81results about How to "Good dispersion properties" patented technology

The invention discloses an aluminium nitride ceramic material and a preparation method thereof. The method is to add nano-alumina to raw materials in the prior preparation method for preparation according to the prior preparation process. In-situ growing nano-alumina can be obtained directly through adding the nano-alumina, or indirectly through adding organic aluminum, such as aluminium secondary butylate, aluminium isopropoxide or aluminium acetylacetonate, and by means of low-temperature decomposition of the organic alumina. The method can be applied to dry pressing and tape casting shaping, can obtain slurry with good dispersing characteristic and even mixing of the aluminium nitride and the nano-alumina by the ceramic preparation process, such as normal pressure, hot pressed sintering or the like, and is favorable for the improvement of sintering activity of materials, the reduction of sintering temperature, the improvement of luster uniformity, planeness and roughness for a ceramic substrate, and the reduction of production cost. The aluminium nitride ceramic material and the preparation method thereof can be widely applied to the field of aluminium nitride ceramic production.

The invention relates to an anti-cracking low-shrinkage-deformation fiber-cement product and a production method thereof. Concretely, a novel fiber-reinforced cement product with an excellent anti-cracking function and low shrinkage deformation is realized through an ultra-short fiber, low-elasticity-modulus short fiber and high-elasticity-modulus long-fiber composite reinforced-cement base material by simultaneously adopting high-efficiency additives (a high-efficiency water-reducing agent, a thickening agent, an expanding agent and the like). The product comprises a flexible anti-cracking surface layer and a fiber-reinforced cement structural layer, has a simple and resaonable structure, is convenient and easy in production construction and can be applied to projects, such as building external-wall decorative enclosure, indoor engineering construction as well as roads, bridges and the like with higher requirements on the strength and the durability of the cement base material.

The invention relates to a preparation method of nanometer in situ composite reaction type organic silicone modified cationic water-based polyurethane and a product thereof. The preparation method comprises the following steps: preparing raw materials of basic monomers, modified monomers and adjuvants; carrying out dewatering pretreatment on mixed polyether glycol; and carrying out pre-polymerization, chain extension, blocking, quaternization and emulsification. So the nanometer in situ composite reaction type organic silicone modified cationic water-based polyurethane is obtained. The method is easy to implement and control, and the nanometer in situ composite reaction type organic silicone modified cationic water-based polyurethane prepared by the method is in a microemulsion state, has a small and uniform emulsion particle size and a good dispersion, and combines merits of organic silicone, polyurethane and inorganic nanometer materials. So the polyurethane prepared in the invention, which can be used to improve the color fastness and pilling resistance of various dyed textiles, allows the textiles to have certain stain resistance, and soft feel of the textiles not to be damaged. Thereby the polyurethane has the advantages of good application performance, wide range of use, safety and environmental protection, and convenient usage.

Disclosed are amorphous carbon nanofibers including copper nanoparticles or copper alloy nanoparticles, copper composite nanoparticles prepared by grinding the amorphous carbon nanofibers and implemented as surfaces of Cu-included particles are partially or wholly coated with amorphous carbons, a dispersed solution including the copper composite nanoparticles, and preparation methods thereof and the amorphous carbon nanofibers include nanoparticles including copper, copper nanoparticles or copper alloy nanoparticles, and, the copper composite nanoparticles are implemented as surfaces of Cu-included particles are partially or wholly coated with amorphous carbons.

A retardation film which comprises a stretched polymer film and satisfies the following formulae (1) to (3): 0.70<Re[450] / Re[550]<0.97(1); 1.5×10-3<Deltan<6×10-3(2); and 1.13<NZ<1.50(3), wherein: Re[450] and Re[550] represent in-plane retardation values of the retardation film as measured at 23° C. using light with a wavelength of 450 nm and light with a wavelength of 550 nm, respectively; Deltan represents an in-plane birefringence equal to (nx-ny) (where nx and ny represent refractive indexes in a slow axis direction and a fast axis direction of the retardation film, respectively); and NZ represents a ratio of a thickness-direction birefringence equal to (nx-nz) (where nz represents a refractive index in a thickness direction of the retardation film) to the in-plane birefringence equal to (nx-ny).

The invention relates to a detecting method and a dielectric particle containing magnetic material employed in the detecting method. In order to improve the practical utility of detection methods that utilize localization of bound substances by magnetic particles. A magnetic binding substance (Bm), which is a first binding substance (B1) that specifically binds with a target substance (A), having magnet enveloping dielectric particles (B), which have magnetic particles (M) enveloped therein and surfaces modified with functional groups that exhibit polarity within a liquid sample, attached thereto, and a labeling binding substance (B0), which is a second binding substance (B2) that specifically binds with the target substance (A) having photoresponsive labels (O) attached thereto, are mixed with the liquid sample such that binding reactions occur. A magnetic field is generated within a sample cell (10), to draw the magnetic binding substance (Bm) to a local region. Excitation light is irradiated only onto a predetermined region including the local region while the magnetic binding substance (Bm) is drawn to the local region, causing the photoresponsive labels (O) present therein to generate optical signals. The optical signals are detected.

Into calcium hydroxide emulsion of 10-12 wt% concentration and at 20-25 deg.c, compound crystal form controlling agent is added while stirring, and then the mixture is transferred into a bubbling carbonating tower for carbonization for 50-70 min while introducing CO2 gas in the rate of 50-80 1 / min. Kg calcium hydroxide and cold water to control the temperature not higher than 60 deg.c until the pH value being reduced to 7-8. Through the one-step carbonization process, cubic calcium carbonate of 80-100 nm size is prepared. The said process is suitable for use in industrial production and has low production cost and high production efficiency, and the product has excellent dispersant characteristic and may be widely used, especially in producing silicon rubber product.

The invention relates to a disinfecting agent, more specifically, to a Gemini-tamed iodine composite bactericide, wherein the agent is recombined from Gemini and I2, the effective iodine content is 6-10 wt%, the constitutional formula is disclosed in the specification. The Gemini-tamed iodine bactericidal agent is an organic-inorganic compound system with greatly improved stability and lowered excitation.

The invention discloses a method for preparing a nanocomposite dielectric film. The method comprises the following steps of: firstly obtaining a polymer dielectric film by a Langmuir-Blodgett (LB) film method; secondly preparing a high-dielectric inorganic / organic composite nanoparticle film on the polymer dielectric film by the LB film method; and finally preparing a polymer dielectric film on the composite nanoparticle film by the LB film method, thereby forming a high-dielectric composite film material with nanoparticles dispersed in a polymer. The polymer-nanoparticle composite dielectric film material prepared by the method overcomes the shortcomings of the prior art, and the preparation method is reasonable and simple, and easy to operate.

The invention discloses a treatment method for improving operating characteristics of nano-zinc oxide. The treatment method comprises the following steps of soaking modification treatment and deposition modification treatment. The prepared modified nano-zinc oxide has good dispersing characteristics, an agglomeration phenomenon is not likely to occur, the strength, corrosion resistance and temperature resistance of the nano-zinc oxide are very well improved, the compatibility with organic components are better, a filling usage effect is good, and the nano-zinc oxide has a popularization and usage value.

The invention discloses a self-microemulsion composition of an insoluble medicine and without an oil phase. The composition comprises active medicines, a solvent and a surfactant, and can be adsorbed by a solid adsorbent to further obtain a solid self-microemulsion composition. The high in-vitro dissolution rate and the high in-vivo biological utilization degree of the self-microemulsion composition disclosed in the invention are maintained.

The invention discloses a graphene / trimanganese tetraoxide composite nano lubricating additive and a synthesis method thereof. Specifically, the synthesis method includes: mixing graphite with concentrated sulfuric acid and potassium permanganate in a high mass ratio, and carrying out oxidation reaction to obtain a mixed solution containing graphite oxide and / or graphene oxide; adding hydrogen peroxide into the mixed solution to reduce unreacted potassium permanganate, and adding water for dilution, and conducting ultrasonic treatment for a predetermined period of time to obtain a graphene oxide mixed solution; adjusting the pH of the graphene oxide mixed solution to alkaline, and carrying out reaction to obtain trimanganese tetraoxide and loading it to graphene oxide, and evaporating or filtering the mixture to obtain a solid product; subjecting the solid product to reduction treatment at high temperature to obtain a graphene / trimanganese tetraoxide composite product; and cleaning thegraphene / trimanganese tetraoxide composite product, and then performing ball milling treatment, thus obtaining the graphene / trimanganese tetraoxide composite nano lubricating additive. The method issimple and efficient, and the prepared additive has excellent dispersibility and lubricity.

A method of manufacturing a dispersion medium includes bonding a siloxane compound to the surface of core particles by a precursor of the siloxane compound and the surface of the core particles being reacted in the dispersion medium, and removing the precursor not bonded to the core particles.

The invention discloses a dispersion method of nanoscale inorganic particles suitable for composite electrodeposition and belongs to the field of nanoscale inorganic particle dispersion treatment. According to the dispersion method, firstly, the nanoscale inorganic particles are activated, and active sites of hydroxide radicals are increased on the surfaces of the nanoscale inorganic particles; then, the nanoscale inorganic particles with the surfaces containing the hydroxide radicals are subjected to pre-adsorption treatment in treating liquid A, so that nanoscale inorganic particles with thesurfaces containing the hydroxide radicals and nonionic long-chain groups simultaneously are obtained; and next, the obtained particles are subjected to secondary adsorption treatment in treating liquid B, so that nanoscale inorganic particles with the surfaces containing the nonionic long-chain groups and anionic surfactant long chains are obtained. According to the nanoscale inorganic particleswith the surfaces containing the nonionic long-chain groups and the anionic surfactant long chains, surface Zeta potential can reach -10mv to -40mv, the dispersity is good, the nanoscale inorganic particles applied to a composite coating obtained in composite electrodeposition are uniformly deposited, and the content of the nanoscale inorganic particles reaches more than 10%.

The invention provides a method for preparing superfine alumina. The method comprises the following steps: (1) performing coarse grinding on alumina slurry in presence of a first dispersing agent; (2)filtering the alumina slurry subjected to coarse grinding; (3) performing fine grinding on the filtered alumina slurry in presence of a second dispersing agent; and (4) drying and grinding the alumina slurry subjected to fine grinding, wherein the first dispersing agent is ammonium polyacrylate, and the second dispersing agent is a mixture of polyacrylic acid and ammonium polyacrylate. The invention further provides superfine alumina powder prepared by the preparation method, and a lithium ion battery diaphragm coating or an electrode coating containing the high-purity superfine alumina powder.

The invention provides a graphene aqueous dispersion liquid, graphene concrete and preparation methods of the graphene aqueous dispersion liquid and the graphene concrete. The graphene aqueous dispersion liquid is prepared from the following raw materials, in percentages by mass: 1-5% of graphene or graphene oxide, 0.5%-2% of sodium dodecylbenzenesulphonate, 0.5%-2% of polyvinylpyrrolidone, and the rest is water. The preparation method of the graphene aqueous dispersion liquid includes the following steps: taking the graphene or the graphene oxide, the sodium dodecylbenzenesulfonate, the polyvinylpyrrolidone and the water according to percentages by mass, and performing full mixing and dispersion to obtain the graphene aqueous dispersion liquid. The invention aims to provide the graphene aqueous dispersion liquid and the preparation method thereof, and the preparation method of the graphene concrete by using the graphene aqueous dispersion liquid. The graphene aqueous dispersion liquidprovided by the invention can improve the problem of settlement of graphene in an aqueous medium, realize the uniform and stable dispersion of graphene in cement concrete, and can be used to preparethe graphene concrete with excellent quality and performance.

The invention discloses a microencapsulated animal drug which comprises the following synthesis raw materials in parts by weight: 9-29 parts of drug, 56-86 parts of wall material and 3-7 parts of an emulsifying agent. The invention further relates to a preparation method for the microencapsulated animal drug. The preparation method comprises the following steps: 1) preparing raw materials, 2), dissolving the wall material into water so as to obtain a water phase A; 3), dissolving the drug into a solvent, and adding the emulsifying agent so as to obtain an oil phase B; 4), under the condition of high shearing and high stirring, adding the oil phase B into the water phase A, stirring and emulsifying at a high speed and heating to remove the solvent so as to obtain microemulsion; 5), adding the obtained microemulsion into a spray granulation tower and mixing the microemulsion with corn starch or rice bran, and carrying out spray-drying, so as to obtain the microencapsulated animal drug granules or powder. The microencapsulated animal drug prepared through the preparation method disclosed by the invention is good in covering effect and good in flowing properties and the purposes of masking the smell, preventing dampness, and improving drug stability and drug bioavailability are realized.

A lubricating composition for use in the crankcase of an engine comprising a base oil and one or more additives, wherein the base oil comprises a Fischer-Tropsch derived base oil and wherein the lubricating composition comprises one or more comb polymers. The lubricating composition of the present invention has been found to improve sustained fuel economy properties whilst obtaining improved piston cleanliness properties and improved dispersancy properties.

The present invention relates to a binder for a lithium-sulfur secondary battery cathode, and a composition containing the same. The binder of the present application enables a cathode active material electrolyte to have excellent resistance.

The invention discloses an infantile umbilical paste and a preparation method thereof. The infantile umbilical paste is prepared from the following raw materials in parts by weight: 100 to 150 parts of Chinese traditional medicine extracts, 80 to 100 parts of fillers, 30 to 60 parts of penetrating agents, 30 to 50 parts of pressure sensitive adhesive, 5 to 10 parts of carbomer and 3 to 5 parts of talcum powder, wherein the Chinese traditional medicine extracts are prepared from the following traditional Chinese medicine in parts by weight: 50 to 60 parts of dyer woad leaves, 50 to 60 parts of radix astragali seu hedysari, 45 to 50 parts of radix bupleuri, 35 to 45 parts of radix puerariae, 30 to 40 parts of white gourd, 18 to 25 parts of liquorice roots, 15 to 20 parts of fresh ginger, 5 to 8 parts of cicada slough and 3 to 7 parts of propolis. The infantile umbilical paste has the advantages that the curative effect is good; the defervescence is fast; no toxic and side effects exist; the viscosity is good; the infantile umbilical paste is particularly suitable for being applied to infants.

The invention belongs to the technical field of DTY oil, and particularly relates to anti-yellowing stable DTY textile oiling agent and a preparation method thereof. The DTY textile oiling agent is prepared from industrial white oil, polyoxyethylene (20) sorbitan monooleate, sorbic acid monostearate, D-phenylalanine, 1-fluoro-6-isopropyl quinoline iodate, an antistatic agent, an anti-splashing agent and a penetrating agent. The anti-yellowing stable DTY textile oiling agent provided by the invention not only has excellent bundling property, smoothness, emulsifying property and antistatic property, but also has very excellent stability, and can keep self-stability for a long time without yellowing.

The invention discloses a preparation method of a hypocrellin-transferrin targeted drug delivery system and an application of the hypocrellin-transferrin targeted drug delivery system in photodynamic therapy. The method comprises the following steps: with holo-transferrin as a carrier, inactivating the holo-transferrin by urea and beta-mercaptoethanol, and making a three-dimensional structure loose to expose Fe-ion coordination sites; adding excessive hypocrellin, coordinating with Fe coordination sites, eliminating uncombined HA and urea through dialysis, and restoring the three-dimensional structure of holo-transferrin with beta-mercaptoethanol, thereby obtaining the hypocrellin-transferrin targeted drug delivery system. The method is simple in preparation and good in application prospect; the hypocrellin-transferrin targeted drug delivery system can be prepared into freeze-dried powder for storage, and the freeze-dried powder is prepared into a preparation suitable for intravenous injection after being dissolved. Due to the tumor targeting action of holo-transferrin in the system, the photosensitive anti-tumor activity of hypocrellin can be significantly strengthened by the targeted drug delivery system.

The invention provides preparation and application methods of a carbon-nanotube-base magnetic bactericide molecularly-imprinted polymer, relating to preparation and application methods of bactericide molecularly-imprinted polymers. The invention aims to solve the problems of time consuming, high organic solvent consumption and low selectivity in the sample pretreatment technique in the existing bactericide residue analysis, the problem of the solution polymerization phenomenon in the existing bactericide molecularly-imprinted polymer synthesis process, and the problem that the solution separation process needs the vacuum filtration or centrifuging step. The preparation method comprises the following steps: 1. activating carbon nanotubes; 2. hydroxylating the carbon nanotubes; 3. preparing the magnetic carbon nanotubes; 4. preparing the initiator / magnetic carbon nanotubes; and 5. carrying out polymerization reaction. The application method comprises the following steps: adding the carbon-nanotube-base magnetic bactericide molecularly-imprinted polymer into a bactericide-containing sample solution, and sequentially carrying out oscillation, magnetic resolution and elution.

The invention discloses a gemini surfactant and a preparation method thereof, relating to the technical field of surfactant. The preparation method for the gemini surfactant comprises the following steps: adding maleic anhydride and saccharose in a molar ratio of 1 to 2 of maleic anhydride to organic solvent; using catalyst to catalyze the reaction to acquire malelic sucrose diester; mixing the reactant and aliphatic ester in a molar ratio of 1 to 2 to acquire malelic sucrose aliphatic diester. According to the invention, a molecular designing principle is adopted to react maleic anhydride with sucrose to obtain malelic sucrose diester, and then react the recant with the aliphatic ester to obtain the malelic sucrose aliphatic diester which is a surfactant with a dimerization structure, wherein the substance has good surface activity; R is selected from C12 and C18 alkyls and C18 alkene.

The invention relates to a photocuring 3D printing nanoparticle reinforced metal part and a preparation method thereof. The preparation method comprises the following steps that after amorphous powder and a coating agent are mixed, a coupling agent and metal powder are added into a mixture at the set temperature, and stirring is carried out for coating; post-treatment is carried out on a product obtained in the coating step, and an amorphous layer coated metal powder material is obtained; the amorphous layer coated metal powder material, photosensitive resin, an ultraviolet light initiator and a dispersing agent are prepared into a photocuring 3D printing slurry; a photocuring 3D printer is used for carrying out photocuring forming treatment on the photocuring 3D printing slurry, and a photocuring 3D printing biscuit is obtained; and degreasing and sintering treatment are carried out on the photocuring 3D printing biscuit, and the photocuring 3D printing nanoparticle reinforced metal part is obtained. According to the photocuring 3D printing nanoparticle reinforced metal part and the preparation method, the metal powder is prepared into the amorphous layer coated metal powder material with a powdery core-shell structure, so that the dispersity of the metal powder in the photosensitive resin slurry is improved, and the photocuring 3D printing nanoparticle reinforced metal part is prepared.

The invention discloses a method for preparing a nanocomposite dielectric film. First, a polymer dielectric film is obtained by a Langmuir-Blodgett (LB) film method, and then a high dielectric inorganic / The organic composite nanoparticle film is finally prepared on the composite nanoparticle film by the LB film method to prepare a polymer dielectric film, thereby forming a high dielectric composite film material in which nanoparticles are dispersed in the polymer. The polymer-nano particle composite dielectric film material prepared by the method overcomes the defects in the prior art, and the preparation method is reasonable and simple, and is easy to operate.

Quantum dots and application thereof are provided. The quantum dots of the present invention have a ligand layer on the surface, and the ligand layer contains one or more of the compounds representedby Chemical Formulas 1 to 4. The quantum dots of the present invention are excellent in oxidation stability, and thus can be effectively applied to quantum dot dispersions, quantum dot light conversion compositions, and the like. In chemical formula 1, L is a C1-C22 alkylene group, R is hydrogen or methyl, and n is an integer from 1 to 3; in chemical formula 2, R1 is hydrogen, etc., and R2 is a C1-30 alkylene group; in the chemical formula 3, R3 is hydrogen or methyl, R4 is a C1-C30 linear or branched alkylene group, and m is an integer from 1 to 100; in the chemical formula 4, R5 is hydrogenor methyl, R6 is a C1-C30 linear alkylene group, A is -O-, -NH-, etc., R7 is a C1-C7 alkyl group, and l is an integer of 1 to 250.

The invention discloses a preparation method of an organosilicon / hydroxyapatite composite adsorption fiber. The preparation method comprises the following steps: adding polyvinylpyrrolidone to anhydrous ethanol, and performing ultrasonic uniform stirring until the polyvinylpyrrolidone is completely dissolved in order to obtain a dispersed alcohol solution; carrying out wet ball-milling on the hydroxyapatite to form a fine powder, slowly adding the fine powder to the dispersed alcohol solution, and performing a low-temperature ultrasonic reaction for 2-3 h to obtain a first mixed solution; adding dichlorodimethylsilane to toluene, performing stirring until uniformity, then dropwise adding distilled water, and performing sealing stirring for 1-3 h to obtain a second mixed solution; slowly adding the first mixed solution to the second mixed medium, carrying out low-temperature and high-frequency ultrasonic dispersion for 30-60 min, and performing microwave oscillation for 1-2 h to obtaina pre-spinning solution; carrying out high-temperature electrostatic spinning on the pre-spinning solution to obtain single-fiber spun filament, twisting several strands of the single-fiber spin filaments to form twisted spun filaments, and bundling the twisted spun filaments to form a fiber web; and adding the fiber web an ethanol-water solution, carrying out a microwave oscillation reaction for30-60 min, and taking out and drying the fiber web to obtain the organosilicon / hydroxyapatite composite fiber material.

The invention relates to the field of inks, and discloses an electric-conduction ink containing a graphene complex, and a preparation method thereof, wherein the electric-conduction ink contains a specially-made graphene complex, the graphene complex is prepared by using a special graphene stripping agent, and has high peeling strength, and the electric-conduction ink made of the graphene complexhas significantly excellent electric conductivity compared with the electric-conduction ink containing the existing graphene and the derivative thereof.