136results about How to "Increase space volume" patented technology

Disclosed is an organic / inorganic composite porous film comprising: (a) a porous substrate having pores; and (b) an active layer formed by coating a surface of the substrate or a part of the pores in the substrate with a mixture of inorganic particles and a binder polymer, wherein the inorganic particles in the active layer are interconnected among themselves and are fixed by the binder polymer, and interstitial volumes among the inorganic particles form a pore structure. A method for manufacturing the same film and an electrochemical device including the same film are also disclosed. An electrochemical device comprising the organic / inorganic composite porous film shows improved safety and quality, simultaneously.

Some embodiments disclosed herein relate to a medical connector having a selectively closable male end portion. Embodiments are configured to open upon connection with a female connector or female tipped medical implement. Some embodiments include an internal cavity configured to change size as the connector moves from the open to closed or closed to open positions. In some embodiments, the connector is configured to draw fluid from the male end toward the other end of the connector as the connector closes.

The invention relates to waterproof moisture permeation polyurethane paint used for textiles and a preparation method. The waterproof moisture permeation polyurethane paint is prepared from methyl diphenylene diisocyanate, toluene di-isocyanate, polyether glycol (with the molecular weight of 2000), linear dihydroxylated alkylsiloxane (with the molecular weight of 1000), polyester dihydric alcohol (with the molecular weight of 2000), trimethylolpropane, chain extending agents, sealing compounds, dibutyl tin laurate and solvents through the processes of pre-polymerization reaction, chain extension reaction and sealing reaction. The production process is simple, and the products have the advantages of self-crosslinking effect, soft hand feeling, good cold resistance performance, high moisture permeation performance, high water pressure resistance and little reduction after water pressure resistance washing.

The invention relates to a permeability improvement technology for a coal bed gas reservoir cap by using three-dimensional fracture network modification. The technology is as follows: building a bedding horizontal well from ground to top and bottom plates of the coal bed of an area not mined; building bedding, three-dimensional cross-type or multi-branch long boreholes on the top and bottom plates of the coal bed of the area not mined through perforation and segmented fracturing or existing sinking and driving engineering, and then carrying out hydraulic fracturing; modifying the coal bed gas reservoir cap into a crisscross fracture network system to form a modified volume; building various types of drainage boreholes in the modified volume; and carrying out negative pressure extraction together with a fractured well, so that coal bed gas can be continuously desorbed and dispersed and then extracted out in large scale through the modified volume. According to the invention, the crisscross fracture network system is formed in the coal bed gas reservoir cap, so that the coal bed gas can be continuously desorbed and dispersed at negative pressure and then extracted out in large scale through the modified volume, thus the content of coal bed gas in the modified bed can be quickly reduced to be below the safety standard in the outburst prevention formulation, and safe and high-efficiency production of mines can be realized on the basis of forming scale coal bed gas development.

The invention relates to the technical field of organic photoelectric materials, and in particular, relates to an organic compound, an electronic element containing the same and an electronic device.The compound has a structure represented by a chemical formula 1', wherein one of R1, R2, R3 and R4 is a group defined in the specification, and the other three are selected from substituents such asalkyl, halogen and cyano; one of R5, R6, R7 and R8 is a group defined in the specification, the other three are selected from substituents such as alkyl, halogen and cyano, Y and Y1 are respectively and independently a group defined in the specification, and L and L1 are single bonds, aryl, heteroaryl and the like. By using the organic compound in an electronic component, the driving voltage, luminous efficiency, and life of the electronic component are improved.

A gas purging unit and an inkjet head with the same. The gas purging unit has an exhaust chamber with a connecting hole to communicate with an ink passage and an exhaust hole that communicates with an outside. A gas permeable membrane is installed at the connecting hole. A negative pressure generator is provided inside the exhaust chamber to operate through an external force and generate a negative pressure with less pressure than a pressure inside the ink passage. A check valve is installed at the exhaust hole to open the exhaust hole when the external force operates the negative pressure generator and to close the exhaust hole by a force of the negative pressure after the external force is removed.

A thick-wall small-diameter high-pressure fuel injection pipe has a spherical seat surface, an annular flange, and a conical surface continued from the seat surface at a connecting end of the pipe. If the pipe is configured so that t (thickness) / D (outer diameter)<0.3, then an axial distance from the connecting head end to the back face of the annular flange is 0.38D to 0.6D, a spherical radius of the seat surface is 0.45D to 0.65D, the annular flange outer diameter is 1.2D to 1.4D, and an inner peripheral surface of the head has a substantially flat cylindrical surface or a conical surface. If the pipe is configured so that t (thickness) / D (outer diameter)≧0.3, then the axial distance from the connecting head end to the back face of the annular flange is 0.38D to 0.7D.

Disclosed is an organic / inorganic composite porous film, having: (a) inorganic particles; and (b) a binder polymer coating layer formed partially or totally on surfaces of the inorganic particles, wherein the inorganic particles are interconnected among themselves and are fixed by the binder polymer, and interstitial volumes among the inorganic particles form a micropore structure. Further disclosed is a porous film having: (a) a porous substrate having pores; and (b) a coating layer formed on at least one region selected from the group consisting of a surface of the substrate and a part of the pores present in the substrate, wherein the coating layer comprises styrene-butadiene rubber. Also disclosed is an electrochemical device containing the organic / inorganic composite porous film, a method of manufacturing the film.

A collapsible shipping container for perishable goods is comprised of an inner, stiff, corrugated paperboard box having interior surfaces forming an enclosure of defined shape and opposing exterior surfaces. A surrounding skin of thermally insulating material is adhesively secured to the exterior surfaces of the corrugated paperboard box. The thermally insulating skin envelopes the box therewithin. Unlike conventional systems, the thermally insulating skin is located on the outside surfaces of the box, and not within the box. A collapsible shipping container according to the invention to a large extent prevents heat from ever entering the box.

The invention relates to a multi-shaft extruder for the continuous treatment and / or processing of bulk material, especially a powdery, granular or flocculent product, comprising a plurality of shafts (3) which are arranged in a crown-like manner in a cavity (1) of an extruder housing (2), said shafts extending parallel to the axial direction (A) of the extruder and forming an inner processing chamber (1a) inside the crown, and an outer processing chamber (1b) outside the crown. Each shaft carries a number of axially successive processing elements (4), at least part of the same being elements (4a; 4c; 4e) having a transporting effect, and with which adjacent shafts engage in a sealed manner at least in partial regions. At least one transporting endless screw element (4b; 4d; 4f) comprising at least one transporting screw thread (9, 10; 14, 15, 16; 19, 20) is placed in the region of the supply opening (21) in the extruder housing (2), and does not engage in a sealing manner in at least one partial region along the axial direction (A).

The invention discloses high-content aqueous polyurethane latex and a preparation method thereof. (A) hydrogenated diphenylmethane diisocyanate, (B) fatty group diamino sulfonic acid sodium salt, (C) linear bihydroxyalkyl siloxane, (D) dimer acid polyester dibasic alcohol; (E) 2-methyl-2, 4 pentanediol, (F) 1, 3 cyclohexanediol, (G) chain extender, (H) fatty alcohol-polyoxyethylene ether TO7, and (J) deionized water are used for preparing the high-content aqueous polyurethane latex through a prepolymerization reaction, a chain-extending reaction and an emulsion reaction. The invention has the advantages of low production cost, 55% of solids content, good water pressure resistance, fastness, abrasion resistance, favorable washability and aqueous environmental protection.

The invention discloses a preparation method for isocyanate-modified epoxy acrylate, which comprises the following steps that: the epoxy resin and the inhibitor are added in a reaction vessel and the mixtures are stirred at a speed ranging from 150 to 250r / min so as to raise the temperature to 90 to 100 DEG C; then the mixtures of the acylic acid and the catalysts are added in drop by drop and the obtained mixtures are stirred to carry out a reaction for 3 to 4 hours at a speed ranging from 250 to 350r / min with controlling the temperature to rang 110 to120 DEG C so as to obtain the epoxy acrylate; the temperature of the mixtures in the reactor vessel is lowered to 50 to 60 DEG C and then the isocyanate is added in the mixtures drop by drop, and the mixtures are stirred to conduct the reaction for 0.5 to 2 hours at a speed ranging from 250 to 350r / min so as to obtain the modified epoxy acrylate. The light-cured resin obtained through the method of the invention has lower viscosity and excellent flexibility.

The invention relates to an aromatic compound having thermally activated delayed fluorescence (TADF) properties. The aromatic compound has a structure of formula (I), wherein D is an electron donor; Ais an electron acceptor; R10 and R20 each is cycloalkyl; m and n are respectively the number of electron donors D and electron acceptors A attached to formula (I); d and e are respectively the numberof substituents R10 and R20; f is the number of parent nuclear phenyls; f is 1 or 2; d and e are respectively 1 or 2; m and n are respectively 1, 2 or 3; when f = 1, m + n + d + e is less than or equal to 6; and when f = 2, m + n + d + e is less than or equal to 10. The aromatic compound provided by the invention has a light-emitting mechanism of TADF, has high light-emitting efficiency, can increase the light-emitting efficiency of an organic light-emitting display device when the aromatic compound is as a light-emitting material, a light-emitting subject material or object material appliedto the organic light-emitting display device, and has the advantages of relatively low cost and longer service life. The invention also provides the organic light-emitting display device.

The invention relates to a supported catalyst of olefin polymer, which uses 1, 4-dialkyl compound with two cyclic structures in molecular skeleton as internal electron donor compound, to obtain large spatial volume, while the inventive supported catalyst has high catalytic activity for catalyzing propone polymerization. While assisted with promoter and external electron donor, and the product polypropylene has high stereoregularity. The invention further discloses a preparation method of supported catalyst.

The invention provides an organic compound, an organic electroluminescent device and an electronic device. The chemical structure of the organic compound comprises an adamantane spirofluorene ring anda dibenzo five-membered ring, and the organic compound has an excellent energy transfer function, can be used as a luminescent layer material in an electroluminescent device, improves the efficiencyof the organic electroluminescent device and prolongs the service life of the organic electroluminescent device.

The invention relates to a preparation method of a spiropyrane photochromic optical material. The surface of the optical material prepared by adopting the preparation method is coated with a photochromic coating, the coating contains a polyurethane / spiropyrane / zinc sulfide composite multilayer photochromic material, a core of the coating is zinc sulfide mesoporous nano microspheres, an intermediate layer is a photochromic layer composed of spiropyrane compounds, and a shell is polyurethane; and the outer diameter of the composite microspheres is 50-350nm, the diameter of the zinc sulfate mesoporous nano microspheres is 30-250nm, the thickness of the intermediate layer is 5-25nm, and the thickness of the shell is 5-25nm. The optical material prepared by adopting the preparation method can become colored from colorless under ultraviolet irradiation condition, can also be rapidly faded to be colorless after ultraviolet rays disappear and has the advantages of strong fatigue resistance, good stability and high color-changing speed.

The invention discloses a photochromic nano composite microsphere and an application thereof. The photochromic composite microsphere has a three-layer composite core-shell structure, an inner core isa zinc sulfide mesoporous nano microsphere, a middle layer is a photochromic layer formed by a spiropyran compound, and an outer layer is polyurethane; and the outer diameter of the composite microsphere is 50-350nm, wherein the diameter of the zinc sulfide mesoporous nanosphere is 30-250nm, the thickness of the middle layer is 5-25nm, and the thickness of the outer shell is 5-25nm. The photochromic composite microsphere provided by the invention can be used to prepare a photochromic coating or doped into a resin optical material to prepare a photochromic material. The material can be changedfrom colorless to colored under the irradiation of ultraviolet rays, and after the ultraviolet rays disappear, the material can be quickly faded into colorless, and has the advantages of strong fatigue resistance, good stability, a fast color change speed and the like.

An improved retractor device which includes a first main flat arm portion for extending along the outer surface of a patients cheek, that can be grasped by the dentist or hygienist performing the procedure; (or even in some cases, the patient); a second arm that extends into the mouth in use and is attached to the main arm at an acute angle of approximately fifty degrees and having that connecting area gently curved convexly from upper lip to lower lip and concavely from the intraoral to the extraoral portions so as to present a atraumatic surface to oral commissure, and the intraoral arm being convex as it extends to the posterior part of the mouth and getting narrower as it goes posteriorly and ending in a high convex end portion that extends behind the last tooth to reflect the cheek outwardly and posteriorly to produce an increased volume of space for conducting the dental procedure in a dry field and with greater and better comfort, access and visualization.

The invention discloses a device and a method for controlling welding stress and deformation by combining heating with welding and chilling. The device comprises a supporting system as well as an automatic travelling device, a welding system, a heating system and a cooling system which are connected with the supporting system. A welding seam high-temperature region is cooled, and near weld zones at the two sides are heated, so that dynamic multi-stretching effect is generated; requirements on constraints of a clamp are avoided, and welding is carried out under a non-constraint condition, so that control on welding residual stress and deformation is realized to carry out welding under a non-support condition, and relatively great space volume is not occupied.

The invention discloses a flux-switching linear motor based rail transit velocity fluctuation inhibition method. Metro vehicles can operate in variable speeds and constant speeds during operation; in order to achieve the purpose of inhibiting positioning forces and velocity fluctuation, when the metro vehicles operate in variable speeds, a novel control strategy that a method of a position x-domain repetitive controller in combination with an R-PI regulator is used to inhibit the positioning forces is provided, wherein the method comprises the steps that firstly, a time-varying t-domain signal is converted into an x-domain signal with a fixed cycle, and the x-domain signal is subjected to designing of the repetitive controller; when the metro vehicles operate in constant speeds, the method of a time t-domain repetitive controller in combination with the R-PI regulator is used; meanwhile, in order to accurately obtain position and speed information of a linear flux-switching permanent magnet motor (LFSPM), a position recursive control algorithm is provided for replacing position sensor technology.

The invention relates to a discharge plasma generation device for industrial waste gas treatment. The discharge plasma generation device comprises metal rod electrodes with tip ends, insulating dielectric tubes, conductor electrodes arranged in the insulating dielectric tubes and an alternating-current high-voltage power source; the metal rod electrodes and the insulating dielectric tubes are alternately and evenly installed on an insulator frame at equal intervals in a single-layer or multi-layer manner; all the metal rod electrodes are connected together through wires so as to form wiring terminals I; all the conductor electrodes arranged in the insulating dielectric tubes are connected together through wires so as to form wiring terminals II; and the wiring terminals I and the wiring terminals II are connected with the alternating-current high-voltage power source through a matching network, so that an electric loop can be formed.

The invention discloses an epoxy acrylate for a UV (ultraviolet) curable coating and a preparation method of the epoxy acrylate, and the epoxy acrylate is characterized in that: a side chain of the epoxy acrylate is bonded with hyperbranched polysiloxane with methacryloxy and / or vinyl by chemical bonds. The preparation method comprises the following steps of: mixing silicane with deionized water,reacting the mixture under N2 protection to obtain hyperbranched polysiloxane; dropwise adding a mixture solution composed of acrylic acid, polymerization inhibitor and catalyst into in epoxy resin, so as to obtain epoxy acrylate; dropwise adding a mixture composed of the hyperbranched polysiloxane and catalyst into the obtained epoxy acrylate, stirring and reacting the mixture, purifying and drying the reaction product to obtain the epoxy acrylate for UV curable coating. Compared with the existing epoxy acrylate coating, the epoxy acrylate coating prepared by the method has the advantages oflow viscosity, high heat resistance, good flexibility and good water resistance. The preparation method also has advantages of wide applicability and simple operation technology.

A kneader includes a casing with a papermaking material supply opening and a papermaking material outlet located below the papermaking material supply opening; at least first, second, third and fourth rotational shafts provided inside the casing; first blades attached to the first rotational shaft; second blades attached to the second rotational shaft; third blades attached to the third rotational shaft; and fourth blades attached to the fourth rotational shaft. The first rotational shaft and the second rotational shaft are located at the same height and are arranged parallel to each other, and the third rotational shaft and the fourth rotational shaft are located at the same height and are arranged parallel to each other. The third rotational shaft is located under the first rotational shaft and the fourth rotational shaft is located under the second rotational shaft, respectively.

The invention discloses an elastic hydrophobic organic conjugated polymer, a synthesizing method thereof and an application thereof to removing of organic matters from water. The synthesizing method comprises the following steps of: connecting a benzene ring with an acetylene bond; particularly adding a catalyst, a nonpolar solvent and the like into 1.4-diacetylene-benzene and a 1,3,5-tribromobenzene derivative or a 1,3,5-triiodo benzene derivative serving as substrates in an inert atmosphere; undergoing a polymerization reaction; and filtering, washing, drying and the like to obtain a product. The product is centimeter grade or millimeter grade elastic particles containing a plenty of mesopores and gaps, so that material density is very low; and meanwhile, the copolymer has high elasticity and high hydrophobic property. When adsorption of liquid organic matters is saturated in the polymer, the polymer is taken out of an aqueous solution, organic matters are removed through mechanicalextrusion, and polymer particles can be used repeatedly, so that the cost on removal of the organic matters from water is lowered. The elastic hydrophobic organic conjugated polymer is suitable for batch production and environmental protection.

The invention provides a spiropyrane photochromic coating and a preparation method thereof. The coating contains a polyurethane / spiropyrane / zinc sulfide composite multilayer photochromic material; aninner core of the coating is a zinc sulfide mesoporous nano-microsphere; an intermediate layer of the coating is a photochromic layer formed by a spiropyrane compound; a shell of the coating is polyurethane; the outer diameter of the composite microsphere is 50-350nm; the diameter of the zinc sulfide mesoporous nano-microsphere is 30-250nm; the thickness of the intermediate layer is 2-25nm; the thickness of the shell is 5-25nm. The photochromic coating prepared by the method can be used as a photochromic material or a surface color-changing layer of an optical lens; the coating is capable of changing from colorless to colored under irradiation of ultraviolet light, is also capable of rapidly fading to colorless after the ultraviolet light disappears, and has the advantages of high fatigueresistance, high stability, rapid color-changing speed and the like.

The invention discloses a position-sensor-free control method for a transformer substation patrol robot. The method comprises the steps that before the robot is started, voltage pulses are applied to a driving motor of the robot two times, a responsive inductance value is solved according to the current change rate detected by a current sensor, and then the rotor position angle of the driving motor before starting of the robot is obtained by combining a judgment method of a motor rotor magnetic pole according to the function relation of the motor position angle and the inductance value. After the robot operates, motor drive is based on the SVPWM control technology, three different voltage vectors exist in the PWM period of every time, the voltage vectors correspond to different phase current change values, counter electromotive force is obtained by measuring the phase current change values corresponding to the different voltage vectors and combining voltage values, and finally the active cell position of the driving motor of the robot is obtained in real time. According to the method, the position information of the driving motor of the robot can be obtained accurately and effectively.