386results about How to "Special structure" patented technology

A roaster comprises a main container equipped with the space in the inner portion; an upper supporter including a flame hole equipped at the side facing the bottom side of the main container, and a roasting plate supporting part equipped at the circumference position of the flame hole, and is combined to the main container; a fuel vessel which has a fuel filling part is formed in the inner space and a spacer equipped in the outer periphery position of the fuel filling part, and which is positioned in the main container to be positioned at the opposite direction to the flame hole of the upper supporter and which is arranged as the state separated from the spacer.

A method for forming metal wires by microdispensing a pattern is disclosed. The method includes the steps of microdispensing a catalyst pattern on the substrate and forming metal wires by electroless plating. Before the step of microdispensing catalyst pattern, the surface properties of the substrate have been improved by a surface modification treatment.

The invention provides a grapheme modified polypropylene master batch and a preparation method thereof. The grapheme modified polypropylene master batch comprises the following raw materials in parts by weight: 100 parts of polypropylene particles, 0.01 to 5 parts of grapheme dry powder, 0.01 to 1 part of an antioxidant, 0.1 to 10 parts of a plasticizer, 1 to 10 parts of a light stabilizer, 1 to 10 parts of a lubricant, and 0 to 40 parts of a filler. The preparation method comprises the following steps: performing spraying modification on the polypropylene particles through the grapheme dry powder with static electricity, uniformly mixing the modified polypropylene particles with the rest of constituents, then feeding the mixture into a double-screw extruder for fusing and mixing, and finally extruding for granulation. The method enhances the mechanical property of the polypropylene material under the condition that the heat-conducting property of the polypropylene material is greatly improved.

This invention relates to a method for preparing low-temperature-sintered lithium-niobium-titanate composite microwave dielectric ceramic, which is composed of Li2TiO3 solid solution and M-phase solid solution. The composite microwave dielectric ceramic is prepared from Li2CO3, Nb2O5 and TiO2 at a mol ratio of 5: x: y (x is in 1-2 and y in 4-6), and B2O3 or V2O5 0-5 wt. % by conventional solid-phase reaction. The composite microwave dielectric ceramic has a low sintering temperature (about 1100 deg.C), good dielectric property with a dielectric constant of 34-50, a high Q*f value (Q is quality factor), and a low resonance frequency temperature coefficient, and can be used in sheet dielectric resonator, filter, antenna, balun, etc. when added with a small quantity of low-melting-point oxide, the composite microwave dielectric ceramic has a lower sintering temperature of about 900 deg.C, while its good microwave dielectric property can be maintained.

The invention provides a vehicle carrying scheme that lifting racks are used for lifting a vehicle above a vehicle top so as to perform leap-type translation in order to solve the problems that existing parking devices with the comb teeth for supporting, storing and withdrawing the vehicle are low in using ratio of the ground, inflexible in application, poor in storing and withdrawing efficiency and the like. Besides, by means of mutually communicated storing and withdrawing rack channels which are distributed below all comb-shaped parking racks of a parking queue, comb-shaped storing and withdrawing racks of carriers can directly and rapidly move and operate between each comb-shaped parking rack and vehicle storing and withdrawing port, the process of lifting and putting the road vehicle to a garage can be simply finished by the aid of comb-shaped lifting racks which are arranged at positions of the vehicle storing and withdrawing ports, a system is effectively simplified, and the efficiency is increased.

The invention discloses an immobilized biological adsorbent containing phanerochete chrysosporium, the surface of which is uniformly wrapped by a layer of carrier Fe3O4 nanoparticles for fixation. The method comprises the steps of: first adding Fe3O4 nanoparticles into a phanerochete chrysosporium liquid medium containing tween 80, then inoculating a phanerochete chrysosporium spore suspension, conducting shaking cultivation so as to obtain the immobilized biological adsorbent. The invention also discloses application of the adsorbent in dye wastewater treatment. The biological adsorbent of the invention has high adsorption efficiency and large adsorption capacity, and can be effectively used for treating neutral red and lead in dye wastewater. The preparation technology and treatment technology in the invention are characterized by simplicity and low cost.

The invention discloses a method for detecting various pesticide residues in tobacco by utilizing a multiwalled carbon nanotube. The method is characterized in that an organic solvent is used for extraction; the multiwalled carbon nanotube is used as a reverse solid phase dispersion adsorbent; the tobacco samples are purified through vortex and centrifugation; a high performance liquid chromatography-tandem mass spectrum coupled technology and a gas chromatography-tandem mass spectrum coupled technology are combined to realize the synchronous detection of various pesticide residues in the tobacco. According to the method, the multiwalled carbon nanotube is used as the reverse solid phase dispersion adsorbent, so that the purification effect, the influence on the adsorption of the target analyte due to the frequently-used polar adsorbents is eliminated while the matrix effects are reduced, and a cleaner solution is provided to decrease the maintenance of the instrument in the using process; the multiwalled carbon nanotube is low in preparation cost and less in dosage and has the effect of greatly reducing the experimental cost; the method provided by the invention has the advantages of being correct in measurement, high in sensitivity and good in repeatability, and has the effect of satisfying the requirement for rapidly analyzing and detecting the large batch samples.

This invention provides flame-generated fine silica particles having an average particle size of 0.05 to 1 μm, wherein a fractal structure parameter α1 at length scales ranging from 50 nm to 150 nm and a fractal structure parameter α2 at length scales ranging from 150 nm to 353 nm satisfy the following formulas (1) and (2): −0.0068S+2.548≦α1≦−0.0068S+3.748  (1) −0.0011S+1.158≦α2≦−0.0011S+2.058  (2) wherein S is a BET specific surface area (m2 / g) of the fine silica particles, in the measurement of small-angle X-ray scattering. When used as a filler for a semiconductor-encapsulation resin or when used as a filler for a polishing agent or for a coating layer for ink jet papers, the fine silica particles are available at high content without substantial enhancement of the viscosity. Besides, when used as a filler for the resin, the fine silica particles improve the strength of the molding compound. Furthermore, when used as a toner additive for electrophotography, the fine silica particles improve the free-flow property of the toner without removal from the toner surfaces.

The invention discloses a bifunctional catalyst containing a multi-stage pore EUO molecular sieve and a preparation method thereof. The catalyst comprises 10 to 90wt% of an H-type multi-stage pore structure EUO molecular sieve, 9.9 to 89.9wt% of a matrix and 0.01 to 2.0wt% of a metal active component. The preparation method comprises: mixing multi-stage pore EUO molecular sieve raw powder, the matrix and a pore-expanding agent, adding an acid solution into the mixture, carrying out mixing kneading shaping, carrying out drying and roasting to remove the pore-expanding agent so that a carrier isformed, and dipping the carrier in a mixed solution containing a metal salt for activation to obtain a shaped catalyst. The multi-stage pore EUO molecular sieve is synthesized by crystallization of along-chain silane compound as a crystallization aid and a double-quaternary ammonium salt as an organic template with a double six-membered heterocyclic group substituted alkane structure. The catalyst exhibits good activity and selectivity in the hydroisomerization reaction of a C8 aromatic hydrocarbon and has a good industrial application prospect and economic value.

The invention discloses a processing method for compact Sirofil elastic yarns. The method includes that an elastic-filament pre-drafting device and a thread guide mechanism are additionally mounted on a compact core spinning frame; the elastic-filament pre-drafting device guides filaments and elastic filaments to enter front rollers through drafting rollers; roves are unwound from a rove reel and enter a drafting area formed by rear rollers, middle rollers and the front rollers through a yarn separator to be drafted by certain multiples; drafted roves together with two combined filaments enter a compacting area with a negative-pressure air intake device; compacted yarns are twisted and wound onto a bobbin to produce the compact Sirofil elastic yarns. By the processing method for spinning multicomponent yarns, winding and coring effects are achieved, spinning process is shortened, spinning end breakage is reduced, working efficiency of workshops is improved, and finished yarns have few fluff, high strength and good quality.

The invention discloses a core-shell structure composite material and a preparation method thereof, and an application of the core-shell structure composite material in a lithium ion battery. In the core-shell structure composite material, the main composition of the core is a hard carbon material, the shell is a composite coating layer formed by compounding nano lithium titanate particles and a carbonized binder, and the nano lithium titanate particles are fixed by the carbonized binder and are dispersed on the surface of the core. The method comprises the following steps: 1) preparing a hardcarbon material as an inner core; 2) by using nano lithium titanate particles, a binder and an inner core as raw materials, fixing nano lithium titanate on the surface of the inner core under the curing action of the binder to obtain a product composed of the inner core and a composite coating layer precursor coating the surface of the inner core; and 3) pre-sintering, and then sintering to obtain the core-shell structure composite material. According to the invention, the core-shell structure composite material has the advantages of high compaction, high capacity, high initial charge-discharge efficiency and good cycling stability, and has a wide application prospect in the field of lithium ion batteries.

The invention discloses a porous hollow copper oxide nano fiber and a preparation method thereof. The method comprises the following steps: 1) dissolving a copper salt and a polymer into ethanol so as to obtain a spinning solution; 2) carrying out electrostatic spinning on the spinning solution obtained in the step 1), and then sintering after electrostatic spinning is finished, so as to obtain the porous hollow copper oxide nano fiber. Compared with the traditional template method and coaxial electrostatic spinning method, the method disclosed by the invention is simple and practicable, and low in cost, and the obtained material is novel in structure and has an important potential application in the fields of preparations of catalysts, gas sensors or semiconductors and the like.

A composite electrode material and a method for manufacturing the same, a composite electrode comprising the said composite electrode material and a method for manufacturing the same, and a lithium-based battery comprising the said composite electrode are disclosed. Specifically, a composite electrode material of the present invention comprises a core or a core with a surface covered by a buffer layer, preferably a conductive diamond film, wherein a material of the core is at least one selected from the group consisting of graphite, Sn, Sb, Si, and Ge; and a graphene nano-wall layer grown from the core or the conductive diamond film covering the core.

The invention is a recycled solidfree micro-foam drilling fluid or a completion fluid, which comprises the following components in parts by weight: 1. 2-3 parts of recycled solidfree micro-foam composite treatment agent SD-LNA; 2. 0.5-1 part of low-density solidfree tackifier SD-LNV; 3 0.5-1 part of low-density modifier SD-LFD; 4. 0.5-1 part of low-density foam stabilizer SD-LFS; 5. 0.5-1 of low-density flow type modifier SD-LFR; and 6. 100 parts of water. According to a normal preparation method, the above substances are added into water successively, mixed and stirred evenly under normal temperature and normal pressure. The invention has the advantages of low density, high viscosity, small low fluid loss, good lubricating property, strong landwaste suspension property, easy maintenance,fine cleaning capability of wells, fine inhibitory capability on clay and shale, no micro-foam convergence, recycled use and the like, can be widely applied in engineering such as petroleum, geologicdrilling and the like, is particularly applicable to construction technology of well drilling and well completion of low-pressure reservoir and exhausted reservoir.

The invention relates to a preparation method for a POSS / PDMAEMA organic / inorganic hybrid material according to a thiol-ene click chemistry method. The preparation method comprises the following steps: obtaining PDMAEMA through synthesis according to an RAFT polymerization method; taking dimethyl phenylphosphine as a catalyst, taking n-hexylamine as a reducer, and conducting a reduction reaction on a dithioester group at the tail end of PDMAEMA to generate sulfydryl; conducting thiol-Michael addition reactions on the double bonds of PDMAEMA containing sulfydryl and POSS containing ethenyl according to the thiol-ene click chemistry method to generate a POSS / PDMAEMA organic / inorganic hybrid material with a temperature / pH dual response. The preparation method has the advantages that the prepared POSS / PDMAEMA organic / inorganic hybrid material is small in size, stable in chemical bond, and uniform in particle diameter; due to a click reaction to PDMAEMA, the hydrophilic performance of POSS is effectively improved; in a water solution, the POSS / PDMAEMA organic / inorganic hybrid material is excellent in temperature sensibility and pH sensibility; due to a special structure and the stimulus response performance, the POSS / PDMAEMA organic / inorganic hybrid material is a new-generation environment-friendly new material product, and can be applied to drug carrying, targeted release, metal ion recovery, environmental pollutant adsorption and other fields.

The invention discloses a preparation method of a composite antistatic agent for a fiber fabric. The composite antistatic agent for the fiber fabric in the preparation method comprises the following components: a butanol phosphate ester antistatic agent, a terminal hydroxyl hyperbranched antistatic agent, a terminal carboxyl hyperbranched antistatic agent and a terminal quaternary ammonium salt hyperbranched antistatic agent; and the preparation method comprises the following steps: firstly, respectively preparing the butanol phosphate ester antistatic agent, the terminal hydroxyl hyperbranched antistatic agent, the terminal carboxyl hyperbranched antistatic agent and the terminal quaternary ammonium salt hyperbranched antistatic agent; and mixing the four antistatic agents to prepare the composite antistatic agent for the fiber fabric. The preparation method is simple and feasible; and the prepared antistatic agent has a good antistatic effect, good heat resistance and good acid and alkali resistance.

The invention discloses special activated carbon for adsorption separation of chlorine gas and oxygen. A product is prepared from activated carbon by the processes of dipping, drying and baking for decomposing in sequence. The special activated carbon has the physical properties that the bulk density is 0.40-0.45 kg / L, the strength is greater than or equal to 5.5N / mm, the specific surface is greater than or equal to 900m<2> / g, the pore volume is 0.9-1.0 ml / g, and the abrasion is smaller than or equal to 5%. By virtue of the special activated carbon, the related application performance such as the adsorption and separation efficiency and stability, the compression strength and the abrasion resistance quality uniformity of the chlorine gas and the oxygen are improved, and not only is the purity of the products, namely the chlorine gas and the oxygen, is improved, but also the safe and stable operation of an industrial device is facilitated.

The present invention discloses a selenium-doped nano-silica sol capable of both inhibiting the absorption and accumulation of heavy metal in rice and producing a selenium-rich rice, and a preparation method thereof. The selenium-doped nano-silica sol of the present invention is prepared mainly by using a nano-silica sol as a carrier, sodium selenite and the like as a raw material, vitamin C and the like as a reducing agent, and polyvinylpyrrolidone and the like as an emulsifier, and doping and dispersing selenium in a specific ratio in a silica sol so as to form a selenium-doped nano-silica sol with a special structure and function. The selenium-doped nano-silica sol prepared according to the invention has high stability and high concentration, and is uniform and transparent, and has a silica content of up to 20% or more, a selenium content of up to 1% or more, and low impurity content. The selenium-doped nano-silica sol of the present invention has a pH close to neutral, wherein selenium, in a nano particle form, is dispersed in colloidal silica, with a particle size of less than 50 nm; and after the foliar application, it can significantly promote the growth of crops, inhibit the absorption and accumulation of arsenic and cadmium in crops, and increase the selenium content in crops, and has no toxic and side effects on crops, and is safe to application.

The invention discloses a carbon fiber composite artificial bone and its preparation method. The artificial bone includes a carbon fiber composite spring-shaped skeleton or includes a carbon fiber composite spring-shaped skeleton and a carbon fiber composite pin piece; the carbon fiber composite pin piece is arranged at one end or two ends of an empty cavity of the spring-shaped skeleton in an inserted mode or arranged in an empty cavity of the carbon fiber composite spring-shaped skeleton. The preparation method uses carbon fibers as raw materials, a spring-shaped carbon fiber prefabricated body is prepared through the knitting technology, and through density increasing, high-temperature purification and preparation of a wear-resistant coating, the carbon fiber composite spring-shaped skeleton is then obtained; the carbon fiber composite spring-shaped skeleton is combined with the carbon fiber composite pin piece, and an artificial bone is obtained. The artificial bone has the advantages of being light, good in biocompatibility, good in mechanical property and the like, especially the artificial bone is high in elastic deformation and good in toughness, can achieve the partial function of the cartilage, bending and shaping, and the practicability is high.

The invention relates to a complicated spiro-aryl fluorine material and preparation and application methods thereof, which belong to the organic photoelectric material scientific field, in particular to the complicated spiro-aryl fluorine material and the preparation method thereof. And the material is applied to organic electronic fields of organic rectifier diode, organic luminescence display, organic laser, etc. With the structure as is shown on the right, the compound material I has the advantages of: (1) having specific electronic structure and photoelectric properties, such as narrow emission spectrum; (2) maintaining high thermal stability and glass transition temperature, etc. Materials of the kind have commercial application potential in stable dark blue materials.

Disclosed is a depolymerized glycosaminoglycan from Thelenota ananas (dTHG), weight average molecular weight of which is about 8000˜20000 Da, and monosaccharide components of which are acetylgalactosamine (GalNAc), glucuronic acid (GlcUA), fucose (Fuc) or their sulfates (expressed as —OSO3−), in which molar ratio of GalNAc:GlcUA:Fuc:—OSO3− is about 1:(1±0.3):(1±0.3):(3.5±0.5). Said dTHG is a potent endogenous inhibitor of factor X, which has good anticoagulant and antithrombotic activity, and can be used for the prevention and / or treatment of thrombotic diseases. Also provided is a method for preparing said dTHG, which comprises steps of 1) extracting and obtaining fucosylated glycosaminoglycan (THG) from the body wall of Thelenota ananas; 2) depolymerizing THG to obtain dTHG by method of peroxide depolymerization or method of peroxide depolymerization catalyzed by catalyst of the fourth period transition metal ions; 3) removing impurities with lower and / or higher molecular weight in dTHG.

The invention discloses a preparation method of a polyamide nanofiltration membrane containing sulfoacid betaine type colloid nanometer particles, and the preparation method comprises the following steps of: preparing colloid nanometer particles by adopting a soap-free emulsion polymerization method; adding to a water phase monomer solution used for synthesizing a polyamide membrane; preparing the polyamide nanofiltration membrane containing the sulfoacid betaine type colloid nanometer particles through an interfacial polymerization method. The polyamide nanofiltration membrane disclosed by the invention keeps high selectivity of the polyamide membrane on inorganic salt and greatly increases the water permeation flux of the polyamide membrane by utilizing the unique nanometer pore structure and good hydrophilicity of the sulfoacid betaine type colloid nanometer particles. Besides, the sulfoacid betaine type colloid nanometer particles have higher pollution resistance and show good stability pollution resistance in the long-term operating process of a filter membrane, thus the prepared polyamide nanofiltration membrane containing the sulfoacid betaine type colloid nanometer particles has high selectivity, permeability and pollution resistance. The preparation method of the polyamide nanofiltration membrane is simple, easy to operate and low in cost and achieves a good industrialized application prospect.

An arrangement structure of a shifting actuator of an internal combustion engine mounted on a motorcycle is provided in which while the shifting actuator is provided externally of an engine case of the engine so as not to interfere with auxiliaries, it is protected without external protrusion and external appearance is kept satisfactory. An external wall of an engine case is partially inwardly recessed to form a recessed portion capable of accommodating a shifting actuator. An actuator body of the shifting actuator is disposed in the recessed portion. An attachment bracket attached to an end portion of the actuator body is fitted to a first fitting hole of an engine case outer lateral wall on the side of the recessed portion and is secured to the engine case outer wall. The motorcycle has a multistage transmission that can reduce its axial width to achieve compactness.

The invention discloses a preparation method for a lithium titanate lithium ion battery. A cathode active substance in a cathode diaphragm of the battery is lithium titanate. During liquid injection, an electrolyte containing ionic liquid and a functional additive is injected for the first time, primary pre-charging and activation are carried out, a commercial lithium ion battery electrolyte is injected for the second time, then secondary activation is carried out, and high temperature charge-discharge cycles and air extracting sealing are carried out so as to obtain the lithium ion battery. According to the invention, activation is carried out twice, the objective of secondary activation is to further reinforce the properties of a solid electrolyte interphase (SEI) film formed at the first time, so formation of a stable and compact SEI film on the surface of a cathode is facilitated, generation of gas in the processes of charging and discharging of the lithium titanate lithium ion battery can be effectively inhibited, and the cycle life and rapid charging and discharging performance of the battery are improved.

The invention discloses a manganese oxide / nickel micro-sphere with a porous structure, and a preparation method and application thereof. The preparation method comprises the steps of adopting manganese acetate and nickel acetate as a manganese source and a nickel source, adopting urea as a precipitator, adopting water and ethylene glycol as solvents, firstly adopting a hydrothermal method for synthesizing a carbonate precursor of manganese and nickel, and then calcining under an argon atmosphere to obtain the manganese oxide / nickel micro-sphere with the porous structure. Manganese and nickel elements in the micro-sphere are distributed uniformly, the sphere is formed by self-assembly of nanoparticles, meanwhile, a lot of staggered nanosheets exist on the surface of the sphere, each nanosheet is formed by overlapping two layers of thinner nanosheets, a gap exists between the layers, and the specific surface area is larger. The porous structure assembled by secondary particles is not only beneficial for full contact of an electrolyte and an active substance, but also effectively adapt to volume expansion of a material in a charging and discharging process, so that the electrochemical performance of the manganese oxide / nickel micro-sphere when being used as a lithium ion battery cathode material is greatly improved. The preparation method provided by the invention is easy and convenient to operate, controllable in reaction conditions, and easy for scale-up experiment.

The invention relates to a top-bottom asymmetrical tert-butyl spirobifluorene compound. The compound of the invention has a structural formula as represented by (I), and in the structural formula, R1 can be any one of various electron-withdrawing groups and electron-donating groups, such as a variety of alkyl groups, substituted aryl groups, substituted heterocyclic radicals, substituted alkylene groups, substituted amino groups, chlorine, bromine and iodine, except tert-butyl groups. According to the invention, cheap and easily available 4,4'-di-tert-butyl-biphenyl is used a raw material and reacts with 2,7-biX-fluorenone (wherein X represents substituents) through bromination, X substituents on a fluorene ring are converted into a variety of functional groups, and other steps are also carried out so as to obtain the compound (I). The top-bottom asymmetrical tert-butyl spirobifluorene compound in the invention has the characteristics of low cost, a simple synthesis route, high yield, easiness in industrial production, a special spiro-conjugation effect, good dissolvability, high thermal stability and a wide applicability in the fields of organic light-emitting displays, organic non-linear materials, fluorescent probes and the like.

The invention discloses a preparation method for algae endophytic fungi exocellular polysaccharide, and relates to a biological method for synthesizing polysaccharide. According to the preparation method, purified polysaccharide is separated from blue algae endophytic fungi DT06 serving as production strains through shaking table or liquid-state submerged cultivation fermentation, wherein the blue algae endophytic fungi DT06 are used as the production strains; the strains are collected at December 20, 2010 with a collection number of CGMCC 4460; and the preparation method specifically comprises the following steps of: 1, performing liquid fermentation by using the blue algae endophytic fungi DT06; 2, performing exocellular polysaccharide separation; and 3, purifying the polysaccharide to finally prepare the pure fungi exocellular polysaccharide product which is shown as the following structural formula. The endophytic fungi DT06 used in the method are separated from the blue algae; and the defects of narrow raw material source, low probability of separation and high production cost existing in the prior art are overcome.

The present invention provides a preparation method of double electrochemistry working electrode structure with shielding crust. Epoxy on outside is used as substrate based on the inner layer as preparation working electrode, and carbon nano-tube is used as conductive filler to process a choiceness Hertzian waves shielding layer. The said working electrode has special structure, dielectric property and strong electromagnetic shielding effectiveness, at the same time, has merits of light quality, adjustable conductivity, strong high temperature oxidation resistance and good stability. In addition, the said working electrode is a working electrode with electromagnetic shielding technique, which is convenient for operation of electrochemistry test and is a promising electromagnetic shielding technique, and has widely use value and application prospect in electrochemistry field.

A roaster comprises a main container equipped with the space in the inner portion; an upper supporter including a flame hole equipped at the side facing the bottom side of the main container, and a roasting plate supporting part equipped at the circumference position of the flame hole, and is combined to the main container; a fuel vessel which has a fuel filling part is formed in the inner space and a spacer equipped in the outer periphery position of the fuel filling part, and which is positioned in the main container to be positioned at the opposite direction to the flame hole of the upper supporter and which is arranged as the state separated from the spacer.

The invention discloses a blueberry fish oil capsule, belonging to the field of foods. The blueberry fish oil capsule is health complementary food, each 500mg of products comprises seven ingredients including blueberry extractive, grape seed extractive, marigold extractive, eyebright extractive, soya bean lecithin, wheat-germ oil and fish oil Omega unsaturated fatty acid. The invention is not harmful for the health of human body, and is a health product for the health of eyes.