41results about How to "Adjust the adsorption capacity" patented technology

The invention discloses a preparation method of ultrahigh crosslinking type absorbent resin modified by polyethylene polyamine. The preparation method comprises the steps of: adding chloromethyl polystyrene resin well swelling in a solvent into lewis acid to serve as a catalyst, and performing Friedel-Crafts (F-S) reaction at the temperature of 80-100 DEG C for 0.5-0.9 h to obtain ultrahigh crosslinking type absorbent resin; and reacting the obtained resin with the polyethylene polyamine at the temperature of 100-140 DEC G for 15-22 h under the protection of N2 to prepare the ultrahigh crosslinking type absorbent resin modified by the polyethylene polyamine. According to the preparation method disclosed by the invention, the surface of the prepared ultrahigh crosslinking type absorbent resin is loaded with the polyethylene polyamine with different contents, the adsorbability of the resin to substances with weak polarity and polarity can be obviously improved, the F-C reaction time canbe simply controlled to realize selective absorption to different polarity substances such as naphthol, phenol, polyethylene polyamine and the like, and the preparation method has a wide application prospect in the fields of treatment and recycle of the phenol and organic acid wastewater.

Provided are a friction sir welding device that is light in weight and can travel by a small force, a suction pad used for the friction sir welding device, and a friction stir welding system. The suction pad (46) includes a plate-like facing section (51) facing an object to which the suction pad sticks; an annular pad section (52) projecting from one surface in the thickness direction of the facing section (51) at its end near the object and making a round on the surface of the facing section (51); a gliding body (53) provided on the surface of the pad section (52) at a portion near the object; and one or more deformation prevention projections (56) projecting from the one surface in the thickness direction of the facing section (51). The gliding body (53) is made of a material having a friction coefficient against the object which is smaller than the friction coefficient of the pad section (52) against the object.

A hydrogen evolution catalyst and a preparation method thereof belong to the field of catalysis. Provided are a novel nitrogen-and-phosphor-codoped hollow carbon / iron phosphide composite catalyst and a preparation method thereof. According to the method, uniform mixing of a nitrogen source, a carbon source, a phosphor source, an iron source in a precursor are ensured, and a process of nitridation, phosphatization and carbonization is achieved through one-step high-temperature pyrolysis to prepare a phosphide having a hollow carbon inner wall inlaid with transition metal. The catalyst is high in catalytic activity, low in hydrogen evolution over potential, and prolonged in cycle life. The catalyst is low in cost of raw materials and easy to prepare.

The invention discloses an intelligent double-side glass wiping robot. The robot comprises a driving machine, a follow-up machine and a control device. The driving machine comprises a driving machine body, an active walking device and an active attraction device, the active walking device and the active attraction device are located in the driving machine body, the active attraction device is connected with a lifting device and ascends or descends through the lifting device, and a wiping piece is arranged on the bottom surface of the driving machine body. The follow-up machine comprises a follow-up machine body, a follow-up walking device and a follow-up attraction device, the follow-up walking device and the follow-up attraction device are located in the follow-up machine body, the follow-up attraction device and the active attraction device attract each other, and a wiping piece is arranged on the bottom surface of the follow-up machine body. The control device is connected to the active walking device and controls the active walking device to walk. By arranging the driving machine, the follow-up machine and the corresponding attraction devices, the robot can attract glass and wipe double sides of the glass; by arranging the lifting device in the driving machine body, attraction force between the active attraction device and the follow-up attraction device can be adjusted, and then the robot can attract glass of different thicknesses. The robot has the advantages of being simple in structure and low in cost.

The invention discloses a blind window with a dustproof function. The blind window comprises an upper rail, blades, a lower rail and two hoisting ropes, wherein the upper rail and the lower rail are distributed in parallel; the plurality of blades are arranged between the upper rail and the lower rail; the upper rail is internally provided with a tubular motor; the tubular motor drives a coiled pipe to rotate; the coiled pipe is provided with two winders; each winder is wound by a lifting rope; each lifting rope stretches out of the upper rail and penetrates through each blade to extend to the lower rail; the blades are made of metal sheets; the upper rail is internally provided with a shunt; the shunt divides an input power line into two paths; one path drives the tubular motor to drive the coiled pipe to rotate; the other path is converted into direct current through an alternating-direct-current conversion device; an anode and a cathode of direct current are respectively connected into one lifting rope; the anode and the cathode are respectively connected to a resistor internally arranged in the lower rail through a direct-current power supply electrode; the resistor is welded with a plurality of electrodes; all the electrodes are mutually insulated; a lead wire bundle is combined by lead wires; and the lead wire bundle is led out from the lower rail and extends upwards, and penetrates through each blade to supply power to each blade.

The invention relates to application of meat product processing, meat protein glycosylation and flavor regulation. According to the related application, the purpose of regulating and controlling the adsorption capacity of meat protein to flavor substances is achieved through glycosylation with reducing sugar and meat protein are used as raw materials, so that the adsorption capacity of the proteinto flavor substances such as aldehyde, ketone and ester can be enhanced through glycosylation of the meat protein. Compared with the addition of flavor enhancers such as monosodium glutamate, synthetic essence and the like, the method has the characteristics of safety, greenness and health; on the premise of reducing harm to human bodies, the requirements of people for different flavors of meat products can be met, and the method has a theoretical guidance effect on regulating and controlling the adsorption capacity of flavor substances through glycosylation in the processing process of the meat products so as to improve the flavor of the meat products.

The invention discloses a single-core low-speed four-wheel mini mouse sprint controller, comprising a battery device, a sensor device, a gyroscope device, a vacuum suction device and a control unit module; a pair of the four wheels of the mini mouse is positioned in the middle of the mini mouse, and the other pair is arranged on the tail part of the mini mouse; the gyroscope device comprises a gyroscope G1 and a speedometer A1; the gyroscope G1 is a three shaft gyroscope which is used for measuring movement of three rotation directions; and the speedometer A1 is a three-shaft speedometer used for measuring accelerated speed of three translational motions. The invention solves the slipping of the mini mouse during the walking through the vacuum suction device arranged under a chassis, and automatically adjusts the servo control of the vacuum suction DC motor M according to the marching speed of the mini mouse and the ground situation, so that the mini mouse is not limited to the ground situation of the maze.

The invention discloses a preparation method of ultrahigh crosslinking type absorbent resin modified by polyethylene polyamine. The preparation method comprises the steps of: adding chloromethyl polystyrene resin well swelling in a solvent into lewis acid to serve as a catalyst, and performing Friedel-Crafts (F-S) reaction at the temperature of 80-100 DEG C for 0.5-0.9 h to obtain ultrahigh crosslinking type absorbent resin; and reacting the obtained resin with the polyethylene polyamine at the temperature of 100-140 DEC G for 15-22 h under the protection of N2 to prepare the ultrahigh crosslinking type absorbent resin modified by the polyethylene polyamine. According to the preparation method disclosed by the invention, the surface of the prepared ultrahigh crosslinking type absorbent resin is loaded with the polyethylene polyamine with different contents, the adsorbability of the resin to substances with weak polarity and polarity can be obviously improved, the F-C reaction time canbe simply controlled to realize selective absorption to different polarity substances such as naphthol, phenol, polyethylene polyamine and the like, and the preparation method has a wide application prospect in the fields of treatment and recycle of the phenol and organic acid wastewater.

The invention relates to the application of cross-linked chitosan porous microspheres in cigarette filter tips. During the filter stick forming process, the cross-linked chitosan porous microspheres are uniformly sprayed into tobacco shreds, paper filter elements or non-woven filter cloth or added into the cavities of three-element hollow filter sticks. The cross-linked chitosan porous microspheres are porous spherical particles with a specific surface area of 35-300 m2 / g. The microspheres particle size distribution range of the cross-linked chitosan porous microsphere is 10-500 Mum, and the pore size is 5-100 nm. The additional amount of the cross-linked chitosan porous microspheres is 10-260 mg / cigarette. The volume of natural stack of the cross-linked chitosan porous microspheres is 0.6-3.0 cm3 / g. the cross-linked chitosan porous microspheres provided by the invention can satisfy the need for filter stick forming process. The release of crotonaldehyde in the main stream smoke of cigarettes can be effectively reduced by adding the cross-linked chitosan porous microspheres into the filter sticks.

The embodiment of the invention provides a terminal adsorption control method and a terminal. The terminal comprises an MCU, a sensor, a current controller and a magnetic attraction assembly, and theMCU communicates with the sensor and the current controller. The method comprises the steps that the MCU obtains the sensing data collected by the sensor and the placement state, detected by the sensor, of the terminal; the MCU determines a magnetic force threshold value required to be generated by the magnetic attraction assembly by adopting the sensing data and according to the placement state;and the MCU controls the current controller to adjust the electrifying current of the magnetic attraction assembly, so that the magnetic attraction assembly generates the magnetic force greater than or equal to a magnetic force threshold value. According to the scheme, the magnetic force of the magnetic attraction assembly changes along with the change of electrified current, the current controller is controlled by the MCU to adjust the magnitude of the electrifying current of the magnetic attraction assembly, and the magnitude of the magnetic force generated by the magnetic attraction assembly is dynamically changed, so that the adsorption force of the terminal on the placement surface is dynamically adjusted, and the terminal can be flexibly placed and deployed under the condition of ensuring the firm adsorption.

The invention relates to a method for controllably preparing hollow molecularly imprinted nanorods with halloysite as a template, which belongs to the technical field of preparation of environmental functional polymer materials. Using the abundant, cheap and easy-to-obtain natural mineral halloysite nanotubes as a template; through silanization reaction, vinyl groups are grafted on the surface of halloysite, and the surface is in-situ precipitated and polymerized, and the surface of halloysite is coated with molecular imprinting The thickness of the polymer layer is uniform, and the size can be regulated by the amount of polymerized monomers; the halloysite is etched and removed to obtain hollow molecularly imprinted nanorods, and the utilization rate of active binding sites per unit mass is improved. The hollow molecularly imprinted nanoparticles prepared by this method have good thermal and chemical stability, and have been successfully applied to the efficient and selective recognition and separation of chloramphenicol in water environments. change, while excellent regeneration performance.

The invention discloses a non-woven fabric surface heavy nitrogen coupling gelatin adsorbing material and a preparation method thereof. The method comprises the following steps of: grafting an unsaturated monomer with carboxy to the surface of a macromolecule non-woven fabric base material by using an ultraviolet induction technique so as to introduce the carboxy; furthermore introducing aromatic amine through catalytic condensation of aroma diamine and carboxy; subsequently, converting the aromatic amine into diazo salt; coupling and immobilizing the gelatin on the surface of the non-woven fabric through diazo coupling reaction; and finally, soaking in hot water and eliminating the uncoupled gelatin so as to prepare the non-woven fabric surface diazo coupling gelatin absorbing material. The absorbing material is good in hydrophilicity, namely, the water absorption rate is greater than 292.3%; the solid load and the absorption rate of the gelatin can be adjusted in a large range, the absorbing material has high absorption capability for tannin; and when the tannin concentration is 200-400mg / L, the balance absorption capacity is within 16.8-53.2mg / g, and the absorption balance can be achieved within 3 hours.

The invention discloses a single-core low-speed four-wheel little mouse full-digital navigation servo controller comprising a chassis. A battery device, a sensor device, a gyroscope device, a vacuum suction device and a control unit module are arranged on the chassis. Two pairs of moving wheels are connected at the two sides of the chassis. One pair of the moving wheels are arranged at the middle part of the chassis, and the other pair of the moving wheels are arranged at the tail part of the chassis. The gyroscope device comprises a gyroscope G1 and an accelerometer A1. The gyroscope G1 is a triaxial gyroscope which is used for measuring movement of three rotating directions. The accelerometer A1 is a triaxial accelerometer which is used for measuring acceleration of three translational movements. The phenomenon of slipping of the little mouse in navigation can be solved by the vacuum suction device arranged below the chassis. Meanwhile, servo control of a vacuum suction DC motor M can be automatically adjusted according to advancing speed of the little mouse and the ground conditions so that the little mouse is enabled not to be limited by the ground conditions of a maze.

The invention discloses a double-core high-speed two-wheeled picomouse full digital navigation servo controller, comprising a chassis provided with a cell device, a sensor device, a gyroscope device G, a vacuum suction device and a control unit module; two sides of the chassis are in connection with motion wheels. The controller solves the problem of skidding of a picomouse in walking through the vacuum suction device arranged under the chassis, and meanwhile automatically regulates the servo control of a vacuum suction direct current motor M according to the walking speed of the picomouse and ground conditions, thereby preventing the picomouse from being bound to labyrinth ground road conditions.

The invention provides a stannic oxide (SnO2) membrane electrode material for a dye-sensitized solar cell and a preparing method thereof. A carbon sphere synthesized through a hydrothermal method is utilized as a formwork, alkali treatment is carried out on the carbon sphere formwork to enhance the adsorbing capacity of the surface layer of the carbon sphere formwork to stannic ions, meanwhile the concentration of precursor tin salt solution is regulated to prepare the stannic oxide multi-shell hollow sphere with two adjacent outmost shells, and the hollow spheres are utilized as the dye-sensitized solar cell electrode materials to increase transmission paths of light in the membrane electrode. The stannic oxide membrane electrode material has excellent light scattering capacity, improves the absorption rate of dye molecules to light and obviously improves the photoelectric converting efficiency of the dye-sensitized solar cell. In addition, the preparing method has certain universality. The Zno, TiO2, Co3O4, CuO and Fe2O3 multi-shell hollow sphere with the two adjacent outmost shells is prepared by changing metal precursor salt solution. The preparing method is convenient to operate, high in controllability and wide in application prospect.

The invention belongs to the field of sample grinding and polishing, and in particular, relates to a high-temperature stretching sample grinding and polishing device and an application method thereof. The device comprises a grinding and polishing device main body, a neodymium iron boron strong magnet, a sealing cover, a first stretching sample tank, a second stretching sample tank, and an absorption limiting device mounting tank, wherein the first stretching sample tank and the second stretching sample tank are across arranged on one side surface of the grinding and polishing device main body; the sealing cover is mounted on the other side end surface of the grinding and polishing device main body; a hollow groove is formed in the middle part of the grinding and polishing device main body as the absorption limiting device mounting tank of the neodymium iron boron strong magnet; and the neodymium iron boron strong magnet is mounted in the absorption limiting device mounting tank. The device is simple in operation and high in grinding and polishing stretching sample efficiency, greatly improves the surface quality of grinding and polishing stretching samples, and facilitates high-temperature stretching tests for the stretching samples.