198 results about "Cyanuric chloride" patented technology

The invention discloses an efficient wet desulfurization synergist and a preparation method thereof, and relates to the technical field of flue gas desulfurization. The efficient wet desulphurization synergist comprises the following raw materials in parts by weight: 10-20 parts of sodium formate, 5-10 parts of citric acid, 20-30 parts of binary acid, 5-6 parts of a surfactant, 15-20 parts of magnesium salt, 12-18 parts of sodium salt and 2-5 parts of a pH buffer agent. The preparation method comprises the following steps: reacting cyanuric chloride with lauryl amine to generate a monosubstituted compound; then reacting with L-asparaginic acid to generate a disubstituted compound; reacting with diethylenetriamine to generate a bis-triazine ring compound; and finally, reacting with sodium 2-chloroethanesulfonate to generate the surfactant. The high-efficiency wet desulphurization synergist prepared by the invention has a desulphurization effect.

The invention discloses a synthesis method of bromo-triazine, which belongs to the technical field of organic synthesis, and comprises the following steps: preparing an alumina-loaded N, N-dimethylaminopyridine catalyst, filling the alumina-loaded N, N-dimethylaminopyridine catalyst in a fixed bed reactor, introducing tribromophenol and metal oxide mixed slurry and cyanuric chloride slurry, carrying out a reaction for 2-4 hours, and carrying out a reaction for 2-4 hours to obtain the bromo-triazine. Raising the temperature for reaction to obtain a crude product solution; and performing post-treatment to obtain a bromo-triazine product. According to the invention, the aluminum oxide loaded N, N-dimethylaminopyridine catalyst is synthesized, and the N, N-dimethylaminopyridine enables the reaction speed to be higher and the yield to be higher; nano aluminum oxide is adopted for loading, so that on one hand, dealkalization synthesis of bromotriazine is realized, and on the other hand, the reaction efficiency is accelerated; the continuous process realizes non-aqueous medium and low-temperature short-time reaction, so that hydrolysis is further avoided; the aluminum oxide loaded N, N-dimethylaminopyridine catalyst is high in activity and stability, the synthesis method is simplified, and the aluminum oxide loaded N, N-dimethylaminopyridine catalyst is suitable for industrial large-scale production.

The invention discloses a heteroatom modified intrinsic microporous polymer material, a preparation method and application, and belongs to the technical field of environmental governance, and the preparation method comprises the following steps: (1) preparing nitro-substituted oxygen atom bridged calixarene from cyanuric chloride and nitro-substituted resorcinol in the presence of a basic catalyst; (2) reducing the nitro-substituted oxygen atom bridged calixarene into amino-substituted oxygen atom bridged calixarene; and (3) carrying out a Schiff base polymerization reaction on the amino-substituted oxygen atom bridged calixarene and a polyfunctional aldehyde group under a solvothermal condition to obtain the heteroatom modified intrinsic microporous polymer material. When the adsorbent is used, the adsorbent is directly added into a metal ion solution, the removal rate of dichromate radicals and manganese ions can reach 90% or above, and the adsorbed material can be repeatedly used after being washed by an acidic aqueous solution. And the polymerized material also has high water body stability, and is beneficial to recycling of the material.

The invention discloses a bulletproof composite material and a preparation method thereof, and relates to the technical field of bulletproof composite materials. The bulletproof composite material is formed by compounding aramid fibers and a resin matrix, wherein the resin matrix comprises the following raw materials in parts by weight: 60-70 parts of epoxy resin, 5-8 parts of a modified toughening agent, 4-5 parts of a curing agent, 1-2 parts of a heat stabilizer, 1-2 parts of an inorganic filler, 0.5-1 part of a coupling agent and 2-5 parts of a wetting agent; the preparation method comprises the following steps: reacting cyanuric chloride with 4-hydroxyphenylboronic acid to generate an intermediate 1; reacting the intermediate 1 with 3-amino-1, 2-epoxypropane to generate an intermediate 2; reacting the intermediate 2 with cystamine to generate an intermediate 3, and reacting the intermediate 3 with dopamine to generate the modified toughening agent. The bulletproof composite material prepared by the invention has good ballistic protection performance, multiple impact resistance and self-repairing performance.

The invention relates to the technical field of fine chemical engineering and flame retardant preparation, and discloses a preparation method of bromo-triazine capable of improving thermal stability, and the preparation method comprises the following steps: mixing phenol, water and dichloromethane, controlling the temperature, and carrying out oxidative bromination reaction to prepare an organic phase containing tribromophenol; then, under the action of an organic amine catalyst, carrying out condensation reaction on the organic phase, liquid caustic soda and cyanuric chloride; after the reaction, washing with water to remove impurities; and in the presence of process water, firstly controlling the temperature at 38-42 DEG C for azeotropic desolvation, then raising the temperature to 85-95 DEG C for high-temperature crystallization and crystal growing, and finally cooling, filtering and drying to obtain the bromo-triazine product. By utilizing the high selectivity of the organic amine catalyst and a two-stage azeotropic crystallization process, the side reaction is effectively reduced, the solvent wrapped in the crystal is eliminated, the prepared product is high in main content and extremely low in volatile component, the temperature can reach 370 DEG C or above when the thermal weight loss is 2%, and the thermal stability is remarkably improved.

The invention discloses a PVC / PU modified material and a preparation method thereof, and belongs to the technical field of high polymer materials. The PVC / PU modified material comprises the following raw materials in parts by weight: 80-100 parts of PVC, 30-40 parts of PU, 10-20 parts of a plasticizer, 4-8 parts of a modified flame-retardant anti-aging agent, 2-4 parts of a stabilizer and 3-5 parts of a lubricant. The preparation method comprises the following steps: carrying out a reaction on cyanuric chloride and N-phenyl p-phenylenediamine to prepare an intermediate 1, carrying out a reaction on the intermediate 1 and 1-amino-10-undecene to prepare an intermediate 2, carrying out a reaction on diphenyl phosphinyl chloride and 1-amino-10-undecene to prepare an intermediate 3, and finally carrying out a reaction on the intermediate 2 and the intermediate 3 to prepare the modified flame-retardant anti-aging agent. The PVC / PU modified material prepared by the invention has excellent anti-aging performance and flame retardant performance.

The invention relates to the field of pouring sealants, and discloses a modified epoxy resin pouring sealant and a preparation method thereof, the pouring sealant comprises epoxy resin, a modified inorganic filler, a modified additive and an auxiliary agent; the modified inorganic filler is prepared by grafting a quaternized s-triazine derivative and an inorganic filler; the quaternized s-triazine derivative is prepared through the steps that 3, 5-diaminophenylboronic acid, cyanuric chloride, 3-chloropropyltrimethoxysilane and 1, 4-butanediamine are sequentially subjected to substitution to prepare a s-triazine derivative, then the s-triazine derivative reacts with N, N-dimethyl-1, 3-diaminopropane, and bromoethane is used for quaternization treatment. The modified additive is prepared from a modified bismaleimide monomer prepared from maleic anhydride and 5 (6)-amino-1-(4-aminophenyl)-1, 3, 3-trimethylindane and 1-methyl-4-isopropyl cyclohexene through a self-stabilization precipitation polymerization method, the prepared pouring sealant is high in tensile strength, good in impact resistance and good in mechanical property, and the prepared pouring sealant has the advantages of being good in mechanical property, good in mechanical property and good in mechanical property. Meanwhile, good heat resistance, flame retardance, dielectricity and antibacterial activity are achieved.

The invention discloses an aluminum oxide coated diaphragm and a preparation method thereof in the field of lithium ion battery diaphragms. The diaphragm comprises aluminum oxide particles, a fluorine-containing porous organosilicon compound, a phosphorus heterocyclic covalent organic framework, a binder, a dispersant and deionized water. The fluorine-containing porous organosilicon compound is prepared by mixing methyltrimethoxysilane, perfluorohexyltrimethoxysilane and water, adding ammonia water to adjust the pH value, then reacting to form a sol-gel system, adding amino silane to continue reacting, and then carrying out rotary evaporation, calcination and grinding. The phosphorus heterocycle covalent organic framework is prepared by dissolving cyanuric chloride, triphenylphosphine oxide and anhydrous tetrahydrofuran, adding imidazole bromide to react to form an intermediate, then adding ethylene glycol to continuously react, and performing vacuum drying and grinding to obtain the phosphorus heterocycle covalent organic framework. According to the diaphragm, the interface adhesion and electrolyte wettability are enhanced synergistically through the bifunctional compound, and the thermal stability and the cycle performance are improved.

The invention discloses a preparation method and application of a multicolor double-dyed antibacterial polyester-cotton fabric, and the preparation method comprises the following steps: S1, mixing a polyester-cotton fabric, a disperse dye and a solvent, and carrying out high-temperature and high-pressure treatment to obtain a dyed polyester-cotton fabric; s2, dipping the dyed polyester-cotton fabric in a cyanuric chloride solution, and carrying out a first heating reaction to obtain a cyanuric chloride grafted polyester-cotton fabric; and S3, dipping the cyanuric chloride grafted polyester-cotton fabric in a sodium copper chlorophyllin aqueous solution, and carrying out a second heating reaction to obtain the multicolor double-dyed antibacterial polyester-cotton fabric. By controlling the process conditions of the polyester high-temperature and high-pressure dyeing process, the content of hydroxyl exposed on the surface of cotton fiber in the fabric is effectively increased while dyeing is performed, so that more sodium copper chlorophyllin is grafted on the surface of the fabric through cyanuric chloride, and the polyester-cotton fabric with diversified colors, excellent antibacterial effect and good toughness is obtained.

The invention provides a long-acting antibacterial chinlon composite fiber and a preparation process thereof, and belongs to the technical field of composite fibers. The preparation process comprises the following steps: preparing the modifier; preparing modified graphite; preparing the antistatic modified polyamide fiber; preparing an antibacterial treatment solution; and preparing the chinlon composite fiber. Cyanuric chloride and N, N-dimethyl propane diamine react to generate an intermediate, then the intermediate and 1, 3-propane sultone react to generate an antibacterial agent, the antibacterial agent is prepared into an antibacterial treatment solution, and after the antibacterial treatment solution is added into the pretreated antistatic modified polyamide fibers, the antibacterial agent can be connected to the surfaces of the fibers, so that the antistatic property of the fibers is improved. The anti-static modified polyamide fiber has better washing-resistant and antibacterial properties by adding the antibacterial agent into the polyamide fiber, and then the washing-resistant and antibacterial properties of the antibacterial agent can be further improved after bond energy is enhanced through heat treatment, so that the prepared polyamide composite fiber has a long-acting antibacterial effect.

The invention relates to the field of sheath materials, and discloses an anti-aging sheath material for an electronic wire and a preparation method thereof, the sheath material comprises low density polyethylene, an ethylene-vinyl acetate copolymer, an ethylene-octene copolymer, ethylene propylene diene monomer, a triazine ring derivative, ammonium polyphosphate, modified nano silicon dioxide and an auxiliary agent; according to the triazine ring derivative, N-butyl-2, 2, 6, 6-tetramethyl-4-piperidylamine reacts with cyanuric chloride to prepare a triazine ring monosubstituent, hydrazine hydrochloride is used as a bridging agent to react with the triazine ring monosubstituent, and the triazine ring derivative and piperazine are polymerized to prepare the triazine ring derivative. The modified nano silicon dioxide is prepared by enabling 3-(3, 5-di-tert-butyl-4-hydroxyphenyl) propionyl chloride and 4-propenyloxy-2-hydroxybenzophenone to react, and carrying out free radical polymerization on the reaction product on the surface of the nano silicon dioxide. The synergistic effect of mechanical property, thermo-oxidative aging resistance, ultraviolet aging resistance and flame retardant property is realized.

This invention provides a high weather-resistant three-color paint and its preparation method. The high weather-resistant three-color paint includes a white primer, a red primer, a blue primer, a topcoat, a clear coat, and a curing agent. Modified silica is added to the white primer, red primer, blue primer, topcoat, and clear coat. The modified silica is obtained by copolymerizing hydroxyl hyperbranched polymer-coated nano-silica, 2,4-dihydroxybenzophenone-grafted cyanuric chloride, and hydroxyl acrylate. This modified silica possesses a three-dimensional cross-linked network structure, which directly enhances the mechanical properties of the paint film. It also incorporates abundant ultraviolet absorbing groups, significantly improving the weather resistance of the paint film. Simultaneously, the large number of active hydroxyl groups it contains enhances the adhesion of the paint film. During the curing process, the isocyanate groups of the curing agent combine with the hydroxyl-containing components in the system to form a highly integrated and dense paint film structure, further improving the mechanical properties, weather resistance, and optimizing acid and alkali resistance of the paint film.

The invention belongs to the technical field of catalyst preparation, and particularly relates to a novel lignin-based copper catalyst and a preparation method and application thereof. The preparation method comprises the following steps: mixing lignin with cyanuric chloride, heating for reaction, and carrying out suction filtration and washing to obtain cyanuric chloride functionalized lignin; mixing the cyanuric chloride functionalized lignin with benzylamine, reacting, and carrying out suction filtration and washing to obtain benzylamine functionalized lignin; and adding the benzylamine functionalized lignin and cuprous iodide into a solvent, reacting, carrying out suction filtration, and washing to obtain the lignin-based copper catalyst. The lignin-based copper catalyst prepared by the method is low in preparation cost, can be recycled, and has the advantages of mild catalytic conditions, high catalytic efficiency and high yield.

The invention belongs to the field of reactive dye synthesis, and discloses a preparation process of a reddish brown reactive dye, which comprises the following steps: diazotizing 2-naphthylamine-4, 6, 8-trisulfonic acid, coupling with 1-naphthylamine-7-sulfonic acid to obtain a first-couple material, diazotizing the first-couple material again, coupling with m-toluidine to obtain a second-couple material, refining the second-couple material to obtain a color base, and drying to obtain the reddish brown reactive dye. Carrying out primary condensation on cyanuric chloride and 2, 5-aniline disulfonate to obtain a primary condensation material, carrying out secondary condensation on the primary condensation material and a color base, and filtering the secondary condensation slurry to obtain the reddish brown reactive dye primary stock. The preparation process provided by the invention is stable and low in spray drying energy consumption, and the prepared primary pulp has the advantages of high purity and high solid content, and is excellent in solubility and high in fastness to washing.

The invention discloses a corrosion-resistant polypropylene insulated cable and a preparation process thereof, and belongs to the technical field of cables. The corrosion-resistant polypropylene insulated cable sequentially comprises a cable core, a wrapping layer, an inner sheath layer, an armor layer and an outer sheath layer from inside to outside, the inner sheath layer and the outer sheath layer are both made of a corrosion-resistant polypropylene cable material; the corrosion-resistant polypropylene cable material is prepared from the following raw material components: polypropylene, POE (Polyolefin Elastomer), a plasticizer, a composite flame retardant, a heat-conducting filler, a lubricant, an ultraviolet light absorber and a nucleating agent, the composite flame retardant is prepared from the following raw materials: cyanuric chloride, 4-hydroxymethyl-1-oxo-1-phospha-2, 6, 7-trioxabicyclo [2.2. 2] octane, hydroxyl N-alkoxy hindered amine, ethidene diamine and N-(2-aminoethyl) maleimide; the heat-conducting filler is prepared from the following raw materials: graphene oxide, a silane coupling agent, boron nitride and 3, 5-di-tert-butyl-4-hydroxycinnamic acid; the corrosion-resistant polypropylene insulated cable prepared by the invention is relatively good in corrosion resistance, heat dissipation performance, flame retardance, thermo-oxidative aging resistance and mechanical property.

The application discloses a bulletproof composite material and a preparation method thereof, and relates to the technical field of bulletproof composite materials.The bulletproof composite material is composed of aramid fiber and a resin matrix, wherein the resin matrix comprises the following raw materials in parts by weight: 60-70 parts of epoxy resin, 5-8 parts of a modified toughening agent, 4-5 parts of a curing agent, 1-2 parts of a heat stabilizer, 1-2 parts of an inorganic filler, 0.5-1 parts of a coupling agent and 2-5 parts of a wetting agent;the intermediate 1 is generated by the reaction of cyanuric chloride and 4-hydroxyphenylboronic acid;the intermediate 2 is generated by the reaction of the intermediate 1 and 3-amino-1,2-epoxypropane;the intermediate 3 is generated by the reaction of the intermediate 2 and cystamine;and the modified toughening agent is generated by the reaction of the intermediate 3 and dopamine.The bulletproof composite material prepared by the application has good ballistic protection performance, anti-multiple impact performance and self-repairing performance.

The application relates to the dye technology field, and particularly discloses a pyrimidine acid observation blue active dye, a preparation method and application thereof. A trichloropyrimidine is introduced as an active group on the basis of the observation blue structure, the reactivity of the trichloropyrimidine is lower than that of the cyanuric chloride structure, the pyrimidine acid observation blue active dye is more stable after being combined with cellulose fibers, is not easy to hydrolyze, the acid and alkali resistance of a 'dye-fiber' covalent bond is better, and the dyeing performance is more superior; in addition, water-soluble groups such as sulfonic acid groups and carboxyl groups are introduced to improve the water solubility of the pyrimidine acid observation blue active dye. Furthermore, the pyrimidine acid observation blue active dye prepared by the application has good dyeing effects on acrylic fibers, spandex and other chemical fiber fabrics and blended fiber fabrics, further improves the adaptability of the observation blue, the dyeing is stable, the color is deep, the fixation effect is good, meanwhile, the acid and alkali resistance of the fabric is improved, and the application prospect is wide.

The application provides a long-acting antibacterial chinlon composite fiber and a preparation process thereof, and belongs to the technical field of composite fibers; the preparation process comprises the following steps: preparing a modifier; preparing modified graphite; preparing an antistatic modified chinlon fiber; preparing an antibacterial treatment solution; and preparing a chinlon composite fiber.The intermediate is generated by the reaction of cyanuric chloride and N,N-dimethylpropylenediamine, and then the intermediate is reacted with 1,3-propanesulfonic acid lactone to generate an antibacterial agent; the antibacterial agent is prepared into an antibacterial treatment solution and added to the antistatic modified chinlon fiber after pretreatment, so that the antibacterial agent is connected to the surface of the fiber, the antistatic modified chinlon fiber has good washing-resistant antibacterial performance, and then the bond energy is enhanced through heat treatment, so that the washing-resistant antibacterial performance of the antibacterial agent is further improved, and the chinlon composite fiber prepared has long-acting antibacterial effect.

The invention relates to the technical field of synthesis of carbon nitride flame-retardant materials, and particularly discloses a synthesis method of melam, which comprises the following steps: by taking cyanuric chloride as a raw material, carrying out ammoniation and coupling to obtain a bis-triazine intermediate, and carrying out sealed ammoniation on the bis-triazine intermediate by using ammonia water to obtain melam; the optimal potassium tert-butoxide enables the BDCAT to be obtained at the yield of more than 60% in the second-step reaction, the ammonia water ammoniation process used in the third-step reaction is relatively safe, the synthesis method is simple and efficient, and the harsh requirement of a high-temperature and high-pressure method on equipment is avoided.

The invention relates to the field of cables, and discloses an aerial insulated cable, a protective layer of which is prepared from the following materials: low-density polyethylene, nitrile rubber, ethylene-vinyl acetate copolymer, modified composite filler, functional additive and the like. The modified composite filler is prepared by grafting a modified silane coupling agent and Na-montmorillonite loaded titanium dioxide; the modified silane coupling agent is prepared by reacting p-hydroxybenzaldehyde with phosphorus oxychloride, then carrying out addition with DOPO (9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide), reacting the obtained product with p-aminodiphenylamine, and then carrying out substitution with 3-chloropropyltriethoxysilane; the functional additive is prepared by the following steps: reacting 3, 5-di-tert-butyl-4-hydroxybenzaldehyde with 2-amino-4-methylbenzothiazole, then adding sodium borohydride for reductive amination, substituting the obtained product with cyanuric chloride, and then reacting with N-butyl-2, 2, 6, 6-tetramethyl-4-piperidylamine, and the functional additive is prepared by the following steps: reacting 3, 5-di-tert-butyl-4-hydroxybenzaldehyde with 2-amino-4-methylbenzothiazole; and the protective layer material is endowed with good flame retardance, antibacterial property and long-acting aging resistance.

The application discloses a preparation method of a nano TiO2 composite fluorescent whitening agent and relates to the technical field of fluorescent whitening agents. The method comprises the following steps: firstly, one-time condensation is carried out on cyanuric chloride and 4,4'-diamino-stilbene-2,2'-disulfonic acid; secondly, secondary condensation is carried out on diethanolamine, and quaternary ammonium is formed by using epichlorohydrin in the secondary condensation process; finally, tertiary condensation is carried out on amino nanoparticles, so that the nano TiO2 composite fluorescent whitening agent is obtained. The nano TiO2 composite fluorescent whitening agent prepared by the application has the characteristics of good ultraviolet aging resistance and water solubility.

The application relates to the field of sealing rings and discloses a silicon rubber sealing ring for capacitors and a preparation method thereof, which comprises the following components: silicon rubber, modified multi-walled carbon nanotubes, hyperbranched triazine-based additives, vulcanizing agents and lubricants; the modified multi-walled carbon nanotubes are prepared by modifying multi-walled carbon nanotubes after introducing double bonds into a benzotriazole intermediate and glycidyl methacrylate in a hydrogen-containing silicone oil molecular chain through a silicon hydrogen addition reaction; the benzotriazole intermediate is prepared by substitution between 2-(2,4-dihydroxyphenyl)-2H-benzotriazole and acryloyl chloride; the hyperbranched triazine-based additives are prepared by nucleophilic substitution reaction with a diamino phosphorus antioxidant prepared by reaction between phenylphosphoryl dichloride and p-phenylenediamine and cyanuric chloride as a monomer; the application is provided with good mechanical properties, antistatic properties, flame retardant properties and aging resistance by adding the modified multi-walled carbon nanotubes and the hyperbranched triazine-based additives.

The present invention relates to the technical field of nano-carbon materials, and in particular to a kind of synthetic method of electrochemically active azine alkyne carbon material. Calcium carbide (CaC2) and cyanuric chloride (C3Cl3N3) are uniformly mixed by synthetic method of the present invention, then added into a ball mill and carried out mechanochemical reaction, and the product obtained is washed with 0.1mol / L dilute nitric acid, acetone and deionized water, and then the washed product is freeze-dried to obtain azine alkyne carbon material. The present invention utilizes cyanuric chloride monomer and calcium carbide to synthesize C N heterocyclic azine alkyne carbon material in a controllable structure for the first time through the method for mechanochemical action, while realizing its morphology and structure controllable preparation; During the process, no solvent is needed, operating conditions are mild, chemical effect is remarkable, principle is simple, raw material cost is low and easy to industrial production, the azine alkyne carbon material obtained is made as lithium ion battery negative electrode material, the performances such as charge and discharge capacity, cycle life of composite material can be improved, and it is of great significance for the development of new energy.

The invention relates to an intumescent flame retardant as well as a preparation method and application thereof, and belongs to the technical field of flame-retardant materials. The method comprises the following steps: reacting phosphoric acid with pentaerythritol under a first reaction condition to prepare an intermediate; and adding cyanuric chloride or a derivative thereof into an organic solvent in the presence of alkali, then adding the prepared intermediate, and reacting under a second reaction condition to prepare the target product intumescent flame retardant. Through precise molecular design and step-by-step chemical synthesis, three components, namely an acid source, a carbon source and a gas source, which are physically mixed and have independent functions in a traditional intumescent flame retardant system are integrated into a single molecular structure, so that the prepared intumescent flame retardant is stable and reliable in flame retardant property, the hydrolysis resistance and durability of the flame retardant are remarkably improved, and the flame retardant has good application prospects. The requirements on efficient, lasting and stable flame retardants are met.

The invention relates to the field of spinning, and discloses a multistage self-polymerization cross-linking agent as well as a preparation method and application thereof. The method comprises the following steps: (1) preparing raw materials including cyanuric chloride, para-ester, monoamino hydroxyaniline, diaminobenzene sulfonic acid, a neutralizer and a composite solvent; (2) carrying out a reaction on cyanuric chloride, para-ester, monoamino hydroxyaniline and diaminobenzene sulfonic acid in a composite solvent, and controlling the pH value of a system in the reaction process to be 4-7 by adopting a neutralizer to prepare a multistage self-polymerization cross-linking agent dispersion liquid; and (3) carrying out reduced pressure distillation on the multi-stage self-polymerization cross-linking agent dispersion liquid to remove the composite solvent in the multi-stage self-polymerization cross-linking agent dispersion liquid to prepare the multi-stage self-polymerization cross-linking agent. The multistage self-polymerization cross-linking agent provided by the invention can realize cross-linking reaction with fibers under the condition of dyeing natural fibers by reactive dyes and in the dyeing process, the implementation process is simple and easy to implement, and the multistage self-polymerization cross-linking agent is convenient to use.

The application discloses a fluorescent whitening functional auxiliary and a production process thereof, and relates to the technical field of functional dyes. The fluorescent whitening functional auxiliary comprises the following raw materials in parts by weight: 35-45 parts of a fluorescent whitening agent, 8-10 parts of gamma-cyclodextrin, 4-6 parts of a pH buffer, 2-3 parts of a dispersing agent, and 50-70 parts of deionized water. In the application, L-cysteine is reacted with 2-methyl-2-propenoic acid-2,2,6,6-tetramethyl-4-piperidyl ester to generate a sulfide compound, 4,4'-diaminostilbene-2,2'-disulfonic acid is reacted with cyanuric chloride to generate a monosubstituted compound, the monosubstituted compound is reacted with 7-hydroxy-4-methylcoumarin to generate a disubstituted compound, and the disubstituted compound is reacted with the sulfide compound to generate the fluorescent whitening agent. The fluorescent whitening functional auxiliary prepared in the application has excellent dispersibility, stability and anti-aging performance.

The invention belongs to the technical field of membrane materials, and discloses a high-flux acid-resistant nanofiltration membrane and a preparation method thereof. The method comprises the following steps: (1) coating a porous supporting base membrane with a nitrogen heterocyclic quaternary ammonium salt aqueous solution, infiltrating, and removing excess liquid; (2) coating the surface of the membrane prepared in the step (1) with an n-hexane solution dissolved with cyanuric chloride, and infiltrating to enable the nitrogen-containing hybridized quaternary ammonium salt and cyanuric chloride to be subjected to a substitution reaction; after the reaction is finished, drying to obtain a nanofiltration membrane; wherein the structure of the nitrogen-containing heterocyclic quaternary ammonium salt is nitrogen-containing heterocyclic quaternary ammonium salt containing two or more amino groups, a quaternary ammonium group is positioned on a nitrogen heterocyclic ring, the amino groups are positioned on the nitrogen heterocyclic ring or are directly connected with carbon atoms forming the nitrogen heterocyclic ring, and counter ions are Cl <->, Br <-> or I <->. According to the invention, specific nitrogen-containing heterocyclic quaternary ammonium salt is designed as a water-phase monomer, so that cyanuric chloride is subjected to trisubstitution reaction at room temperature to form a compact separation layer.

The invention discloses a flame-retardant thermoplastic elastomer and a preparation method thereof, and relates to the technical field of high polymer materials. When the flame-retardant thermoplastic elastomer is prepared, cyanuric chloride sequentially reacts with 4-(phenylamino) benzaldehyde and N-(2-aminoethyl) maleimide to prepare a functional cross-linking agent; the preparation method comprises the following steps: grafting a vinyl phosphorus-containing monomer and 2-(2H-benzotriazole-2-yl)-4-methyl-6-(2-propenyl) phenol onto lignin through a free radical graft polymerization method to prepare modified lignin; the preparation method comprises the following steps: polymerizing polycaprolactone glycol and isophorone diisocyanate, and carrying out chain extension by using a bis (hydroxyethyl) furan monomer, so as to prepare polyurethane; uniformly mixing polyurethane, the modified lignin, a functional cross-linking agent and N, N-dimethyl formyl, drying and curing to obtain the flame-retardant thermoplastic elastomer. The flame-retardant thermoplastic elastomer prepared by the invention has the advantages of flame retardance, ultraviolet aging resistance and self-healing.

The invention discloses an intrinsic micropore degradable polymer material based on biomass and hetero-calixarene and a preparation method and application thereof.The method comprises the steps that firstly, cyanuric chloride and resorcinol serve as raw materials, and oxygen atom bridged hetero-calixarene macrocyclic molecules are synthesized in one step under the alkaline condition through a one-pot method; then introducing the lignin derivative into oxygen atom bridged hetero calixarene by utilizing an aromatic nucleophilic substitution reaction on a triazine ring in a macrocyclic molecule, and carrying out a condensation reaction on the obtained multi-aldehyde functionalized oxygen atom bridged hetero calixarene and polyfunctional mercaptan under an acidic condition to obtain the target degradable polymer material. When in use, the material is directly put into an aqueous solution of elemental iodine, iodine negative ions and divalent mercury ions for adsorption. The removal rate of the material to low-concentration iodine simple substances, iodine negative ions and divalent mercury ions can reach 90% or above, and the material after adsorption can be repeatedly used after being washed by an acidic aqueous solution. The material can be degraded under an alkaline condition.

The invention discloses a Pd / 3-CN polymer catalyst as well as preparation and application thereof. The preparation method of the Pd / 3-CN polymer catalyst comprises the following steps: fully mixing cyanuric chloride, 3, 5-diamino-1, 2, 4-triazole, potassium carbonate and potassium tetrachloropalladate, uniformly grinding, transferring the obtained solid powder into a hydrothermal reactor, reacting at 80-160 DEG C for 12-24 hours, washing the obtained solid, performing Soxhlet extraction, and drying to obtain the Pd / 3-CN polymer catalyst. The Pd / 3-CN polymer catalyst is obtained. The invention provides the application of the Pd / 3-CN catalyst in the reaction of preparing the styrene compound by hydrogenation of the phenylacetylene compound, and the Pd / 3-CN catalyst can realize high phenylacetylene compound conversion rate and high styrene compound selectivity within a short reaction time.