48results about How to "Disperse fully and evenly" patented technology

The invention relates to a graphene thermal conductive plastic. The graphene thermal conductive plastic comprises, by mass, 60 to 90% of a resin, 1 to 20% of graphene, 5 to 20% of a fire retardant, 1 to 10% of a dispersant, 0.5 to 5% of an antioxidant, 0.1 to 5% of a coupling agent, and 1 to 10% of an auxiliary agent. The invention also provides a preparation method of the graphene thermal conductive plastic. Adding of magnesium oxide, aluminum oxide, and silicon carbide is capable of achieving uniform distribution of grapheme, and increasing thermal conductivity of the graphene thermal conductive plastic.

The invention discloses a novel nanometer reinforced, non-transition-layer, organosilicone and low-surface-energy type antifouling paint which can be directly coated to a base material and an epoxy primer without an intermediate transition layer. The antifouling paint comprises the following components in parts by weight: 10 to 20 parts of A, 2 to 10 parts of B, and 0.1 to 2 parts of C, wherein the component A comprises the following materials in parts by weight: 25.0 to 50.0 parts of nanometer pre-dispersed slurry, and 0.5 to 5.0 parts of silicone oil; the component B comprises the following materials in parts by weight: 3.0 to 50.0 parts of crosslinking curing agent, and 1.0 to 10.0 parts of silane coupling agent; the component C comprises the following materials in parts by weight: 0.1 to 3.0 parts of catalyst. The coating has the advantages of being high in intensity, high in attaching force, easy to be constructed, and high in recoatability, and can be applied to various ships, offshore oil platforms, ocean structures and facilities, and mariculture nets and the like.

The invention discloses a nano-antibacterial low-surface energy organosilicon luminescence anti-fouling paint, which comprises the following components by weight: 25-35 parts of component A, 2-5 parts of component B and 1 part of component C; the component A comprises 25.0-50.0 parts of nano fluorescence pre-dispersion, 5-25.0 parts of organosilicon quaternary ammonium salt and 0.5-5.0 parts of silicone oil; the component B comprises 3.0-50.0 parts of crosslinking curing agent and 1.0-10.0 parts of silane coupling agent; The component C comprises 0.1-3.0 parts of catalyst; and the catalyst is at least one of stannous octoate, dibutyl tin diacetate and dibutyltin dilaurate. The paint has long persistence luminescent performance, has can prevent pollution by depending on fluorescence and enables contact sterilization, and has advantages of excellent antifouling performance, high strength and high adhesive force, can be used for various ships, sea petroleum platforms, marine structure and facility, marine aquaculture nets.

The invention relates to a preparation method of ultraviolet-resistant and high-temperature-resistant methyl silicone resin, relates to the preparation method of modified methyl silicone resin, and is used for solving the problems that the existing methyl silicone resin is poor in high temperature and ultraviolet resistance, complicated in preparation method and high in cost. The preparation method comprises the following steps of:1, dispersing ethyl orthosilicate in anhydrous ethanol and then adding a mixing solution of deionized water, the anhydrous ethanol and ammonia, thereby obtaining a silica ethanol solution; 2, dispersing tetrabutyl titanate in the anhydrous ethanol and then adding the mixing solution of the deionized water, the anhydrous ethanol and hydrochloric acid, thereby obtaining a titania ethanol solution; 3, dispersing methyl triethoxysilane and diethoxydimethylsilane in the anhydrous ethanol, thereby preparing a methyl silicone resin prepolymer; and 4, regulating the pH values of the solutions obtained in the steps 1 and 2 to be 7 and performing a refluxing operation after adding the prepolymer, thereby obtaining the methyl silicone resin. The method is conventional in raw material preparation as well as simple and easy to implement. The thermal weight loss rate of the modified methyl silicone resin at the temperature of 300 DEG C is 0.6, so that the modified methyl silicone resin is good in ultraviolet resistance.

The invention provides a preparation method for a graphene/epoxy resin composite material. The preparation method comprises the following steps that after graphene microsheets and an organic solvent are mixed, dispersion liquid is obtained; then, the dispersion liquid obtained in the first step is mixed with epoxy resin again, and mixed liquid is obtained; the mixed liquid obtained in the second step is subjected to vacuum rotary steaming, and a mixture is obtained; finally, a curing agent is added into the mixture obtained in the third step to be blended, and after resolidification, the graphene/epoxy resin composite material is obtained. For the problem that the mechanical performance of a graphene modified epoxy resin composition material is poor, a large number of experiments and a large deal of creative exploration are carried out on a plurality of steps and parameters in the preparation process; from the perspective of the addition proportion, the evaporation mode and the like, the vacuum rotary steaming mode is adopted, the removal efficiency of the solvent is improved, residues are reduced to the maximum extent, and the performance of the graphene modified epoxy resin is further improved through optimization of the whole operation steps.

The invention discloses a stirring device of high-speed dispersion equipment. The stirring device comprises a dispersion barrel, a dispersion wheel and a spindle. A barrier is arranged at the upper end of the dispersion barrel, a discharge cavity is formed on the upper side of the barrier, a through hole is formed in the center of the barrier, a dynamic screen cloth separator which is of a conical structure is arranged at the through hole in the barrier, a flow guide plate is arranged above a feed inlet, the section of the dispersion wheel is in the shape of a conical structure, the flow guide plate is arranged at the lower end of the dispersion wheel, supports are arranged between the dispersion wheel and the dispersion barrel, and a plurality of via holes are formed in the supports. The stirring device with the structure has the advantages that slurry is forced to be distributed peripherally and participates in dispersion procedures of the dispersion wheel, the consistency of the flow speeds of the slurry in a cavity can be guaranteed by the dispersion barrel which is of a conical structure, and the slurry can be sufficiently and uniformly dispersed; homogenized dispersion effects can be realized by the aid of the dynamic screen cloth separator which is of the conical structure, certain guide effects can be realized by the conical structure, good discharge and heat dissipation effects can be realized, and accordingly the quality of the slurry can be guaranteed.

The invention discloses a composite nano Cu2O/zinc oxide (ZnO) material with photocatalytic performance as well as a preparation method and application thereof, and belongs to the technical field of material preparation. A novel visible light catalyst is obtained. Nanometer zinc oxide particles are loaded on the surfaces of tetradecahedron cuprous oxide to form a heterostructure, rapid transportation and separation of photo-induced electrons and holes are effectively promoted, and the problems that a single cuprous oxide photocatalyst is high in cost, serious in photo-corrosion phenomenon, poor in stability and the like are solved. The preparation method of the composite material is simple, convenient to operate and beneficial to large-scale production.

The invention relates to a biodegradable high-performance modified particle material and a preparation method thereof. The biodegradable high-performance modified particle material is prepared from polylactic acid PLA, a natural organic plant fiber material, oxidized modified high-amylose starch, a composite plasticizer, a combined modifier, a functional aid, a modifier, modified carbon nanofibers and an inorganic filler. By carrying out melting reaction extrusion at 55-185 DEG C through a double-stage serial screw granulating unit, and carrying out mixing, reaction, extrusion, cooling, cutting, drying, sterilization and packaging, the particle material is obtained. Various household and industrial products, toys, stationery and electronic product shells are produced by adopting universal equipment such as extrusion molding, plastic uptake or injection molding units. The adopted raw materials are rich in source, the raw material cost is low, the process is simple, the production cost is low, and the prepared particle material has high strength and good antibacterial performance, anti-aging performance and hydrophobic performance and can meet the requirements of various biodegradable hard material products.

The invention discloses a fractional homogenate technology of a cathode slurry of a lithium ion battery. The technology comprises the following steps that a PVDF glue solution is measured according toset components, a measured conductive agent and the PVDF glue solution are input to a mixer and mixed, 1/3-1/2 of a measured active substance is removed, and input to the mixer for mixing; the residual active substance is added to the mixer for mixing once or twice; and a solvent is added and mixed, and the cathode slurry after homogenate is deareated in the vacuum condition for at least 2 hoursafter homogenate. The homogenate technology in which active substance is added in a fractional manner and the speed is reduced gradually is used, friction between the active substance and the inner wall of the mixer is obviously reduced, and it is ensured the temperature of the cathode slurry does not exceed 50 DEG C during homogenate.

The invention discloses a fluorubber use bisphenol AF pre-dispersion mother colloidal particle formula prepared from the following raw materials by mass: 30-70 parts of bisphenol AF; 35-55 parts of fluorubber; 0.1-10 parts of a dispersant; 0.1-10 parts of a release agent; and 0-1 parts of a colorant. The fluorubber as a carrier is cooperated with the dispersant and the release agent, the bisphenol AF curing agent is mixed into the fluorubber on an open blending machine, so that the bisphenol AF is fully dispersed uniformly in the fluorubber, the bisphenol AF curing agent has excellent curing properties in the fluorubber, and can meet the use requirements. The fluorubber use bisphenol AF pre-dispersion mother colloidal particle formula can improve the dispersion of the fluorubber curing agent bisphenol AF (2, 2-bis-(4-hydroxy phenyl) hexafluoropropane) and BPP (tri phenyl phosphorus chloride) in the fluorubber, and overcomes the problems of the poor dispersion and mutual smelting of a traditional curing agent in the fluorubber.

The invention discloses a preparation method of gallium-indium-zinc ternary nitrogen oxide. Ga(NO3)3*xH2O, Zn(Ac)2*2H2O, In(NO3)3*XH2O serve as a gallium source, a zinc source and an indium source, ethanol amine and a small amount of acetic acid serve as solvents, uniform precursor mixed solution is acquired by a solvent thermal method, a precursor is placed in a low-temperature environment for along time and is gel-like, the precursor is roasted at high temperature to obtain faint yellow gallium-indium-zinc oxide (GIZO), and finally, high-temperature nitridation is performed in ammonia atmosphere to prepare a grayish-green GIZNO nano-material. The prepared GIZNO has an obvious core-shell structure, density functional theory (DFT) calculation proves that the core-shell structure can effectively promote separation of photon-generated carriers in the photocatalytic water splitting process, and photocatalytic water splitting can be efficiently performed. 1wt% of rhodium (Rh) is loaded toserve as a co-catalyst, under the irradiation condition of visible light (lambda>=420nm), photocatalytic water splitting hydrogen production rate is 603 micromoles h<-1> g<-1>, oxygen production rateis 274 micromoles h<-1> g<-1>, the apparent quantum efficiency of a 430nm position reaches 3.5%, and a good application prospect is shown.

The invention discloses a dispersion mill for preparing nanometer material modified cement. A cabin body is separated into a mixing and grinding cabin and a material collecting cabin by a grid plate;the lateral upper part of the mixing and grinding cabin is provided with two feeding openings; a stirrer is arranged in the mixing and grinding cabin; a plurality of metal blocks are arranged in the mixing and grinding cabin; the lower half part of the material collecting cabin is a funnel; the bottom of the funnel is provided with a discharging opening. The mixing and grinding cabin can effectively realize the simultaneous mixing and grinding of nanometer materials and cement; the nanometer ore powder agglomeration is broken; the sufficient and uniform mixing of nanometer particles and otherpowder can be realized. In the use process, a discharging opening at the lower part of the material collecting cabin is connected with a concrete stirring machine; a certain mass of composite materials are regularly discharged according to the concrete mixing ratio and the stirring machine process parameters; meanwhile, through the feeding opening of the mixing and grinding cabin, nanometer materials and cement are respectively and regularly added according to the production requirement proportion, so that the continuous production operation with the concrete stirring machine can be realized.

The invention provides a preparation method of a carbon nanotube/ceramic matrix composite material, which comprises the following steps: S1, mixing a carbon nanotube, water, a dispersant and a pH regulator, and ultrasonic stirring to obtain a carbon nanotube suspension; S2, mixing and ball milling that carbon nanotube suspension, a ceramic powder, the water, the dispersant and the pH regulator toobtain a mixed suspension; S3, vacuum degassing that mixed suspension, injecting the mixture suspension body into a mold, water bath treatment and demoulding to obtain a wet blank of the composite ceramic material; S4, drying that wet blank of the composite ceramic material to obtain a dry blank of the composite ceramic material; S5, sintering that dry blank of the composite ceramic material to obtain the composite ceramic material; wherein the dispersant is a basic water-soluble polymer of isobutylene and maleic anhydride. By adopting the dispersant, the carbon nanotubes and the ceramic powder can be dispersed under the same conditions, and the carbon nanotubes are uniformly distributed in the ceramic blank, thereby preparing a composite material with excellent performance.

The invention relates to the technical field of metal surface strengthening modification, in particular to a metal mold surface treatment process. The method comprises the following steps: placing a cleaned metal mold in an ion chemical heat treatment furnace, and carrying out molybdenum infiltration treatment on the surface of the metal mold by adopting a glow discharge process; in the molybdenum infiltration process, bombarded particles are accelerated under the action of electric field force when passing through an accelerating electric field, so that the particles can impact the surface of the metal mold with larger impact force, and the molybdenum infiltration depth is increased; the mixed gas permeates into the surface layer of the metal mold under a high-temperature condition, and a thicker and more compact molybdenum sulfide coating is formed on the surface of the mold, so that the wear resistance of the mold is effectively improved; under the synergistic cooperation of the molybdenum sulfide coating, the chromium nitride coating, the titanium nitride coating and the protective coating, the wear resistance, corrosion resistance and fatigue resistance of the treated metal mold are greatly improved, the service life of the mold is prolonged, and the grade of the metal mold is effectively guaranteed.

The invention relates to a biodegradable high-performance particle material with ceramic texture and a preparation method thereof. The biodegradable high-performance particle material is prepared from biologically fermented PBS, a modified natural organic plant fiber material, oxidized modified high amylose, a composite plasticizer, a functional aid, a modifier and modified high-density minerals. Melting reaction and extrusion are performed at 55-160 DEG C by virtue of a double-stage serial screw granulating unit, and mixing, reacting, extruding, cooling, cutting, drying, sterilizing and packaging are carried out to obtain the particle material. Various daily supplies are produced by adopting universal equipment such as extrusion molding, plastic uptake or injection molding units and the like. The adopted raw materials are rich in source, the raw material cost is low, the process is simple, the production cost is low, and the prepared high-performance particle material has high strength and good antibacterial property and hydrophobic property, achieves the ceramic texture and can meet the increasing requirements of people for consumption upgrading of daily supplies.

The invention discloses an algae cultivation device capable of uniform light illumination and relates to the technical field of algae cultivation devices. The algae cultivation device capable of uniform light illumination includes a bottom plate, the top of the bottom plate is fixedly connected with a water tank and a power box successively from left to right, the water tank and the power box areglued together, a motor is fixedly connected with the portion, located on the rear side of the power box, of the right side of the top of the bottom plate, and the front end of an output shaft of themotor penetrates through the rear wall of the power box and extends to the inside of the power box. According to the algae cultivation device capable of uniform light illumination, a swing wheel is arranged to cooperate with two sleeve rods to pull two pistons to reciprocate, accordingly the water in the water tank can be pushed to flow back and forth, circulating flow can be formed, so that algaeis prevented from clustering, the water is always maintained in a flowing state, formation of dead water is avoided, cultivation of the algae is facilitated, and flowing water always keeps the algaein a moving state; lamp tubes are arranged inside the water body, accordingly the algae can be directly illuminated from the inside, and it can also be ensured that the overall algae is uniformly illuminated during the movement of the algae.

The invention provides clean and environment-friendly diesel oil. The clean and environment-friendly diesel oil comprises the following raw material components: 90-97 wt% of diesel oil; and 3 to 10 wt% of a liquid nanodetergent. According to the clean and environment-friendly diesel oil disclosed by the invention, a small amount of special bead liquid nano detergent is added into common diesel oil (generally used for national six-standard diesel oil in market gas stations) to improve the overall performance of a diesel oil product, and the diesel oil product does not contain harmful elements (the product does not contain forbidden components such as aldehyde and ketone, and does not contain heavy metals such as sulfur, nitrogen and the like); clean diesel oil is formed from a pure petroleum-based physical method product additive (a non-chemical method), and the effects of improving efficiency, saving oil, cleaning carbon and reducing emission are achieved by changing the physical performance of the fuel oil; the oil quality is greatly improved, and the cetane number of the oil is obviously increased; the oil sensitivity is good, the engine resonance phenomenon is eliminated, kinetic energy output is stable, and oil consumption is reduced; and sufficient combustion of oil in the engine is realized, so that emission of automobile exhaust pollutants is reduced.

The invention discloses a preparation method of a high-performance asphalt mixture. The preparation method comprises the following steps: S1, setting the heating temperature of a stirring bin to be 180 DEG C; s2, putting a screened coarse and a fine aggregate in and stirring for 25-30 seconds, wherein the stirring rotating speed in the stirring process is 35 +/-0.5 r/min, and the vibration frequency is 40 +/-0.5 Hz; s3, adding asphalt, stirring for 25-30 seconds, wherein the stirring rotating speed in the stirring process is 35 +/-0.5 r/min, and the vibration frequency is 40 +/-0.5 Hz; s4, adding mineral powder, stirring for 25-30 seconds, wherein the stirring rotating speed in the stirring process is 35 +/-0.5 r/min, and the vibration frequency is 40 +/-0.5 Hz; and S5, discharging and preserving heat for later use. According to the preparation method disclosed by the invention, the asphalt can be fully utilized in the asphalt mixture, the loss of the asphalt mixture is reduced, and meanwhile, the pavement performance of the asphalt mixture can be improved.