179 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 discloses a pH accurate response type water repellent agent for a cement-based material based on isoelectric point characteristics and a preparation method of the water repellent agent. The hydrophobic agent comprises a hydrophobic substance inner core dispersed in a dispersing agent, an amphoteric surfactant layer which is adsorbed on the surface of the inner core and has electric point characteristics, and an inorganic nanoparticle coating layer coating the amphoteric surfactant layer, and the hydrophobic agent is in an emulsion state. The preparation method comprises the following steps: adding the ampholytic surfactant with the electric point characteristic into the dispersing agent, uniformly stirring, then adding the hydrophobic substance, continuing stirring treatment, then adding the inorganic nanoparticles, and stirring and emulsifying to obtain the hydrophobic agent. According to the prepared hydrophobic agent, accurate release of hydrophobic substances in the later stage of cement hydration is achieved, interference of early release on cement hydration is avoided, and the stability and the long-term effect of the hydrophobic effect are remarkably improved.

The invention provides an environment-friendly polypropylene insulated power cable and a preparation process thereof, and belongs to the technical field of cable preparation. The preparation process comprises the following steps: preparing hydrophobic hybrid particles; preparing the hydrophobic anti-icing coating; double modification of hexagonal boron nitride; preparing an insulated cable material; and preparing the power cable. The cable prepared by the invention has good insulating property, the tensile strength can be improved, the service life of the cable can be prolonged, the cable has a remarkable super-hydrophobic effect after being sprayed with the hydrophobic anti-icing coating, the service time of the cable in a low-temperature and high-relative-humidity environment can be prolonged, icing can be avoided, and the use safety of the cable can be ensured.

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 relates to the technical field of coatings, and discloses a wear-resistant super-hydrophobic coating and a preparation method thereof. The wear-resistant super-hydrophobic coating prepared by the invention is prepared by taking the waterborne polyurethane emulsion as a main raw material, adding the hydrophobic modified organic silicon, the wear-resistant agent, the defoaming agent and other auxiliaries and stirring, and the coating not only has excellent adhesive force and wear resistance, but also has a super-hydrophobic effect; wherein the introduction of the hydrophobic modified organic silicon improves the bonding strength and wear resistance of the coating to a base material, and the introduction of the low-surface-energy fluorine element and the-Si-O-Si chain segment improves the hydrophobicity of the coating and endows the coating with super-hydrophobicity.

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 concrete admixtures, and particularly discloses a waterproof dense setting accelerator and a preparation method and application thereof, the waterproof dense setting accelerator comprises the following components by weight: 5-10 parts of a suspending agent, 50-250 parts of modified silica sol, 100-250 parts of an organic complex waterproof agent, 400-600 parts of a setting accelerator, and water; wherein the modified silica sol is obtained by modifying acidic silica sol with a modifier, and the modifier is a silane coupling agent; wherein the organic complexing waterproofing agent is a higher fatty acid aluminum complex. After the waterproof dense setting accelerator is doped into concrete, a large amount of air entraining of the concrete cannot be caused, microcracks of sprayed concrete can be filled, the compactness of the concrete is further improved, meanwhile, a hydrophobic effect is formed in the sprayed concrete and on the surface of the sprayed concrete, and the addition of the organic complexing waterproof agent can promote the condensation of the concrete, so that the waterproof performance of the concrete is improved. And the concrete can be quickly coagulated by matching with a coagulant.

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 discloses a rolling method for an antibacterial titanium alloy plate, relating to the technical field of titanium alloy materials. An antibacterial agent, modified chitosan and guar gum are mixed, glycerol is used as a plasticizer, and ammonium tripolyphosphate is used as a cross-linking agent to prepare an antibacterial coating, which is then coated on the surface of the titanium alloy. The alkylated chitosan has a long hydrophobic chain and is tightly cross-linked with the guar gum under the cross-linking action of sodium tripolyphosphate, thereby synergistically improving the hydrophobic effect of the coating and blocking the adhesion of moisture and bacteria. Silver nanoparticles are evenly dispersed on the surface of montmorillonite. Through the effective combination of the two antibacterial effects, the antibacterial effect of the coating is fully exerted, while also protecting the titanium alloy plate and improving its corrosion resistance.

The present invention discloses a photo-generated chiral radical molecule based on a triarylamine derivative with circularly polarized luminescence properties, and its preparation and application. It is prepared by subjecting tris(4-aminophenyl)amine to an amide condensation reaction with an aryl-containing chiral isocyanate or an aryl-containing chiral carboxylic acid. The triarylamine derivative molecule of the present invention has the characteristics of being easy to generate and detect chiral radicals. In addition to being detected by ultraviolet-visible absorption spectroscopy and CD spectroscopy, the generation of radicals can also be judged by color change. The planarization of the conformation of the triarylamine molecule itself after the generation of radicals makes it easy to undergo self-aggregation, thereby amplifying the chiral signal. The positive charge carried can also interact with other negatively charged molecules through charge interaction to generate chiral transfer or induce self-assembly. The amide bond and urea bond components contained in the molecule enable the regulation of hydrogen bond interaction and hydrophilic-hydrophobic effect by solvents to change the circularly polarized luminescence intensity and direction brought by its aromatic group part.

The invention provides hydrophobic leakproof spacer fluid for well cementation as well as a preparation method and application of the hydrophobic leakproof spacer fluid. The hydrophobic leakproof spacer fluid for well cementation comprises water, a weighting agent, walnut shells, fibers, a retarder, a hydrophobic macromonomer, a cross-linking agent and the like. A hydrophilic sulfonic acid group in the hydrophobic macromonomer has a complexing effect on calcium ions in mudstone, and an ester group as a hydrophobic group has a hydrophobic effect, so that a fixed arrangement that the hydrophilic sulfonic acid group faces the calcium ions and the hydrophobic group faces outwards is formed in a spacer fluid system. Wherein the hydrophobic groups are arranged to form a barrier layer for water, so that the invasion of water can be prevented, the effect of preventing water erosion is achieved, and the sedimentation of molecules such as a weighting agent can also be prevented. Tests show that the hydrophobic leakproof spacer fluid for well cementation has the pressure bearing capacity of 3.5-8 MPa when being tested by a hole type leakage stoppage instrument for seams of 1-3 mm, the pressure bearing capacity of a stratum is correspondingly improved by 3.5 MPa, and leakage in the well cementation process can be effectively avoided or reduced.

The invention discloses a sealing material for doors and windows, and relates to the technical field of sealing materials, the sealing material is composed of a biomass polyester elastomer, three-stage core-shell state nanometer SiO2, vulcanized rubber, a plasticizer, a dispersant and a functional auxiliary agent; wherein the three-stage shell-core state nano SiO2 comprises a mesoporous nano SiO2 core, perfluoropolyether silane, an interwoven network layer formed by C = N bonds and C18-QAS, the interwoven network layer and the C18-QAS are sequentially coated outside the mesoporous nano SiO2 core, and a fluorine chain layer formed by the perfluoropolyether silane not only has a hydrophobic effect, but also can form space matching with the interwoven network layer formed by the C = N bonds, so that stress concentration is avoided; meanwhile, the C = N bond is reversibly fractured or recombined under stress, so that energy between the nano-particles and the cross section of the matrix is dissipated, and the fracture performance is improved; the quaternary ammonium salt cations of C18-QAS and carboxyl contained in the middle shell generate electrostatic attraction, so that the polymerization direction of the outer shell is perpendicular to the surface of the inner core, a nanoscale groove structure is formed, and cross-interface permeation of water molecules is efficiently inhibited.

The invention discloses an attapulgite-multi-walled carbon nanotube purification material as well as a preparation method and application thereof. The attapulgite-multi-walled carbon nanotube is used as a purifying agent in tea pesticide detection, matrix interferents can be effectively removed, the surface area of the attapulgite-multi-walled carbon nanotube is large, and pigments can be adsorbed from a complex matrix through the electron interaction and hydrophobic interaction of the multi-walled carbon nanotube; the porous structure of the attapulgite can physically adsorb and capture macromolecular impurities (such as proteins and polysaccharides), and amido bonds on the interface of the attapulgite-multi-walled carbon nanotubes can also adsorb polar molecules (such as organic acids). The attapulgite-multi-walled carbon nanotube interface is connected through a chemical bond, so that the phase separation problem of a physical mixed adsorbent is avoided, the material is uniformly dispersed in a solvent and can be in rapid contact with a matrix, and the purification efficiency is improved. Compared with a traditional QuEChERS method, the method has the advantages that a single material attapulgite-multiwalled carbon nanotube is adopted as a purifying agent, matrix impurities can be efficiently removed without multi-material combination, and the method is small in dosage, high in adsorption capacity, simple in experimental operation and low in raw material cost.

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 relates to the technical field of plant essential oil, and discloses a natural plant essential oil composition, a preparation method and an application of the natural plant essential oil composition in a resuscitation inducing paste.The preparation method comprises the steps that a hydroxylated nitrogen-containing type silane coupling agent used for targeted adsorption of hydrogen-bond-containing acceptor or donor essential oil molecules is synthesized, the silane coupling agent further assists in adsorbing essential oil molecules containing hydrogen bond acceptors or donors and other essential oil molecules not containing hydrogen bond acceptors or donors in a non-specific manner through the hydrophobic effect of isobutylene and cyclohexyl; the surface and pore channels of nano mesoporous silica are modified by a hydroxylated nitrogen-containing silane coupling agent, and natural plant essential oil molecules with an anti-fatigue effect are loaded on the nano mesoporous silica based on hydrogen-bond interaction and / or hydrophobic interaction, so that the natural plant essential oil composition for clearing away heart-fire, inducing resuscitation, reducing pressure and relieving fatigue is obtained. The release time of natural plant essential oil molecules can be effectively prolonged, and the resuscitation inducing patch product prepared by taking the natural plant essential oil as an active component is relatively excellent in comprehensive performance and has practical application value.

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.