixed on the upper end face of an air floating foot. Two screw fixed seats are symmetrically arranged on the upper end face of a gap adjusting plate with the driving connection rod as a symmetry axis, and each screw fixed seat is provided with a gap adjusting inner hexagon screw. Two force sensors are symmetrically arranged on two side walls of the driving connection rod, and the two force sensors are coaxially arranged with the two gap adjusting inner hexagon screws. The flexible joint analog device with adjustable thee gaps of the space manipulator is used for verifying mechanical properties of the flexible joint analog device.

The invention discloses a flexible electronic pressure sensor and a preparation method thereof. The flexible electronic pressure sensor comprises multiple pressure sensing units; each pressure sensingunit is composed of two substrates, two electrodes oppositely arranged between the two substrates and a compound pressure sensing membrane arranged between the two electrodes; the surface of each substrate is provided with a lotus-shaped micro pattern subjected to micro pattern treatment, and the substrates have flexible and retractable characteristics; the compound pressure sensing membrane is composed of multiple polyaniline hollow nanometer balls and multi-wall carbon nanometer pipes used for connecting adjacent polyaniline hollow nanometer balls; each pressure sensing unit utilizes a plasma treatment machine and adopts an electrode pixel treatment mode to form sensor arrays with set areas; the compound pressure sensing membrane has excellent elasticity capability and the ultra-low elasticity modulus, can achieve effective amplification and conversion of various kinds of exterior stimulation and is great in pressure sensing performance and high in temperature resolution; additionally, each pressure sensing unit can easily integrate the sensor arrays.