40results about How to "Has hydrophilic properties" patented technology

The invention discloses a multi-walled carbon nanotube-loaded nano ferrofferic oxide (Fe3O4) catalyst and a preparation method and an application thereof. In the multi-walled carbon nanotube-loaded nano ferrofferic oxide catalyst, ferroferric oxide is distributed on the surface of the outer wall of the multi-walled carbon nanotube. The preparation process is simple, the cost is low, and easiness in industrialized popularization is realized. In the synthesized catalyst, the crystallinity of the Fe3O4 nano particles is high, the particle size is controllable, and the particles distribution is narrow. The catalytic activity of the multi-walled carbon nanotube-loaded nano ferrofferic oxide (Fe3O4) catalyst multi-walled carbon nanotube-loaded nano ferrofferic oxide (Fe3O4) catalyst (Fe3O4-MWCNTs) is high and the Fe3O4-MWCNTs is easy for being repeatedly used through magnetic separation. The Fe3O4-MWCNTs which is prepared by the method can be used as peroxide mimic enzyme and can be used as catalyst for organic pollutants which are difficult to degrade and for organic synthesis.

The invention discloses a complexing agent for removing metal and ash in coal tar and a use method thereof. The problems that in the prior art, the use amount of a demetallization agent is large, the removal rate is low, and functional groups are limited are solved. The complexing agent is prepared from, by weight, 40%-70% of active agent, 15%-35% of synergist, 5%-15% of pitch colloid dispersant, 1%-10% of corrosion inhibitor and 5%-20% of auxiliary. The complexing agent for removing metal and ash in coal tar is suitable for the fields of coal tar pre-treatment and deep processing. By means of the complexing agent and the method, the use amount of the complexing agent is small, removal efficiency is high, the preparation process is simple, and the use method is convenient.

The invention relates to a bottom surface unified hydrophilic aluminum foil coating and a process thereof. Epoxy resin, acrylic resin and polyurethane resin serving as theme resins are pre-crosslinked to form a single-component coating material. When the coating is coated on an aluminum foil base material, the epoxy resin and the polyurethane undergo crosslinking reaction at 180 DEG C to form a layer of anticorrosion base paint; and the acrylic resin and the polyurethane undergo crosslinking curing at 230 DEG C to form a layer of hydrophilic surface paint; therefore, one-time coating and one-time baking are reduced, the production efficiency is improved, and equipment investment and energy consumption are reduced.

The invention provides an environmental-friendly graphene high-weather-resistance automobile aqueous coating and a preparation method thereof. The environmental-friendly graphene high-weather-resistance automobile aqueous coating comprises a component A and a component B, wherein the component A comprises the following components in parts by weight: 20-30 parts of aqueous carboxyl-containing polyurethane, 30-50 parts of an aqueous fluorocarbon resin, 8-12 parts of graphene, 6-10 parts of nano silicon dioxide, 1-2 parts of an organic silicon waterproof agent, 2-3 parts of unsaturated fatty acid, 4-8 parts of a composite surfactant, 1-1.5 parts of acetyl tributyl citrate, 3-5 parts of a silane coupling agent, 4-5 parts of active diluents, 2-3 parts of a defoaming agent, 20-40 parts of a pigment filler, 0.5-2 parts of an ultraviolet absorbent and 40-50 parts of water; the component B is an isocyanate curing agent; the weight ratio of the component A to the component B is (5-8):1. The invention further provides a preparation method of the environmental-friendly graphene high-weather-resistance automobile aqueous coating. Under synergetic effects of multiple aids, the aqueous automobilecoating has excellent mechanical strength and weather resistance.

The invention discloses a method for screening an aptamer via a high performance liquid chromatography, the aptamer and an application. The method for screening aptamers via high performance liquid chromatography comprises the following steps: screening a nucleic acid library of aptamers combined with docetaxel specificity from a random library RS36; screening the nucleic acid library by the high performance liquid chromatography to obtain the aptamer. In the high performance liquid chromatography, the stationary phase is an octadecyl bonded silica gel chromatographic column, the moving phase adopts water-acetonitrile gradient elution, the detection wavelength is 260nm and the detector is a diode array detector. The aptamer screened according to the high performance liquid chromatography has the advantages of being bonded with high specificity and high appetency of docetaxel, being free of immunogenicity, being capable of carrying out chemical synthesis and being good in biocompatibility, small in molecular weight, stable and easy to store, and can be applied to drug carriers, drug separation and purification, and preparation of docetaxel detection probes or target probes.

The invention discloses a high-moisture penetrability biodegradable composite material and a production method thereof. The existing high-moisture penetrability multi-layer composite material which has biodegradability and can be quickly degraded has the problems of high production cost and insufficient moisture penetrating amount. The high-moisture penetrability biodegradable composite material disclosed by the invention comprises a polyvinyl alcohol non-woven fabric and a base membrane which is coated with a polyvinyl alcohol water solution, wherein one surface of the polyvinyl alcohol non-woven fabric is hydrophobic and the other surface is hydrophilic; and the hydrophobic surface of the polyvinyl alcohol non-woven fabric is compounded with the base membrane which is coated with the polyvinyl alcohol water solution. The high-moisture penetrability biodegradable composite material disclosed by the invention has higher water vapor penetrability than the existing high-moisture penetrability polyvinyl alcohol protecting material; the hydrophilic surface of the polyvinyl alcohol non-woven fabric has a hydrophilic property, can absorb sweat and body fluid of a human body, and is very high in comfort. By the production method, the production efficiency is high, and the production cost is low.

The invention discloses a paper-plastic food packaging film and a preparation method thereof. The preparation method includes the steps that 1, ball milling is conducted on starch, silica gel, shellac and polyoxyethylene sorbitan fatty acid ester to obtain a mixture; 2, gelatinization treatment is conducted on the mixture and water to prepare a gelatinized product; 3, ultrasonic vibration is conducted on polyurethane, sulfate, borate, nano-magnesium oxide, water, ethanol, toluene and the gelatinized product to prepare adhesive; 4, the surface of paper is coated with the adhesive, then drying is conducted to form an adhesive layer, a high polymer material is subjected to hot pressing onto the adhesive layer to form a plastic layer, and the paper-plastic food packaging film is prepared. By means of the adhesive, the paper layer and the high polymer layer can be combined organically to prepare the paper-plastic food packaging film, the paper-plastic food packaging film has excellent stability, and meanwhile, the preparation method has the advantages that the process is simple and raw materials are easy to obtain.

The invention relates to the technical field of hydrophilic glass and in particular relates to a super-hydrophilic agent. The super-hydrophilic agent is characterized by being composed of the following components in percentage by weight: 0.1-0.45% of ZnO nanorod, 1.5-5% of carbon nano tube powder, 12-18% of N,N-dimethylformamide and the balance of dispersion, wherein the carbon nano tube powder is single-walled or multi-walled carbon nano tube powder; and the carbon nano tubes are attached to the surface of the ZnO nanorod. The invention further provides a preparation method of the super-hydrophilic agent and super-hydrophilic window glass provided with a super-hydrophilic coating. The super-hydrophilic agent disclosed by the invention has the advantages that the super-hydrophilic agent is high in visible light transmittance and capable of absorbing infrared and ultraviolet radiation and has excellent super-hydrophilic characteristics under non-illumination conditions.

The invention discloses an air purifying agent and a preparing method and application thereof, and belongs to the field of environmental governance. The air purifying agent is prepared from, by weight, 0.5-5 parts of humate, 0.1-1 part of silicate, 0.1-1 part of a surfactant, 0.01-3 parts of a disinfectant and 90-99 parts of water. The preparing method of the air purifying agent specifically comprises the steps of adding the humate, the silicate, the surfactant and the disinfectant with certain weight percentages into the water, continuously stirring and dissolving the materials, adjusting thepH value, and preparing a mixed solution. According to the air purifying agent and the preparing method and application thereof, fine particulate matter such as PM10 and PM2.5 and gaseous pollutantssuch as NOx, SO2 and VOCs in environment air can be effectively removed, and pathogenic microorganisms such as cocci, bacilli, saccharomycetes and mycete attached to the fine particulate matter can bekilled at the same time.

The invention relates to the technical field of concrete admixtures, particularly to an air-entraining type monomer, an air-entraining type water reducing agent and a preparation method of the air-entraining type water reducing agent, wherein the air-entraining type monomer is prepared from unsaturated acyl chloride and hydroxyl alkyl quaternary ammonium salt through an esterification reaction. The water reducing agent comprises an air-entraining polymer, which comprises a polymer or copolymer derived from a monomer, and the monomer comprises the air-entraining type monomer. According to the invention, the air-entraining type monomer and the air-entraining type water reducing agent prepared from the air-entraining type monomer provided by the invention can improve the dispersion retentivity of concrete and the foam stabilizing performance of bubbles in the concrete, and the introduced long-chain alkyl quaternary ammonium salt structure has antibacterial and anticorrosive effects, and can prevent the water reducing agent from mildewing so as to prolongs the storage time, the curling of water reducing agent molecules in an alkaline environment is reduced, the retention time of molecular stretching conformation of the water reducing agent is prolonged, and a wide market application prospect is achieved.

The invention relates to the technical field of hydrophilic glass, and particularly relates to a super-hydrophilic agent. The super-hydrophilic agent is characterize by comprising the following components: 0.08-0.33wt% of tin dioxide nano particles, 2-5wt% of carbon nano tube powder, 0.2-0.8wt% of polyvinyl alcohol, and the balance of a dispersion liquid; and the carbon nano tube powder is a powdery single-walled carbon nano tube or multi-walled carbon nano tube, and the tin dioxide nano particles adhere to the surface of the carbon nano tube. The invention also provides a preparation method for the super-hydrophilic agent and super-hydrophilic vehicle window glass which is provided with a super-hydrophilic coating formed by the super-hydrophilic agent. The super-hydrophilic agent has the advantages of being high in visible light transmittance, being capable of absorbing infrared radiation, and having good super-hydrophilic characteristics under non-illumination conditions.

The invention relates to the technical field of concrete admixtures, particularly to a polyhydroxy air-entraining delayed coagulation type water reducing agent and a preparation method thereof. The water reducing agent comprises a delayed coagulation type polymer, which comprises a polymer or copolymer obtained from monomers, wherein the monomers comprise 1) a delayed coagulation type monomer and an air-entraining type monomer, and 2) at least one of a vinyl ether macromonomer, unsaturated acid and unsaturated ester. By adopting the polyhydroxy air-entraining delayed coagulation type water reducing agent provided by the invention, hydration of cement can be delayed, and bubbles and stable bubbles are introduced into concrete, so that the effects of delayed coagulation and long-acting air entraining are achieved, and the polyhydroxy air-entraining delayed coagulation type water reducing agent has the effects of antibiosis, corrosion prevention, high dispersion and slump loss resistance, and has a wide market application prospect.

The invention relates to the technical field of pouring sealants, and discloses a low-density high-thermal-conductivity pouring sealant, which is prepared from the following raw materials in parts byweight: 156-185 parts of vinyl silicone oil; 3-14 parts of hydrogen-containing silicone oil; 2-10 parts of a surface modifier; 34-48 parts of low density powder; 20-31 parts of heat conduction powder;18-25 parts of flame retardant powder; 0.1-0.3 part of a platinum catalyst; and 18-29 parts of an auxiliary agent. The low-density powder is adopted as a reinforcing filler, so that the density of the pouring sealant can be reduced, when the pouring sealant is applied to electronic components, the proportion of the pouring sealant in the electronic components can be reduced, and wide applicationof the electronic components is guaranteed.

The invention relates to preparation of a high-silicon molecular sieve and low-silicon molecular sieve composite film, and discloses a preparation method of an MFI-LTA molecular sieve composite film with high anticorrosion performance and hydrophilicity. The preparation method comprises the following steps: preparing a seed crystal coating liquid; conducting actification and coating on the surface of a metal matrix; mixing TPAOH with water, adding an aluminum source, mixing for dissolution, adding a silicon source, and stirring sufficiently to obtain an MFI-LTA molecular sieve composite film forming mother liquid; putting the treated metal matrix into a reaction kettle, adding the MFI-LTA molecular sieve composite film forming mother liquid, and carrying out hydrothermal film formation to obtain the MFI-LTA molecular sieve composite film. The MFI-LTA molecular sieve composite film prepared according to the preparation method is excellent in both corrosion resistivity and hydrophilicity, and has a wide application prospect in the fields of metal corrosion protection and hydrophilic thin films. The preparation method is simple and convenient to operate, high in film forming repeatability, and excellent in performance, and is suitable for industrial scale production.

The invention relates to a porous material, a preparation method thereof and a film moisture permeability detection device using the porous material. The porous material is prepared from the following raw material components in percentage by weight: 0.95-1 wt% of electrospun polyimide nanofibers, 0.095-0.1 wt% of a dioxane aqueous solution, 0.45-0.5 wt% of ammonia water, 0.0095-0.01 wt% of polyamide acid fibers, and 98-98.5 wt% of a sodium dodecyl benzene sulfonate aqueous solution. The porous material is hydrophilic, can rapidly expand after absorbing water vapor, has excellent water absorption-dehydration cycle test performance stability, cannot be adhered to the inner wall of a detection box body, and ensures the accuracy of a moisture permeability detection result.

The invention relates to a film moisture permeability detection device and detection method. According to the film moisture permeability detection device, a moisture absorption layer made of a porous material is arranged in a second box body, and the porous material is hydrophilic, can rapidly expand after absorbing water vapor, has excellent water absorption-dehydration cycle test performance stability, cannot be adhered to the inner wall of the second box body, and ensures the accuracy of a moisture permeability detection result.