42results about How to "Guaranteed Dispersion" patented technology

The invention discloses a filling masterbatch used in biodegradable plastic. The masterbatch is composed of components of, by mass: (A) 20.0-80.0% of biodegradable polyester, (B) 1.0-80.0% of a filling material, (C) 0.1-10.0% of a lubricating agent, (D) 0.1-5.0% of a high-temperature-resistant agent, and (E) 0.1-5.0% of a hydrolysis-resisting agent. The masterbatch is advantaged in that: (1) compatibility of the carrier is consistent with that of the biodegradable plastic, such that the filling masterbatch has excellent dispersity in the biodegradable plastic; (2) the obtained filling masterbatch satisfies an application requirement of biodegradable plastic En13432; when the filling masterbatch is mixed with biodegradable plastic, the biodegradation performance of the original material is completely maintained; (3) high temperature and hydrolysis resistances of the filling masterbatch are good, and the filling masterbatch has high physical mechanical properties; (4) with the filling masterbatch, while the cost of biodegradable plastic is reduced, physical chemical properties especially the biodegradation performance of the filled material are maintained.

The invention relates to an anti-hydrogen embrittlement, high-strength and high-toughness stainless steel bar for a fastener, and a manufacturing method thereof, belongs to the technical field of metal materials, and solves the problem of low matching degree of anti-hydrogen embrittlement property and high toughness of a fastener used in an aerospace environment. The anti-hydrogen embrittlement, high-strength and high-toughness stainless steel bar for the fastener comprises the following elements in mass fraction: 0.0001%-0.01% of C, 0%-0.10% of Si, 0.01%-0.15% of Mn, 0%-0.005% of S, 0%-0.015%of P, 10.50%-12.50% of Cr, 10.70%-11.50% of Ni, 0.75%-1.25% of Mo, 1.20%-1.70% of Ti, 0%-0.10% of Al, not greater than 1.5ppm of H, and the balance iron and inevitable impurities. The stainless steelbar meeting the comprehensive performance of high strength, high toughness and anti-hydrogen embrittlement property simultaneously is prepared, and the use requirement of the fastener making contactwith a corrosive medium and used for the aerospace environment is met.

The invention provides highly dispersible black colorant rubber. The highly dispersible black colorant rubber comprises, by mass, 30% of butadiene-styrene rubber, 18.5% of calcium carbonate, 8% of softening oil, 42% of carbon black, 1% of an anti-aging agent and 0.5% of a slipping agent. The invention also provides a preparation method of the highly dispersible black colorant rubber. The preparation method can ensure that the carbon black and auxiliary agents in the rubber can be uniformly supported by the carrier rubber, keep good color development physical properties and a dispersion degree of the black rubber, and satisfy colorant rubber plasticity demands in later processes such as normal rolling and extrusion.

The invention relates to the field of bearings and provides a combination bearing for a disc-shaped elevator tractor. The combination bearing comprises an inner bearing ring and a first outer bearing ring and a second outer bearing ring which are located on the inner bearing ring; the first outer bearing ring and the second outer bearing ring are closely arranged along an axial direction of the inner bearing ring; a radial cylindrical roller component is arranged between the first outer bearing ring and the inner bearing ring; a ball bearing component is arranged between the second outer bearing ring and the inner bearing ring; a first sealing ring is arranged between the first outer bearing ring and the axial outer end of the inner bearing ring; a second sealing ring is arranged between the second outer bearing ring and the axial outer end of the inner bearing ring. The combination bearing is mainly designed for the machinery, such as the elevator tractor; the combination bearing can simultaneously bear the radial load and the axial load, and is especially suitable for the occasions with higher rotating speed and higher axial load; the assembling and disassembling are simple and the bearing capacity is ultrahigh; the combination bearing has an excellent sealing effect and can guarantee that the lubricating grease does not leak in the running process of the bearing.

The invention relates to the field of bearings, in particular to a combination bearing suitable for an elevator disc tractor. The combination bearing comprises a bearing inner ring, a first bearing outer ring and a second bearing outer ring, wherein the first bearing outer ring and the second bearing outer ring are positioned on the bearing inner ring, the first bearing outer ring and the second bearing outer ring are arranged in the axial direction of the bearing inner ring in a gathered manner; a radial cylindrical roller assembly is arranged between the first bearing outer ring and the bearing inner ring, a ball bearing assembly is arranged between the second bearing outer ring and the bearing inner ring, four-point contact of the ball bearing assembly in the radial direction and the axial direction is achieved, and it is necessary to note that four-point contact is that two end points, in the axial direction of the bearing inner ring, of the ball bearing assembly and two end points, in the radial direction of the bearing inner ring, of the ball bearing assembly make contact with a component to form positioning. The combination bearing is mainly designed for the elevator tractor and other machines; due to the fact that the combination bearing can bear radial loads and axial loads at the same time, the combination bearing is especially suitable for occasions where the rotating speed is relatively high and relatively large axial loads exist; and the combination bearing is easy to mount and demount and very high in bearing capacity.

The invention provides a seed analyzer for measuring the thousand kernel weight of wheat in a laboratory, and belongs to the technical field of thousand kernel weight analyzers. The seed analyzer formeasuring the thousand kernel weight of wheat in a laboratory comprises a work table, a counting mechanism, a seed spreading mechanism, and a sweeping mechanism. A counting groove is formed in the upper end of the work table. A counting plate is arranged in the middle of the counting groove. A weighing instrument is arranged at the lower portion of the counting plate. The counting mechanism is arranged at the edge of the upper end of the work table. The seed spreading mechanism is arranged in the counting groove and comprises a feeding assembly, a seed spreading assembly and a driving assembly. The seed spreading assembly is arranged at the lower end of the feeding assembly. The driving assembly is arranged beside the feeding assembly. The sweeping mechanism is arranged at one side of theseed spreading mechanism and comprises a sweeping assembly and limiting assemblies, wherein the limiting assemblies are arranged at both ends of the sweeping mechanism. According to the seed analyzerfor measuring the thousand kernel weight of wheat in a laboratory, the seeds can be effectively prevented from being stacked together, and the counting and weighing speed is improved.

The invention discloses a processing technology of deep sea fish oil in high EPA (Eicosapentaenoic Acid) DHA (Docosahexaenoic Acid) contents. The deep sea fish oil is subjected to the technologies such as fish oil pretreatment, decoloration and deodorization, fractionation and winterization. According to the processing technology disclosed by the invention, decoloration and deodorization are combined together, heating time is shortened while refining of oil is carried out at a lower temperature, DHA and EPA in the fish oil can be effectively prevented from being decomposed during a deodorization and decoloration process due to too high temperature, the probability of oxidation is reduced, meanwhile, generation of pollutants such as trans-fatty acid can be controlled, and the DHA and EPA contents of products can be increased; meanwhile, the DHA and EPA contents in the fish oil can be further increased through refining and an improved secondary winterization process, the DHA and EPA contents in the fish oil which is finally obtained through a method are three times or above higher than those of common fish oil, and the fish oil can be directly applied to healthcare products and babyfood.

The invention provides thermochromic compounding agent microcapsule suspension liquid for vulcanization of synthetic latex, and a preparation method of the thermochromic compounding agent microcapsule suspension liquid. The microcapsule suspension liquid can be prepared by the steps of melting solid paraffin, mixing a vulcanizing compounding agent and the melted solid paraffin, adding the mixture into an aqueous solution of an emulsifying agent, emulsifying and cooling. According to the microcapsule suspension liquid provided by the invention, the vulcanizing compounding agent can be controlled by temperature to release and the vulcanizing compounding agent is wrapped by a paraffin wall material, so the problem of reduced stability or prevulcanization of the latex caused by direct contact of vulcanizing compounding agent with latex particles is avoided, relatively high heat and mechanical stability are achieved under the condition being lower than melting point; and when the temperature of the latex reaches or exceeds the melting point of the paraffin wall material, the compounding agent can release by breaking the capsule wall and is subjected to cross-linking reaction with the latex particles, so the latex is vulcanized.

The invention relates to a graphene composite heat dissipation film. The composite heat dissipation film is a laminated sheet layer of at least 20 layers or more, and comprises 100 parts by weight ofgraphene nanoplatelets with large radial sizes and 0.5-2 parts by weight of ZnO quantum dots 90% attached to the surface of graphene. The preparation steps include a graphene nanoplatelets preparationstep, a preparation step, a dispersion liquid preparation step and a heat dissipation film preparation step.

The invention relates to the field of ceramics, and particularly discloses a low-shrinkage porous ceramic component, an injection feed and a preparation method thereof. The porous ceramic component comprises inorganic framework whiskers, an inorganic bonding material and an inorganic filling material, and the inorganic framework whiskers comprise one or more of SiC whiskers, Al2O3 whiskers, SiO2 whiskers and AlN whiskers; the preparation method comprises the following steps: uniformly ball-milling the treated ceramic components, internally mixing with an injection accelerator, an injection skeleton agent, an injection filler and a plasticizer, adding into a granulator to prepare the injection feed after the internal mixing is completed, finally injecting the injection feed into a ceramic green body, discharging glue, and sintering to obtain the low-shrinkage porous ceramic. The low-shrinkage porous ceramic disclosed by the invention can be applied to the fields of electronic cigarettes, atomization medical treatment and atomization cosmetic instruments, and has the advantages of low shrinkage rate, controllable size, high product percent of pass and the like.

The invention relates to the technical field of catalysts, in particular to a supported metal catalyst and a preparation method and application thereof. The supported metal catalyst comprises a supporter and metal supported on the supporter, wherein the supporter is an aluminum-containing precursor of a framework structure with ducts, and the diameter of each duct is 1-5 nanometers; the metal is transition metal, and the particle size of the metal is 2-15 nanometers. The supported metal catalyst is high in conversion rate and high in selectivity. By the preparation method, the supported metalcatalyst with high conversion rate and selectivity can be prepared. The supported metal catalyst can be applied to methane preparation using synthetic gas.

A pneumatic conveying variable spray head comprises a housing, a nozzle is arranged in the front end of the housing, the rear end of the nozzle is fixedly connected with a sliding plug, a pipe base is arranged in the sliding plug in a sleeved mode and connected with one end of a water inlet pipe, and the nozzle, an inner cavity of the sliding plug, an inner cavity of the pipe base and the water inlet pipe form a cavity used for liquid circulation. The spray nozzle is provided with multiple layers of spray outlets capable of moving relatively, can be adjusted in a segmented manner, can adjust and control the positions of the fog drop outlets according to the change of wind power by driving a sliding plug through blades, has the function of adjusting the spray angle along with the wind speed, realizes the change of the annular spray flow section along with the wind speed, effectively guarantees the dispersion degree of fog drops, and can be used for spraying the fog drops even if the wind speed is increased. And by increasing the diameter of the spraying section, the fog drop concentration in the wind field is relatively uniform, the spraying section is controllable, and the requirement of accurate variable spraying is met.

The present invention provides a method for preparing an EVA emulsion by adding an alcohol solvent. The method comprises: in a water phase solvent, carrying out an emulsion copolymerization reaction on ethylene and a vinyl acetate (VAc) monomer, and adding an alcohol compound as a second solvent during the copolymerization process. According to the present invention, the method has advantages of polymerization rate controlling, significantly-reduced product viscosity, particle morphology and toughness strength maintaining, and polymerization reaction time shortening; and the obtained EVA emulsion product has advantages of good stability, moderate VAc content and excellent performance, and can meet different needs.

The invention discloses a domestic stainless steel surface degreasing reagent and a preparation method thereof, wherein the domestic stainless steel surface degreasing reagent is prepared from the following raw materials in parts by weight: 5-10 parts of sodium tert-butoxide, 5-10 parts of sodium stearate, 5-10 parts of sodium acetate, 5-10 parts of betaine, 5-10 parts of disodium hydrogen orthophosphate, 5-10 parts of DBU, 5-15 parts of a surfactant, 30-40 parts of ethanol, 35-40 parts of distilled water, 1 part of a flavor and 1 part of a vegetarian meat powder; the raw materials are stirred, subjected to ultrasonic vibration and evenly dissolved to obtain the product. The domestic stainless steel surface degreasing reagent has good antirust effect and long staying time on the surface ofstains; the required amount of the product is one-tenth that of a conventional product when a same cleaning purpose is achieved.

The invention discloses an evenly dispersed concrete building block, which comprises the following raw materials in parts by weight: 120 to 140 parts of cement, 40 to 50 parts of moulding promoter, 2to 6 parts of iron powder, 1 to 3 parts of potassium carbonate, 2 to 5 parts of polyoxyethylene nonyl phenyl ether, 1 to 3 parts of organic silicon waterproof agent, and 2 to 8 parts of rosin compound. The rosin compound is prepared by the following steps: mixing hydroquinone, critic acid, and formaldehyde; heating the mixture under stirring, carrying out vacuum dehydration, heating, adding rosin,maintaining the temperature, then adding polyethylene glycol, stirring, and cooling. The provided evenly dispersed concrete building block has the advantages of low price, high strength, durability,green, environmental friendliness, and pollution-free property.

The invention discloses a magnetic field enhanced plasma jet generation device, which belongs to the field of low-temperature plasmas, and comprises a plasma jet generation unit used for generating a plasma jet and outputting the plasma jet through a gas output pipeline of the plasma jet generation unit; the annular magnet is arranged on the outer side of the gas output pipeline in a surrounding mode and used for generating a magnetic field in the gas output pipeline, and the direction of Lorentz force provided by the magnetic field for the plasma jet is consistent with the flowing direction of the plasma jet so that the flowing speed of the plasma jet can be increased. The problems that an existing plasma jet is short in length, uneven in discharge and low in active component concentration are solved, the uniformity of dispersion and spatial distribution of the plasma is guaranteed, the concentration of active oxides in the plasma is enhanced, the contact efficiency of the products and processed objects in application is improved, and then the working efficiency of the whole device is improved.

The invention relates to a hybrid modified EG preparation method. The preparation method comprises the following steps: mixing a citric acid aqueous solution, indium vanadate, cerium oxide, montmorillonite, a hydrobromic acid aqueous solution, graphene oxide, and tin oxide and performing a hydrothermal reaction, grinding a mixture, and performing steps of filtering, calcining, washing and drying to obtain an EG anti-aging agent; mixing glycol, propylene glycol, butylene glycol, a lactic acid cosolvent and the obtained EG anti-aging agent, magnesium oxide, and titanium dioxide, grinding the mixture, and performing steps of dispersing and filtering to obtain the hybrid modified EG mother liquor; and adding the hybrid modified EG mother liquor in EG in a spray form to obtain the hybrid modified EG. The product has the long lasting anti-aging effect.