39results about How to "Sufficiently hydrophilic" patented technology

The invention relates to a self-cleaning fluorosilicone-modified acrylic acid cathode electrophoresis paint and a preparation method thereof. The paint is prepared from a fluorosilicone-modified acrylic acid emulsion and a nano silicon dioxide modified color paste in a ratio of 9:1, wherein the fluorosilicone-modified acrylic acid emulsion is prepared by stirring a semiclosed aliphatic isocyanate-modified fluorosilicone-containing cationic acrylic resin, a neutralizer and deionized water at high speed; and the nano titanium dioxide powder modified color paste is prepared by grinding a semiclosed aliphatic isocyanate-modified fluorosilicone-containing cationic acrylic resin, a surfactant and deionized water at high speed in a grinding tank. The paint provided by the invention has the advantages of high self stability and high tank liquor stability; and after the electrophoretic coating, the coating has the advantages of flat appearance, favorable mechanical properties, excellent acid and alkali resistance, high hydrophobicity and favorable pollution resistance (at most 10%), and the contact angle between the coating film surface and water can reach 130 degrees.

A method for using heavy metal mild pollution spirulina to extract phycocyanin, and using its algal residue as principal substrate to adsorb and remove lead, arsenic and cadmium in the water, pertains to the field of environmental biotechnology. The method can be widely used in innocent treatment of mild heavy metal pollution spirulina without accessing market standards in industrial production. The inventive method has main features the method adopts the features of mild heavy metal pollution that it only stick on cell walls, uses a improved purification method to obtain spirulina further processed product phycocyanin that conforms to safety criterion and has higher economic value, wherein, the accompanying diagram is a mass spectrogram of the extracted phycocyanin; and fixs the algal residues, for preparing biological adsorbent for obtaining lead, arsenic, cadmium and other heavy metals.

The invention relates to electrophoretic paint with high weather resistance and better spring coverage and a preparation method thereof. The electrophoretic paint is prepared by high weather resistance acrylic acid modified emulsion and weather-resistant color paste according to the ratio of 8:1, the high weather resistance acrylic acid modified emulsion is obtained by reacting 33-39 parts of epoxy grafted fluoride cation acrylic modified resin, 2-3 parts of microgel, 14-16 parts of sealing, 0.8-1 part of neutralizer and 44-52.2 parts of deionized water; the weather-resistant color paste is prepared by mixing and grinding 15-18 parts of acrylic acid grinding resin, 1-2 parts of surfactant, 42-50 parts of deionized water and 34-38 parts of pigment filler. According to the painting, the coating appearance is flat and bright, the yellowing resistance is good, and the coating has excellent mechanical property, bath stability, weather resistance, corrosion resistance and spring coverage.

The invention relates to a multipurpose high weather resistant acrylic acid electrophoretic paint and a preparation method thereof. The paint comprises two components, and is produced from high weather resistant acrylic acid modified emulsion and weather resistant color paste at a ratio of 8:1. The high weather resistant acrylic acid modified emulsion comprises following ingredients, by weight: 33 to 39 portions of fluorine-containing cationic acrylic acid modified resin, 14 to 16 portions of blocked aliphatic isocyanate curing agent, 0.8 to 1 portion of a neutralizer and 44 to 52.2 portions of deionized water. The weather resistant color paste comprises following ingredients, by weight: 15 to 18 portions of acrylic acid grinding resin, 1 to 2 portions of a surfactant, 42 to 50 portions of deionized water and 34 to 38 portions of a pigment filler. Fineness of the weather resistant color paste is 15um or less. The paint of the invention is suitable for colorized, white and grey systems. Appearance of coatings is flat, smooth and bright after one time of electrophoretic painting. Yellowing resistance, mechanical properties, coating liquid stability, acid resistance, alkali resistance and weather resistance of the coatings are excellent.

The invention discloses a Mo0.5W0.5S2 nanotile and graphene composite nanomaterial and a preparation method thereof. The Mo0.5W0.5S2 nanotile and graphene composite nanomaterial is formed by compounding a Mo0.5W0.5S2 nanotile with few layers and graphene, wherein the mass ratio of the Mo0.5W0.5S2 nanotile to graphene ranges from 1 to 1-1 to 4. The preparation method comprises the following steps of firstly, ultrasonically dispersing graphene oxide into deionized water; then, adding a gemini surfactant, and sufficiently stirring; next, sequentially adding L-cysteine, ammonium thiomolybdate and ammonium thiotungstate, and sufficiently stirring to dissolve L-cysteine, ammonium thiomolybdate and ammonium thiotungstate; and transferring the mixed dispersion system into a hydrothermal reaction kettle to carry out hydrothermal reaction at the temperature of 230-250 DEG C for 20-24h, then, naturally cooling to the room temperature, centrifuging to collect a solid product, sufficiently washing with deionized water, drying, and finally, carrying out heat treatment at a nitrogen and hydrogen mixed atmosphere to obtain the Mo0.5W0.5S2 nanotile and graphene composite nanomaterial. The method disclosed by the invention has the characteristics of simplicity and convenience; in addition, no organic solvent is needed to be consumed. The prepared composite nanomaterial is widely applied as a lithium ion battery electrode material and an electrocatalytic material.

The invention discloses a Mo0.5W0.5S2 nano-tile/graphene electrochemical sodium storage composite electrode and a preparation method thereof, wherein an electrochemical sodium storage active substance is a Mo0.5W0.5S2 nano-tile and graphene composite nanomaterial; the ratio of the amount of substance of Mo0.5W0.5S2 nano-tile to graphene in the composite nanomaterial is 1: 2; the Mo0.5W0.5S2 nano-tile has few layers and averagely has 3-5 layers; the composite electrode comprises the following components by weight percent: 80% of the Mo0.5W0.5S2 nano-tile/graphene composite nanomaterial, 10% of conductive acetylene black, 5% of carboxymethyl cellulose and 5% of polyvinylidene fluoride. The preparation method comprises the steps of firstly, preparing the Mo0.5W0.5S2 nano-tile/graphene composite nanomaterial, mixing the obtained composite nanomaterial with the acetylene black and the polyvinylidene fluoride to prepare paste, coating a copper foil with the paste, and rolling to obtain the electrochemical sodium storage composite electrode. The electrochemical sodium storage composite electrode has the high electrochemical sodium storage capacity.

The invention discloses a geniposide-rich hydrophilic molecularly imprinted polymer, a preparation method and application, and belongs to the technical field of separation. Template geniposide, an alkenyl glucoside functional monomer, a cross-linking agent, an initiator and an pore-forming agent are added in an aqueous solvent system, the alkenyl glucoside functional monomer and the template molecule form a non-covalent template-monomer complex through invertible self-assembly, the template geniposide is removed, and the geniposide-rich hydrophilic molecularly imprinted polymer is obtained. The alkenyl glucoside functional monomer is used for the first time to prepare the geniposide molecularly imprinted polymer in the water phase; compared with a traditional molecularly imprinted polymer prepared from a liposoluble functional monomer, the polymer prepared in the water phase has good hydrophilia, and has better adsorption performance in a water medium.

The invention discloses an electrochemical sodium storage composite electrode with high capacity and cycle stability and a preparation method. The electrochemical sodium storage active substance is a MoS2 nano tile/graphene composite nano material; the substance amount ratio of the MoS2 nano tile to graphene in the composite nano material is (1 to 1)-(1 to 13); the MoS2 nano tile is of a few-layer layered structure, and the average layer number is 4; the composite electrode comprises the following components by weight percent: 80% of MoS2 nano tile/graphene composite nano material, 10% of acetylene black, 5% of carboxymethyl cellulose and 5% of polyvinylidene fluoride. The preparation method comprises the following steps: preparing a MoS2 nano tile/graphene composite nano material, and blending the MoS2 nano tile/graphene composite nano material with acetylene black and polyvinylidene fluoride to obtain a paste; smearing the paste on a copper foil serving as a current collector; and performing vacuum drying and rolling to obtain the electrochemical sodium storage composite electrode. The MoS2 nano tile/graphene electrochemical sodium storage composite electrode disclosed by the invention has high reversible sodium storage capacity and wide application prospect.

The invention discloses a Mo0.5W0.5S2 nano tile/graphene electrochemical lithium storage composite electrode and a preparation method thereof. The preparation method comprises the steps as follows: graphene oxide is subjected to ultrasonic dispersion in deionized water; a dimeric surfactant is added firstly and then L-cysteine, ammonium thiomolybdate and ammonium thiotungstate are sequentially added with stirring; the obtained hybrid dispersion is transferred to a hydrothermal reaction kettle to have a hydrothermal reaction for 20-24 hours at the temperature of 230 DEG C and is naturally cooled, and solid products are collected centrifugally, washed by deionized water, dried and subjected to thermal treatment to prepare the Mo0.5W0.5S2 nano tile/graphene composite nano material; and then the Mo0.5W0.5S2 nano tile/graphene composite nano material, acetylene black and polyvinylidene fluoride are prepared into slurry, copper foil is coated with the slurry, and the electrode is obtained through rolling. The prepared Mo0.5W0.5S2 nano tile/graphene electrochemical lithium storage composite electrode has high electrochemical lithium storage capacity, excellent cycle performance and enhanced magnification characteristic, thereby having wide application prospect.

The invention discloses a WS2 nano tile/graphene electrochemical sodium storage composite electrode and a preparation method. The electrochemical sodium storage active substance is a WS2 nano tile/graphene composite nano material; the substance amount ratio of the WS2 nano tile to graphene in the composite material is (1 to 1)-(1 to 3); the WS2 nano tile has few layers, and the average layer number is 4; the composite electrode comprises the following components by weight percent: 80% of WS2 nano tile/graphene composite nano material, 10% of acetylene black, 5% of carboxymethyl cellulose and 50% of polyvinylidene fluoride. The preparation method comprises the following steps: preparing a WS2 nano tile/graphene composite nano material, and blending the WS2 nano tile/graphene composite nano material with acetylene black and polyvinylidene fluoride to obtain a paste; uniformly smearing the paste on a copper foil serving as a current collector; and performing vacuum drying and rolling to obtain the electrochemical sodium storage nano material composite electrode. The composite electrode disclosed by the invention has high reversible sodium storage capacity, excellent cycle performance and enhanced multiplying power characteristic.

The invention discloses a WS2 nanotile and graphene composite nanomaterial and a preparation method thereof. The composite nanomaterial is formed by compounding graphene and a WS2 nanotile with few layers and graphene, wherein the WS2 nanotile has 2-6 layers and averagely has 3-5 layers, and the mass ratio of the WS2 nanotile to the graphene ranges from 1 to 1-1 to 4. The preparation method comprises the following steps of firstly, ultrasonically dispersing graphene oxide into deionized water; then, adding a gemini surfactant, and sufficiently stirring; next, sequentially adding L-cysteine and ammonium thiotungstate, and sufficiently stirring to dissolve L-cysteine and ammonium thiotungstate; and transferring the mixed dispersion system into a hydrothermal reaction kettle to carry out hydrothermal reaction at the temperature of 230-250 DEG C for 20-24h, then, naturally cooling to the room temperature, centrifuging to collect a solid product, sufficiently washing with deionized water, drying, and finally, carrying out heat treatment to obtain the WS2 nanotile and graphene composite nanomaterial. The method disclosed by the invention is simple, convenient and free of consuming organic solvents.

The invention discloses a super-hydrophilic polymer microsphere and a preparation method thereof and super-hydrophilic fabric prepared by the preparation method. Polyethylene glycol and poly-(omega-caprolactone) block copolymer (PEG-b-PCL) are used as raw materials for preparing polymer solution which is used as spraying original solution, and the polymer microsphere is prepared by a static spraying method. Technological conditions, such as solvents and the solution concentration selected for preparing the spraying solution, a static spraying voltage and a receiving distance, are controlled, and the surface microtopography of the microsphere can be controlled, so the prepared microsphere has a micron-nano composite structure surface, the surface roughness is high, and the specific surfacearea is large, thereby the microsphere has a super-hydrophilic property. The provided microsphere preparation method is simple in process, strong in controllability, and suitable for the industrial production and the popularization and application.

The invention discloses a vegetable oil-based polyacrylate anionic emulsion as well as a preparation method and application thereof. The preparation method comprises the following steps: preparing a vegetable oil-based acrylate monomer, then uniformly mixing the vegetable oil-based acrylate monomer, other monomers, a chain transfer agent and a part of an initiator according to a formula to obtain a mixed solution, adding a part of the total amount of the mixed solution into a preheated solvent and reacting for a period of time; dropwise adding the rest of the mixed solution into a reaction system, carrying out a heat preservation reaction, then, adding the rest of the initiator into the reaction system, carrying out a heat preservation reaction, and then performing cooling; adding a sulfydryl monomer and a photoinitiator, and reacting in a photochemical reactor for 3-5 hours; and performing reduced pressure distillation to remove the solvent, then adding water, stirring and dispersing, and adding a neutralizer for neutralizing while dispersing, thereby obtaining the vegetable oil-based polyacrylate anionic emulsion. The natural renewable vegetable oil is used for replacing the traditional acrylate monomer to prepare the high-molecular polymer, so that the pressure of petrochemical resources is reduced, and the additional value of the vegetable oil is improved.

The invention discloses a preparation method of a diamond wire saw, and belongs to the preparation field of the diamond wire saw. An electrophoresis method is adopted to prepare the diamond wire saw; firstly, cathode electrophoresis resin emulsion is prepared; then, diamond is added in the prepared emulsion; an intermittent mixing manner is adopted to evenly suspend the diamond in the emulsion; a pretreated saw wire passes through the diamond-contained emulsion through an electrophoresis manner; the steps, such as pre-curing and deep curing, are performed for the saw wire; and finally, the diamond wire saw is prepared. The diamond wire saw, prepared by the method, has the advantages of small diamond usage, uniform sand loading, easy control of resin layer thickness and even resin layer, and is superior to a resin binder diamond wire saw in such aspects as abrasive grain holding force and wear resistance.

The invention discloses a WS2 nano-tile/graphene electrochemical magnesium storage composite electrode and a preparation method thereof, wherein an electrochemical magnesium storage active substance is a WS2 nano-tile and graphene composite nanomaterial; the ratio of the amount of substance of WS2 nano-tile to the graphene in the composite nanomaterial is (1: 1)-(1: 3); the WS2 nano-tile has few layers and averagely has 4 layers; the composite electrode comprises the following components by weight percent: 80% of the WS2 nano-tile/graphene composite nanomaterial, 10% of acetylene black, 5% of carboxymethyl cellulose and 5% of polyvinylidene fluoride. The preparation method comprises the steps of firstly, preparing the WS2 nano-tile/graphene composite nanomaterial, mixing the obtained composite nanomaterial with the acetylene black and the polyvinylidene fluoride to prepare paste, evenly coating foamy copper taken as a current collector with the paste, carrying out vacuum drying, and rolling to obtain the electrochemical magnesium storage composite electrode. The electrochemical magnesium storage composite electrode has the high reversible magnesium storage capacity, excellent cycle performance and improved multiplying power, and is wide in application prospect.

A colored viscoelastic agent for eye operation is prepared from a coloring substance and a non-color viscoelastic substance through physical and/or chemical mixing. It may have one color or the mixture of more colors chosen from white, red, blue, yellow, green, purple, and orange. It can improve the contrast and stereo feeling in visional field of doctor.