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

The invention discloses a novel water permeable material using desert sand as aggregate, and a preparation method and application of the novel water permeable material. The material is characterized by comprising the following ingredients in parts by weight: 70-95 parts of desert sand, 1-10 parts of aqueous polymer binder, 2-10 parts of inorganic binder and 0-3 parts of colorant. The preparation method of the novel water permeable material comprises the following steps of uniformly stirring the desert sand, the inorganic binder, the colorant and the aqueous polymer binder, filling into a mold and using a pressurizing band vibration molding process to prepare water permeable road bricks and water permeable plates. According to the invention, the raw desert sand is utilized, so that the waste is changed into wealth; compared with a resin type water permeable brick, the material is low in price and good in water permeability; environment-friendly binders which are free of toxin, smell and pollution are utilized; the material is wide in application field; when being used for preparing water permeable bricks which are paved on sidewalks and roads in parks, residential areas and the like, the material is beneficial for underground water circulation.

The invention relates to a preparation method of a one-way seepage fabric with a dry inside and a wet outside, one side of the fabric has the hydrophilic property, and the other side has the hydrophobic property. The preparation method comprises the following steps of: a, adding a hydrophilic aid in a staining solution while dying the fabric; b, drying; c, immersing a surface active agent on the fabric while molding; d, drying; e, distributing a hydrophobic aid and auxiliary aids, such as adhesives, acetic acid and the like, on the surface layer on one side of the fabric by using a coating technology; and f, drying. Before coating processing, the fabric is decationized so that anions and cations are balanced, or the number of the cations can almost be ignored. The fabric is a pure cotton fabric or has a cotton content of more than 50%. In the preparation method, the temperature for drying is between 80 DEG C and 170 DEG C. The one-way seepage fabric with the dry inside and the wet outside has the functions of one-way seepage and waterproofness, one side of the fabric is dry, and the other side is hydrophilic, which can diffuse water rapidly.

The invention discloses a bamboo grid net watering packing device for a cooling tower and a mounting method of the bamboo grid net watering packing device, belongs to the field of packing devices of cooling towers, and aims to solve the technical problem of improving the cooling effect by improving the shape and the size of net openings in a bamboo grid net. The bamboo grid net watering packing device for the cooling tower comprises the bamboo grid net, wherein the bamboo grid net mainly consists of bamboo grids which are mutually and vertically stacked; each bamboo grid comprises one or more groups of bamboo piece groups; each bamboo piece group mainly consists of a plurality of bamboo pieces, a plurality of sleeves, a plurality of connecting pieces and a plurality of fixing pieces. The mounting method of the bamboo grid net watering packing device for the cooling tower comprises the following steps of (1) paving a first layer of bamboo grids on the bottom layer of the cooling tower; (2) vertically stacking a second layer of the bamboo grids on the first layer of the bamboo grids; (3) vertically stacking a third layer of the bamboo grids on the second layer of the bamboo grids; and (4) according to the height requirement of the cooling tower, sequentially and vertically stacking a plurality of the bamboo grids on the third layer of the bamboo grids so as to form a bamboo grid net.

The invention provides a nanofiber composite fabric and a production method thereof. The production method comprises the following steps: step A, preparing an electrostatic spinning solution containing a hydrophilic agent; step B, adopting an electrostatic spinning process, and enabling an electrostatic spinning solution to form nanofibers with hydrophilic characteristics on a glued inner-layer base cloth through high-pressure jet flow to prepare middle cloth with a nanofiber membrane / inner-layer base cloth structure; and step C, laminating and compounding the middle cloth and glued outer-layer base cloth to prepare a nanofiber composite fabric with an outer-layer base cloth / nanofiber membrane / inner-layer base cloth composite structure. According to the method, the hydrophilic agent is added into the electrostatic spinning solution, so that the prepared nanofibers have the hydrophilic characteristic, sweat can be guided into the composite fabric, the defect that sweat cannot permeate through a traditional nanofiber composite fabric is overcome, and the wearing comfort is improved.

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 binder for a paper-plastic food packaging film and a preparation method thereof. The preparation method comprises 1) carrying out ball milling on starch, silica gel, shell-lac and polyoxyethylene sorbitan fatty acid ester to obtain a mixture, 2) carrying out gelatinization on the mixture and water to obtain a gelatinization product, and 3) carrying out ultrasonic concussion on polyurethane, a sulfate, a borate, nano-magnesium oxide, water, ethanol, toluene and the gelatinization product to obtain the binder for a paper-plastic food packaging film. The binder can bond a paper layer and a polymer layer so that a paper-plastic food packaging film is obtained. The paper-plastic food packaging film has excellent stability. The preparation method has the characteristics of simple processes and easy availability of raw materials.

The invention discloses a novel water permeable material using desert sand as aggregate, and a preparation method and application of the novel water permeable material. The material is characterized by comprising the following ingredients in parts by weight: 70-95 parts of desert sand, 1-10 parts of aqueous polymer binder, 2-10 parts of inorganic binder and 0-3 parts of colorant. The preparation method of the novel water permeable material comprises the following steps of uniformly stirring the desert sand, the inorganic binder, the colorant and the aqueous polymer binder, filling into a mold and using a pressurizing band vibration molding process to prepare water permeable road bricks and water permeable plates. According to the invention, the raw desert sand is utilized, so that the waste is changed into wealth; compared with a resin type water permeable brick, the material is low in price and good in water permeability; environment-friendly binders which are free of toxin, smell and pollution are utilized; the material is wide in application field; when being used for preparing water permeable bricks which are paved on sidewalks and roads in parks, residential areas and the like, the material is beneficial for underground water circulation.

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 present invention relates to the technical field of concrete admixtures, in particular to an air-entraining retarding water reducing agent and a preparation method thereof, wherein the water reducing agent comprises: a retarding polymer, and the retarding polymer comprises a A polymer or copolymer from a monomer, the monomer includes 1) a retarder monomer; and 2) at least one of ether macromonomer, unsaturated acid, and unsaturated ester. The air-entraining retarding type water reducing agent provided by the invention can delay the hydration of cement, and introduce air bubbles and stable air bubbles into the concrete, so as to achieve the effect of retarding setting and long-term air-entraining, and at the same time, it has antibacterial and anti-corrosion, high dispersion The effect of slump protection has a wide range of market application prospects.

The invention discloses a multifunctional separation sieve mesh preparation method, which comprises: S1, pre-treating, wherein a sieve mesh is placed and washed in a cleaning agent, rinsing is performed with ultrapure water, and drying is performed so as to be spare; S2, soaking the sieve mesh pretreated in the step S1 in a polymer coating solution; S3, hanging and drying the sieve mesh coated inthe step S2, and soaking in an acidic glutaraldehyde solution; S4, taking out the sieve mesh obtained in the step S3, drying, and soaking in an antibacterial surfactant solution; and S5, taking out the sieve mesh soaked in the step S4, and drying to obtain the super-hydrophilic and super-oleophobic sieve mesh. According to the invention, the prepared sieve mesh has super-hydrophilic and super-oleophobic performance, can effectively achieve oil-water separation, has multiple functional groups contained in the coating on the surface of the sieve mesh, has excellent oil-water separation performance, further has performances of heavy metal ion adsorbing, antibacterial property and the like, and has substantially expanded application range.

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 relates to the technical field of concrete admixtures, particularly to a cross-linked air-entraining type water reducing agent and a preparation method thereof. The water reducing agent comprises a cross-linked air-entraining type polymer, which comprises a polymer or a copolymer obtained from monomers, wherein the monomers comprise air-entraining type monomers and vinyl ether macromonomers. By adopting the cross-linked air-entraining type water reducing agent provided by the invention, bubbles can be introduced into concrete, the bubbles are stabilized, the dispersion retentivity of the concrete is improved, and a micro-cross-linked structure is introduced, so that a polymer structure is more stretched, a hydration film is thicker, greater steric hindrance effect, better dispersibility, dispersion retentivity and better intercalation resistance can be achieved, and a wide market application prospect is achieved.

The present invention relates to the technical field of concrete admixtures, in particular to a polyhydroxy air-entraining retarding water reducer and a preparation method thereof, wherein the water reducer comprises: a retarding polymer, the retarding polymer Comprising polymers or copolymers derived from monomers including 1) retarded monomers, air-entraining monomers; and 2) vinyl ether macromonomers, unsaturated acids, unsaturated esters at least one of . The polyhydroxy air-entraining retarding water reducer provided by the present invention can delay the hydration of cement, and introduce air bubbles and stable air bubbles into the concrete, so as to achieve the effect of retarding and long-term air-entraining, and at the same time, it has antibacterial and anti-corrosion properties. The effect of high dispersion and slump protection has broad market application prospects.

The invention relates to the technical field of concrete admixtures, in particular to a cross-linked air-entraining water-reducing agent and a preparation method thereof, wherein the water-reducing agent comprises: a cross-linked air-entraining polymer, the air-entraining polymer Contains polymers or copolymers derived from monomers including air-entraining monomers, vinyl ether macromonomers. By using the cross-linked air-entraining water reducing agent provided by the present invention, air bubbles can be introduced into the concrete and the air bubbles can be stabilized and the dispersion retention of the concrete can be improved. Not only that, the introduction of the micro-cross-linked structure makes the polymer structure more stretched and the hydration film thicker. , has greater steric hindrance and better dispersibility, dispersion retention and better anti-intercalation effect, and has broad market application prospects.