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89results about How to "Overcoming Dispersion" patented technology

Nano modified water-base multifunctional sound-absorbing paint and preparation method thereof

InactiveCN103980771ABasic mechanicsBasic sound-absorbing functionCoatingsWater basedThermal insulation
The invention discloses a nano modified water-base multifunctional sound-absorbing paint and a preparation method thereof. The paint is composed of the following components in parts by weight: 28-38 parts of emulsion, 2-10 parts of pigment, 30-45 parts of filler, 15-25 parts of water, 4-8 parts of flame retardant and 2.25-5.43 parts of assistant. By optimizing the paint system structure, the polymer and filler are selected, modified and proportioned to ensure the basic mechanical properties and sound-absorbing function, and the paint has high-value service properties, such as thermal insulation, moisture resistance, fire resistance, aging resistance, fouling resistance, sterilization, air purification and the like, and is especially suitable for rooms and other occasions with higher environmental requirements.
Owner:南京创宁空间新材料科技有限公司

Manufacturing method of inorganic particle filled polyimide film

The invention discloses a manufacturing method of an inorganic particle filled polyimide film, in particular to a manufacturing method of an inorganic particle filled polyimide film which adopts a small-sized grinding ball as a grinding medium and also adopts a grinding machine to uniformly and stably disperse inorganic particles into an organic solvent, thereby improving the transparency and mechanical properties of the film. The manufacturing method comprises the following steps: adding a grinding ball with the diameter no more than 6mm into the grinding bucket of a grinding machine with a moving medium, and adding and grinding part of organic solvent, inorganic particles and surfactant until the inorganic particles are uniformly dispersed in the organic solvent, thereby obtaining inorganic particle / organic solvent suspension; adding the inorganic particle / organic solvent suspension, the remaining organic solvent and diamine and dianhydride with identical molar numbers into a reactor, and preparing inorganic particle / polyamic acid solution suspensoid in a conventional method; and preparing the inorganic particle filled polyimide film with the inorganic particle / polyamic acid solution suspensoid according to the production process of the conventional flow casting method. The film has the advantages of good transparency and excellent mechanical properties.
Owner:天津恒通时代电工材料科技有限公司 +1

Method for preparing graphene/metal composite material and three-dimensional graphene

The invention belongs to the preparation field of graphene and a composite material of the graphene, and particularly discloses a method for preparing a graphene / metal composite material and three-dimensional graphene. The method for preparing the graphene / metal composite material includes the following steps that a chemical vapor deposition method is adopted for growing the graphene on the surfaces of metal particles; and the metal particles with the graphene being grown on the surfaces are molded to be of a three-dimensional entity structure, and accordingly the graphene / metal composite material is prepared. The method for preparing the three-dimensional graphene includes the specific steps that metal components in the prepared graphene / metal composite material are removed through corrosion with corrosive liquid, and accordingly the three-dimensional graphene can be prepared. By adoption of the method, a graphene / metal composite material product and a three-dimensional graphene material with excellent performance can be prepared; and the method has the advantages of being easy and convenient to operate, short in preparation period, wide in applied range and the like.
Owner:HUAZHONG UNIV OF SCI & TECH

Method for separating zinc and indium and iron from indium-enriched high-iron high-zinc calcine through reduction-magnetic separation

The invention relates to a method for separating zinc and indium and iron from indium-enriched high-iron high-zinc calcine through reduction-magnetic separation, belonging to the technical field of mineral processing. The invention is characterized in that the method adopts the technical means that mineral dressing is combined with smelting and performs smelting firstly and mineral dressing secondly; and the method is as follows: the waste heat of the indium-enriched high-iron zinc calcine obtained through fluidized roasting is utilized, the indium-enriched high-iron zinc calcine is introduced to perform low-temperature weak reduction treatment at below 570 DEG C and ensure that zinc ferrite is decomposed and reduced to ZnO, Fe3O4 and iron, the reduced calcine is levigated to prepare slurry, and zinc and indium and iron is separated through wet-type magnetic separation to obtain iron ore concentrates and indium-enriched zinc- enriched ore concentrates. The method has low energy consumption and low dosage of a reducing agent, is simple in operation, easy in control and high in metal recovery rate. Therefore, the indium embedded and distributed in zinc ferrite can be released, the loss caused by the high temperature volatilization of indium can be avoided, and the zinc and indium and iron of the indium-enriched high-iron high-zinc calcine can be separated in an ore dressing manner before leaching.
Owner:KUNMING UNIV OF SCI & TECH

Position loop control-based electric steering engine system

The invention relates to an electric steering engine system, and particularly discloses a position loop control-based electric steering engine system, which is implemented in a way of combining hardware and software. A DC / DC (direct current / direct current) power supply with isolated output is adopted for a power circuit in a hardware design, and missile power is transformed to be supplied to each unit circuit; TMS320F2812 is adopted as a master control unit of a control circuit, and is used for acquiring a rudder control signal and a rudder deflection angle feedback signal, integrating and amplifying errors of the rudder control signal and the rudder deflection angle feedback signal, calculating an actually output PWM (pulse width modulation) signal by using a fuzzy PID (proportion integration differentiation) algorithm, and providing the PWM signal for a driving circuit; the driving circuit is used for performing power amplification on the signal, and driving a steering engine execution mechanism to rotate, thereby realizing closed-position loop control on the electric steering engine system.
Owner:陕西航天导航设备有限公司

Radiotherapy network information management system

The invention discloses a radiotherapy network information management system comprising a communication network, an application server, a database serer, a work station and a TPS, wherein the application server, the database server and the work station are connected through the communication network; the application server and the TPS are connected; the work station is connected with a control table or equipment corresponding to the work station. The radiotherapy network information management system has the advantages that each equipment, the servers and the work station are connected through the communication network, network resources of departments are integrated and reconstructed, each equipment, the network and a software system are managed uniformly, radiotherapy data are comprehensively analyzed, uniformly stored and managed, and treatment amount and working efficiency of the radiotherapy departments are improved.
Owner:SHENZHEN YINO INTELLIGENCE TECH

Ultra-fine, highly dispersed Pd/C catalyst for direct aminic acid fuel battery and method for making same

InactiveCN1921197AOvercoming the larger average particle sizeOvercoming dispersionCatalyst carriersCell electrodesPotassium fluorideHydrazine compound
The invention relates to an ultra-fine high-disperse Pd / C catalyst of formic acid fuel battery. Wherein, it comprises that Pd metal particles are loaded on the carbon carrier while its mass is 1-80% of carbon carrier and its diameter is 3.0nm; and the preparation comprise that adding complexing agent, stabilizer, PdC12 dilute solution and active carbon carrier into water to be vibrated via ultrasonic wave to obtain component A; adding over reducer and vibrating with ultrasonic wave, and the reduced Pd particles are adhered on the carbon carrier, to obtain component B; washing component B, under vacuum or inertia gas, drying it; the complexing agent is ammonium fluoride, sodium fluoride, or potassium fluoride; the stabilizer is selected from boracic acid or borax; and the reducer is NaBH4, KBH4, hydrazine hydrate, and cavaform. The invention has high electric catalyst activity on aminic acid.
Owner:NANJING NORMAL UNIVERSITY

Composite transparent fluorescent ceramic chip and preparing method for white LEDs

The invention provides a composite transparent fluorescent ceramic chip and preparing method for white LEDs, the composite transparent fluorescent ceramic chip is the integral structure of two or more small ceramic units connected in the cross section, the small ceramic unit is a light pixel, the light color of the each lighting pixel is more than two, after being excited by the LED chip, the composite transparent fluorescent ceramic chip emits white light. Compared with the existing technology, the different lighting pixel points are compound on the same ceramic chip according to the principle that the three base colors of red light, blue light and green light are mixed into white light, the problem of uneven dispersion of phosphor particles in organic materials, the scattering of surface light and the loss of red components, and the like are overcome, the technical scheme has the advantages of high conversation efficiency, high color index, long life, good heat stability and adjustable color temperature.
Owner:NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI

Base band digital signal encoding modulation integrated system

The invention provides a base band digital signal encoding modulation integrated system comprising a cascade encoding module, a PCM / PSK / PM modulation module and a BPSK / NRZ modulation module. The system is characterized by further comprising a control subsystem used for controlling encoding modulation modes of the cascade encoding module, the PCM / PSK / PM modulation module and the BPSK / NRZ modulation module, wherein the subsystem further comprises an interface module, a first multiplexer, an SRRC-OQPSK modulation module, a data distributor, a multiplexer and a control logic module. The first multiplexer is used for selecting data in one path from two path data output from the interface module and outputting the data to a post-stage circuit which is the cascade coding module. The system is used for completing reed-solomon (RS) coding interface data selection of base band data and coding framing, and can correspondingly select different modulation mode functions according to different transmission code rates including a low transmission code rate, a medium transmission code rate and a high transmission code rate. The system correspondingly selects PCM / PSK / PM.BPSK / NRZ and RC-OQPSK modulation modes according to a downlink low data code rate, a downlink medium data code rate and a downlink high data code rate after achieving base band signal encoding.
Owner:NAT SPACE SCI CENT CAS

Preparation method for tough epoxy acid anhydride impregnating varnish and impregnating varnish

The invention discloses a preparation method for touch epoxy acid anhydride impregnating varnish and impregnating varnish. The method comprises the following steps of: putting 100 parts by weight of epoxy resin into a reaction kettle; heating to 60 DEG C; adding 70-90 parts by weight of acid anhydride, and stirring at the rotating speed of 100-200 revolutions per minute for 30 minutes; adding 1-50 parts by weight of cage-shaped polyhedral oligomeric silsesquioxane (POSS); and continually stirring at the room temperature at the rotating speed of 100-200 revolutions per minute for 1 hour to form the epoxy acid anhydride impregnating varnish. The adopted cage-shaped POSS is cage-shaped POSS containing an active group or an inertial group capable of participating in an epoxy resin reaction, and the general formula can be shown as RXRY(SiO1.5)n, wherein n=8; x+y=8; and R can be one of an active aliphatic epoxy group, an aliphatic epoxy group, amino and hydrogen atom or one of inertial groups selected from phenyl, cyclopentyl, chloropropyl and p-nitrobenzene, and has superior comprehensive performance. Particularly, the toughness is improved remarkably, and the toughness of a material is improved by 10-200 percent.
Owner:ZHUZHOU TIMES ELECTRIC INSULATION

Waste polypropylene modified thin-walled corrugated tube and manufacture method thereof

The invention relates to a waste polypropylene modified thin-walled corrugated tube. The waste polypropylene modified thin-walled corrugated tube is made from the following ingredients in parts by weight: 97-99.9 parts of modified polypropylene and 0.1-3 parts of oxidation inhibitor; and the modified polypropylene is made by mixing waste polypropylene with a modification additive, and the modified polypropylene is made from the following ingredients in parts by weight: 73-81 parts of waste polypropylene, 3-6 parts of peroxide master batch, 15-20 parts of micromolecular monomer master batch and 0.3-0.6 part of stearate. The thin-walled corrugated tube is made through carrying out melt extrusion on the waste polypropylene by a plastic extruder after the melt strength of the waste polypropylene is improved by modification, and a manufacture method of the waste polypropylene modified thin-walled corrugated tube comprises the steps of manufacturing activated inorganic powder, manufacturing the peroxide master batch, manufacturing the micromolecular monomer master batch, manufacturing the modified polypropylene, manufacturing the thin-walled corrugated tube, and the like. The waste polypropylene modified thin-walled corrugated tube is good in forming and high in melt strength; and the manufacture method of the waste polypropylene modified thin-walled corrugated tube is simple in technological process, low in production cost and free in environmental pollution.
Owner:柳州市瑞和塑料科技有限责任公司

Hyaluronic acid-hydroxyapatite nano composite sphere and preparation method

InactiveCN101559241ABiologicallyWith targeted featuresGenetic material ingredientsPharmaceutical non-active ingredientsApatitePhosphate
The invention relates to a hyaluronic acid-hydroxyapatite nano composite sphere. The nano composite sphere comprises 93 to 98.7 mass percent of hydroxyapatite and 1.3 to 7.0 mass percent of hyaluronicacid, and has a spherical shape and the grain size of 20 to 200 nm. A preparation method for the hyaluronic acid-hydroxyapatite nano composite sphere comprises the following process steps: (1) preparation of a hyaluronic acid saccharoid solution; (2) reaction and synthesis: adding an aqueous solution of calcium salt and an aqueous solution of phosphate into the hyaluronic acid saccharoid solutionprepared in step (1) with agitating, then regulating the pH value of a reaction system to make the pH value stabilize from 9 to 11, and carrying out the aging for at least 48 hours at the room temperature and normal pressure; and (3) product collection and drying. The nano composite sphere has the unique targeting characteristics (CD44 receptor) in vivo, and has good application prospect in the field of medicine and gene targeting transportation.
Owner:SICHUAN UNIV

High-stability environment-friendly carbon nanotube water dispersing liquid and preparation method thereof

The invention discloses a high-stability environment-friendly carbon nanotube water dispersing liquid and a preparation method thereof. The method comprises the steps: according to the mass parts, mixing 1-5 parts of carbon nanotubes, 0.5-20 parts of lignosulfonate and 0.1-5 parts of deionized water; and carrying out grinding treatment, adding water to dilute, adjusting the pH to 6-8, adding a stabilizer, and carrying out ultrasonic dispersion to obtain the stably dispersed carbon nanotube water dispersing liquid. The stabilizer is one or more of triton X-100, sodium dodecyl sulfate, sodium dodecyl benzene sulfonate, dodecyl sulfobetain and sodium methyl palmitate sulfonate. The high-stability environment-friendly carbon nanotube water dispersing liquid has the advantages of good dispersion effect of carbon nanotubes, high stability, high concentration, short technological process and preparation period, environmental friendliness and good compatibility with water-based resin.
Owner:SOUTH CHINA UNIV OF TECH

Wind electricity connection system model based on measured data

ActiveCN103441527AResolving output power differencesSlow down power fluctuationsSingle network parallel feeding arrangementsMachines/enginesEngineeringAtmospheric sciences
The invention discloses a wind electricity connection system model based on measured data. The establishment of the model mainly comprises the following steps that operating data, within a preset period, of each wind turbine of a wind electricity plant to be measured are selected; based on the obtained operating data, within the preset period, of each wind turbine of the wind electricity plant, a sampling point wind speed matrix and a sampling point active power matrix are established; based on the obtained sampling point wind speed matrix and the obtained sampling point active power matrix, calculation is conducted, and a wind speed model of the wind electricity plant to be measured is obtained. The wind electricity connection system model based on the measured data can overcome the defects that in the prior art, the problems of dispersion of the wind electricity plant cannot be solved, and the output power error is large and has the advantages of being capable of solving the problem of dispersion of the wind electricity plant and small in output power error.
Owner:STATE GRID CORP OF CHINA +2

O-alkyl-S-hydroxyalkyl-xanthate collecting agent, and preparation and application thereof

The invention belongs to the technical field of ore floatation, in particularly discloses an O-alkyl-S-hydroxyalkyl-xanthate collecting agent. An esterification reaction is carried out with water as solvent, and with alkyl group or alkyl sulphanyl xanthogenate and halogenated alkyl alcohol as raw materials for preparation to obtain O-alkyl-S-hydroxyalkyl-xanthate. A preparation method of the O-alkyl-S-hydroxyalkyl-xanthate is easy to operate and good in reaction effect. The floatation collecting agent has the extremely high chelation capacity of the xanthogenate, and the foaming performance ofhydroxyl, and the action of the collecting agent on metal ions on the surfaces of ore can be well improved. The prepared collecting agent has high capture capacity and selectivity on sulphide ore such as copper sulphide ore, copper molybdenum ore and lead zinc ore, and shows good floatation indexes.
Owner:CENT SOUTH UNIV

Method for preparing three-dimensional manometer load-type catalyst

The invention relates to a method for preparing a three-dimensional manometer load-type catalyst, comprising the following steps of: (1) covering solution with nanosphere on a substrate evenly and drying; (2) using the nanosphere as a mask plate and adopting dry etching or wet corrosion based on different etching or corroding rate with the substrate; and (3) depositing a catalyst material. The method has simple process, low cost and is easy to be promoted and used. The scale of the catalyst carrier in the three-dimensional direction is within the nanometer magnitude and the body of the carrier has larger specific surface area so that the catalyst acts on large areas, and the catalyst materials are highly dispersed, easily recycled and can be reused.
Owner:DONGHUA UNIV

Silicate ester modified polyamide reverse osmosis composite membrane and preparation method thereof

The invention provides a method for modifying a polyamide reverse osmosis composite membrane by the use of silicate ester. The preparation method comprises the following steps: firstly pouring an aqueous phase solution containing an aromatic polyamine compound onto the surface of a polysulfone ultrafilter membrane support layer; draining and then immersing the membrane surface with an organic liquid phase containing a proper amount of aromatic acyl chloride to contact with a water phase, wherein the organic phase or the water phase contains a proper amount of silicate ester; carrying out interfacial polymerization with the assistance of silicate ester so as to obtain a polyamide active layer; and carrying out heat treatment so as to obtain a modified polyamide reverse osmosis composite membrane. On one hand, the silicate ester is used as a cosolvent during the interfacial polymerization process so as to adjust the membrane structure; on the other hand, the silicate ester is used as a silicon source and undergoes hydrolytic polymerization during the interfacial polymerization and post-processing to generate silica nanoparticles which are doped in a polyamide separating layer. The silicate ester-assisted interfacial polymerization method combines advantages of cosolvent and inorganic nanoparticles. Through silicate ester-assisted interfacial polymerization, the reverse osmosis composite membrane with high water flux and high salt rejection is prepared.
Owner:OCEAN UNIV OF CHINA

Colorized GRC product prepared from multi-grading waste glass and preparation method thereof

The invention discloses a colorized GRC product prepared from multi-grading waste glass and a preparation method thereof. The colorized GRC product comprises waste glass composite colorized decorative surface layer and a waste glass composite structural layer. The preparation method comprises the following steps: recycled waste glass is classified according to color, levigated and added to a GRC surface layer so as to prepare the decorative surface layers with specified colors; at the same time, the waste glass with various colors are prepared into fine aggregate and coarse aggregate according to grading so as to prepare the structural layer. According to the invention, the waste glass is adopted to replace aggregate, so that the waste is efficiently utilized, the colorized glass is used as different color tone to replace pigments and to be added to the GRC product, the defects that the pigments are not uniformly distributed and the pollution is serious in the later period are overcome, the artistry of GRC decoration is improved, and various properties of fiber reinforced cement can be improved. The technology is simple, higher economical and environmental benefits are obtained, and high value-added resource utilization is realized.
Owner:江苏倍立达新材料科技有限公司

Granisetron hydrochloride orally disintegrating tablets

The invention relates to granisetron hydrochloride mouth slaking tablet and the formula and preparing process. The process employs rotary oscillating granulator to produce said slaking agent through direct sheeting method after heat extrusion by melting and gradient cooling. When compared with mouth slaking agent produced with normal melting method, the mouth slaking agent in this invention is characterized by faster slaking speed, higher dissolution rate, intact tablet outlook, stronger rigidity and good taste. If compared with current freeze drying, vacuum drying, spray drying technique, the invention is characterized in that it needs no special production device and condition, no special package, the production process is simple, quality is stable and suitable for industrial production. It provides new products for patients that is dysphagia and bedridden, for old people and children, especially for patients suffering tumor chemotherapy and radiotheraphy.
Owner:HONGYI SCI & TECH CO LTD NANCHANG

A sealed type molten salt distillation method and a distillation device

A sealed type molten salt distillation method and a distillation device are disclosed. The method is implemented through the distillation device. The distillation device includes a distillation kettle. A sealed cavity is formed in the distillation kettle. The left side end of the sealed cavity is an evaporation zone, and the top and bottom of the right side end of the sealed cavity are a condensing zone and a collecting zone respectively. The vapour pressure of molten salt increases along with the increase of temperature, a large vapour pressure gradient can be formed through heating and cooling different parts of the vacuum distillation kettle under a sealed condition so as to drive molten salt distillation. Disadvantages of the prior art that recovery rates are low and products are scattered are overcome. Pollution and corrosion of a vacuum system by the molten slat are effectively avoided. The product recovery rate is increased.
Owner:SHANGHAI INST OF APPLIED PHYSICS - CHINESE ACAD OF SCI

Efficient intrinsic flame-retardant polycarbonate and preparation method thereof

The invention relates to the field of functional polymer materials, in particular to efficient intrinsic flame-retardant polycarbonate and a preparation method thereof. The structural formula is shown as the specification, wherein a is equal to 10 to 2000, b is equal to 1 to 100, and c is equal to 1 to 100. The bisphenol A / bisphenol S / siloxane copolycarbonate is prepared by adopting a triphosgene polymerization method, wherein the arylsulfonate radicals in the bisphenol S structure have an efficient flame-retardant effect, and meanwhile, a silicon flame-retardant structure in the siloxane structure and the arylsulfonate radicals have a synergistic flame-retardant effect, so that the flame-retardant property of the polycarbonate is further improved.
Owner:SICHUAN UNIV

Cable insulation state evaluation method based on neural network integration

InactiveCN110308375AAvoid the problem that interference cannot fully reflect the cable insulation stateImprove accuracyTesting dielectric strengthNeural architecturesObservational errorNerve network
The invention discloses a cable insulation state evaluation method based on neural network integration. The method comprises: step one, carrying out fusion of different cable insulation state evaluation reference features and constructing a neural network cable insulation state evaluation model based on bagging; and step two, measuring feature parameters of a to-be-evaluated cable, inputting the measured parameters into the cable insulation state evaluation model to obtain a cable insulation state level, thereby completing evaluation of the cable insulation state. According to the invention, on the basis of the mechanical and electrical properties of the cable, different cable insulation state evaluation reference features are selected and full fusion is performed; an accurate cable insulation state evaluation method is established; and a problem of high dispersion and large measuring error of the measuring index due to the single selected evaluation reference feature in the prior artis solved.
Owner:国网陕西省电力公司西安供电公司 +1

Austenitic stainless steel pipeline nonlinear fatigue damage life evaluation processing method

The invention discloses an austenitic stainless steel pipeline nonlinear fatigue damage life evaluation processing method. The method comprises the following steps: S1, defining of a fatigue damage model of a to-be-evaluated pipeline material, S2, fatigue damage correlation analysis: obtaining the life corresponding to the stress of each loading step from the SN curve of the pipeline material, determining the damage Di of the loading step sigma i according to the fatigue damage model in the step S1, and determining the equivalent operation times n (i+1), eff, the total cycle times of the loading step i+1 and the fatigue damage of the corresponding loading step i+1 under the stress sigma i+1 loading condition, S3, calculation of fatigue damage correlation analysis under different load stepsto obtain equivalent operation times, accumulation and calculation of fatigue damage until the damage is equal to 1, and statistical calculation of fatigue life. The invention provides a nonlinear damage model, provides a stress fatigue life prediction method under different load step loading conditions, and provides technical support for accurate evaluation of the fatigue life of a pipeline material.
Owner:LINGAO NUCLEAR POWER +3

Plastic dehumidifying staining master batch and preparation method thereof

InactiveCN101186731AOvercome the large amount of additionOvercoming dispersionLinear low-density polyethylenePolymer science
The invention discloses a plastic dehumidifying coloring mother particle, which is characterized in that the dehumidifying coloring mother particle comprises one or a plurality of calcium oxide, magnesium oxide and tin oxide 11-60 parts by weight, one or a plurality of biphenyl aniline yellow, permanent yellow, indigo, pigment yellow, permanent orange, orange chrome yellow, pigment scarlet, golden light red, scarlet powder, jade lime and carbon black (pigment black) 5-45 parts by weight, one or a plurality of stearate adjuvant, paraffin, coupler, polyethylene wax, brightening agent and brightening agent 8-65 parts by weight, one or a plurality of high-density polyvinyl resin, linear low-density polyvinyl resin, polyacryl resin, ethylene-vinyl acetate copolymer 15-75 parts by weight.
Owner:李守本

Method for gradient and length-diameter ratio CNTs reinforced copper-based composite materials of laser-induction composite melting deposition

The invention discloses a method for gradient and length-diameter ratio CNTs reinforced copper-based composite materials of laser-induction composite melting deposition. The method for the gradient and length-diameter ratio CNTs reinforced copper-based composite materials of the laser-induction composite melting deposition is characterized by comprising a first step of adopting a method of rotating electrophoresis to carry out screening on carbon nano tubes, a second step of respectively and evenly mixing the screened and obtained carbon nano tubes with copper alloy powder on a ball grinding mill according to a length-diameter ratio in a gradient-increase mode, and a third step of adopting the method of laser-induction composite melting deposition to prepare the CNTs reinforced copper matrix composite materials of the length-diameter ratio. The method for the gradient and length-diameter ratio CNTs reinforced copper-based composite materials of the laser-induction composite melting deposition has the advantages that the carbon nano tubes are screened and obtained through a method of rotating the electrophoresis, chemical nickel plating processing is carried out on copper matrix composite powder distributed of the CNTs in a disperse mode, high temperature oxygen of the copper matrix composite powder and wetting performance of the CNTs and a copper alloy are improved, gradient distribution of the CNTs which are different in length-diameter ratio in the copper matrix composite materials is achieved, valuable materials are notably saved, manufacturing cost is reduced, and a manufacturing cycle is shortened.
Owner:NANCHANG HANGKONG UNIVERSITY

Anti-flaming phase-change energy storage, heat preservation and heat insulation material and preparation method thereof

The invention discloses an anti-flaming phase-change energy storage, heat preservation and heat insulation material and a preparation method thereof. The anti-flaming phase-change energy storage, heat preservation and heat insulation material is prepared from the following components: modified polyether polyol, polymethylene polyphenyl isocyanate, diethanol amine, triethylene diamine, stannous octoate, silicone oil, normal hexane, water, ammonium polyphosphate and melamine, wherein the modified polyether polyol is prepared by grafting a phase-change energy storage substance-polyethylene glycol to the polyether polyol by adopting phosphorus oxychloride as a coupling agent, and the phase-change energy storage substance can be completely reacted to the polyether polyol through a bonding mode. The anti-flaming phase-change energy storage, heat preservation and heat insulation material prepared by the invention not only has heat preservation and heat insulation properties, but also has flame resistance, great support is provided for heat preservation and heat insulation security of an outer wall of a building, and an important significance in promoting advancement and development of a fireproof technology of energy-saving engineering in China is obtained.
Owner:SOUTHWEST JIAOTONG UNIV

Preparation method of antistatic copolyester

A preparation method of antistatic copolyester comprises the following steps: mixing and grinding fluoride modified lithium manganate, lithium iron phosphate nano-powder, sodium germinate, sodium-based bentonite, ethylene glycol, p-hydroxybenzoic acid and butylene glycol to prepare modified ethylene glycol I; mixing and grinding silane coupling agent modified tin oxide whiskers, conductive potassium titanate whiskers, polyethylene glycol, sodium 5-sulfobis(hydroxyethyl)isophthalate, antimony ethylene glycalate, an antioxidant and ethylene glycol to prepare modified ethylene glycol II; blending and beating the modified ethylene glycol I, ethylene glycol and terephthalic acid, carrying out an esterification reaction, adding the modified ethylene glycol II in the normal pressure esterification-condensation polymerization stage, and further carrying out condensation polymerization to prepare the antistatic copolyester. The modified polyester can obviously improve the antistatic property, the hygroscopic property and other performances of a polyester material, enhances the mechanical performances of the polyester material, and can be widely applied to production of polyester fibers, plastics and films.
Owner:杭州创盛纺织科技有限公司

Aqueous nano polyaniline-epoxy acrylic resin conductive anticorrosion primer base

InactiveCN107286777AOvercoming dispersionOvercoming the problem that nanoparticles are easy to agglomerateAnti-corrosive paintsElectrically-conductive paintsEpoxyEmulsion
The invention relates to an aqueous nano polyaniline-epoxy acrylic resin conductive anticorrosion primer base, which is prepared by mixing and stirring a nano polyaniline-epoxy acrylic resin mixture, aqueous acrylic acid anticorrosion emulsion, pigment-filler, and auxiliary agents. An in-situ emulsion polymerization method is adopted to make aniline carry out polymerization in epoxy acrylic resin to form resin wrapped nano polyaniline particles, which are evenly dispersed in resin, and then the particles are mixed with aqueous acrylic acid anticorrosion emulsion and pigment-filler to prepare the primer base. The anticorrosion primer base is enable to have an aqueous property, an in-situ emulsion polymerization technology and a nano technology are well combined, nano polyaniline particles are well dispersed in paint, the coating has a good conductive property and anticorrosion performance therefore, on the other hand, the oil-water layering is avoided because no solvent is added, and thus the primer base can be well stored.
Owner:HUBEI QILI NEW MATERIAL CO LTD

Preparation method, application and detection method of molecular imprinting nanofiber reinforced basement membrane

The invention discloses a preparation method, an application and a detection method of a molecular imprinting nanofiber reinforced basement membrane. The preparation method comprises the steps of: (1)weighing a functional polymer, dissolving the functional polymer in an organic solvent, adding template molecules into the solutino, stirring and mixing the mixture, adding a nano metal particle precursor into the mixture, and performing ultrasonic dispersion on the mixture to obtain a metal-molecular imprinting nanofiber electrostatic spinning liquid; (2) subjecting the prepared electrostatic spinning liquid to electrostatic spinning to obtain a nanofiber membrane; (3) putting the nanofiber membrane obtained in the step (2) into a reducing agent for reduction; (4) and eluting the template molecules in the reduced nanofiber membrane to obtain the molecular imprinting nanofiber reinforced basement membrane. The preparation method applies the molecular imprinting technique and the nanofibermaterial to the surface-enhanced Raman spectroscopy, realizes the specific identification of the basement membrane and improves the adsorption capacity of the basement membrane, thereby improving thedetection sensitivity.
Owner:SOUTHEAST UNIV
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