38results about How to "Flexible performance adjustment" patented technology

The invention discloses a high-sensitivity capacitive flexible tactile sensor based on a three-dimensional porous microstructure composite dielectric layer and a manufacturing method thereof. The upper and lower surfaces of a three-dimensional porous microstructure composite dielectric layer are orderly provided with flexible isolation layers, flexible plates and flexible protection layers. According to the three-dimensional porous microstructure composite dielectric layer, a graphene/multi-wall carbon nanotube/silicone rubber conductive composite material is used as a force sensitive composite material, and dipping and coating the graphene/multi-wall carbon nanotube/silicone rubber conductive composite material at a polyurethane sponge three-dimensional framework surface layer, the three-dimensional porous microstructure composite dielectric layer is obtained through self-assembly. The capacitive flexible tactile sensor of the invention has good flexibility, detection sensitivity anddynamic response characteristics, and a design idea is provided for the design of the highly-sensitivity flexible tactile sensor for an electronic skin application of an intelligent robot.

The invention discloses an itaconic acid-based epoxy resin composition which comprises the components in parts by weight: 100 parts of itaconic acid-based epoxy resin, 5-150 parts of curing agent, 0-6 parts of curing accelerator, 0.1-10 parts of radical initiator and 0.1-100 parts of double-bond-containing component, wherein the double-bond-containing component is more flexible in performance adjustment; the itaconic acid-based epoxy resin not only has two epoxy groups so as to be cured under the action of the epoxy resin curing agent, but also has double bonds so as to be capable of carrying out free radical polymerization under the action of the radical initiator; and furthermore the double-bond-containing component is more flexible in performance adjustment. The invention also discloses a method for preparing an itaconic acid-based epoxy resin cured substance from the itaconic acid-based epoxy resin composition; and the curing method is simple, easy to implement, good in controllability and high in operability.

The invention discloses an organosilicone heat conduction insulating piece and a preparation method thereof. The organosilicone heat conduction insulating piece at least comprises a heat conduction insulating layer, wherein the heat conduction insulating layer is prepared from an organosilicone heat conduction insulating composition by using a sheet material forming process; the organosilicone heat conduction insulating piece comprises a substrate; the organosilicone heat conduction insulating composition is prepared from linear organopolysiloxane containing alkenyl, heat conduction packing, a cross-linking agent, a platinum catalyst, a vulcanizing agent and the like. The organosilicone heat conduction insulating piece disclosed by the invention is high in heat conductivity, good in insulating property, good in stabbing resistance and tearing resistance, flexible in adjusting product property, simple in preparation method and wide in adaptability.

The invention discloses biodegradable temperature response hydrogel and a preparation method thereof. The method comprises the following steps of: (1) reacting terminal hydroxyl group of polycaprolactone dihydric alcohol with crylic acid (or methacrylic acid) to prepare polycaprolactone macromolecule cross-linking agent; (2) reacting singe terminal hydroxyl group of polyethylene glycol monomethylether and acryloyl chloride (or methacryloylchloride) to prepare a polyethylene glycol monomethyl ether macromolecule monomer; and (3) copolymerizing the polycaprolactone macromolecule cross-linking agent, the polyethylene glycol monomethyl ether macromolecule monomer and N-isopropylamide according to a certain ratio to obtain the biodegradable temperature response hydrogel. Compared with the traditional hydrogel, the hydrogel disclosed by the invention has the advantages of being rapid in response speed, good in mechanical strength, biodegradable and good in biocompatibility; therefore, the hydrogel is hopeful to be applied in the drug slow release field.

The invention provides a controllable damping molecule spring vehicle suspension. The controllable damping molecule spring vehicle suspension comprises a compressible hydraulic cylinder, an incompressible auxiliary cylinder, a piston, molecular spring mixed mediums and a magnetorheological fluid; the compressible hydraulic cylinder comprises an end cap and a cylinder body which are mutually connected, a membrane sheet is arranged at the position between the end cap and the cylinder body, and a cavity formed between the membrane sheet and the cylinder body is fully filled with the molecular spring mixed mediums; the incompressible auxiliary cylinder comprises an auxiliary cylinder body, and the auxiliary cylinder body is arranged at the end, away from the cylinder body, of the end cap in asleeving mode; a first sealing ring is arranged between the inner wall of the auxiliary cylinder body and the outer wall of the end cap to form a sealed chamber, and the chamber is fully filled with the magnetorheological fluid; the piston comprises main pistons and an auxiliary piston, wherein the main pistons and the auxiliary piston are mutually connected, the main pistons are located in the end cap and the auxiliary cylinder body and sequentially penetrate through the end cap and the auxiliary cylinder body to extend to the exterior of the auxiliary cylinder body; and the auxiliary pistonis located in the cavity formed between the membrane sheet and the cylinder body. According to the controllable damping molecule spring vehicle suspension, the structure is simple, performance is superior, and ride comfort and the control ability of a vehicle can be effectively improved.

The invention discloses a composite method of a liquid crystal supermolecule material containing double photosensitive units, belonging to the technical field of photosensitive materials. Anion polyelectrolyte solution and azo-cinnamylic acid ion liquid crystal mixed liquor are mixed to react to obtain precipitate, and the liquid crystal supermolecule material is obtained after the precipitate is cleaned. The invention can change the phase behavior, the light orientation characteristic and the thermostability of the photosensitive supermolecule material by regulating the ratio of the two photosensitive units.

The invention provides a molecular spring vehicle suspension. The molecular spring vehicle suspension comprises a compressible hydraulic cylinder, pistons and molecular spring mixed media; the compressible hydraulic cylinder comprises an end cover and a cylinder body which are connected with each other, a diaphragm is arranged between the end cover and the cylinder body, and a cavity formed between the diaphragm and the cylinder body is filled with the molecular spring mixed media; the pistons comprise a guide piston and a damping piston which are connected with each other, one end of the guide piston is located in the end cover, and the other end of the guide piston extends out of the end cover; the damping piston is located in the cavity formed between the diaphragm and the cylinder body; the end, connected with the guide piston, of the damping piston is a stepped shaft with threads, the stepped shaft is used for fixing the damping piston, the guide piston and the diaphragm togetherthrough the threads, and sealing is formed; and the other end of the damping piston is a guide end, the outer edge of the guide end is in clearance cooperation with the inner wall of the cylinder body, and damping holes are formed in the guide end. The molecular spring vehicle suspension has high static and low dynamic stiffness characteristics, smoothness and maneuverability of running of a vehicle can be greatly improved, and meanwhile, installation space is saved.

The invention provides a preparation method of a defect-containing WO3 photoelectrode. A WO3 electrode grows on a conductive surface of conductive glass by adopting a water bath method, the WO3 electrode is connected with a metal foil by a wire, then the WO3 electrode and the metal foil are simultaneously immersed into an electrolyte solution with a certain concentration, the color of a WO3 film is gradually changed from yellow to blue, and meanwhile, defects are generated on the surface of the material. The light absorption characteristic and color change of the WO3 film can be controlled bycontrolling the reaction time, the reduction potential of the metal foil and the concentration of the solution. The preparation method is simple in process and beneficial to large-scale preparation and production. The material has a huge application prospect in the aspects of hydrogen production by photoelectrically decomposing water, chemochromism, solar cells and the like. The invention belongsto the technical field of photoelectrode improvement.

The invention discloses a modified polyimide-based wave-absorbing material for a microwave dark chamber, and the wave-absorbing material is composed of a polyimide foaming precursor composite wave-absorbing material and modified foamed aluminum; a wave-absorbing pyramid is made of the polyimide foaming precursor composite wave-absorbing material, the wave-absorbing pyramid is adhered to a modifiedfoamed aluminum plate through an adhesive, a foamed aluminum plate is fixed on the other surface of the modified foamed aluminum plate through long nails, a gap exists between the modified foamed aluminum plate and the foamed aluminum plate, and aerogel is filled in the gap. The wave-absorbing material has the beneficial effects that: various wave-absorbing medium materials are adopted to form the wave-absorbing pyramid together, so that the wave-absorbing performance of the composite material at each frequency is effectively improved; the foamed aluminum is modified by adopting the wave-absorbing medium, so that the wave-absorbing capacity is improved, and meanwhile, the foamed aluminum has excellent sound insulation performance; an interlayer between the modified foamed aluminum and common foamed aluminum is filled with aerogel, so that the heat insulation performance is improved.

The invention provides a preparation method of a wild antheraea pernyi silk fibroin composite maltodextrin active stent material. The composite stent material takes wild antheraea pernyi silk fibroin and maltodextrin as main raw materials; the wild antheraea pernyi silk fibroin can promote fiber cell adhesion; the maltodextrin has functions of material modifier, pore-foaming agents, cell nutrients and neutrophil chemotactic agents; pore size distribution and porosity of the material are adjusted by the aid of phase separation-ultrasonic leaching hole technology in the preparation process of the material, mechanical property and degradation property of the material are favorably and flexibly adjusted, and matching of stent degradation rate and cell growth rate is realized; the preparation method is simple in process, short in production circle, high in clinical application value and especially suitable for preparation of artificial skin.

The invention discloses a method for optimizing the performance of a vanadium oxide thin film through a low valent vanadium seed layer, and relates to the field of electronic materials. The method adopts a magnetron sputtering technology, vanadium metal is used as a target, Al2O3 is used as a substrate, sputtering is conducted in the aerobic environment in twice, the oxygen concentration of the first time of sputtering is lower than that of the second time of sputtering, the low valent vanadium seed layer and the vanadium oxide thin film are sequentially obtained through the two times of sputtering correspondingly, and finally the vanadium oxide thin film optimized with the low valent vanadium seed layer is obtained through annealing. The prepared vanadium oxide thin film with the low valent vanadium seed layer has high phase change amplitude and small return wire width and is closer to the room temperature phase change temperature, and thus the sensitivity, stability, reliability andapplication prospects of thermotropic switch modulation devices are improved; and in addition, the annealing temperature required by preparation of the phase change vanadium oxide thin film through the method can be remarkably lowered, the process compatibility with an MEMS is better, and the method is suitable for batch production.

The invention relates to the technical field of plasmas, and discloses an electrode slice, an electrode plate, an electrode block and a plasma generator. The electrode plate (115) comprises a blockingdielectric plate (1151), an insulating seat (1154) with a mounting groove, a conductive connecting piece (1153) and a conducting strip (1156) arranged between the blocking dielectric plate and the insulating seat. The conducting strip and the insulating seat are positioned in the mounting groove, one end of the conductive connecting piece is connected to the conducting strip, and the other end ofthe conductive connecting piece extends to the outside of the insulating seat to form an electric connecting terminal (1155), wherein an insulating glue (1152) is filled in the gaps between the blocking dielectric plate and the mounting groove and between the conductive sheet and the mounting groove. The electrode slice is simple in structure, can effectively and stably seal and insulate the conducting strip for a long time, and is convenient for the simple installation and rapid disassembly of the plate-type electrode.

The invention belongs to the technical field of machinery equipment, and particularly provides an automatic clothing cutting bed. The cutting bed comprises an underframe, a top frame, a bottom plate,a main frame and a secondary frame; underframe columns are welded at the top of the underframe; the top frame is connected with the tops of the underframe columns; the bottom plate is connected with the inner sides of the underframe; the main frame and the secondary frame are connected with the left and right side walls of the underframe and the top frame; and a main slide rail and a secondary slide rail connects the main frame and the secondary frame. According to the automatic clothing cutting bed, X-direction motors in series connection can be arranged on the side surface of the top frame to be matched with synchronous conveyor belts in use; at the same time, the main frame and the secondary frame which contain the main slide rail and the secondary slide rail respectively are arranged on two sides of the top frame, a third cutting ring driven wheel is driven by a cutting ring driving wheel, and six-wheel synchronous motion is realized driven by the conveyor belts; and an upper rotating motor and a lower rotating motor are used to drive, so a movable frame and the third cutting ring driven wheel are matched with the main slide rail and the secondary slide rail to make synchronousmovements, and the operation space in the cutting process is improved so the purpose of flexible adjustments is achieved.