66results about How to "Excellent oil repellency" patented technology

The present invention discloses the preparation process and application of fluorocarbon chain-containing acrylate and its copolymer. The preparation process of the fluorocarbon chain-containing acrylate includes the steps of: 1. synthesizing Rf(CH2CF2)mix; 2. synthesizing fluoric alcohol Rf-(CH2CF2)m(CH2)nOH; and 3. synthesizing fluorocarbon chain-containing acrylate. The present invention is used in surface water-repellent and oil-repellent treatment of fabric, metal, paper, glass, plastic, rubber, ceramic, etc. The present invention is one kind of high performance green water-repellent and oil-repellent agent with excellent water-repellent, oil-repellent and antifouling functions and degradability.

The invention relates to a fluorine-silicon modified waterborne alkyd resin and a preparing method thereof. The fluorine-silicon modified waterborne alkyd resin is prepared from vegetable oil fatty acid, organic acid anhydride, polyol, fluorinated allyl monomers, isocyanate, hydroxyl-terminated organic silicon, acrylic monomers and deionized water. Single-component waterborne paint, double-component waterborne paint and room-temperature curing paint can be blended with the fluorine-silicon modified waterborne alkyd resin prepared through the method. The prepared fluorine-silicon modified waterborne alkyd resin has the performance such as high adhesion, stain resistance, high hardness, water resistance, durability, hydrophobicity and self-cleaning performance, and can be widely applied to waterborne wood paint, waterborne industrial paint, waterborne anti-fouling paint, waterborne corrosion resistance paint, waterborne special engineering paint such as radar dome materials, wind power generation, nuclear power and vessel paint and the like.

The invention discloses a photo-curing-based water and oil repellent finishing method for a fabric, belonging to the technical field of fabric finishing, and aiming to overcome the shortcomings of high baking temperature, high production energy consumption and low processing efficiency in conventional after-finishing and achieve the water and oil repellent functional finishing of the fabric under a photo-curing condition. A process specifically comprises the following steps of (1) synthesizing a fluorine-containing urethane acrylate prepolymer, namely carrying out reaction on isocyanate and hydroxyethyl acrylate and carrying out reaction on a reaction product and a fluorine-containing polyether type diol long chain to obtain the prepolymer, or carrying out reaction on isocyanate and fluorine-containing polyether type diol and then adding the hydroxyethyl acrylate into a system; and (2) preparing a photo-curable resin system from the prepolymer, a reactive diluent, a photoinitiator, a solvent and the like, coating and rolling-compacting the photo-curable resin system on the surface of the fabric, and irradiating the fabric for a certain time by using ultraviolet light to finish curing of a resin with water and oil repellent effects on the surface of the fabric. According to the method, the water and oil repellent performance of the finished fabric is improved, and the strength of the fabric is slightly weakened; compared with a conventional thermal-baking-based chemical finishing method, the photo-curing-based water and oil repellent finishing method for the fabric has the advantages that the process flow is short, the energy consumption is low and the efficiency is high.

The invention discloses a preparation method for a non-woven fabric for a protective garment. The preparation method comprises: cleaning and drying a polypropylene composite non-woven fabric, carryingout plasma treatment, placing the non-woven fabric in air to obtain a material A, uniformly mixing 10-hydroxy-cyclohexyl-phenyl ketone, a fluorine-containing acrylic resin, octadecyl methacrylate, glycidyl acrylate, borneol acrylate, fatty alcohol polyoxyethylene ether, ethylene glycol dimethacrylate and water to obtain a material B, adding the material A into the material B, carrying out ultraviolet light irradiation for a grafting reaction, carrying out washing and drying to obtain a material C, uniformly mixing p-aminobenzotrifluoride, n-octylamine, alkylaminoglucitol, 4-amino-1, 2, 4-triazole and dioxane, adding the material C into the mixture, carrying out a reaction process, carrying out washing and drying to obtain a material D, adding graphene oxide into water, adjusting pH to greater than 7, carrying out ultrasonic treatment, adding glucose into the reaction product for a reaction, mixing the product, hydroxylamine hydrochloride, allicin, a zinc complex, lentinan and a silk fibroin, adding the material D into the mixture, and carrying out padding and drying.

This invention discloses a solvent-based fluorinated water and oil repellent and process for producing the same. Said fluorinated water and oil repellent comprises 20˜50% (w/w) blocked polyfluorourethane compound and 50˜80% (w/w) solvent; its reaction agents include fluoroalcohol compound, diisocyanate or polymeric isocyanate compound, cross-linking agent, blocking agent, and solvent. The process for synthesizing the blocked polyfluorourethane is by bulk polymerization.

The present invention provides a copolymer whose durability on cleaning is improved while maintaining good water- and oil-repellency. Disclosed is a copolymer having:(i) a fluoroalkyl group,(ii) a urethane or urea linkage, and(iii) a functional group selected from the group consisting of a carboxyl group, a carboxylic anhydride group, an epoxy group, a phosphoric group, an alkoxysilane group, a imine group, a sulfonic group, an amino group, an isocyanate group and a chlorine atom, and a stainproof agent containing the copolymer as an active component.

The invention discloses a foam extinguishing agent, which is prepared from the following components in percentage by mass: 1.5%-3.5% of perfluor glycine betaine, 2%-5% of fluorinated alkyl betaine, 3%-5% of urea, 5%-15% of alpha-sodium olefinsulfonate, 10%-15% of lauryl sodium sulfate, 10%-16% of alkyl glycoside (1412), 10%-20% of ethylene glycol, 0.1%-0.3% of xanthan gum and the balance of water. The invention further discloses an application of the foam extinguishing agent. A film generated by the foam extinguishing agent is relatively high in thickness and stability, high in fire extinguishing speed and relatively good in fire extinguishing effect.

Disclosed is a water-repellent oil-repellent antifouling agent containing a fluorine-containing polymer for a treatment for providing water repellency, oil repellency and antifouling property. The fluorine-containing polymer has a repeating unit (A) derived from a fluorine-containing acrylate monomer, and a repeating unit (B) derived from at least one non-fluorine acrylate monomer selected from the group consisting of a monomer (B1) having a cyclic hydrocarbon group and a monomer (B2) having a short chain hydrocarbon group. This water-repellent oil-repellent antifouling agent has good solubility in solvents, and exhibits excellent effects on various bases, especially on masonries.

A fluoropolymer for masonry treatment produced from (A) a fluoromonomer which has been substituted in the α-position by a X group and is represented by the formula (I):

and (B) a monomer having a functional group reactive with active hydrogen. It imparts excellent water- and oil-repellency and unsusceptibility to fouling to masonries.

The invention provides a perfluoropolyether modified dentritic silane derivative. The perfluoropolyether modified dentritic polymer has a structural formula as shown in formulae 1 and 2, wherein m andn are respectively selected from integers of 1-40, and sum of m and n is 20-60, and m/n is 0.3-3; l is 0 or 1; and the terminal methoxyl connected with the silicon atom can be replaced by alkoxy having the number of carbon atoms being 2-5.

An oil-repellent coating material composition containing:

(A) an alkoxysilane, represented by the following general formula (1), having a hydrocarbon group to which at least one or more fluorine atoms are bonded;

R^f[—X—Y—SiR¹_a(OR²)_3−a]_m   (1)

wherein

R^f represents an alkyl group, an alkenyl group, or an aromatic hydrocarbon group, the group having at least one fluorine atom and 1 to 20 carbon atoms;

X represents an oxygen atom or a divalent organic group containing an oxygen atom;

Y represents a spacer group (CH(Z)—)_n

wherein Z is a substituent selected from a hydrogen atom, a halogen atom, or a hydrocarbon group having 1 to 3 carbon atoms, and n is of 2 to 8;

R¹ and R² may be the same or different hydrocarbon group(s) having 1 to 10 carbon atoms;

m is 1 or 2; and

a is 0, 1, or 2); and

(B) a condensation catalyst.

The hydrophilic oil repellent includes one or more types of nitrogen-containing fluorine-based compounds. The nitrogen-containing fluorine-based compound includes any one hydrophilicity imparting group selected from the group consisting of anion type hydrophilicity imparting groups, cation type hydrophilicity imparting groups, and amphoteric type hydrophilicity imparting groups in the molecule.

The invention discloses oil-repellent finishing liquid for a woolen sweater and a preparation method for the oil-repellent finishing liquid. The oil-repellent finishing liquid for the woolen sweater consists of the following components in parts by weight: 6 to 8 parts of polyethylene glycol monomethyl ether, 3 to 5 parts of an emulsifier OP-13, 2 to 5 parts of polypropylene glycol, 6 to 10 parts of sodium polyacrylate, 14 to 17 parts of ethanol and 185 to 200 parts of water. The finishing liquid is prepared by the steps of heating, stirring, sealed storage and the like. The prepared finishing liquid has a good oil-repellent effect.

Provided is a surface treatment agent which does not use fluorine-containing monomers, particularly fluoroalkyl group-containing monomers. The surface treatment agent is a water-based emulsion which includes: a copolymer (1) which includes a first polymer formed from first monomers, and a second polymer formed from second monomers, wherein the second polymer is polymerized in the presence of the first polymer, the first monomers include a long-chain acrylate ester monomer (a) represented by the formula CH₂═CA¹¹-C(═O)—O-A¹² (in the formula, A¹¹ represents hydrogen, a monovalent organic group, or a halogen, and A¹² represents a C_18-30 straight-chain or branched hydrocarbon group), the first monomers do not include a halogenated olefin monomer (b), and the second monomers include the halogenated olefin monomer (b); a surfactant (2) including a nonionic surfactant; and a liquid medium (3) including water.

The invention discloses dacron textile easy to decontaminate. A water sucking oil repellent resin film is covered on the surface of single fibres of the textile. Residual quantity of perfluor octanoic acid ammonium compound in the water sucking oil repellent resin film is more than 0 and less than or equals to 0.05mu g/g. Residual quantity of perfluor octane sulfonic acid compound is greater than 0 or less than or equals to 0.05mu g/g. Sweat can be absorbed when a person wears clothes made from the dacron textile easy to decontaminate. Oily dirt is prevented from permeating to the inner portion of the fibre. The dirt is removed simply under the condition of the combined effect of a dewatering component and a hydrophilic component. The decontamination ability is good when the dacron textile easy to decontaminate is washed while a detergent is not added at the same time.