33results about How to "Have memory effect" patented technology

The invention relates to a polyvinyl carbazole/graphene composite material and a synthetic method and an application thereof. The synthetic method comprises the following steps: firstly oxidizing natural graphite to obtain graphite oxide; grafting an initiative and reversible addition-fragmentation chain transferred and polymeric group on the surface of the graphite oxide; and finally initiating a polymerization reaction of the N-vinyl carbazole on the surface of the graphite oxide by virtue of an initiating group to obtain the polyvinyl carbazole/graphene composite material via different reducing agents. The invention has remarkable characteristics as follows: the condition for initiating reversible addition-fragmentation chain transfer and polymerization on the surface is simple, the operation is easy, the polyvinyl carbazole can be firmly combined on the surface of the graphene by a covalent bond, controllable synthesis of macromolecular weight and molecular weight distribution can be achieved, the compatibility of the two materials can be effectively improved to a certain degree, and the current carrier transmission performance of the composite material is improved, thus having better application prospect and better economic benefits in the photoelectric information material field.

The invention discloses a method for preparation of triazole molecularly imprinted electrochemical sensor based on an electropolymerized OPD/OAP composite membrane. The method includes glassy carbon electrode pretreatment, electropolymerization of OPD/OAP composite membrane, template molecule elution and other steps in order. According to the invention, a triazole substance is taken as the template molecule, OPD and OAP are adopted as the mixed functional monomer, the use of the composite functional monomer improves the selection performance of the binding site in a polymer film, and is conducive to forming a stable host-guest compound from a template molecule and a functional monomer, so that the template molecule can maintain a good rigid structure in a polymer network structure and form a cavity with memory effect. The preparation method is simple and easy to control, and the sensor has the advantages of strong selectivity, good stability, high sensitivity, low cost, and fast response. The invention also provides application of the sensor in adsorption of triazole substances. The sensor prepared by the method provided by the invention is suitable for analysis and detection of residual triazole pesticide in vegetables, fruits and other agricultural products.

The invention relates to a preparation method for liquid crystal material of electronic paper material, belonging to the functional polymer liquid crystal display field. The manufacturing process is that a series of choiesl-like compounds are mixed, so that the indoor temperature is in the liquid crystal state; nematic liquid crystal and hydrogenbond-like chirality compounds are fed in the mixture; when the temperature is raised to a certain degree, the hydrogenbond-like chirality compounds are decomposed, and the liquid-system thread pitch is changed, so that the reflecting color is changed;after the temperature is reduced to the room temperature, the changed color can keep a period of time, namely, the changed color has memory; then, along with the completion of the self-assembling of chirality compounds in the system, the reflecting color is recovered to the initial state; polymerizable monomer and light photoinitiator are added in the system, and a polymer wall is formed by ultraviolet polymerization under a photomask, thereby obtaining a reflecting colorful display electronic paper driven by a thermal field. The preparation method has the advantages that the background colorof the liquid crystal material can be regulated as required, the color is brilliant without the background source, the energy is saved, and the method can be applied in a display device, a thermal sensitivity temperature sensor and the like.

The invention relates to a household virtual reality glasses, and the glasses comprises display equipment, optical imaging equipment, imaging processor, an eyeball diopter tester, a memory storage unit and a touch screen, wherein the display equipment, the optical imaging equipment, the imaging processor, the eyeball diopter tester, the memory storage unit and the touch screen are disposed in a hosing. The display equipment consists of a drive circuit and a display screen connected with the drive circuit. The eyeball diopter tester is used for detecting the eyeball diopter of a user. The imaging processor is connected with the optical imaging equipment and the eyeball diopter tester, and is used for adjusting the optical lens group according to the change of the eyeball diopter. The memory storage unit is used for storing an eyeball diopter electric signal outputted by the eyeball diopter tester and/or a mechanical signal outputted by the imaging processor. The touch screen sets function instruction data through a program editing window of an input/output interface and a key control function conversion module, and transmits the data to the memory storage unit for storage. The glasses is suitable for families, is convenient and quick, and is high in market value.

The invention discloses preparation and application of a nitrate treatment agent. The preparation method includes: taking cotton as the template, using coprecipitation process to synthesize biomorphiczinc titanium iron ternary hydrotalcite, and conducting roasting in a muffle furnace so as to obtain the nitrate treatment agent. The invention also provides application of the nitrate treatment agent prepared by the method in treatment of nitrate wastewater. The nitrate treatment agent prepared by the method has good adsorption effect on nitrate and is easy to separate, and has simple and feasible regeneration method, thus having broad application prospects in the field of nitrate wastewater treatment.

The invention discloses a method used for deep desilication of a sodium aluminate solution containing silicon. According to the invention, brine containing magnesium chloride is used as a raw material to prepare magnalium hydrotalcite (Mg6Al2 (OH) 16CO3.4H2O), and the magnalium hydrotalcite is used as a desilication agent to carry out deep desilication on the sodium aluminate solution containing the silicon; and at least 80% of silicon dioxide can be removed from the sodium aluminate solution containing the silicon; rich seawater or salt lake brine calcium chloride resources are used to prepare the magnalium hydrotalcite; the magnalium hydrotalcite is used to carry out deep desilication on the sodium aluminate solution containing the silicon in the alumina industry; waste resources are recycled; the environment pollution is reduced; the alumina production cost is reduced; and the economic efficiency of an enterprise is improved.

The invention provides chemical-erosion-resisting, high-strength and high-toughness concrete and a preparation method thereof. The concrete includes cement, river sand or artificial sand, water reducer, water and a composite functional material; the composite functional material includes roasted products, namely carbon nanotubes, of organic matter and a roasted product of layered double-metal hydroxide; the composite functional material is prepared in the step that divalent and tervalent metal salt used for preparing layered double-metal hydroxide, organic matter and metal salt catalysts used for preparing the carbon nanotubes, and alkali metal hydroxides are mixed evenly, then crystallized at 70-150 DEG C and finally calcined at 500-1000 DEG C in an inert atmosphere. According to the concrete and the preparation method thereof, the dispersion problem of the carbon nanotubes in cement materials is solved, and the problems that the compatibility of the carbon nanotubes with the cement materials is poor and the bonding strength of the carbon nanotubes is low. The concrete obtained by the preparation method can cure harmful gas or anions invading from the outside, the toughness and strength of the concrete can be increased, and the durability of the concrete is improved.

The invention provides an electrochromic device and a preparation method and an electronic product thereof. The electrochromic device comprises a transparent base material I, a transparent conductivelayer I, an electrochromic system, a transparent conductive layer II and a transparent base material II which are sequentially arranged in a stacked way. The electrochromic device adopts a specific combined structure, can achieve change of a color effect when exerting different voltages, does not need continuous power supply after color change, has a memory effect and thus has the advantages of saving energy and being attractive.

The invention relates to a mixed spinning method for three-dimensional crimp acrylic fiber. The mixed spinning method comprises the steps that (1) maintenance treatment is carried out on the three-dimensional crimp acrylic fiber, and then blowing and cotton carding are carried out to form slivers; (2) the three-dimensional crimp acrylic fiber is mixed with other textile fiber, lastly, roving, spinning and spooling are carried out, and the three-dimensional crimp acrylic fiber is obtained. The mixed spinning method for the three-dimensional crimp acrylic fiber has the advantages that own crimpcharacter of the fiber is utilized, the fiber is not influenced easily in subsequent processing and use process and loses the three-dimensional crimp feature, fabric has a memory effect through mixedspinning, and the crimp form is durable; the fluffiness and the heat retention are stronger, the hand feeling is more comfortable, the cohesive force of the fiber during processing and the size stability of the fabric are improved, and the application prospect is good.

The invention discloses an intelligent teaching method based on the Internet, and belongs to the technical field of intelligent teaching. During use, after a user accidentally touches an integrated learning terminal, the integrated learning terminal shakes, a large amount of carbon dioxide is promoted to overflow to an elastic air bag, and the elastic air bag expands to extrude an inclined plate and a fixed block to move downwards to be in contact with a fixed bottom frame, so the contact force between a deformation memory board and a table top is increased, and the deformation memory board is not prone to toppling due to instability caused by shaking; and air in the extrusion air bag is pressed to be blown into an elastic magnetic insulation bag body in the downward movement process, the elastic magnetic insulation bag body is expanded to drive a pressing block to press a contact type control switch, a light-emitting body is driven to emit light, the deformation memory board is expanded outwards due to light, meanwhile the magnetic insulation powder is diffused, the magnetic shielding of a magnet block is cancelled, a movable block is attracted to drive the deformation memory plate and a fixed suction cup to move downwards to make contact with the table top under the assistance of the magnetic layer, the movable block is tightly attracted to the table top, the supporting effect is achieved, the integrated learning terminal is not prone to toppling, and the protection effect is enhanced.

The invention provides a hydropower station hydrogen energy uninterrupted alternating current power supply system, which comprises a hydropower station hydrogen production system, a hydropower stationhydrogen storage system, a hydrogen conveying pipeline, a hydrogen fuel cell stack, a UPS main cabinet, a UPS power distribution cabinet and a power station service alternating current, wherein the output end of the power station service alternating current is electrically connected with the input end of a rectification module and the input end of the UPS main cabinet; the output end of the rectification module is electrically connected with the input end of the hydropower station hydrogen production system; the output end of the hydropower station hydrogen production system is communicated with the input end of the hydropower station hydrogen storage system through the hydrogen conveying pipeline; the output end of the hydropower station hydrogen storage system is communicated with the input end of the hydrogen fuel cell stack through the hydrogen conveying pipeline; the output end of the hydrogen fuel cell stack is electrically connected with the input end of the UPS main cabinet; the output end of the UPS main cabinet is electrically connected with the input end of the UPS power distribution cabinet; the output end of the UPS power distribution cabinet is electrically connectedwith the input end of the rectification module. According to the invention, the requirements of zero emission and zero pollution can be realized in the long-term operation and maintenance process.

The invention belongs to the technical field of animation production and discloses clay powder for puppet animation. The clay powder for the puppet animation consists of the following raw materials in parts by weight: 50 to 60 parts of attapulgite, 12 to 16 parts of hydrotalcite, 2 to 3 parts of lauryl sodium sulfate, 3 to 5 parts of tourmaline micropowder, 10 to 15 parts of polyethylene, 1 to 3 parts of polyacrylic acid, 1 to 2 parts of organic pigment, 4 to 6 parts of polyethylene terephthalate glycol (PETG) and 2 to 4 parts of acrylonitrile-butadiene-styrene (ABS) high-adhesive powder. The invention also discloses a preparation method of the clay powder for the puppet animation, which comprises the steps of modifying the attapulgite, coloring the modified attapulgite, mixing the materials and the like. The obtained clay material is exquisite and stable, has a good coloring effect, is non-greasy and colorfast, has high plasticity, low shrinking percentage after being formed and excellent compressive property, is convenient and durable, and can improve the shaping effect of puppet animation figures.

The invention relates to a contraceptive, in particular to an intelligent compound gestodene vaginal ring preparation with a memory effect. A vaginal ring consists of a controlled release membrane, a gestodene/ethinyloestradiol-containing carrier and a shape memory material, and can slowly release a contraceptive at constant speed within 21 days. By implementing the preparation, the remarkable contraception effect can be achieved, the inconvenience caused by the oral administration of the contraceptive is avoided, and the appliance of the administration is improved.

The present invention relates to the preparation of medicine for preventing and treating lead poisoning. Technological, the present invention features that natural polymer chitosan and metal ion formcompound, the compound is crosslinked and metal ion eliminated to form "template", and the "template" is used to adsorb harmful heavy metal ions selectively while absorbing no beneficial metal ion. The present invention is superior to available heavy metal ion repellent in that it has selectivity to heavy metal ions.

A gear lever support (3) comprising a housing (6) provided with an inner sidewall (7) and a bottom (8) together forming a cavity (9), said gear lever support (3) comprising a seat (10) housed in the cavity (9) provided with a bearing (14) mounted on a reinforcement (15) in contact with the housing (6), the bearing (14) being separated from the sidewall (7) by a clearance (31) and being separated from the bottom (8) by means of the reinforcement (15).

The invention discloses a high-softness, high-toughness and cracking-resistant sheath material and a preparation method thereof. The high-softness, high-toughness and cracking-resistant sheath material is specifically prepared from polyolefin elastic fibers through the processes of spiral curling, irradiation crosslinking, high-speed mixing, parallel twin-screw extrusion granulation, dipping in a dipping machine head and the like. The product can be used for extruding sheath materials of elevator cables, coal mine cables, crane cables, tower cranes and stacker cables, the sheath of the product has high flexibility, toughness and anti-cracking performance, sheath cracking caused by bending and folding can be avoided in the using process, normal operation of the cables is guaranteed, and the service life of the cables is prolonged.

The invention discloses a hydro-generator excitation power supply system based on a hydrogen fuel cell. A hydropower station hydrogen production system (1) is connected with a hydropower station hydrogen storage system (2) through a hydrogen conveying pipeline (3), and the hydropower station hydrogen storage system (2) is connected with a hydrogen fuel cell stack (4) through the hydrogen conveyingpipeline (3); the hydrogen fuel cell stack (4) is connected with a bus on the direct-current excitation power switch cabinet (9) through a cable, and the output end of the hydrogen fuel cell stack (4) is connected with the hydrogen-electricity combined control cabinet (8) through a pipeline. The system overcomes the defects of serious environmental pollution and even personal safety hazard causedby leakage in the prior art, and has the advantages that regular charging and discharging are not needed, a memory effect is avoided, and the performance of the whole battery cannot be reduced year by year.