128 results about "Hydrophobic effect" patented technology

The invention provides a tropical fruit preservative film which is of a double-layer structure, the outer layer is a moisture-resistant antibacterial layer, and the inner layer is a water-absorbing antifogging antibacterial layer; and the water-absorbing anti-fog antibacterial layer also comprises a pH sensitive microcapsule. The outer layer is prepared from polyhydroxyalkanoate, a humidity sensitive type block copolymer and CuO / SiO2 antibacterial nano-enzyme; and the water-absorbing anti-fog antibacterial layer comprises polyhydroxyalkanoate, a humidity-sensitive block copolymer, hygroscopic zeolite, thymol, gallic acid and a pH-sensitive microcapsule. The preservative film has a certain hydrophobic effect, the humidity of a packaging microenvironment can be adjusted, breeding of putrefying bacteria can be inhibited, meanwhile, thymol and gallic acid form a slow-release antibacterial system, and tropical fruits keep good quality in the storage and transportation links through cooperation of all the components; besides, the pH sensitive microcapsules can respond to acidic substances generated by corruption in real time, help merchants to quickly sort deteriorated fruits, and provide a visual judgment basis for consumers at the same time.

The invention relates to the technical field of hydrophobic materials, in particular to a water-based acrylate emulsion based on structured hydrophobic particle modification as well as a preparation method and application of the water-based acrylate emulsion. The industrial problems that hydrophobic particles are prone to agglomeration and the hydrophobic effect is not lasting are solved. According to the emulsion, long-chain alkyl silane modified silicon dioxide serves as a structured hydrophobic phase, in-situ hybridization is carried out on the structured hydrophobic phase, a hydrophobic silane coupling agent, an acrylate monomer and the like through a semi-continuous emulsion polymerization method, and a stable micro-nano rough structure and a low-surface-energy surface are successfully constructed in a coating. According to the preparation method, a physical hydrophobic structure and chemical hydrophobic components are ingeniously combined, the prepared emulsion is good in stability, the water contact angle after film forming can reach 110 degrees or above, and the emulsion has excellent static hydrophobic and dynamic moisture-resistant performance and has wide application prospects in the fields of buildings, textiles, leather and the like.

The invention discloses an acidification blocking remover for an oil field and a preparation method of the acidification blocking remover. The acidification blocking remover comprises the following raw materials in parts by weight: 40-60 parts of hydrochloric acid, 10-20 parts of hydrofluoric acid, 5-10 parts of fluoboric acid, 1-3 parts of a modified stabilizer, 0.1-0.5 part of imidazoline and 20-30 parts of water. The modified stabilizer contains a quaternary ammonium salt structure which can be combined with negative charges on the clay to form a modified stabilizer coating on the surface of the clay, a polysiloxane molecular chain on the modified stabilizer can form a layer of hydrophobic film on the surface, and due to incompatibility between water molecules and hydrophobic groups, the hydrophobic film repels water groups, so that the clay can be degraded. Alkyl long chains on the outer side are combined with a hydrophobic membrane formed by polysiloxane molecules to form a second layer of hydrophobic membrane, then a bimolecular membrane is formed on the surface of the clay, the hydrophobic effect of the bimolecular membrane is far higher than that of a traditional monomolecular membrane, external moisture is effectively prevented from entering clay particles, and hydration expansion of the clay is inhibited.

The invention relates to the technical field of pharmaceutical preparations, in particular to a pure drug-based nano preparation constructed by super-solubilization of a natural polyphenol material and a biguanide drug and a preparation method of the pure drug-based nano preparation. The pure drug-based nano preparation constructed by super solubilization of the natural polyphenol material and the biguanide drug provided by the invention is composed of the natural polyphenol material and the biguanide drug, and a phenolic hydroxyl group of the natural polyphenol material and an amino group of the biguanide drug are self-assembled into the nano preparation through electrostatic interaction and hydrophilic and hydrophobic effects, namely the pure drug-based nano preparation. The mass ratio of the natural polyphenol material to the biguanide drug is 1: (0.0001-10000). The pure drug-based nano preparation provided by the invention has the advantages of high drug loading capacity, simple preparation process, greenness, high efficiency, safety and suitability for industrial application.

The invention discloses a super-hydrophobic self-cleaning dirt-repellent flannel fabric and a preparation method thereof, and relates to the technical field of flannel fabrics, and the preparation method comprises the following steps: preparing nano self-expanding fibers, first hydrophobic fibers and second hydrophobic fibers, taking the nano self-expanding fibers to coat the first hydrophobic fibers and the second hydrophobic fibers to obtain composite yarns, and preparing the super-hydrophobic self-cleaning dirt-repellent flannel fabric. Preparing nano self-expanding yarns, performing cross weaving on the yarns to obtain base cloth, and forming a fluff layer on the top of the base cloth. According to the flannel fabric, by arranging the yarn fibers with two super-hydrophobic degrees, the super-hydrophobic degree of the flannel fabric can be adjusted, when stains adhere to the surface of the flannel fabric, the second hydrophobic fibers leak out, the super-hydrophobicity of the flannel fabric at the stains is lower than the super-hydrophobicity of other positions, and when the surface of the fabric is flushed by water drops, the flannel fabric has the super-hydrophobic effect. The water drops tend to the position in the rolling process, so that more water drops easily pass through the stain position, the stain position can be effectively cleaned conveniently, and the self-cleaning capability of the fabric is realized.

The invention relates to a preparation method of a molecularly imprinted composite filler, and relates to the technical field of analytical chemistry and environmental monitoring technologies, the preparation method of the molecularly imprinted composite filler comprises the following steps: firstly dissolving template molecules and a first monomer, then adding a cross-linking agent and an initiator, carrying out deoxidation and water bath, and then centrifuging to obtain a template molecule solution; and eluting the precipitate with a flushing fluid, and drying to obtain the microspheres. And dissolving the ionic liquid, uniformly stirring with the obtained microspheres, and carrying out centrifugal separation, washing and vacuum drying to finally prepare the molecularly imprinted composite filler. Finally, the hydrophobic property of the molecularly imprinted composite filler is improved through modification of the ionic liquid and the second monomer. The method provided by the invention has excellent hydrophobic effect and enrichment capability on a target object.

This invention discloses a composite sludge dewatering agent and its preparation method. The dewatering agent is prepared by polymerizing modified monomers, a modified carrier, acrylamide, acryloyloxyethyltrimethylammonium chloride, and sodium methpropylene sulfonate to form polyacrylamide on the surface of the modified carrier. The surface of this dewatering agent contains both positive and negative charges. The positive charge can bind with negatively charged organic suspended matter, while the negative charge can accelerate the settling of inorganic suspended matter. The polyacrylamide on the surface contains organosilicon segments, which enhance the hydrophobic effect of the dewatering agent, achieving a water-repellent effect while adsorbing suspended matter. Furthermore, the surface contains an iron-based metal-organic framework, which, combined with the positive charge on the surface, can disrupt the stable structure of the extracellular polymeric material of the sludge, thereby dispersing organic matter and releasing internal moisture. Simultaneously, the organic matter can be encapsulated by the cyclodextrin cavities on the surface and the porous cavities inside, further improving the sludge dewatering effect.

The invention discloses a preparation method and application of a super-hydrophobic antifouling coating with a self-repairing function, and belongs to the technical field of modification of self-repairing super-hydrophobic coatings of textiles. The method comprises the following steps: mixing boric acid, ethanol and n-octadecyltriethoxysilane, heating and stirring to completely dissolve the boric acid to obtain a mixed solution; and dropwise adding water into the mixed solution while heating and stirring, and then standing and reacting to form a B-O-Si covalent bond, thereby obtaining the super-hydrophobic antifouling coating material. After the fabric is subjected to immersion treatment by the super-hydrophobic antifouling coating material, a good dynamic hydrophobic effect is shown, the original air permeability and moisture permeability of the fabric are hardly influenced, and compared with the original fabric, the air permeability is reduced by 1.9-6.6%, and the moisture permeability is reduced by 3.2-4.8%; after the super-hydrophobic antifouling coating fabric is worn and damaged by washing, the super-hydrophobic performance can be recovered under the condition of standing for 180 minutes or heating at 110 DEG C for 30 minutes.

The invention provides high-activity crataegus pinnatifida fruit vinegar and a preparation method thereof.The preparation method comprises the steps that crataegus pinnatifida fruits are juiced, then a composite chelating agent composed of polyglucuronic acid and monopotassium phosphate is added for chelating treatment, and a polysaccharide-metal ion cross-linked network is removed; then adding endo-beta-1, 4-glucanase to carry out linear polysaccharide directional enzymolysis, so that the viscosity of the fruit juice is obviously reduced; after the components are adjusted, double modified yeast beta-glucan microspheres are added, yeast is inoculated for alcoholic fermentation, the microspheres are subjected to double grafting modification through galactooligosaccharide and theaflavin, and active components in the crabapple can be directionally captured and stabilized through hydrophilic and hydrophobic effects respectively; after alcohol fermentation is finished, acetic bacteria are inoculated for acetic fermentation, and finally, filtering and sterilization are performed. According to the method disclosed by the invention, by virtue of a synergistic strategy of breaking a network firstly, then carrying out enzymolysis debonding and then carrying out microsphere loading, the fermentation mass transfer efficiency is effectively improved, and meanwhile, the retention rate of functional components such as polyphenol and saponin in the fruit vinegar is increased.

The invention discloses an environment-friendly mildewproof hydrophobic EVA composition and a preparation method thereof, and belongs to the technical field of plastics, the environment-friendly mildewproof hydrophobic EVA composition provided by the invention comprises the following components: 80-100 parts of an ethylene-vinyl acetate copolymer, 3-8 parts of a compatilizer, 10-20 parts of heat-resistant hydrophobic modified master batch, 10-30 parts of mica powder, 2-10 parts of antibacterial mildewproof master batch, and 0.1-2 parts of a lubricant, the heat-resistant hydrophobic modified master batch is polysiloxane grafted EVA (Ethylene Vinyl Acetate) of which the side chain contains fluorine and an annular hard segment. The EVA composition provided by the invention has good tensile strength, hydrophobic effect, antibacterial and mildew-proof performance and heat resistance, and is suitable for serving as a material such as a shower curtain serving in a high-temperature and high-humidity environment for a long time.

The invention belongs to the technical field of preparation of concrete through microorganisms, and particularly relates to a method for preparing a concrete super-hydrophobic surface through microorganisms. The invention provides a method for preparing a concrete super-hydrophobic surface by microorganisms, which comprises the following steps: smearing a cyanobacteria culture solution on the surface of concrete, and mixing to obtain cyanobacteria concrete; and the cyanobacteria concrete surface is subjected to smoothing treatment and mineralization treatment, and the concrete super-hydrophobic surface is obtained. The cyanobacteria disclosed by the invention are wide in distribution, easy to culture and extremely low in cost. The concrete is in contact with cyanobacteria, the cyanobacteria secretes a large amount of acid compounds, cement in the concrete is decomposed, the content of calcification compounds in the concrete is increased, a mineralization layer is conveniently formed on the surface of the concrete, and the hydrophobic effect is guaranteed. Meanwhile, the concrete surface is smoothed, so that the concrete surface is smooth, and the hydrophobic effect of the concrete is improved. And through mineralization treatment, drying of the surface of the concrete is accelerated, and a super-hydrophobic structure is formed.

The utility model discloses a warp knitting fabric hydrophobic finishing device, which relates to the fabric hydrophobic technical field, and comprises a cleaning frame, the front side and the rear side in the cleaning frame are both provided with wave-shaped grooves, the left side and the right side of the top of the cleaning frame are both fixedly provided with supporting blocks, the top of the supporting block on the left side is fixedly provided with a motor, and the top of the supporting block on the right side is fixedly provided with a motor. A threaded groove is formed in the side face of a rotating shaft of the motor, and a long groove is formed in the upper side of the inner wall of the cleaning frame. Warp knitting fabric penetrates through a through groove, a motor drives a threaded groove to rotate, meanwhile, a C-shaped plate is limited through a moving groove, the C-shaped plate drives a long frame, a T-shaped block and a cylinder to move leftwards, meanwhile, the cylinder is limited through a wavy groove when moving, the T-shaped block is driven to move up and down in the long frame, and when the cylinder makes contact with the warp knitting fabric, the T-shaped block is driven to move upwards and downwards. The warp-knitted fabric is repeatedly extruded and loosened, so that the fibers of the warp-knitted fabric are more fully adhered to the hydrophobic agent, and the hydrophobic effect of the warp-knitted fabric is further improved.

The application discloses an environment-friendly aerogel, a preparation process and application thereof, and has the advantages that the preparation process route is simple, waste paper can be recycled and utilized, and the aerogel which can be used as an air particulate matter adsorption material is generated, meanwhile, in the process route, an ultrasonic device is added to disperse and utilize cavitation effect, so that the porosity and compactness of the aerogel material can be effectively increased, the aerogel prepared by the process has excellent particulate matter adsorption effect, and after carbonization, carbonized aerogel with good mechanical properties can be obtained, has good lipophilic and hydrophobic effects, and can be used for treating oil stains in a water environment.

The application provides a chlorogenic acid-europium nanoparticle and a preparation method and application thereof, and belongs to the technical fields of nanobiological materials and biological medicine. The preparation method of the chlorogenic acid-europium nanoparticle comprises the following steps: slowly mixing chlorogenic acid (CGA) and europium ions in a solvent, and self-assembling the CGA-Eu (Eu 3+ ) nanoparticles through intermolecular coordination, electrostatic interaction and hydrophobic effect. The CGA itself has good biomedical application potential, the addition of the europium ions causes coordination with the CGA to enhance the stability of the CGA and enrich the functions of the CGA. The CGA-Eu nanoparticles have good stability under physiological conditions, and can conditionally release the CGA and Eu 3+ ions under pathological microenvironments, and have multiple effects of antioxidation, anti-inflammation, antibiosis and promotion of angiogenesis, and excellent biocompatibility. The nanoparticles obtained through the method of the application solve the problem of instability of the chlorogenic acid under conventional environments, and have wide application prospects in the fields of biological medicine, health products and cosmetics.

The invention discloses a method for testing competitive adsorption performance of porous carbon in a high-humidity environment. The method comprises the following steps: performing quantitative characterization on AC to obtain physical parameters of the AC; preparing modified porous carbon; the method comprises the following steps: constructing an atomic-scale model based on physical parameters of AC and XPS functional group data of the AC, and generating structural stereoscopic models of the AC and AC-MA through Materials Studio software; performing GCMC simulation, calculating an adsorption isotherm, adsorption energy and a radial distribution function, and analyzing a radial distribution function curve to research the interaction among porous carbon atoms; an experiment verifies that the prepared AC-MA is subjected to a fixed bed adsorption test, a penetration curve is detected through GC, the simulated adsorption amount and the actually measured adsorption amount are compared, and a required error lt is obtained; 5%; and finally performing performance evaluation. According to the method, the screening period is shortened from 2 weeks to 5 hours, and the design efficiency of a modification scheme is improved by 3 times; the alkyl chain can improve the performance through hydrophobic effect and enhanced toluene adsorption.

The invention relates to a filling system for sealing channeling of a chemical sealing layer and application of the filling system. The filling system for sealing channeling of the chemical sealing layer comprises the following raw material components: quartz sand, plant fiber particles, thermoplastic elastic particles and expansion particles, wherein the content of the quartz sand is 80%-86%, the content of the plant fiber particles is 3%-5%, the content of the thermoplastic elastic particles is 6%-10%, and the content of the expanded particles is 5%-12%. Under the interaction of the quartz sand, the plant fiber particles, the thermoplastic elastic particles and the expansion particles, close-space tetrahedron stacking with higher stacking efficiency and closer stacking is achieved. When a filling system for channeling sealing of a chemical sealing layer is injected, the stable state of a channeling sealing agent sol system is destroyed due to the hydrophobic effect of the hydrophobic ceramic particles, so that a dispersion medium is blocked on the filling system for channeling sealing of the chemical sealing layer, and suspended particles migrate downwards, are coagulated and are further dehydrated and thickened; and downward continuous invasion cannot be realized, so that a plugging target is realized.

The invention discloses a compound color fixing agent and a preparation method and application thereof, and belongs to the technical field of papermaking chemicals, the preparation method of the compound color fixing agent comprises the following steps: adding a bio-based polycation component into an acetic acid solution, heating and stirring to obtain a bio-based polycation stock solution; and adding amphiphilic polycyclodextrin and a surfactant into the bio-based polycation stock solution, and carrying out homogenization treatment to obtain the compound color fixing agent. The compound color fixing agent provided by the invention comprises bio-based polycations, amphiphilic polycyclodextrin and a surfactant, the amphiphilic polycyclodextrin with a hydrophobic cavity is connected with C3-C5 alkyl and quaternary ammonium salt groups, through a multi-component compounding design, by utilizing a synergistic effect of host-guest inclusion, electrostatic interaction and hydrophobic interaction, the color fixing agent has a good color fixing effect, and the color fixing agent has a good color fixing effect. And a coating with an interpenetrating network structure is constructed on the surface of the paper, so that fixation of the dye is realized.

The invention relates to the technical field of anti-corrosion coatings, and particularly provides a hydrophobic anti-corrosion coating and a preparation method thereof. Comprising the following raw materials: acrylate-styrene copolymer emulsion, chlorinated paraffin, fluorosilicone oil, waterborne epoxy resin emulsion, sodium methyl silicate, a coupling agent, an emulsifier, a thickening agent, a pH value regulator and a defoaming agent. The invention discloses a preparation method of the coating, which comprises the following steps: putting the acrylate-styrene copolymer emulsion into a reaction kettle, and heating; adding the coupling agent, uniformly stirring, continuously adding the emulsifier, and uniformly stirring; the preparation method comprises the following steps: adding sodium methyl silicate into a reaction kettle, then adding chlorinated paraffin, fluorosilicone oil and a water-borne epoxy resin emulsion, uniformly stirring, and then adding a pH value regulator; adding a thickening agent to adjust the viscosity; and after cooling, adding the defoaming agent and uniformly stirring. The coating disclosed by the invention not only has a very good hydrophobic effect, but also has excellent ultraviolet resistance and adhesive force.

The invention provides an alkyl gallate epoxy curing agent as well as a preparation method and application thereof. The alkyl gallate epoxy curing agent has good corrosion inhibition performance, and can improve the adhesion and antibacterial property of a coating; the coating also has a strong adhesion effect, and the formed coating has an excellent dry adhesion effect; in some cases, based on a good hydrophobic effect given by long-chain alkyl contained in the alkyl gallate epoxy hardener, the alkyl gallate epoxy hardener also has good adhesive force in a high-humidity environment, so that the alkyl gallate epoxy hardener is particularly suitable for being used on equipment in the humid environment such as a marine environment.

The invention discloses a preparation method of a waste bio-based modified material and application of the waste bio-based modified material in removal of micro-plastics in a water body. According to the method, agricultural waste rice hulls are used as raw materials, and a pore structure is enhanced through steam explosion; then carrying out quaternization modification by CHPTAC, and introducing a positive group on the surface of the material; furthermore, a polyphenol-metal network is constructed by utilizing a coordination reaction of tannic acid and Fe < 3 + >, so that synergistic modification with enhanced interaction of multiple interfaces is realized. The obtained composite material has multiple mechanisms of electrostatic adsorption, hydrogen bonds, hydrophobic interaction and the like, and micro-plastics of various types and sizes can be rapidly and efficiently removed in different pH values, salinity and ion systems. Experimental results show that the highest removal rate of the material to polystyrene microplastics of 100 nm can reach 96.8%, and excellent broad-spectrum adsorption performance is still kept under different environmental conditions. The method is simple and convenient in process, low in cost and environment-friendly, can realize resource utilization of agricultural wastes, and is suitable for efficient treatment of micro-plastic pollution in industrial wastewater treatment.

The invention discloses a lung cancer marker protein biosensor for regulating and controlling an SERS (Surface Enhanced Raman Scattering) probe array based on hydrophilic and hydrophobic effects as well as a preparation method and application of the lung cancer marker protein biosensor, the biosensor is fixed with magnetic beads of DNA (Deoxyribose Nucleic Acid) aptamers, and when the biosensor is specifically combined with a target protein, a section of triggering DNA is competitively released. The trigger DNA is used as a bridge and is connected with an SERS probe with a Raman reporter molecule and a DNA probe modified with a cholesterol hydrophobic group to form a sandwich compound. The compound is dropwise added to a substrate subjected to hydrophobization treatment, and the compound is subjected to self-assembly aggregation under the driving of hydrophilic and hydrophobic interaction, so that SERS probes are close to each other to form a hot spot, and the exponential amplification of a Raman signal is realized. The concentration of the target protein is ingeniously converted into a Raman signal capable of being detected at high sensitivity, accurate quantitative analysis of the target protein is achieved, and the method has important application value in the clinical detection field of early diagnosis of cancers and the like.

The invention relates to the technical field of oil and gas field exploitation chemistry, and discloses a water lock prevention and discharge aiding agent and a preparation method thereof.The preparation method comprises the following steps that ethylene glycol and fatty alcohol-polyoxyethylene ether are added into deionized water and stirred for 20-30 min, then fluorocarbon modified quaternary ammonium salt is added and stirred for 15-20 min, then modified nano-silicon dioxide is added into a system at the speed of 600-800 r / min, stirring is conducted for 20-30 min, and the water lock prevention and discharge aiding agent is obtained. And performing ultrasonic treatment for 20-40 minutes to obtain the water-lock-proof discharge aiding agent. The ultra-low surface energy characteristic of a perfluorohexyl ethyl chain is a physical basis for destroying a water-phase continuous phase and promoting flowback, hexadecylamine is grafted to the surface of nano-silica through a silane coupling agent to form a compact monomolecular alkyl chain hydrophobic layer, and the compact monomolecular alkyl chain hydrophobic layer and fluorocarbon modified quaternary ammonium salt are synergistically adsorbed on the surface of rock, so that efficient wetting reversal can be realized; the generated strong hydrophobic effect can effectively weaken capillary force and reduce water phase retention, and water blocking damage is inhibited from the source.

The present application relates to a kind of water-soluble fullerene and intermediate, preparation method and application, it is related to material field, including for the compound of hydrophilic treatment to fullerene, and including its water-soluble fullerene, water-soluble fullerene it includes fullerene and the polyhedral molecular cage that it is wrapped, the polyhedral molecular cage is formed by compound M1 (6-vinyl pyridyl hexaphenylbenzene) self-assembly.The present application is assembled by the hydrophobic effect of six molecules in water, forms a water-soluble C 60 Molecular perfectly wrapped in cavity cubic supramolecular cage (6M1@C 60 ).It significantly improves the water-solubility of C 60 Without changing the original structure of C 60 .

The application provides a silver nanowire-graphene-gold nanosphere composite SERS substrate and a preparation method thereof, and belongs to the technical field of organic contaminant detection. The substrate comprises a substrate, a silver nanowire layer coated on the substrate, and a gold nanosphere layer located at the uppermost layer; wherein a graphene film and mercaptan are coated between the silver nanowire layer and the gold nanosphere layer; the coverage of the silver nanowire layer on the substrate is 60%-80%; and the adhesion rate of the gold nanosphere layer to the graphene film is 50%-70%. In the SERS substrate provided by the application, graphene and mercaptan are added, PAHs in a solution are synergistically adsorbed through π-π stacking and hydrophobic effects, and polycyclic aromatic hydrocarbon molecules are effectively adsorbed to the surface of the SERS substrate, so that the detection effect of the polycyclic aromatic hydrocarbon molecules is further improved.

The application discloses a preparation method of fluorine-containing Fe3O4 nano-assemblies and application of the fluorine-containing Fe3O4 nano-assemblies in intracellular protein delivery, and the preparation method comprises the following steps: preparing Fe3O4 nanoparticles and small-molecule ligands containing fluorine alkyl chains respectively, and the two are combined through ligand exchange reaction to form fluorine-containing Fe3O4 nanoparticles; the fluorine-containing Fe3O4 nanoparticles can be self-assembled with proteins to form stable complexes through the hydrophobic effect and electrostatic effect of the fluorine alkyl chains. The fluorine-containing Fe3O4 assemblies provided by the application have universality as intracellular protein delivery carriers, can effectively deliver proteins with different isoelectric points and molecular weights to tumor cells, do not affect the biological activity of the cargo proteins, have small toxicity to cells, and have good biocompatibility. The protein delivery efficiency of the assemblies is further improved under the guidance of an external magnetic field, so that the killing effect of therapeutic proteins on tumor cells is enhanced, and the assemblies have application potential in the field of tumor treatment.

The invention discloses a preparation method and application of a cement-based compact and hydrophobic integrated material, and the preparation method comprises the following steps: firstly, directionally domesticating two bacillus Coriolis and pasteurization, and then putting the two bacillus Coriolis and pasteurization into a solution mixed with nutrient substances and a calcium source to prepare a repair solution; the preparation method comprises the following steps: culturing bacillus subtilis to form a biological membrane, carrying out ultraviolet radiation on the biological membrane, inactivating the bacillus subtilis while retaining the biological membrane, and finally culturing the inactivated bacillus subtilis liquid and the two domesticated bacillus liquid in a repair liquid to obtain the cement-based dense hydrophobic integrated material. The material is soaked in or sprayed on a cement-based test piece, and the compaction and hydrophobic integration of the cement-based material is realized by utilizing the successive recovery and the successive mineralization of the two microorganisms. According to the invention, the pore compactness and surface hydrophobic effect of the porous cement-based material are realized, so that the erosion of an erosion medium is greatly inhibited.

The invention discloses dipeptide and curcumin molecule co-assembled nanoparticles as well as a preparation method and application thereof, and relates to the technical field of biological medicines and nano materials. The nano-particles are prepared by taking cationic diphenylalanine, genipin GNP and curcumin as raw materials through co-assembly by a'one-pot method '. Under an alkaline condition, amino of CDP and active dialdehyde formed by ring opening of GNP are subjected to a Schiff base reaction, a covalent cross-linked rigid skeleton is constructed, curcumin is efficiently entrapped through a hydrophobic effect and a pi-pi accumulation effect, and the entrapment efficiency can reach 90%. The obtained nanoparticles are regularly spherical and uniform in particle size, have positive charges on the surface, and have excellent anti-acid stability, pH response release characteristics and remarkable anti-tumor activity. The preparation method disclosed by the invention is simple, mild in condition and high in biological safety, and the obtained nanoparticles have a wide application prospect in an oral hydrophobic antitumor drug delivery system.

An apparatus for generation and application of a hydrophobic effect in a bathroom fixture including an electrostatic generator, a liquid shielded object, and a bowl or basin. The electrostatic generator is configured to generate an electrostatic field configured to repel liquid. The liquid shielded object is positioned in relationship to the electrostatic generator. The bowl or basin is configured to collected liquid repelled away from the liquid shielded object by the electrostatic field.

The utility model discloses a condenser heat exchange sheet which comprises a heat exchange sheet body formed by pressing a front plate and a rear plate, and a medium channel arranged between the front plate and the rear plate is arranged in the heat exchange sheet body. One end of each medium channel is provided with a medium inlet formed in the side face of the heat exchange fin body, the other end of each medium channel is provided with a medium outlet formed in the side face of the heat exchange fin body, the bottom edge of the heat exchange fin body extends along a straight line, the bottom of the front plate is provided with a first turned edge curled forwards, and a first drainage groove is formed in the inner side of the first turned edge. The bottom of the rear plate is provided with a second flange curled backwards, and a second drainage groove is formed in the inner side of the second flange; and the bottom edge of the heat exchange sheet body obliquely extends along a straight line. The heat exchange sheet has the advantages of being simple in structure, good in water draining effect, complete in overall function and high in practicability.

The invention belongs to the technical field of water treatment, and particularly relates to a circulating water corrosion and scale inhibitor and a preparation method thereof. The corrosion and scale inhibitor is prepared by compounding N-dodecyl histidine amide grafted polyepoxysuccinic acid, modified chitosan, a glutaraldehyde solution and water, wherein the N-dodecyl histidine amide grafted polyepoxysuccinic acid achieves efficient corrosion inhibition through the strong coordination effect of histidine groups of the N-dodecyl histidine amide grafted polyepoxysuccinic acid and the metal surface and the hydrophobic effect of long-chain alkyl, especially, the N-dodecyl histidine amide grafted polyepoxysuccinic acid has a specific protection effect on copper alloy, and the polyepoxysuccinic acid plays a broad-spectrum scale inhibition role; the modified chitosan is chelated with calcium ions and disperses scale crystals through a multi-functional group; glutaraldehyde is used as a cross-linking agent, and a compact and firm three-dimensional protective film is formed on the metal surface; the corrosion and scale inhibitor has the advantages of no phosphorus, environment friendliness, biodegradability, multiple effects, synergistic enhancement of corrosion and scale inhibition performance and the like, and is suitable for an industrial circulating water system.