57 results about "PERFLUOROOCTYL TRIETHOXYSILANE" patented technology

The invention provides a super stain resistance ultraviolet curing coating. The super stain resistance ultraviolet curing coating comprises 15-40 parts of organic silicon modified urethane acrylate resin, 5-15 parts of fluorine-containing acrylate monomer, 0.5-5 parts of perfluorooctyl triethoxysilane, 5-15 parts of nanometer titania, 30-60 parts of thinner and 1-6 parts of photoinitiator in parts by weight. According to an ultraviolet light curing super-hydrophobic wear-resistant coating provided by the invention, an optimum super-hydrophobic effect of the coating is synergistically developed by coordinating the using amounts of organic silicon modified urethane acrylate resin, fluorine-containing acrylate monomer and nanometer titania.

The invention provides a hydrophobic paint with a water contact angle larger than 150 DEG, and a preparation method thereof. The preparation method comprises following steps: perfluorooctyltriethoxysilane is added into an alcohol solution, the pH value is adjusted to be lower than 7 with acetic acid, an obtained mixture is stirred; TiO2 is added, stirring, centrifugation, and drying are carried out so as to obtain fluoroalkyl silane hydrophobic modified TiO2 particles; the fluoroalkyl silane hydrophobic modified TiO2 particles, a dispersant, a modified resin, and a curing agent are added intoa xylene and ethyl acetate solution; an obtained mixed material is stirred, and the viscosity is adjusted so as to obtain the hydrophobic paint. The hydrophobic paint is stable in performance; introduction of inorganic particles is capable of improving paint layer wear resistance; and at the same time, introduction of low surface energy fluoroalkyl silane is capable of reducing paint surface tension further.

An interfacial solar membrane includes a substrate with a coating of polypyrrole disposed on a surface of the substrate. The coating of polypyrrole is formed by dipping the substrate in a solution of pyrrole monomer and iron(III) chloride. The interfacial solar membrane can include a coating to improve a hydrophobicity of the interfacial solar membrane, such as a coating of 1H,1H,2H-perfluorooctyltriethoxysilane. A method of using the interfacial solar membrane includes using the interfacial solar membrane to evaporate a fluid and condensing the evaporated fluid to remove an impurity from the fluid.

The invention relates to a modified waterborne epoxy resin/nano SiO2 composite hydrophobic coating and a preparation method. The hydrophobic coating takes amino silicone oil modified waterborne epoxyresin as a base material, and hydrophobic coatings with different hydrophobicity are prepared by simply adjusting the addition amount of fluorinated SiO2 nano powder. The preparation method comprisesfollowing three steps: 1) modifying pretreated nano SiO2 by using 1H,1H,2H,2H-perfluorooctyltriethoxysilane (FAS) to obtain fluorinated nano SiO2, 2) modifying waterborne epoxy resin by using amino silicone oil, and 3), compounding the fluorinated nano SiO2 with the modified waterborne epoxy resin to prepare the hydrophobic coating. According to the preparation method, a bifunctional silane coupling agent is used for modifying the nano SiO2, so that the treated base material has extremely low surface energy and extremely poor wettability. The amino silicon oil can enable the base material to have a certain degree of water resistance. The preparation method is simple in process, the coating has good hydrophobicity and lipophobicity, and the mechanical property is also improved.

The invention discloses hydrophobic, oleophobic and antibacterial coating for the surface of a textile material. The hydrophobic, oleophobic and antibacterial coating is prepared from the following components according to the mol ratio: the ratio of methyltriethoxysilane to perfluorooctyltriethoxysilane to modified nano silicon dioxide to water is (3 to 4) to (4 to 5) to (3 to 4) to (7 to 9); thehydrophobic, oleophobic and antibacterial coating further contains ethyl lauroyl arginate hydrochloride which accounts for 0.1 to 5 weight percent of the coating. According to the hydrophobic, oleophobic and antibacterial coating, a cloth material is washed through a specific pre-treatment technology and dip-coating of the coating is carried out; curing treatment is carried out by adopting a specific technology to obtain a hydrophobic, oleophobic and antibacterial coating layer. The hydrophobic, oleophobic and antibacterial coating layer provided by the invention has the advantages of good adhesion force, strong self-cleaning capability, strong hydrophobic and oleophobic performance, flame-retarding performance and antibacterial performance, is applicable to various cloth materials and hasan extremely strong self-protection capability; the surface of cloth has hydrophobic and oleophobic characteristics and the pollution-resisting property can be effectively enhanced; the hydrophobic,oleophobic and antibacterial coating has a relatively great application prospect.

The invention discloses a production method of a super-hydrophobic, moisture-resistant and scaling-resistant hybrid nanofiber composite membrane for membrane distillation. The production method comprises the following process steps: (1) preparing polyvinylidene fluoride (PVDF), zinc acetate, N, N-dimethylformamide and acetone according to a certain proportion, and uniformly stirring, (2) preparinga polyvinylidene fluoride/zinc acetate nanofiber membrane by utilizing an electrostatic spinning technology, (3) putting the polyvinylidene fluoride/zinc acetate nanofiber membrane into an oven for heat treatment to obtain a polyvinylidene fluoride/zinc oxide nanofiber membrane, (4) soaking the polyvinylidene fluoride/zinc oxide nano-fiber membrane with absolute ethyl alcohol, and then putting the soaked polyvinylidene fluoride/zinc oxide nano-fiber membrane into hexamethylenetetramine, zinc nitrate and an ammonia water solution for hydrothermal treatment to obtain a zinc oxide@polyvinylidenefluoride nano-fiber membrane, and (5) modifying the zinc oxide@polyvinylidene fluoride nanofiber membrane with 1H, 1H, 2H, 2H-perfluorooctyltriethoxysilane, so as to obtain the hybrid nanofiber composite membrane. The hybrid nano composite membrane prepared by the method has super-hydrophobicity, wetting resistance, scaling resistance, higher salt rejection rate and stable permeation flux, and isbeneficial to long-term stable operation.

The invention discloses a super-hydrophobic piezoresistive pressure sensor and a preparation method and application thereof. The preparation method comprises the steps of: adding glutaraldehyde into an acetic acid mixed solution of carboxylated multi-walled carbon nanotubes and chitosan for crosslinking for 0.5-2 hours, and performing freeze drying for 24-48 hours to obtain aerogel; immersing theobtained aerogel into a graphene oxide solution, then immersing the aerogel into an ascorbic acid solution, and performing reducing for 1-3h at a temperature of 60-80 DEG C; and finally, immersing theaerogel into an ethanol solution of perfluorooctyltriethoxysilane for 12-24 hours, taking out the aerogel, performing drying, and pasting electrodes at two ends, so as to obtain a super-hydrophobic piezoresistive pressure sensor. The static contact angle of water drops on the surface of the piezoresistive pressure sensor is larger than 150 degrees, a stable electric response signal is shown for external pressure stimulation, the sensor still keeps hydrophobic during compression, and the piezoresistive pressure sensor can be used for human motion detection.

The invention discloses wear-resisting emulsion paint. The wear-resisting emulsion paint is prepared from the following raw materials in parts by weight: 6-12 parts of lauryl sodium sulfate, 20-30 parts of styrene-acrylic emulsion, 4-8 parts of sodium hexametaphosphate, 11-22 parts of ammonium tungstate, 9-14 parts of polyvinyl alcohol, 5-15 parts of n-butyl alcohol, 20-50 parts of deionized water, 4-12 parts of aluminum polychloride, 8-17 parts of tetraethoxysilane, 10-15 parts of perfluorooctyl triethoxysilane, 7-14 parts of nanometer titanium dioxide, 6-12 parts of wollastonite, 5-15 parts of butyl acrylate, 3-11 parts of mica powder, and 5-15 parts of kaolin. The wear-resisting emulsion paint provided by the invention is non-toxic, environment-friendly, high in caking capability, free of toxic and side effects, high in abrasion resistance, capable of preventing sun burning and corrosion, and long-lasting in use.

The invention discloses a single-component epoxy-resin-based building sound insulation adhesive high in corrosion resistance and bonding strength. The building sound insulation adhesive is prepared from, by weight, 55-57 parts of E-44 epoxy resin, 18-21 parts of epoxy acrylate resin, 0.02-0.05 part of aluminum powder, 10-13 parts of straw ash, 1.4-1.6 parts of oxidized paraffin soap, 1-2 parts of zirconium oxide, 7-9 parts of acrylic emulsion, 0.1-0.3 part of tea saponin, 0.5-0.7 part of 1, 2, 3-benzotriazole, 6-7 parts of tetraethylenepentamine, 1.8-2.2 parts of perfluorooctyl triethoxysilane, 9-12 parts of sticky rice starch, 1.3-1.5 parts of soybean oil, 82-84 parts of mixed solvent and a proper amount of water. The epoxy resin modified with the epoxy acrylate resin serves as a base body, the modified straw ash is added, and other effective auxiliary agents are compounded; the obtained building sound insulation adhesive is good in corrosion resistance and high in bonding strength, impact strength and shearing strength; and after being applied through brushes uniformly, the building sound insulation adhesive does not crack or generate residues and is impermeable to water.

The invention discloses a wearproof antifouling two-component polyurethane paint and a preparation method thereof. The wearproof antifouling two-component polyurethane paint is prepared from the following raw materials by weight: 70-80 parts of polypropylene oxide glycol, 140-150 parts of hexamethylene diisocyanate, 4-6 parts of sorbitol, 2-4 parts of ethanolamine, 7-9 parts of acrylic ester, 5-6 parts of dipropylene glycol dibenzoate, and 2-3 parts of tert-butyl peroxypivalate, etc. According to the invention, polyurethane, acrylic ester and the like are adopted for cooperation to serve as film-forming matters, so that the wearproof antifouling two-component polyurethane paint has good film-forming characteristics. The added sub-white corundum fine powder, white graphite, aluminum titanate and other raw materials can be evenly and stably dispersed in the paint under the action of polypropylene glycol and sodium methylene dinaphthalene sulfonate to enhance the wear resistance of the paint. The added dipropylene glycol dibenzoate, perfluorooctyl triethoxysilane and other raw materials can improve the antifouling and water resistant performance of the paint.

In order to fill in blanks in the prior art, the invention discloses a method for constructing a super-hydrophobic coating on the surface of a copper alloy in situ for the first time. The method comprises the following steps that divalent and trivalent elements (such as Zn and Al) are introduced into the copper alloy, the copper alloy is soaked in a sodium chloride solution, and a layered double-metal hydroxide/oxide multi-stage structured film can be obtained in situ; the micro-structures and the phase types of the synthesized multi-stage structures are determined, and by adjusting the temperature of coating preparation, the multi-stage structures of different densities are constructed; the static contact angle of the surface modified by the perfluorooctyl triethoxysilane is determined; and the electrochemical test is used for representing the corrosion resistance of the copper alloy containing the super-hydrophobic coating, and then the corrosion resistance of the super-hydrophobic coating is proved. The method for constructing the super-hydrophobic coating on the surface of the copper alloy in situ is submitted for the first time, is simple and convenient, energy-saving and environment-friendly, low in cost and strong in controllability, the binding force between the super-hydrophobic coating and a copper alloy matrix is strong, the structure is stable, the practicability isrelatively high, and the method can be widely applied to industrial production.

The invention discloses a method for preparing a durable fabric with the electromagnetic shielding performance through superhydrophobic finishing. The method comprises the steps that the fabric obtained after cleaning and impurity removing is soaked in a pyrrole monomer (Py) solution, and then taken out and put in a dopant-containing ferric trichloride solution for in situ polymerization, so that a polypyrrole conductive (PPy) coating is formed on the surface of the fabric, then chemical vapor deposition is conducted on 1H,1H,2H,2H-perfluorooctyl triethoxylsilane (POST) on the surface of the fabric, and the durable fabric with the electromagnetic shielding performance is obtained. According to the prepared durable fabric with the excellent electromagnetic shielding performance, the prepared coated fabric is high in electromagnetic shielding effectiveness and controllable in coating thickness, the required experimental operation conditions are simple in requirement and low in energy consumption, expensive equipment is not needed, and the production cost is low.

The invention discloses a graphene in-situ grafted polyester film and a preparation method thereof. The preparation method comprises the following steps: with hydroxylated graphene and aminated graphene as modifiers, subjecting the hydroxylated graphene and the aminated graphene to condensation copolymerization with terephthalic acid and ethylene glycol so as to obtain a modified PET raw material,then blending the modified PET raw material with polyphenylene vinylene, a lotus leaf hydrophobic agent and perfluorooctyltriethoxysilane according to a mass ratio of 100: (0.5-2.5): (1-3): (0.5-1.5), and carrying out melt extrusion, cast casting and stretch molding; wherein a condensation reaction system comprises the following raw materials in percentages by mass: 6 to 10% of the hydroxylatedgraphene, 4 to 6% of the aminated graphene, 42 to 52% of the terephthalic acid, 36 to 38% of the ethylene glycol, 0.5 to 1% of a silane coupling agent, 0.5 to 1.5% of a stabilizer and 1 to 1.5% of a composite catalyst. According to the invention, graphene with a special functional group structure is utilized to generate a chemical cross-linking copolymerization reaction with a terephthalic acid monomer and an ethylene glycol monomer, and the graphene is introduced into a polyester molecular chain, so the graphene can maintain a stable and compatible state in a polyester system for a long term,and a polyester film can obtain permanent antistatic ability.

The invention discloses a heat-proof powder coating for corrosion prevention of a pump valve. The heat-proof powder coating is prepared from the following raw materials in parts by weight: 52-54 parts of hydroxyl polyester resin, 7-8 parts of fluorocarbon resin, 4-5 parts of 1,3,5-triglycidyl isocyanurate, 13-15 parts of nano aluminium sesquioxide, 0.8-0.9 part of perfluorooctyl triethoxysilane, 25-30 parts of an ethanol solution with the concentration of 75 wt%, 0.5-0.6 part of a silane coupling agent kh560, 0.7-0.9 part of dimethyl silicone oil, 0.4-0.5 part of a dispersing agent NNO, 6-7 parts of expansible graphite, 2-3 parts of glass fibers, 9-11 parts of barium sulfate, a proper amount of anhydrous ethyl alcohol and 0.8-1 part of Tween 80. The heat-proof powder coating can be used in high-temperature environments, does not contain toxic raw materials, is simple in manufacturing technology and use method, can be arranged on the surface of a pump valve material via electrostatic spraying, and can improve the high-temperature resistance by improving the coating surface tension.

The invention relates to a preparation method of hydrophobic mesoporous silicon and application of hydrophobic mesoporous silicon in preparing a waterproof colored coating and aims to effectively solve the problem that existing hydrophobic mesoporous silicon is environment-unfriendly and non-reusable and the application problem of the existing hydrophobic mesoporous silicon in preparing waterproof colored coatings. The preparation method includes: adding deionized water, hydrochloric acid, ammonium fluoride and mesitylene into polyethylene oxide-polypropylene oxide-polyethylene oxide tri-block copolymer, and stirring to form mixed liquid; adding ethyl orthosilicate and perfluorooctyl triethoxy silane, continuing to stir, flowing back, suction filtering, using water to wash a filter cake, and burning to obtain hydrophobic mesoporous silicon; filtering dye wastewater of an oily coating, adding the hydrophobic mesoporous silicon, adsorbing at room temperature, filtering out the hydrophobic mesoporous silicon, using alcohol and acetone to wash away surface dirt, vacuum drying, dispersing in alcohol, ultrasonically dispersing, coating, and drying to obtain the waterproof colored coating. The preparation method is stable and reliable, the hydrophobic mesoporous silicon is environment-friendly, and the mesoporous silicon can remove dye pollution and can be used for preparing the waterproof colored coating after adsorbing dye in water.

The invention discloses a stain-resistant latex paint. The stain-resistant latex paint is characterized by comprising formulas with the following mixing amounts in percentage by weight: (1) 17-19% of ammonium tungstate, (2) 5-7% of deionized water, (3) 4-6% of tetraethyl orthosilicate, (4) 2.5% of absolute ethyl alcohol, (5) 2.5% of hydrochloric acid, (6) 2-3% of perfluorooctyl-triethoxysilane, (7) 1.2% of a silane coupling agent, (8) 54-56% of polyester resin, (9) 4% of a curing agent namely methyl ethyl ketone, (10) 0.6% of an organic silicon leveling agent, (11) 1.5% of titanium dioxide, and (12) 1% of distilled water. The prepared latex paint disclosed by the invention has the advantages of strong stain resistance, good cost performance and the like.

Belonging to the building material manufacturing field, the invention discloses a concrete pumping agent and a preparation method thereof. The concrete pumping agent consists of the following raw materials by weight: h 20-30 parts of ydroxyethyl methyl cellulose, 5-15 parts of a polycarboxylate superplasticizer, 4-8 parts of sodium gluconate, 3-9 parts of tetraethyl orthosilicate, 4-10 parts of hexasaccharified dicalcium, 2-4 parts of perfluorooctyl triethoxysilane, 1-3 parts of polyvinyl alcohol and 10-20 parts of water. The invention also discloses a preparation method of the concrete pumping agent. The pumping agent provided by the invention has high strength and stable performance, has high fluidization, adhesive aggregation, lubrication and set retarding efficacy, and also has a widerange of application and good water reduction performance.

An improved concrete pumping agent is prepared from the following raw materials in parts by weight: 6-10 parts of aluminium sesquioxide, 3-9 parts of calcium lignosulphonate, 5-11 parts of hydroxypropyl starch ether, 5-8 parts of methyl cellulose, 2-7 parts of ammonium carbonate, 2-5 parts of an amine cosolvent, 6-9 parts of sodium alkylbenzenesulfonate, 7-11 parts of perfluorooctyl triethoxysilane, 2-4 parts of sulfur trioxide, 4-10 parts of nano silica, 4-10 parts of sodium trimethyl silanol, 1-5 parts of p-hydroxy N,N-dimethylcyclohexylamine, 3-8 parts of diethanol amine, 40 parts of water and 5-8 parts of silica powder. The improved concrete pumping agent has the benefits of being stable in performance, high in temperature applicability, wide in application range, and high in water reducing rate.

The invention relates to a preparation method of a normal-temperature cured wear-resistant anticorrosive super-hydrophobic coating, which comprises the following steps: (1) dispersing multi-walled carbon nanotubes and 1H,1H,2H,2H-perfluorooctyltriethoxysilane in ethyl acetate, and conducting stirring to obtain a mixed solution; (2) adding epoxy resin, a curing agent, SiO2 aerogel and ethyl acetate into the mixed solution in proportion; (3) carrying out ultrasonic treatment on the mixed solution in the step (2), and conducting stirring to obtain a spraying solution; (4) removing an oxide layer and other stains on the surface of the steel; (5) enabling the included angle between a spray gun and the sprayed steel to be 90 degrees and the distance between the foremost end of the spray gun and the sprayed steel to be 5-50 mm, and conducting spraying for 30 s; and (6) conducting drying at normal temperature in a ventilated place after spraying. The super-hydrophobic coating obtained by the invention has excellent self-cleaning, mechanical and self-repairing properties; a double-layer structure consisting of a surface micro-nano structure and a bottom porous structure is successfully constructed on the surface of the coating; and a spraying mode is used for operation, so that the cost is reduced.

The invention discloses an essence with a function of visually and stably suspending colorful oil droplet particles. The essence is prepared from, by mass, 88.5-95% of a basic material, 4.5-11% of anoily component, 0.2-0.6% of a suspending agent, 0.01-0.1% of a neutralizer, 0.0001-0.0004% of an oil-soluble coloring agent, wherein the oil component is a mixture of diphenyl dimethicone and perfluorooctyltriethoxysilane; the suspending agent is a mixture of euglena gracilis polysaccharides, xanthan gum and carbomer. The essence is transparent, colorful oil droplets are uniformly and stably suspended in particle form, it is achieved that oil and water stably coexist, and the essence is free of irritation, capable of bringing moist, smooth and tight skin feeling and suitable for all skin types.

The invention provides a method for preparing an aluminum alloy super-hydrophobic surface through laser peening, which comprises the following steps of: coating a restraint layer containing organic components on the surface of an aluminum alloy material serving as an absorption layer; the restraint layer containing the organic component is a mixed organic solution of 5 ml to 10 ml of perfluorooctyltriethoxysilane, 100 ml to 200 ml of absolute ethyl alcohol and 30 ml to 50 ml of distilled water; and laser peening is conducted on the surface of the aluminum alloy workpiece, and the super-hydrophobic surface is formed on the surface of the aluminum alloy workpiece. According to the method, the super-hydrophobic surface with the porous micro-nano structure is prepared in a coupling mode through the thermal effect generated when the high-energy short-pulse laser irradiates the surface of the aluminum alloy material, meanwhile, the GPa magnitude shock wave generated by laser shot peening enables structure grains of the material to be refined, and the mechanical property is remarkably improved.

The invention discloses a dark-proof makeup-holding pressed powder and a preparation method thereof, the anti-darkness makeup-holding pressed powder comprises a powder component and a bonding component, the powder component comprises the following components in parts by weight: 30-40 parts of a cyclodextrin metal organic framework material modified by retinol, 15-20 parts of pearl powder, 15-25 parts of talcum powder, 10-15 parts of mica powder, 3-5 parts of magnesium stearate and 8-10 parts of a coloring agent; the bonding component is prepared from 3 to 5 parts of grape seed oil, 5 to 8 parts of caprylic/capric triglyceride, 5 to 8 parts of pentaerythrityl tetraisostearate, 5 to 8 parts of squalane and 1 to 3 parts of perfluorooctyltriethoxysilane. A cyclodextrin metal organic framework material modified by retinol is added into the pressed powder, the pressed powder has a good oil control effect due to the porous structure of the cyclodextrin metal organic framework material, and the makeup lasting time of the pressed powder is prolonged; and the retinaldehyde can be continuously released in the use process, so that the oxidation resistance of the pressed powder is effectively improved, and meanwhile, sebum secretion can be reduced, so that the dark phenomenon after the pressed powder is used is avoided.