5518 results about "Hydrophobe" patented technology

The invention discloses a bio-based foam adsorption material as well as a preparation method and adsorption application thereof. The bio-based polymer is used as a foam skeleton, the adsorbent with a large specific surface area is added to further improve the foam adsorption capacity, the cross-linking agent and the reinforcing filler improve the overall strength of the foam, and the bio-based foam adsorption material with the high adsorption capacity is obtained. The bio-based foam disclosed by the invention is light in weight, controllable in hydrophilicity and hydrophobicity, and capable of separating and removing pollutants such as oil and organic dye. The foam has high adsorption capacity and good cyclic adsorption capacity, can be repeatedly used, is biodegradable, does not pollute the environment, can effectively adsorb dangerous chemicals existing in a water body, does not cause secondary pollution, and can be used for decontamination treatment of organic pollutants in industrial wastewater.

The invention provides a bismuth oxide-based epoxy resin composite material with a radiation shielding function as well as a preparation method and application of the bismuth oxide-based epoxy resin composite material. According to the preparation method disclosed by the invention, the bismuth oxide is subjected to surface modification, and after surface grafting modification by the coupling agent, the surface of the bismuth oxide is changed from strong hydrophilicity to strong hydrophobicity, so that the dispersity and interfacial compatibility of the bismuth oxide in an organic medium are remarkably improved. Secondly, preparing the composite material from the modified bismuth oxide, epoxy resin and a curing agent through a mechanical blending-vacuum defoaming combined process. On one hand, bismuth oxide, epoxy resin and a curing agent are uniformly mixed through mechanical blending; on the other hand, bubbles generated in the blending process are removed through vacuum negative pressure. The bismuth oxide in the composite material is uniformly distributed, no bubble exists in the body, and the surface is smooth and complete, so that the composite material has excellent gamma-ray shielding performance and good mechanical property. The process is simple, the yield is high, the product property is stable, and good economic benefits and environmental benefits are achieved.

The invention provides hydrophobic silica wet gel, hydrophobic silica aerogel, and methods that can be used to form an enhanced hydrophobic silica aerogel sheet having an advantageous combination of properties. Some embodiments of the invention provide a hydrophobic silica aerogel having advantageous properties, such as desirable performance on visible transmission, haze, or both.

The invention provides hydrophobic silica wet gel, hydrophobic silica aerogel, and methods that can be used to form an enhanced hydrophobic silica aerogel sheet having an advantageous combination of properties. Some embodiments of the invention provide a hydrophobic silica aerogel having advantageous properties, such as desirable performance on visible transmission, haze, or both.

A blood pump with a stator and rotor wherein the rotor is assembled by bonding the stator components with epoxy. The bonding surfaces of the rotor components are primed with a silane-based primer to improve adhesion between the primer and the rotor components by rendering such surfaces hydrophobic. A bonding surface of one of the stator yoke or the stator sleeve, or both, is treated with a primer that improves wettability of the bonding surface and improves bonding of the epoxy to the binding surface. The device has a bonding surface adhered to epoxy in which a primer was applied on such bonding surface prior to introducing epoxy onto the bonding surface. In addition to improved bond strength, hydrophobic surface would control moister ingress.

The invention discloses a method for preparing a high-stability W / O / W type multiple Pickering emulsion based on Janus particles, and belongs to the technical field of colloid and interface chemistry. According to the preparation method, the Janus particles with different hydrophilic and hydrophobic properties are prepared by using alkylsilane modified SiO2 with different chain lengths, the multiple emulsion is stabilized together, different types of Janus particles are adsorbed on different oil-water interfaces, and the interface activity and amphipathicity of the Janus particles are fully exerted to prepare the high-stability multiple emulsion. The multi-emulsion provided by the invention has excellent stability, keeps stable under the conditions of long-term storage, strong acid, strong alkali, high-concentration electrolyte and the like, and can effectively expand the practical application of the multi-emulsion.

The invention provides hydrophobic silica wet gel, hydrophobic silica aerogel, and methods that can be used to form an enhanced hydrophobic silica aerogel sheet having an advantageous combination of properties. Some embodiments of the invention provide a hydrophobic silica aerogel having advantageous properties, such as desirable performance on visible transmission, haze, or both.

The invention discloses a super-wear-resistant super-hydrophobic coating in the technical field of coatings, the super-wear-resistant super-hydrophobic coating comprises a primer and a finishing coat, the primer comprises solvent-free aliphatic polyether polyol resin, micro-powder particles, di-tetratoluene diisocynate, fumed silica nanoparticles and a primer magnetic attraction material; the finishing paint comprises hydrophobic nanoparticles, a diluent, a finishing paint magnetic attraction material and a hydrophobic treatment agent, the primer magnetic attraction material is ferrite powder, and the finishing paint magnetic attraction material is nickel powder. The preparation method comprises the following steps: 1, preparing the primer; secondly, primer is sprayed; step 3, roughening the primer; 4, finish paint is manufactured; step 5, spraying finish paint; and step 6, detecting the performance of the coating. The preparation method is scientific and reasonable, the uniformity and stability of the coating in the preparation and coating process are ensured by optimizing the composition of the coating material, improving the preparation process and introducing a magnetic suction device, and therefore the wear resistance, hydrophobicity and adhesive force of the coating are improved.

The invention relates to the technical field of CO2 capture and separation, and particularly discloses an anhydrous absorbent with a self-extraction function as well as application and a recovery method. The anhydrous absorbent is synergistically composed of a mixed amine absorption enhancer with specific composition and a hydrophobic organic solvent, wherein the mixed amine absorption enhancer comprises primary amine, secondary amine and tertiary amine. The mixed amine absorption accelerant combines the advantages of high reaction activity of primary amine, low regeneration heat of secondary amine and high absorption capacity and strong hydrophobicity of tertiary amine, so that the anhydrous absorbent shows excellent self-extraction capacity in the adsorption and desorption processes of acid gas, particularly, the anhydrous absorbent after absorbing the acid gas forms a less-water CO2 rich phase, and the CO2 rich phase has excellent self-extraction capacity. And due to the characteristic of less water, sensible heat and latent heat of vaporization required by a rich phase in a CO2 desorption stage are remarkably reduced, so that the problem that the energy consumption is too high in the regeneration process of the existing water-based absorbent is effectively solved.

The invention belongs to the technical field of paint coatings, and particularly relates to a hydrophobic heat-conducting self-repairing coating and a preparation method thereof. The preparation method of the hydrophobic heat-conducting self-repairing coating comprises the following steps: ultrasonically dispersing a heat-conducting filler and polyethylene glycol in an organic solvent, dropwise adding into a water-borne epoxy resin solution, and stirring to obtain a heat-conducting coating solution; the method comprises the following steps: dropwise adding a liquid A containing polysiloxane and a fluorine-containing monomer into a liquid B containing polyethylene glycol, stirring, carrying out centrifugal suction filtration, and drying to obtain the self-repairing microcapsule. Then adding the self-repairing microcapsules and silicon dioxide into the fluorine-containing polymer solution and / or the hydrophobic resin solution, and carrying out ultrasonic dispersion to prepare a self-repairing hydrophobic coating solution; the heat-conducting coating liquid and the self-repairing hydrophobic coating liquid are uniformly sprayed or spin-coated on the surface of a metal base material in sequence and then are subjected to UV curing, and the hydrophobic heat-conducting self-repairing coating is prepared. According to the method, the process and raw materials are simple, and the prepared coating has heat conduction and self-repairing performance and is excellent in anti-aging performance.

The application relates to the technical field of thermal insulation materials, and discloses an aerogel thermal insulation material and a preparation method thereof. A polysiloxane derivative containing nitrogen and phosphorus flame-retardant elements in a structure is prepared as a polymer crosslinking monomer, chemical crosslinking is carried out with corn starch, a crosslinked gel liquid is formed, and the corn starch-based aerogel thermal insulation material can be prepared through a freezing and drying process. The corn starch-based aerogel thermal insulation material prepared through the chemical crosslinking method has a uniform pore structure, has the characteristics of aerogel, and has the characteristics of good thermal insulation effect, high mechanical strength, strong hydrophobicity, excellent flame-retardant performance and the like by introducing the flame-retardant elements such as nitrogen, phosphorus and silicon and the hydrophobic Si-O bond into the aerogel structure, so that the further application of the aerogel thermal insulation material in building thermal insulation materials is facilitated.

The invention relates to a water-soluble carbon chain substance for adjusting transmembrane transport and fluidity of a cell membrane, and preparation and application thereof. The water-soluble carbon chain substance comprises a carbon chain originally having certain water solubility, and the structure of the water-soluble carbon chain substance comprises at least one or more hydrophobic carbon chain parts and one or more hydrophilic groups or residues; the hydrophobic carbon chain part is coupled with water-soluble molecules to form a high-hydrophilicity compound; the water-soluble carbon chain can be used for preventing and treating infections including viruses, bacteria and fungi; anti-aging; the occurrence of neurodegenerative diseases such as Alzheimer's disease is prevented and reduced; by reducing the non-specific phagocytosis of the nano-drug by cells, the effect of the nano-drug on a target focus is enhanced.

The invention discloses a preparation method and application of a hydrophobic core-shell structure catalyst, and the method comprises the following steps: adding a metal oxide and a surfactant into a first solvent to obtain a first dispersion liquid; adding an alkaline solution and a silicon source into the first dispersion liquid to obtain a first turbid liquid; calcining the first turbid liquid to obtain a porous core-shell material of silicon dioxide coated metal oxide; adding the porous core-shell material into a third solvent to obtain a second suspension; and adding an alkaline solution and a silane agent into the second turbid liquid to obtain the hydrophobic core-shell structure catalyst of the hydrophobic silicon dioxide coated metal oxide. The oxidation reaction of the inner core of the silicon dioxide layer does not destroy hydrophobic groups on the outer layer, so that the hydrophobic performance is maintained for a long time, organosilane is grafted on the surface of the silicon dioxide shell layer, inhibition of water vapor on the activity of the catalyst is reduced, and competitive adsorption of water vapor and reaction gas is prevented; the activity and the service life of the catalyst under high-temperature and high-humidity conditions are effectively improved.

The invention discloses an amphiphilic chitosan and plant nanocellulose composite coating fresh-keeping material, which is prepared from the following ingredients in percentage by mass: 0.5 to 20 percent of amphiphilic chitosan, 0.1 to 5.0 percent of plant nanocellulose, 0.5 to 10.0 percent of coalescing agents, 0.1 to 3.0 percent of antioxidants and the balance deionized water. Wherein the amphiphilic chitosan is prepared from chitosan, quaternary phosphonium salt and sorbic acid. Amphipathic chitosan of the material has hydrophilic groups such as amino and carboxyl and a sorbate hydrophobic group, has hydrophilicity and hydrophobicity at the same time, and is extremely easy to combine with substances such as a coalescing agent, plant nanocellulose and an antioxidant to form a stable polymeric membrane layer, so that the mechanical property after membrane formation is remarkably improved, and the material has a good application prospect. Meanwhile, the plant nanocellulose particles can be stably coated in the polymeric membrane material layer, so that the mechanical property of the material is enhanced, and lasting and efficient antibacterial and antioxidant effects are realized. The invention further discloses a preparation method and application of the amphiphilic chitosan and plant nanocellulose composite coating fresh-keeping material.

The invention relates to a covalent organic framework / melamine-based sponge composite material as well as a preparation method and application thereof. The covalent organic framework / melamine-based sponge composite material comprises melamine sponge and a covalent organic framework material, the covalent organic framework material is prepared by reacting an amino monomer with an aldehyde group monomer; the aldehyde group monomer is an aldehyde group monomer containing hydroxyl. The composite material based on the covalent organic framework / melamine sponge combines the excellent hydrophobicity of the covalent organic framework and the high porosity of the melamine sponge, so that the composite material has extremely high adsorption capacity on oil, repels moisture, has an excellent oil-water separation effect and can realize efficient oil-water separation.

The invention discloses a silicon dioxide reinforced high-hydrophobicity polyvinylidene fluoride membrane as well as a preparation method and application thereof, SiO2 nanoparticles are taken as a mechanical reinforcing agent and a structure regulator and are directly added into a membrane casting solution system, and solid-liquid phase separation is preliminarily induced on the surface of a primary membrane in combination with non-solvent spraying ethanol, so that the high-hydrophobicity PVDF membrane is successfully prepared. A unique multi-stage micro-nano structure consisting of mutually connected spherocrystals is constructed on the surface of the membrane, the hydrophobicity, aperture, porosity and mechanical property of the membrane are effectively improved, and the membrane shows excellent and stable separation performance in performance tests of seawater desalination and erythritol concentration, and has good application prospects in seawater desalination and erythritol concentration. The method shows huge application potential in the fields of wastewater treatment, food production and the like.

The invention discloses high-performance modified calcium carbonate and application thereof in a breathable film. The modified calcium carbonate is prepared by combining a three-element composite modification system composed of stearic acid, titanate and a silane coupling agent with a disc-nest mill three-stage gradient grinding process and antibacterial-hydrophobic dual-functionalization treatment of silver-loaded hydroxyapatite and a fluorinated modifier. The indexes of the prepared modified calcium carbonate are as follows: the median particle size (D50) is 1.8-2.2 mu m, the particle size (D97) of 97% particles is less than 6.5 mu m, the particles with the particle size of 1-5 mu m account for more than 60%, and the particles with the particle size of more than 10 mu m are less than 100 ppm; the content of calcium carbonate exceeds 97%, and the content of harmful impurities such as Fe is less than 200ppm; the whiteness is higher than 95; the oil absorption value is less than 12.5%, and the water content is less than 0.18%. When the composite material is applied to the breathable film in the medical field, the mechanical property, the antibacterial property and the hydrophobic property of the breathable film can be remarkably improved, the special requirements of the medical field on the breathable film are effectively met, and the composite material has good application prospects and industrial value.

The invention relates to the technical field of oil and gas field exploitation, and discloses a drag reducer for a multifunctional fracturing fluid and a preparation method thereof.The preparation method of the drag reducer for the multifunctional fracturing fluid comprises the steps that acrylic acid, acrylamide, 2-acrylamido-2-methylpropanesulfonic acid and modified itaconic acid are added into deionized water, stirring and mixing are conducted, and the drag reducer for the multifunctional fracturing fluid is obtained. Nitrogen is introduced for 30-40 min to remove oxygen, then azobis (isobutylamidine) hydrochloride is added, the mixture is stirred to react for 48-72 h at the temperature of 45-50 DEG C, and a polymer solution is obtained; and directly and uniformly mixing the polymer solution, the compatilizer and the modified nano silicon dioxide, and reacting in a magnetic stirrer at 60-70 DEG C for 1.5-2 hours to obtain the drag reducer for the multifunctional fracturing fluid. The drag reducer has a good drag reduction effect, and the hydrophobicity, the temperature resistance, the salt resistance and the shear resistance are improved.

The invention discloses a super-hydrophobic road ice-inhibiting coating based on a photothermal effect and nano modified particles and a preparation method of the super-hydrophobic road ice-inhibiting coating. The preparation method comprises the following steps: introducing silane modified nano silicon dioxide (SiO2) and titanium dioxide (TiO2) particles into a polyaniline solution, and preparing the composite super-hydrophobic powder through a chemical oxidation polymerization method. The preparation method comprises the following steps: firstly, modifying the surfaces of SiO2 and TiO2 nanoparticles by adopting a silane coupling agent, and endowing the SiO2 and TiO2 nanoparticles with low surface energy and hydrophobic property; and then adding the modified nano-particles into an aniline monomer solution, reacting with doped acid and an oxidizing agent, so that polyaniline molecules are subjected to in-situ polymerization on the surfaces of the particles, and the composite super-hydrophobic powder with a micro-nano structure is formed. The obtained composite material has excellent photothermal conversion performance and super-hydrophobic performance at the same time, and the efficient photothermal material heat absorption ice melting effect and the synergistic ice restraining effect of the photothermal material and the super-hydrophobic material can be achieved. Compared with a traditional ice-inhibiting coating, the coating disclosed by the invention shows stronger ice-resisting capability in a low-temperature and high-humidity environment, has good durability, mechanical stability and environmental protection property, and is suitable for the field of ice prevention and ice inhibition in cold regions such as roads, bridges, airport runways and the like.

The invention discloses biphase gel loaded with natural antioxidants as well as a preparation method and application of the biphase gel. The biphase gel is obtained by mixing oil gel and hydrogel in a mass ratio of (20: 80)-(80: 20) through a physical effect, wherein the hydrogel is composed of a water-soluble natural antioxidant and a polysaccharide aqueous solution; the oleogel is composed of an oleogel agent, a fat-soluble natural antioxidant, a small molecule emulsifier and edible oil. According to the present invention, the water-soluble nutrients are loaded in the hydrogel, and the fat-soluble nutrients are loaded in the oil gel to prepare different types of the two-phase gel nutrient delivery systems simultaneously loading the hydrophilic and hydrophobic natural antioxidants so as to effectively improve the steady-state protection effect and the bioavailability of the nutrients.

The invention belongs to the technical field of functional Pickering emulsion preparation, and particularly discloses a silk fibroin nanoparticle-stabilized biphase drug-loaded Pickering emulsion and an antibacterial application thereof. The curcumin-loaded silk fibroin nanoparticles Cur-SFNPs with uniform form and size are prepared by using an anti-solvent precipitation method. In order to improve the antibacterial effect of the Pickering emulsion, the Cur-SFNPs is utilized to stabilize the soybean oil loaded with resveratrol, and the oil-in-water type Pickering emulsion is prepared. The Pickering emulsion prepared by taking Cur-SFNPs as a stabilizer has the characteristics of small particle size, uniform distribution, storage stability, heating stability, freeze-thaw stability, food safety and environmental friendliness. And as a two-phase drug-loaded emulsion, two natural hydrophobic active drugs are loaded at the same time, so that the solubility and bioavailability of the emulsion can be enhanced, the loaded active substances play a synergistic antibacterial and antioxidant role, and the emulsion can be applied to food preservation.

The invention provides hydrophobic silica wet gel, hydrophobic silica aerogel, and methods that can be used to form an enhanced hydrophobic silica aerogel sheet having an advantageous combination of properties. Some embodiments of the invention provide a hydrophobic silica aerogel having advantageous properties, such as desirable performance on visible transmission, haze, or both.

The invention provides a high-hydrophobicity anti-pollution flashover coating and a preparation method thereof, and relates to the field of coatings. The silicone rubber composition is prepared from the following raw materials in parts by weight: 80 to 100 parts of hydroxyl-terminated polydimethylsiloxane; 5 to 15 parts of modified nano silicon dioxide; 10 to 30 parts of a composite self-repairing microcapsule; 10 to 25 parts of a flame retardant; 3-8 parts of a cross-linking agent; 0.5-2 parts of a catalyst; 1-5 parts of an accelerant; 40 to 100 parts of a solvent; the modified nano silicon dioxide is fumed silica subjected to surface treatment by a fluorine-containing silane coupling agent and a platinum catalyst; the capsule wall of the composite self-repairing microcapsule is a polylactic acid-glycolic acid copolymer, and the capsule core of the composite self-repairing microcapsule is a mixed solution of a hydroxyl-terminated polydimethylsiloxane oligomer and methyltris (methylethylketoximino) silane. The coating has excellent hydrophobicity, weather resistance and targeted repair function.

The invention provides a composite insulator with a cooling function and an embedded microcapsule hydrophobing agent and a preparation method of the composite insulator, and relates to the technical field of electric insulating materials. The composite insulator comprises an umbrella cover base material, the surface of the umbrella cover base material is provided with a cooling coating, and a microcapsule water repellent agent is embedded in the umbrella cover base material. The umbrella cover base material is silicone rubber or modified epoxy resin; the cooling coating is prepared from Al2O3 (at) TiO2 / PDA-BN, fluorocarbon resin, isopropanol, a dispersing agent and a flatting agent; the microcapsule water repellent agent is composed of a core layer and a shell layer, the core layer is made of fluorinated modified polystyrene / nano-silica microspheres, and the shell layer is made of polymer resin. The composite insulator has cooling and hydrophobic functions, the two functions are synergistic, the weather resistance of the insulator can be remarkably improved, the service life of the insulator in a severe environment is prolonged, and the defects that in the prior art, materials are fast in aging, poor in hydrophobic durability, single in function and the like are overcome.

The invention discloses bio-based polyurethane as well as a preparation method and application thereof, and belongs to the technical field of polyurethane. The bio-based polyurethane is prepared from bio-based silicon-based polyester polyol, diisocyanate and a bio-based chain extender, wherein the molar ratio of the bio-based silicon-based polyester polyol to the diisocyanate to the bio-based chain extender is 1.0: (3.0-5.0): (2.0-4.0); wherein the bio-based silicon-based polyester polyol is prepared by taking bio-based dibasic acid and single-ended dihydroxy siloxane as raw materials, and carrying out esterification reaction on the bio-based dibasic acid and the single-ended dihydroxy siloxane. In the bio-based polyurethane, siloxane antifouling groups are suspended on side chains of polyurethane macromolecules, so that the bio-based polyurethane is endowed with excellent antifouling and hydrophobic properties; the mechanical property of polyurethane is good, the compatibility of siloxane and polyurethane is improved, and the polyurethane slurry has good pigment dispersion stability. In general, the comprehensive performance of the bio-based polyurethane is excellent, and the bio-based polyurethane has important economic and application significance for obtaining high-quality polyurethane products.

The invention discloses quick-dry water-based ink and a preparation method thereof, and relates to the technical field of ink. The preparation method comprises the following steps: firstly, enabling 4, 6-bis (allyloxy)-n-butyl-1, 3, 5-thiazine-2-amine and vinyl sulfonamide to participate in a polymerization reaction of acrylic acid and butyl acrylate, and preparing 4, 6-bis (allyloxy)-n-butyl-1, 3, 5-thiazine-2-amine and vinyl sulfonamide through a two-step emulsion polymerization method; the core-shell structure modified polyester emulsion with 2, 5-thiazine-2-amine and vinyl sulfonamide as soft shells and acrylic acid and butyl acrylate as hard cores improves the wear resistance and durability of the ink. Then allyl polyether reacts with 2-(p-chlorphenyl) ethylene oxide, so that the drying time is shortened, and the wear resistance of the ink is improved; then through addition reaction of reactants, bis (2-ethoxyl) dimethyl ammonium chloride and hydrogen-containing silicone oil, the epoxy-amino-polyether combined modified silicone oil flatting agent is formed, the flatting agent has hydrophilicity and hydrophobicity, the drying speed is increased, and the wear-resistant effect is improved.

The invention relates to a Janus flexible super fabric capable of dynamically regulating and controlling infrared emissivity as well as a preparation method and application of the Janus flexible super fabric, and belongs to the technical field of high-performance fiber products. In order to solve the problem that the existing fabric capable of dynamically regulating and controlling the infrared emissivity cannot realize stepless wide-range infrared reflectivity dynamic regulation and control, the invention provides a Janus flexible super fabric capable of dynamically regulating and controlling the infrared emissivity, which has a sandwich structure, the hydrophobic nanofiber thin film layer, the low-emissivity coating and the hydrophilic nanofiber thin film layer are sequentially arranged from bottom to top. An anti-gravity unidirectional carrier transfer channel is constructed through surface binding energy difference of hydrophilic-hydrophobic Janus porous fabrics on two sides, a hydrophilic low-emissivity coating with ultralow infrared emissivity and the Janus porous fabrics form a sandwich structure, dielectric constants are adjusted through continuous and reversible change of carrier content, and accordingly, the infrared emission performance of the fabric is improved, and the infrared emission performance of the fabric is improved. Stepless regulation and control of humidity response self-adaptive ultra-wide range infrared emissivity at normal temperature are realized.

The invention discloses a surface-enhanced tryptophan modified nanofiltration membrane as well as a preparation method and application thereof. Belongs to the field of water treatment membrane preparation. The invention aims to solve the technical problems of non-uniform pore size distribution and surface hydrophobicity of the conventional nanofiltration membrane. The method comprises the following steps: adding tryptophan into a piperazine water-phase solution, and carrying out interfacial polymerization with oil-phase trimesoyl chloride to prepare the tryptophan modified nanofiltration membrane. According to the preparation method, the diffusion rate of the piperazine monomer can be adjusted in the interfacial polymerization process by utilizing a similar surfactant structure of tryptophan, meanwhile, the tryptophan has hydrophilicity and can improve the hydrophilicity of the surface of an active layer, and the prepared modified nanofiltration membrane is reduced in molecular weight cut-off, improved in surface hydrophilicity and good in water resistance. The retention rate of organic micro-pollutants is improved, and meanwhile, good anti-pollution performance is achieved.

The invention provides a production process of a fluoride-free washable waterproof fabric, and relates to the technical field of fabric production. The production process of the fluoride-free washable waterproof fabric comprises the following steps: selecting natural or synthetic fibers with high hydrophobicity as a fabric base cloth, desizing, boiling off and bleaching the fabric base cloth, and preshrinking, sizing, dyeing and softening the fabric base cloth at the same time; the preparation method comprises the following steps: mixing a fluoride-free waterproof agent and an auxiliary agent according to a specific ratio, adding deionized water, and uniformly stirring to form a waterproof agent emulsion; uniformly applying the waterproof agent emulsion to the surface of the fabric; the fabric is placed at the temperature of 100-120 DEG C to be pre-dried for 1-2 minutes; baking the pre-baked fabric at 150-180 DEG C for 2-3 minutes, so that the coating is fixed on the fabric to form a stable waterproof layer; and carrying out softening finishing and antistatic finishing on the baked fabric. The fluorine-free waterproof agent and the auxiliary agent are added, so that the problem of environmental pollution possibly caused by a traditional fluorine-containing waterproof agent is avoided, and the requirements of current environmental protection laws and regulations and sustainable development are met.

The invention relates to the technical field of nylon materials, in particular to hydrophobic high-strength transparent nylon as well as a preparation method and application thereof. According to the preparation method, 3, 3 '-dimethyl-4, 4-diaminodicyclohexylmethane (MACM), aromatic diamine and fatty diacid are taken as reaction monomers, and the novel transparent nylon is obtained by adjusting the dosage ratio of the monomers and further adjusting the preparation process (regulating and controlling the reaction process). The transparent nylon provided by the invention has the advantages of hydrophobicity, high strength and high light transmittance. The technical problem that existing nylon is high in water absorption rate is solved. The hydrophobic transparent nylon provided by the invention can be used under the condition of high humidity, and has higher safety and longer service life; therefore, the application field of the transparent nylon is expanded.