1000 results about "Cyanuric chloride" patented technology

A process for preparing 2-(2,4-dihydroxyphenyl)-4.6-diaryl-s-triazines in three steps starting with cyanuric chloride is described. Step 1 involves the nucleophilic (basic) displacement of one chlorine atom with a phenolic moiety. Step 2 involves a Friedel-Crafts reaction using a Lewis acid catalyst (preferably aluminum chloride) to replace the remaining two chlorine atoms with aryl groups such as xylyl. Finally, step 3 involves replacing the phenolic moiety with resorcinol using either a Lewis acid or protic acid catalyst or combinations thereof. Some additional processes only peripherally related to the three-step process outlined above are also described for the preparation of various s-triazine compounds. The s-triazines prepared are useful as UV absorbers for the stabilization of organic substrates against the adverse effects of actinic light.

The invention provides a preparation method of a modified graphene oxide, comprising the following steps of: (a) reacting a phosphorus oxychloride compound, cyanuric chloride or diisocyanate with glycidol to obtain an intermediate product; and (b) dispersing graphite oxide in an organic solvent, dropwise adding to the intermediate product obtained through reaction, and reacting to obtain the modified graphene oxide. The invention also provides a preparation method of a composite material containing the modified graphene oxide, comprising the following steps of: dispersing the modified graphene oxide obtained through the preparation method in the technical scheme in an organic solvent, mixing the modified graphene oxide containing epoxide groups with epoxy resin oligomers and a polyamide curing agent, and curing to obtain the composite material containing the modified graphene oxide. In the composite material provided by the invention, the modified graphene oxide reacts with a resin substrate, is more uniform to disperse in the obtained composite material, and has better flame-retarding performance.

A triazine carbonific containing aromatic chain structure, the carbonific is obtained by aromatic binary compound and monosubstituted cyanuric chloride with structural general formula being NH2-Ar-NH2, HO-Ar-OH or HS-Ar-SH under catalyst action. The invention further claims a method of preparing the triazine carbonific containing aromatic chain structure. Compared with the prior art, the invention has the advantages that: the triazine halogen-free flame retardant obtained by the invention has high thermal stability, high char rate under high temperature; the reaction process is one kettle way continuous reaction, and the preparation process is simple, the intermediate does not need to be processed; the post process method is simple, and the reaction time is short, the yield is high; the invention can effectively save energy consumption, improve the production efficiency and reduce the production cost.

The invention discloses an oxa-phosphaphenanthrene flame retardant compound containing the sym-triazine structure and a preparation method thereof. The method is characterized in that an intermediate is synthesized from 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide(DOPO) and p-hydroxybenzaldehyde as raw material by the solution method, and then reacts with cyanuric chloride in the presence of phase transfer catalyst to obtain a 2,4,6-tri(4-(10-methenyl hydroxy-9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide)phenoxy)-1,3,5-triazine product. The compound is white crystal, and has a melting point of 166 to 169 DEG C, good thermal stability and high flame retardation efficiency, and can be adopted as a reactive flame retardant for the flame retardation of thermosetting resins such as epoxy resin, polyurethane and the like, and also as an additive flame retardant for the flame retardation of engineering plastics such as ABS, nylon and the like.

The invention relates to a triazine series oligomer and the compound method. The method has the following steps: adding solvent into cyanuric chloride, dropping alkylol amine and acid roping agent to gain substitute of cyanuric chloride; heating, dropping diamidogen and acid roping agent to gain the substitute of cyanuric chloride; adding diamidogen and acid roping agent into reaction solution, heating, pumping, washing, and drying to gain triazine series oligomer. The invention has strong charring and expanding ability, and good thermal stability. It has advantages of continuously reaction process, short reaction time, simple compounding technology, little organic solvent, and easy to recycle organic solvent.

The invention relates to a quick, energy-saving and high-yield preparation method of quasi-graphite-structure carbon nitride catalysis materials and application of the materials, belonging to the field of preparation and application of catalysis materials. According to the preparation process, one or multiple nitrogen-rich small organic molecules of urea, melamine, thiourea, cyanamide, dicyanamide, cyanuric chloride and cyanuric acid is / are taken as raw materials, a simple metal substance, a metallic oxide, a metal sulfide and a metal chloride are taken as microwave absorbers, microwave is taken as a heating source, and under the condition of radiation of microwave, the quasi-graphite-structure carbon nitride material can be quickly prepared. The prepared carbon nitride material has a large specific area and crystallinity and has high photocatalytic water decomposition hydrogen production performance and organic pollutant degradation performance. The preparation method provided by the invention is short in time, small in energy consumption, high in production efficiency and simple in process, does not have harsh preparation conditions, is easy to operate and has wide application prospect.

The invention discloses modified graphene and a preparation method thereof. The method comprises the following steps: performing oxidation treatment on natural flake graphite to obtain graphene oxide, and enabling graphene oxide to react with sulfoxide chloride to obtain graphene containing acyl chloride groups on the surface; then performing nucleophilic substitution reaction with 1,3-propane diamine, cyanuric chloride and a dihydric alcohol compound in sequence to obtain water-soluble graphene with hydroxyl groups on the surface, wherein the hydroxyl group content is 0.005-0.02%. Obtained modified graphene has relatively good water solubility, and is beneficial to stable dispersion of graphene; by adopting the characteristics of modified graphene, modified graphene can be mixed and uniformly dispersed with other concrete preparation materials very conveniently to prepare a reinforcing and toughening concrete product. In addition, operating conditions for preparing modified graphene can be easily met; moreover, modified graphene disclosed by the invention is easily-available in raw material, can be used for effectively reducing the cost and improving the economic benefits, and has relatively good application prospects.

Methods are described for conjugating radioiodinated peptides or carbohydrate structures to proteins with improved yields and qualities of conjugates. In one method, specially designed radioiodinated bifunctional peptides containing nonmetabolizable amide bonds are coupled to antibodies. In a second method, radioiodinated nonmetabolizable bifunctional peptides, which also contain aminopolycarboxylates, are coupled to antibodies. In a third method, radioiodinated bifunctional aminopolycarboxylates are coupled to antibodies. In a fourth method, a hydrazide-appended antibody is coupled to a radioiodinated carbohydrate or a thiolated antibody is coupled to a hydrazide-appended and radioiodinated carbohydrate. In a fifth method a monoderivatized cyanuric chloride is used to conjugate thiolated antibody. Radioiodinated residualizing antibody conjugates made by these methods are particularly stable in vivo and are suitable for radioimmunodetection and radioimmunotherapy.

The invention relates to a method for preparing a cationic grafting agent with multi-reactive groups, which comprises the following steps: adding N,N-dimethyl diaminopropane or N,N-dimethylaminoethanol and hydrochloride solution of N,N-dimethylamino propanol into cyanuric chloride water suspension at the temperature of 0-10 DEG C, leading the molar ratio of cyanuric chloride to the N,N-dimethyl diaminopropane or the N,N-dimethylaminoethanol and the N,N-dimethylamino propanol to be 1: 0.34, using base for adjusting and controlling the pH to be 3-4, increasing the temperature to 35-45 DEG C after full reaction, and further adding the N,N-dimethyl diaminopropane or the N,N-dimethylaminoethanol, leading the molar ratio of the N,N-dimethyl diaminopropane or the N,N-dimethylaminoethanol to the cyanuric chloride to be 0.4:1, using hydrochloric acid for adjusting the pH to be 1-2 after full reaction, increasing the temperature to 70-85 DEG C, adding epichlorohydrin, leading the molar ratio of the epichlorohydrin to the cyanuric chloride to be 0.7:1, and obtaining a monochlorotriazine ammonium chloride derivative. The grafting agent is used for graft modification of fabric, thereby improving the dyeing effect.

The invention discloses a preparation method for a triazine hyperbranched macromolecular carbon forming agent. The method is characterized by comprising the following steps: 1), mixing diamino or hydroxyl compound with non-protonic organic solvent, and adding catalyst in the atmosphere of inert gases; 2), dropwise adding cyanuric chloride non-protonic organic solution, and continuing the reaction at the temperature after finishing dropwise adding the cyanuric chloride non-protonic organic solution; 3), adding blocking agent, and carrying out reaction again; and 4), precipitating, filtering, cleaning the organic solvent, separating, and drying to obtain the triazine hyperbranched macromolecular carbon forming agent. Compared with the prior art, the invention has the advantages that the 'one-pot' method is adopted, the reaction process is continuous, the reaction time is short, the product has favorable heat stability, the carbon forming rate is high, and the processability is good.

The invention discloses a magnetic PAFs solid-phase extracting agent. A preparation method of the magnetic PAFs solid-phase extracting agent includes allowing 3-aminopropyl triethoxy silylation ferroferric oxide to have a temperature-programmed reaction with piperazine and cyanuric chloride in the presence of N, N-diisopropylethylamine to obtain the magnetic PAFs solid-phase extracting agent. The magnetic PAFs solid-phase extracting agent and the preparation method thereof have the advantages that the prepared magnetic PAFs solid-phase extracting agent is good in dispersity and stable in core-shell structure; the preparation method is simple, low in cost, widely applicable, capable of achieving repeated material recycling, and the like; a covalent organic framework bonded to the ferroferric oxide can provide various action sites such as an inclusion interaction site, a hydrogen-bond interaction site, a pi-pi interaction site and an anion exchange site, so that the covalent organic framework has specific recognition and retention acting force on polar substances such as phenols and carboxylic acids.

The invention discloses a expansion-type charring agent for a flame-retardant polyolefine material and a synthesis method thereof. The synthesis method comprises the following steps: by using cyanuric chloride as an initial raw material, dropwisely adding amine containing benzene ring, phenol or thiophenol and an acid binding agent into an ice bath to obtain a monosubstituted compound; dropwisely adding aliphatic diamine or aliphatic dibasic alcohol and an acid binding agent, heating to 40-60 DEG C to react, thereby obtaining a disubstituted compound; and finally, dropwisely adding the aliphatic diamine or aliphatic dibasic alcohol and the acid binding agent, heating to 80-110 DEG C, refluxing with a condenser, cooling, washing, and drying to obtain the expansion-type charring agent containing benzene ring, triazine ring and diamino or dialkoxy group. The reaction process adopts a one-pot method, and thus, the invention has the advantages of simple technique, short reaction time and environmental protection in the preparation process; the product has the advantages of high thermal stability, favorable charring effect, low water absorptivity and favorable compatibility with alkene polymers; and after being compounded with ammonium polyphosphate (APP), the product is applicable to polyolefin materials, and has favorable flame-retardant effect.

The invention discloses a bicyclic phosphate-based triazine derivative flame retardant and a preparation method thereof. The flame retardant is prepared by the condensation polymerization of cyanuric chloride and 1-oxide-4-hydroxymethyl-2,6,7-trioxa-1-phosphabicyclo [2,2,2] octane. The preparation method has the advantages of easy acquisition of raw materials and simple operation. The prepared flame retardant contains a carbon source, an acid source and a foaming source, greatly exerts the advantages of the PEPA and the triazine structure in flame retardant applications, is favorable for exerting the synergistic flame retardant action of nitrogen and phosphorus, and can effectively improve the defects of the traditional compound flame retardant. The bicyclic phosphate-based triazine derivative flame retardant has large molecular weight, has the advantages of high heat stability, good migration resistance and the like, and can be used as a single intumescent flame retardant (IFR) or can be compounded with other components to form an IFR system to be applied to material flame retardant modification.

The invention provides a preparation method of symmetric and asymmetric toluylene triazine liquid fluorescent brightener composite expressed by the structural formulas (III), (VI) and (V), comprisingthe following steps: taking cyanuric chloride, sulfanilic acid, 4, 4-diaminobenzil-2, 2-disulfonic acid, morpholine and diethanol amine as raw materials; synthesizing by the three steps of reaction; and desalinating and filtering by means of nanofiltration membrane filtration. The liquid fluorescent brightener composite has a built synergistic effect and better brightening effect than a single composite; and the method not only can improve the quality of the fluorescent brightener, but also can reduce the consumption of amounts of raw materials, and greatly elevates product yield and quality.

The present invention relates to a ternary composite material preparation method, and belongs to the technical field of material science, nanometer materials, catalysis and the like. According to the present invention, a cyanuric chloride hexahydroxy carboxylic acid ligand and copper nitrate are adopted as raw materials to prepare the hydrothermally stable porous metal organic framework material Cu-MOF, Cu-MOF is adopted as a carrier, nanometer silver is anchored on the surface of the carrier, and a porous titanium dioxide shell layer is coated to prepare the ternary composite material Cu-MOF@Ag@TiO2. The composite material has the excellent performance of catalytic reduction of unsaturated organic compounds, and has good application prospects in heterogeneous catalytic reduction reactions.

The present invention relates to a preparation method and applications of a mesoporous metal organic complex base composite material, and belongs to the technical fields of material science, nanometer materials, chemical industry, catalysis and the like. According to the present invention, copper nitrate, a cyanuric chloride tricarboxylic acid H3L and tetraethyl orthosilicate are subjected to one-step ultrasound to prepare Cu-MOF@SiO2, the Cu-MOF@SiO2 is impregnated in a silver nitrate solution, and ultraviolet irradiation is adopted to reduce Ag<+> to prepare the magnetic metal organic polymer-supported noble metal catalyst with the nanometer Ag anchored on the surface, wherein the catalyst is the Cu-MOF@SiO2@Ag. The catalysis has the excellent performance of catalytic reduction of unsaturated organic compounds, and has good application prospects in heterogeneous catalytic reduction reactions.

The invention discloses a multihole metal porphyrin organic covalent polymeric material and a preparation method and application of the material. The polymeric material takes tetra-amino phenyl porphyrin as a basic raw material and is polymerized by reaction with cyanuric chloride under a mild condition to form a multihole organic covalent polymeric material CPF-1; the CPF-1 is a basic carrier and is further synthesized into the metal porphyrin organic covalent polymeric material Mn-CPF-1 with a large porphyrin ring loaded with metal ions Mn III through the reaction with manganese metal salt. The multihole metal porphyrin organic covalent polymeric material is applied to catalytic epoxidation olefin and catalytic oxidization aromatic hydrocarbon; the reaction condition is mild; pollution is avoided; the stability is high; the cost is low; a catalyst can be simply recycled and reused; the multihole metal porphyrin organic covalent polymeric material is high in conversion rate; a product is high in selectivity; the post-treatment is simple.

The invention discloses a polyurethane phase-change material containing polyethylene glycol (PEG) regulated by functionalized graphene and a preparation method of the polyurethane phase-change material. The polyurethane phase-change material adopts the structure as shown in the description. The composite phase-change material has nitrogen-series organic flame-retardant molecules, graphite oxide, cyanuric chloride, a diphenyl-methane-diisocyanate compound and PEG are taken as raw materials, and a polymerization method is utilized to prepare the polyurethane phase-change material containing polyethylene glycol regulated by functionalized graphene. According to the polyurethane phase-change material, PEG can realize leakage resistance, high thermal conductivity and excellent thermal stability in the same framework material, and the addition of PEG with controllable molecular weight is changeable; and the phase-change material with controllable phase-change temperature and enthalpy change is prepared.

The invention relates to the field of microorganisms, in particular to an extreme halophilic bacterium, a compound halophilic bacterium agent and application thereof. The extreme halophilic bacteria obtained through screening are respectively salt monad CGMCC NO.3081, pseudomonad CGMCC NO.3082 and bacillus CGMCC NO.3083. The invention also provides the compound halophilic bacterium agent containing the extreme halophilic bacterium. The invention obtains three extreme halophilic bacterium strains with the salt tolerance of 15-25 percent through separation, a compound extreme halophilic bacterium agent formed by compounding the three extreme halophilic bacterium strains can effectively process high salt cyanuric chloride production waste water, and compared with other processing technologies, the method better conforms to the state policies of circular economy and energy saving and emission reduction, can save a large number of running cost and realize the resource processing of waste water.

The invention provides a method for preparing a composite nanofiltration membrane by employing an interfacial polymerization process. The method comprises: taking an ultrafilter membrane as a porous supporting layer, selecting cyanuric chloride and / or phosphonitrilic chloride trimer as an oil-phase solute which is subjected to a polymerization reaction with a water-phase solute at the interface of the two phases, controlling the reaction temperature to activate all groups in the reaction monomers, and introducing different active nucleophilic reagents step by step to connect to specific groups, so as to form a membrane selection layer with a loose structure on the surface of the porous supporting layer. Experiments confirm that the composite nanofiltration membrane prepared by utilizing the method is applicable to separation of low-molecular-weight organics and inorganic salts, monovalent ions and divalent ions, and the like; and the composite nanofiltration membrane has the advantage of low operation pressure, helps to effectively save energy consumption and has good application prospect.

The invention discloses a nano zirconium phosphate-modified triazine macromolecular charring agent, and a preparation method and application thereof. The preparation method comprises the following steps: using a silane coupling agent to modify nano zirconium phosphate in an intercalation manner, and preparing an intermediate product through an organic solvent, cyanuric chloride, the silane coupling agent-modified nano zirconium phosphate through intercalation, a diamine monomer and an acid-binding agent; performing in-situ polymerization reaction on the organic solvent, the intermediate product, the diamine monomer and the acid-binding agent to prepare the nano zirconium phosphate-modified triazine macromolecular charring agent. Compared with the prior art, the macromolecular charring agent prepared by the invention is excellent in thermal stability and charring property, has a good synergistic flame-retardant effect with ammonium polyphosphate, and can effectively improve the thermal stability and the compactness of an expandable carbon layer under the high temperature condition, so that the flame-retardant efficiency of an intumescent flame retardant is remarkably improved. A prepared flame-retardant polypropylene material can be widely used in fields of automotive exteriors, furniture, appliances, wires, cables, construction materials and the like.

The invention discloses a single-component phosphor-nitrogen double-ring cage-shaped macromolecular intumescent flame retardant as well as a preparation method and an application thereof. the preparation method comprises the following steps: at 90-110 DEG C, a nucleophilic substitution reaction is carried out between pentaerythritol and phosphorous oxychloride, and PEPA is obtained; a reaction between PEPA and cyanuric chloride is carried out at -5-10 DEG C for 3-6 hours, a reaction between a product and a diamine compound is carried out at 50-60 DEG C for 5-10 hours, and then a reaction between the product and the diamine compound is carried out at 90-110 DEG C for 5-10 hours; finally the single-component phosphor-nitrogen double-ring cage-shaped macromolecular intumescent flame retardant is obtained for flame retardant modification of polymers. Compared with the prior art, the prepared single-component macromolecular intumescent flame retardant has the advantages of high flame retardation efficiency, good compatibility with polymers, etc.; the intumescent flame retardant whose weight is 20-25 wt% of polypropylene can be added into the polypropylene for endowing the polypropylene with good flame retardation performance, and the intumescent flame retardant can be widely applied to the fields of internal and external decorative parts of automobiles, furniture and electric appliances, wires and cables, building material, etc.

The invention discloses a method for preparing an organic ternary polycarboxylic acid dustless antirust additive 2,4,6-tri(amino caproyl)-1,3,5-triazine by adopting a one-pot method, which comprises the following steps of: ring-opening caprolactam with alkali to generate carboxylate of aminocaproic acid first; then performing a substitution reaction by the carboxylate of aminocaproic acid and cyanuric chloride; and finally, acidizing with hydrochloric acid to prepare derivatives of organic ternary polycarboxylic acid. The preparation method is free from a toxic organic solvent and employs common water as a solvent for reaction. The preparation method ha the advantages of simple process operation, low production cost and low environmental pollution and is more suitable for large scale industrial production.

The invention provides a triazine quaternary ammonium salt halamine antibacterial agent. The triazine quaternary ammonium salt halamine antibacterial agent is a compound with a structure as shown in a formula (I) in the specification. The preparation method comprises the following steps: (1) dropwise adding an organic solution of 2,2,6,6-tetramethyl-4-piperidylamine into an aqueous or organic solution of cyanuric chloride or cyanuric fluoride, and carrying out a reaction for 1 to 4 h; (2) pouring an aqueous solution of chlorinated N-(2-ethylamino)-pyridine into the reaction solution, carrying out a reaction for 2 to 6 h, dropwise adding an acid-binding agent in the whole process of the reaction, and allowing the pH value of the reaction solution to be 5.0 to 8.0; (3) after the reaction is completed, carrying out filtering, purifying and drying so as to obtain a triazine quaternary ammonium salt halamine antibacterial precursor; and (4) placing the triazine quaternary ammonium salt halamine antibacterial precursor into a halogenated solution, carrying out standing at room temperature for 0.5 to 1.5 h, and after completion of standing, carrying out filtering and drying so as to obtain a quaternary ammonium salt halamine antibacterial agent product. The triazine quaternary ammonium salt halamine antibacterial agent provided by the invention is a salt-free reaction-type halamine antibacterial agent with excellent antibacterial properties and good precursor water-solubility.

The invention provides a synthesis method of a porous organic covalent framework material having a triazine structure. According to the present invention, the porous organic covalent framework material COF is synthesized by using melamine and cyanuric chloride as raw materials using dimethyl sulfoxide as a solvent through a hot melt method; the synthesis method has characteristics of cheap and easily available raw materials, simple synthesis process, mild reaction condition, low synthesis cost, high yield and the like; and the synthesized COF material has advantages of high specific surface area, low density and high nitrogen content, and has good application prospects in the fields of adsorption, electrode materials, catalysis and the like.

The invention discloses a phosphoric triazine radical containing fire retarding agent and the preparing method. The method comprises following steps: putting neopentyl glycol phosphite ester and cyanuric acid of same equivalent weight in organic solvent, reacting for 2- 10 hours at normal temperature to 140 Deg. C, getting 1, 3, 5- triazine neopentyl glycol phosphate; then putting got 1, 3, 5- triazine neopentyl glycol phosphate and diamine of same equivalent weight in inert liquid for replace reaction and getting phosphoric triazine radical containing fire retarding agent, the reacting temperature is from normal temperatur to 160 Deg. C, reacting time is 6- 72 hours. The number average molecular weight of product is 2000- 20000, and the decompostion temperature is 240- 400 Deg. C. The invention increases the fire retarding agent's decompostion temperature, which enables it not to decompose during macromolecular material processing; and the expanded fire retarding agent ploymer prepared in this invention contains P, N and C element, which is multifunctional.

The invention discloses a macromolecular expansion type flame retardant containing a hindered amine structure and a preparation method and application of the macromolecular expansion type flame retardant. The preparation method comprises the following steps: preparing a substituted hindered amine triazine compound through nucleophilic substitution between a hindered amine monomer and cyanuric chloride under the condition of -5 DEG C to 10 DEG C; reacting the substituted hindered amine triazine compound with phosphorodiamidate and the like in sequence respectively under the conditions of 40 DEG C to 60 DEG C and 90 to 120 DEG C; and finally preparing the macromolecular expansion type flame retardant containing the hindered amine structure, and applying the macromolecular expansion type flame retardant to flame retardant modification of a polymer. Compared with the prior art, the macromolecular expansion type flame retardant prepared by the method has excellent heat stability, charring property and water-proof property, polypropylene can be endowed with good flame retardant property and weatherability after a little of flame retardant is added, and the prepared flame retardant polypropylene material can be widely applied to the fields such as automobile exteriors, furniture and appliances, electric wires, building materials and the like.

The invention discloses a hyperbranched triazine charring agent microcapsule flame retardant. The hyperbranched triazine charring agent microcapsule flame retardant is characterized in that a solvent of cyanuric chloride, diamine and disperse cyanuric chloride, a solvent into which diamine is dissolved, a flame retardant, a surfactant and an acid-binding agent are taken as raw materials; the microcapsule flame retardant taking a hyperbranched triazine charring agent as a coating layer and taking the flame retardant as a core is obtained from the cyanuric chloride and the diamine under the action of the acid-binding agent and the surfactant. The hyperbranched triazine charring agent microcapsule flame retardant disclosed by the invention is continuous in reaction process, short in reaction time, and high in production efficiency, the reaction cost is reduced, the flame retardant has better heat stability, high charring property, good dispersion property and good flame retardant property in a polymer; the flame retardant product is good in overall performance; the hyperbranched triazine charring agent microcapsule flame retardant can be widely applied to polymer materials such as plastics, rubber, coatings and adhesives, and has a broad application prospect.

The invention relates to a multifunctional reactive ultraviolet absorbent which is used for cotton fiber, a synthetic method and application, the general formula I of the absorbent is as the right formula, the synthetic method comprises that: triclosan antibacterial compounds, hindered amine light stabilizing compounds or amino silicone oil softening finishing compounds and other functional finishing agents are added into cyanuric chloride, the solvent is water, the reaction time is 1-2h, at 0-5 DEG C, the groups of functional finishing agents are introduced; (2) the materials connecting the groups are added, the solvent is water, the reaction time is 3-4h, at 40-50 DEG C, the two triazine rings are connected; (3) or with other reacting active material, water as the solvent, reacting 3-4h, at 80-90 DEG C, other active groups are introduced on the triazine rings. The multifunctional reactive ultraviolet absorbent has the advantages of good reactivity, water soluble, ultraviolet absorbing capacity and other finishing functions as antibacterial property, light stability on cotton fabric.

The invention provides a halamine antibacterial agent, its preparation method and application. The halamine antibacterial agent is a compound with a structure shown in formula (I). The preparation method consists of: in the presence of an acid-binding agent, taking cyanuric chloride or cyanuric fluoride or their derivative, and 2, 2, 6, 6-tetramethyl-4-piperidinol as synthesis raw materials to prepare a halamine antibacterial agent precursor with a structure shown in formula (II), and then reacting the precursor with a sodium hypochlorite solution to prepare a halamine antibacterial agent finished product. The halamine antibacterial agent can be applied in textile antibacterial finishing. Specifically, a textile to be treated is dipped in a finishing solution containing the halamine antibacterial agent precursor and a metal salt catalyst for finishing, and finally a halogenation reaction is carried out so as to obtain an antibacterial textile. The method provided in the invention for preparation of the halamine antibacterial agent has the advantages of low cost, simple process, low reaction temperature, no toxicity or pollution, and is in line with the requirements of ecological textile antibacterial finishing. According to the invention, the application process has the characteristics of simple operation and low reaction energy consumption, and antibacterial textiles with good antibacterial properties can be prepared.