74 results about "Bisphenol Z" patented technology

The invention discloses a reduction-oxidation graphene-Fe3O4 nano composite, a preparation method thereof, and an application of the reduction-oxidation graphene-Fe3O4 nano composite in absorbing bisphenol A. The reduction-oxidation graphene-Fe3O4 nano composite comprises Fe3O4 nano particles and reduction-oxidation graphene. The reduction-oxidation graphene-Fe3O4 nano composite and a solution containing the bisphenol A are in full contact in an ambient temperature, the bisphenol A is absorbed and removed. Compared with the prior art, the advantages of small material dose, simplicity in operation, mild processing condition, fast processing speed, and no harm for the environment, and recycling nano-composite materials, and the like are achieved.

The invention discloses a preparation method of a light-resistant water-based polyurethane coating. The preparation method comprises the following steps of: mixing bisphenol S and diisocyanate in the presence of a dibutyltin dilaurate catalyst, and stirring to react at 60-85 DEG C for 1.5-3.5 hours to obtain a polyurethane prepolymer A; adding a hydrophilic chain extender with carboxyl content accounting for 1.2%-4.6% of the weight of A into A, then adding a solvent which accounts for 15%-35% of the weight of A, and stirring to react under the condition of 80-95 DEG C for 1.0-4.0 hours; adding triethylamine according to the condition that the mole ratio of COOH/NH2 is 0.6:(1-1.6):1 for neutralization, stirring to react for 30-70 minutes, and adding water for emulsification to form the light-resistant water-based polyurethane coating. The prepared light-resistant water-based polyurethane is environmentally-friendly and low in cost and can meet the requirement of the market on the property of light-resistant polyurethane.

The disclosed polyetherimide copolymer is copolymerized in dichloro-benzenes with the material with disubstituted phthalimide, diamine as NH2-R-NH2 and proper NH2-R-NH2 and 4, 4-dichlorodiphenyl sulfone. This invention reduces cost, simplifies process, and can recover the solvent conveniently.

The invention discloses a preparation method of heat-resisting modified polyurethane composite, comprising: adding hexafluobisphenol A and 3-aminopropyl-methyldimethoxysilane into a reaction container, and reacting to obtain silicon-bearing chain extender; mixing well polycarbonate diols, hydroxyl-terminated liquid silicon rubber, nano calcium carbonate, montmorillonite and epoxy resin, adding 1,4-cyclohexane diisocyanate, dibutyltin dioctanoate and butanone, and stirring and reacting to obtain polyurethane prepolymer; mixing well the polyurethane prepolymer with 1,4-bis(2-hydroxyethoxy)benzene, 4,4'-diaminodiphenyl and the silicon-bearing chain extender, and stirring and reacting and then curing to obtain the heat-resisting modified polyurethane composite. The preparation method of the heat-resisting modified polyurethane composite provided herein has a simple process and mild conditions, and the obtained composite has high strength, good heat resistance and excellent ageing resistance and can meet the requirement of use in various fields.

The invention provides a preparation method of an amino group-containing porous material, and an application of the amino group-containing porous material, and relates to the field of materials. The preparation method of the amino group-containing porous material is characterized in that the amino group-containing porous material is obtained through copolymerizing 4,4'-(hexachloroisopropylidene)bisphenol and melamine in an alkaline solution. The amino group-containing porous material can adsorb precious metal ions to make a waste metal treatment fluid repeatedly used, so the process flow is simplified, the precious metal recovery cost is reduced, changing of wastes into valuables is realized, pollution discharge is reduced, and environmental protection and green environment requirements are met. The material can be expected to be massively applied in the future industrial production.

The invention discloses an activated carbon hollow fiber polysulfone membrane and a preparation method thereof; the membrane is an asymmetrical three-layer structure which comprises an outer surface layer, a middle support layer and an inner surface layer from outside to inside; the three layers are evenly distributed with activated carbon particles with particle sizes being less than or equal to 10mu m, specific surface area being 1104m/g, void volume being 0.92cm/g; continuous phase of the membrane is transparent bisphenol A polysulfone which is obtained by polycondensation of bisphenol A and 4, 4-dichloro diphenylsulfone and provided with molecular weight ranging from 100000 to 116500. The preparation method has the following steps: mixing the polysulfone, the activated carbon particles and 1-methyl-2 pyrollidone according to the mass ratio of 1:4:5-1:5:5; heating to melt the mixture and then obtaining the activated carbon hollow fiber polysulfone membrane by adopting wet-type spinning process with wet spinning distance being 2m, spinning extrusion volume flow rate being 12-15mL/min and spinning solution temperature being 75-80 DEG C. The activated carbon particles are made of coconut shells, the average grain diameter is less than 10mu m, the specific surface area is 1104m/g, and the void volume is 0.92cm/g. The membrane treatment effect is fine, the treatment time is short and the adsorbability of the membrane is high.

The invention relates to a preparation process of polycarbonate. The preparation process comprises the following steps: (S1) respectively fusing the substances respectively in formula 1 (shown in the description) and formula 2 (shown in the description) so as to obtain melts, adding the melts into an ester exchange reactor, and adding a catalyst to generate ester exchange reaction, so as to obtain an oligomer; (S2) adding the oligomer obtained in the step (S1) into a condensation polymerization reactor to generate condensation polymerization, so as to obtain a condensation polymerization product; and (S3) adding the condensation polymerization product obtained in the step (S2) into an extruding machine, carrying out extruding, water-bath cooling and drying, conveying the condensation polymerization product to a granulator, and carrying out shear granulation, so as to obtain finished polycarbonate particles, wherein R represents a naphthenic base, and R' and R'' represent alkyl or phenyl. By utilizing the above technical scheme, bisphenol Z-series polycarbonate is prepared in a melting manner, so that the use of a large number of solvents is saved, the resources are saved, and excessive environmental pollution is unlikely to be caused.

The invention discloses a continuous industrial production method of high-purity bisphenol A bis (diphenyl phosphate). The method comprises the following steps: dividing bisphenol A into two parts, mixing part of bisphenol A with phosphorus oxychloride and a Lewis acid catalyst, adding the mixture into a continuous multistage crosslinking reactor, reacting, and evaporating to remove excessive phosphorus oxychloride after the reaction is ended, adding an organic alkali acid-binding agent into the distillation residual liquid to react with the residual bisphenol A for 1.5-3 hours at the temperature of 115-120 DEG C to obtain an intermediate product reaction liquid, mixing the intermediate product reaction liquid with phenol, feeding the mixture into a multi-stage esterification reactor for esterification reaction, continuously supplying consumed phenol in the esterification process, and obtaining a crude product after the reaction is finished; and sequentially carrying out continuous acid washing, continuous alkali washing, continuous water washing, continuous solvent recovery and filtration to obtain the bisphenol A-bis (diphenyl phosphate) finished product. According to the method,the production cost is reduced, the product yield is increased to 97% or above, the product color number is increased to 50 or below, TPP is controlled to be 0.1%, isopropenyl phenyl diphenyl phosphate is smaller than 50 ppm, and fluctuation of quality indexes of all products is small.

The invention provides bisphenol A paraformaldehyde phenolic resin and a preparation method thereof, n-butyl alcohol is used as a solvent, p-toluenesulfonic acid is used as a catalyst, and bisphenol Aand paraformaldehyde are subjected to addition condensation reaction to obtain bisphenol A paraformaldehyde phenolic resin. The bisphenol A paraformaldehyde phenolic resin is produced by utilizing the characteristic that paraformaldehyde does not contain water, taking bisphenol A as a raw material, taking n-butyl alcohol as a solvent and taking p-toluenesulfonic acid as a catalyst and carrying out addition condensation reaction, the operation is simple, the environment is protected, the production cost is low, the synthetic route is easy to produce, the problem of environmental pollution caused by a large amount of industrial wastewater in the production process of phenolic resin is solved, and the synthesized product has high molecular weight.

The invention discloses a preparation method of a phosphorus-modified phenolic resin, which comprises the following steps: performing polycondensation on p-tert-octylphenol, nonylphenol, bisphenol A and formaldehyde under the action of a catalyst to obtain a phenolic condensation intermediate; and reacting the intermediate with monohydroxy alcohols and organic phosphorus heterocyclic compounds at a preset temperature for preset time under catalytic conditions to prepare the phosphorus-modified phenolic resin. The method solves the problem of complete dependency on the phosphorus-modified phenolic resin imported from abroad in the past, and enhances the heat resistance, binding strength, peel strength, favorable space size, excellent electric properties, mechanical strength and other physicochemical performance indexes of the original phosphorus-modified phenolic resin, so that the phosphorus-modified phenolic resin has relatively good application properties when being applied to the field of electronic chemicals.

The invention discloses a 1, 4-2[4-(N, N-p-Methyl-phenyl-amino) styryl] naphthol and the preparation method and application, which belongs to the technology field of photoelectric materials. The structural formula of the component refers to the drawing and the preparation process of the component comprises that: 1-chloromethyl naphthalene reacts with paraformaldehyde and hydrochloric acid under the catalysis of the phosphoric acid to prepare 1, 4- dichloromethylnaphthalene and then reacts with triethyl phosphate to prepare the wittig reagent; the produced wittig reagent reacts with 4-(N, N-2 p-Methyl-phenyl-amino) aminotenzaldehyde under the action of alkali to gain the starting material. The component mixes with bisphenol A Pc resin or bisphenol Z Pc resin to prepare the hole-transporting layer thin film of the organic photoconductor of function separated type. The invention has moderate reaction conditions and has high photosensitivity of the organic photoconductor appliance as the hole-transporting material.

The invention relates to a bisphenol Z containing polyaryletherketone random segmented copolymer and a preparation method thereof. The method comprises the following step of performing nucleophilic substitution polycondensation in a reaction medium to prepare the bisphenol Z containing polyaryletherketone random segmented copolymer based on bisphenol Z, hydroquinone and 4, 4-difluoro benzophenone as reaction monomers and an alkali metal salt as a salt-forming agent and catalyst. The bisphenol Z containing polyaryletherketone random segmented copolymer prepared by the invention is good in solubility, thermal stability and mechanical property, the raw materials are easy to obtain, and the preparation method is simple and suitable for industrialized production, so that the copolymer has good application prospect in the fields of functional structural materials, high-temperature-resisting coatings, high-temperature-resisting separation films, solvent coatings, micro-electronics and the like.

The invention discloses a preparation method of bisphenol Z and bisphenol Z. The preparation method comprises the following steps: by taking phenol and cyclohexanone as raw materials and solid acid as a catalyst, carrying out catalytic dehydration reaction, filtering, distilling and recrystallizing to obtain bisphenol Z; the solid acid is ion exchange resin or a molecular sieve. According to the method, a corrosive liquid acid catalyst is not used in the reaction process, and the operation process is simple, so that the requirement on production equipment is not too high. Most importantly, a large amount of water is not needed for cleaning after the reaction, so that the generation of wastewater is greatly reduced, alkali neutralization is not needed, the existence of salt is reduced, and the product quality is improved. In addition, compared with a liquid acid catalyst, the solid acid catalyst can be repeatedly used, so that the investment cost of the catalyst is reduced.

The invention discloses preparation of a demulsifier for rapidly dehydrating crude oil of an offshore platform. The synthesis and improvement process comprises the following step: (1) adding 2 parts of bisphenol A and 5 parts of triethylene tetramine into a four-neck flask, performing stirring and heating until complete dissolution, slowly adding 2.5 parts of a formaldehyde solution with the concentration of 40% in a dropwise manner when the temperature is 35-55 DEG C, conducting heat preservation for 35-45 min, adding 4.75 parts of xylene, increasing the temperature to 100-110 DEG C to removemoisture in the flask, continuing increasing the temperature to 185-195 DEG C to distill out xylene, and performing reaction on the remaining substances sufficiently for 1-2h to generate an initiator. The novel modified demulsifier has a good research prospect in the field of demulsification. The problems that after polymer flooding, produced liquid is high in emulsification degree, the demulsification difficulty is remarkably improved, due to the fact that the space of an offshore platform is limited, the emulsion treatment time of a land oil field can reach one day or even longer, but the treatment time on the sea is far shorter than the land treatment time, and the requirement for the demulsifier is stricter are solved.

The invention discloses an efficient and environment-friendly compound polyether demulsifier and a preparation method thereof. The preparation method comprises the following steps: firstly, reacting bisphenol A with diethylenetriamine and formaldehyde to prepare a polyamine compound; polymerizing the branched cationic polyether with ethylene oxide and propylene oxide, and carrying out cationic modification to obtain a branched cationic polyether reverse demulsifier; and finally, compounding the prepared multi-branched cationic polyether reverse demulsifier with a biological demulsifier, a flocculating agent and a cross-linking agent according to a certain ratio, dissolving with a solvent, and uniformly mixing the components to obtain the compound polyether demulsifier. The efficient and environment-friendly compound polyether demulsifier prepared by the invention is high in demulsifying speed and good in demulsifying effect, the dosage of the demulsifier can be reduced, the damage to the environment is reduced, and the effects of environmental protection and energy conservation are achieved.

The invention discloses a method for quantitatively detecting bisphenol A, belongs to the field of environmental analytical chemistry, and particularly relates to a method for detecting bisphenol A bya graphene-rhodamine binary system. The method comprises the following steps: firstly, adding rhodamine B into a graphene solution to cause fluorescence quenching of rhodamine B; then adding bisphenol A into the system, and due to the fact that the binding force of bisphenol A and graphene is high, competitive adsorption is conducted on bisphenol A and rhodamine B, rhodamine B is desorbed from the surface of graphene, and fluorescence is recovered; and quantitatively detecting the bisphenol A by measuring the fluorescence change of the system. The method has the advantages of being simple, high in speed, good in selectivity, wide in linear range and the like.

The invention discloses a method for synthesizing a 4-hydroxy-4'-isopropoxy-diphenyl sulfone compound by a micro-channel reactor, and belongs to the technical field of chemical products. The preparation method comprises the following steps: (1) adding 4,4-dihydroxy diphenyl sulfone (bisphenol S), sodium hydroxide and water into a three-neck bottle, and stirring until the materials are completely dissolved, wherein the molar ratio of bisphenol S to sodium hydroxide is 1:1, and the weight of the added water is 2.5-10 times that of bisphenol S; (2) adding 2-bromopropane into another single-mouthbottle, wherein the molar ratio of 2-bromopropane to bisphenol S is 1:1; (3) respectively introducing into a micro-channel reactor by using a metering pump; (4) carrying out a reaction at a reaction temperature of 50-80 DEG C for 3-5 minutes; (5) adding the obtained reaction solution into another clean medium-three-neck bottle, cooling to room temperature, and separating out for 5-10 hours; and (6) filtering, washing with water, and drying to obtain the product. The method has the advantages of short reaction time, low alkali consumption, high conversion rate and high yield.

The invention belongs to the field of polycarbonate modification and synthesis, and discloses strong anti-ultraviolet polycarbonate resin and a preparation method thereof, and solves the problem thatvirulent phosgene is used when an existing ultraviolet light absorber is grafted on a resin molecular segment through a chemical bond and anti-ultraviolet polycarbonate obtained has a limited ultraviolet absorption effect. According to the technical scheme, the strong anti-ultraviolet polycarbonate resin has wide strong absorption of ultraviolet light with the wavelength of 300-400 nm but has no absorption or weak absorption of visible light. The strong anti-ultraviolet polycarbonate resin is prepared by polymerization through a transesterification method using bisphenol Z and carbonic ester as raw materials supplemented with ultraviolet light absorbers U1, U2 and U3 as functional blocking agents. The product has high transparent color and excellent UV resistance.

The invention provides a preparation method of a styrenated bisphenol A derivative as a polyvinyl chloride terminating agent, and belongs to the technical field of synthetic material additives. In order to improve the intermiscibility of an antioxidant bisphenol A product in a polymer, a catalytic alkylation reaction between bisphenol A and styrene is carried out to prepare the styrenated bisphenol A derivative which is used for the polyvinyl chloride (PVC) terminating agent. Specifically, the styrenated bisphenol A derivative is compounded with zinc isoocatanoate, a liquid thioether antioxidant, a bisphenol monoacrylate compound, a liquid-state blender and a decolorizing agent, so that a liquid terminating agent product is obtained. The styrenated bisphenol A derivative is obtained by the preparation method through the alkylation reaction between the bisphenol A and the styrene; and the preparation method has the characteristics of simple production process, easily available raw materials, low product use cost and convenience for industrial popularization and application; the terminating agent is nontoxic and environment-friendly without generating water pollutants.