43results about How to "Self-assembled" patented technology

The invention discloses a waterborne antistatic coating. The waterborne antistatic coating comprises the following components in percent by weight: 1-30% of waterborne polyurethane, 1-30% of sulphonated graphene/PEDOT hybrid dispersion liquid, 0.1-5% of a crosslinking agent, 0.1-0.5% of a coupling agent and 25-80% of a thinning agent, wherein the sulphonated graphene/PEDOT hybrid dispersion liquid contains 1-5wt% of sulphonated graphene/PEDOT compound, the sulphonated graphene/PEDOT compound is mainly composed of sulphonated graphene the surface of which is polymerized with PEDOT in situ, and the mass ratio of sulphonated graphene to PEDOT is 1:(0.2-5). The invention also discloses a method for preparing the waterborne antistatic coating. The waterborne antistatic coating has the excellent characteristics of high light transmittance, high conductivity, good stability, good solvent resistance and high elongation, can be widely applied to antistatic coating of various plastic substrates, can be successively subjected to plastic moulding and still maintains good antistatic characteristics, can be used as an electronic package material, an electronic tray, a support and the like, and has an important commercial application prospect.

The invention relates to antistatic paint. The antistatic paint is prepared from modified poly(3, 4-ethylenedioxythiophene)-poly(styrenesulfonate), aromatic polyurethane acrylate, organic silicon resin, dimethylaminoethyl acrylate, a diluent, a leveling agent, graphene, magnesium chloride, nanometer silver powder and organic bentonite. The antistatic wall paint cured film has self-assembling characteristics, can be freely spread on a base, can be used for constructing a high efficiency conductive network, has high light transmittance, high conductivity and stability and has a wide application prospect.

The invention relates to a preparation method of tungsten trioxide powder. The preparation method comprises the following steps of adding a hydrochloric acid solution and/or a nitric acid solution into a sodium tungstate solution, regulating the PH (Potential of Hydrogen) of the sodium tungstate solution to be 2.7 to 2.8, and uniformly mixing the sodium tungstate solution and the hydrochloric acidsolution and/or the nitric acid solution, so as to obtain a precursor solution; sealing the precursor solution in a reaction kettle to carry out a reaction, controlling a reaction temperature to be 160 to 180 DEG C and a reaction time to be 36 to 48 hours, so as to obtain reaction liquid, and then cooling the reaction liquid to be a room temperature; separating out a solid substance from the cooled reaction liquid; washing and oven-drying the solid substance, so as to obtain the tungsten trioxide powder, wherein the shapes of 95 percent or above of tungsten trioxide micron particles in the tungsten trioxide powder are elliptical. According to the preparation method, the tungsten trioxide powder containing 95 percent or above of the elliptical tungsten trioxide micron particles is preparedfor the first time; the prepared tungsten trioxide powder, through a performance test, has higher catalytic degradation ability and excellent gas sensing performance and moreover, the method utilizeshydrothermal-method synthesis, and has the advantages of simple operation, lower cost and suitability for large-scale production.

The invention discloses a preparation method for a low-dielectric-constant fine silicon powder. The method comprises: employing a silicon powder with a certain ratio of spherical or angular pure silica or silica and with a certain scope of maximum particle size D100, performing wetting, dewatering, drying and calcining, and forming a new powder through self assembly after repulverizing of particles and granularity adjusting. The maximum particle size D100 of the new powder is 5-200 mu m, the particles of the new powder is formed by mutually supported or bonded particles of the original powder, and also a large amount of cavities are formed in particles during self assembly such as supporting or bonding, so that the dielectric constant of the new powder is reduced.

The invention relates to a closed low-voltage distribution box. The box comprises a box body and a box cover, the inner cavity of the box body is divided by sealing separator plates into a plurality of spaced units, each of the spaced units is provided with an independent box door, the box door is provided with an identification title one side of the box body is provided with a push type switch, the box cover is provided with shutter vents, and the box body and the box cover are respectively coated with an antistatic and anticorrosive coating. The distribution box has the advantages of no crust forming or hard lump phenomena on the surface, rapid curing and drying, environmental protection, no toxicity, no stickiness, no after-tack, scratch and wear resistance, antistatic property, and wide application prospect.

The present invention relates to a high-temperature-resistant corrosion-resistant power distribution box. The power distribution box comprises a box body and a door panel, wherein the door plate and the box body are hinged; the door panel is provided with a handle; a ventilation opening is formed on the lower part of the box body; a fan is arranged in the box body; and the power distribution box outside the surface is coated with a corrosion-resistant coating. No crust and hard lump phenomena occur on the surface of the power distribution box provided by the present invention, and the coating can be rapidly cured and dried, and is environmental-friendly and non-toxic, non-tacky, free of tack-return, anti-scratching, wear-resistant, high-temperature resistant and corrosion resistant, so that the power distribution box has a broad application prospect.

The invention provides a nano material modified multifunctional urea resin composite material and a preparation method thereof. The composite material is prepared from nano chitosan modified urea resin, urea resin microcapsule and nano silicon dioxide. The specific preparation method comprises the steps of adding the urea resin into methyl alcohol, adding sodium borohydride, performing low-temperature reaction to obtain hydroxyl modified urea resin, then mixing with a nano chitosan solution, dropwise adding sodium hydroxide and performing heating reaction to obtain the nano chitosan modified urea resin; degrading cellulose by a cellulase solution, ultrasonically breaking to obtain micro-nano cellulose, adding manganese dioxide, stirring under room temperature, then adding into a urea resin water solution and evenly stirring to obtain the urea resin microcapsule; mixing the two materials, adding the nano silicon dioxide and evenly mixing to obtain the nano material modified multifunctional urea resin composite material. The prepared urea resin composite material disclosed by the invention has good mechanical property, good water and heat resistance, low free formaldehyde, environmental friendliness and high energy.

The present invention relates to a novel distribution box. The distribution box comprises a case and a door panel, the door panel is hinged to the case, a handle is arranged on the door panel, a ventilation opening is formed in the lower part of the case, a fan is arranged inside the case, and corrosion-resistant coating coats the outer surface of the distribution box. The surface of the distribution box provided by the present invention does not have crust or hard blocks, can be rapidly cured and dried, and is environment-friendly, non-toxic and non-sticky, after-tack is avoided, and scratch resistance, wear resistance, high temperature resistance and corrosion resistance are good, so that the application prospect is wide.

The invention relates to a preparation technology of antistatic wall paint. The preparation technology comprises preparing modified poly(3, 4-ethylenedioxythiophene)-poly(styrenesulfonate), carrying out high speed shearing dispersion on the modified poly(3, 4-ethylenedioxythiophene)-poly(styrenesulfonate) through a high speed dispenser, orderly adding aromatic polyurethane acrylate, organic silicon resin, dimethylaminoethyl acrylate, a diluent, a leveling agent, graphene, magnesium chloride, nanometer silver powder and organic bentonite into the mixture and carrying out stirring mixing for 15-60min to obtain a uniform mixture. The antistatic wall paint cured film has self-assembling characteristics, can be freely spread on a base so that a high efficiency conductive network is constructed, has high light transmittance, high conductivity and stability and has a wide application prospect.

The invention belongs to the field of ion exchange membranes, and particularly relates to an anion exchange membrane of imidazolium covalently modified fluorine-containing resin and a preparation method of the anion exchange membrane. The method comprises the following steps: (1) irradiating fluorine-containing resin powder by using an ionizing radiation technology to obtain activated resin; (2) the activated resin and a monomer with an anion exchange function are subjected to a graft polymerization reaction, graft-modified fluorine-containing resin powder is obtained, and the monomer with the anion exchange function contains imidazolium; and (3) preparing the graft-modified fluorine-containing resin powder into the diaphragm material through a solution membrane casting method. According to the invention, a pre-radiation grafting technology is utilized to avoid the generation of a large amount of polyion liquid and a crosslinking body thereof in the irradiation process, so that imidazolium is fixed on a fluorine-containing resin molecular chain, and is uniformly distributed on a diaphragm through a solution membrane casting method to realize the conduction of sulfate radicals or hydrogen sulfate radicals in the electrolyte of the all-vanadium redox flow battery; and the vanadium resistance is improved.

The invention discloses a four-arm star-shaped polymer and a preparation method thereof. The polymer has a structure as shown in formula (I) which is described in the specification. In the formula (I), m is in a range of 40 to 150, and n is in a range of 100 to 200. The polymer is prepared through an ATRP reaction of a compound 1 with N-isopropylacrylamide, and the conversion rate of the raw materials during the reaction is improved. The four-arm star-shaped polymer of the invention has a low CMC value in an aqueous solution through the controlling of the polymerization degree of MMA and NIPAmin a block copolymer, indicating that a micelle formed by the four-arm star-shaped polymer has good stability.

The invention relates to a novel power distribution cabinet. The novel power distribution cabinet comprises a cabinet body and a cabinet cover. A lighting device is arranged in the cabinet body. One side of the cabinet cover is provided with a push type switch. The cabinet cover is provided with a viewing port. The viewing port is prepared from transparent plastic. The cabinet body and the cabinet cover are coated with antistatic paint. The novel power distribution cabinet does not produce skinning and hard blocks on the surface, can be fast cured and dried, is environmentally friendly and nontoxic, does not produce adhesion and after-adhesion, resists scratches, wear and static electricity and has a wide application prospect.