54 results about "Benzisothiazolinone" patented technology

The present disclosure is generally directed to a preservative composition including a cycloaliphatic polyetheramine and 1,2-benzisothiazolin-3-one ("BIT"). The preservative composition may include a cycloaliphatic polyetheramine and BIT present at a weight ratio of 100:1 to 1:10.

The invention discloses an antibacterial antifouling agent as well as a preparation method and application thereof. The preparation method comprises the following steps: carrying out chemical grafting on an amino terephthalic acid compound by adopting benzisothiazolinone to prepare a functional ligand; and carrying out a reaction on a metal salt and the functional ligand to prepare the antibacterial antifouling agent. The antibacterial antifouling agent disclosed by the invention shows broad-spectrum antibacterial activity on gram-negative bacteria and gram-positive bacteria, and has anti-algae performance and good biocompatibility; meanwhile, the antibacterial and antifouling agent is compounded into water-based acrylic resin, the obtained coating still has excellent antibacterial and anti-algae performance, the ligand engineering strategy effectively breaks through the bottleneck that traditional MOFs ligands are insufficient in antibacterial activity, and an innovative path is provided for developing long-acting, synergistic and practical MOF-based antibacterial and antifouling materials.

The invention belongs to the technical field of building materials, and discloses a special emulsion for large-particle-size high-air-permeability soft porcelain and a preparation method and application thereof, and the emulsion comprises a seed phase, a core emulsion phase, a hard-shell pre-emulsion phase, an initiation system and a post-treatment auxiliary agent; the core emulsion phase comprises deionized water, 2-ethylhexyl acrylate, glycidyl methacrylate, a toughening aid, ethyl phosphate methacrylate and an OP-10 emulsifier; the toughening aid is a polyether-polyester block copolymer; the post-treatment auxiliary agent comprises an antibacterial flame retardant, an organic silicon defoaming agent and ammonia water, the antibacterial flame retardant is a benzisothiazolinone derivative containing phosphorus and nitrogen, performance complementation is achieved through the layered design of a core-shell structure, and meanwhile the stability and adhesive force are improved by means of the reactive emulsifier and the functional monomer; in addition, the polyether polyester block type reactive toughening aid and the phosphorus and nitrogen-containing benzisothiazolinone derivative antibacterial flame retardant are added, so that synergistic optimization of toughening, antibacterial and flame retardant is realized.

The invention discloses easy-to-disperse diamond grinding fluid and a preparation method thereof, and relates to the technical field of grinding fluid. The easy-to-disperse diamond grinding fluid is prepared from the following raw materials in parts by weight: 1 to 20 parts of modified diamond micro powder, 40 to 80 parts of deionized water, 1 to 10 parts of polyethylene glycol 6000, 0.5 to 1.2 parts of sodium carboxymethyl cellulose, 1 to 20 parts of glycerol, 1 to 10 parts of triethanolamine, 0.3 to 0.7 part of sodium polyacrylate, 0.05 to 5 parts of 1, 2-benzisothiazolin-3-ketone and 1 to 10 parts of a modified silane coupling agent. According to the easy-to-disperse diamond grinding fluid, through the synergistic effect of the modified diamond micro powder and the modified silane coupling agent, the dispersity is excellent, and the stability is high; the formula is scientific, polyethylene glycol and other assistants are matched, precise process parameters and graded filtration are combined, the grinding efficiency is high, the surface smoothness of a workpiece is good, the antibacterial property and storage stability are good, and the application scene is wide.

The present invention relates to a composition containing (a) a guanidine and / or an unsubstituted guanidine salt, and (b) at least one further component selected from the group consisting of 5-chloro-2-methyl-4-isothiazolin-3-one, 2-methyl-4-isothiazolin-3-one, 1, 2-benzisothiazolin-3-one, N-butyl-1, 2-benzisothiazolin-3-one, N-methyl-1, 2-benzisothiazolin-3-one, N-methyl-1, 2-benzisothiazolin-3-one, N-methyl-1, 2-benzisothiazolin-3-one, N-methyl-1, 2-benzisothiazolin-3-one, N-methyl-1, 2-benzisothiazolin-3-one, N-methyl-1, 2-benzisothiazolin-3-one, N-methyl-1, 2-benzisothiazolin-3-one, N-methyl-1, the cleaning agent is prepared from 2-benzisothiazolin-3-one, octyl isothiazolinone, bronopol, dibromo-nitrilopropionamide, dibromo-dicyanobutane, butyl carbamic acid iodopropynyl ester, aminomethyl propanol, aminoethyl propylene glycol, monoethanolamine, ethylhexylglycerin, hexylglycerin, 1, 2-pentanediol, 1, 2-hexanediol, 1, 2-heptanediol, 1, 2-octylene glycol, phenoxy ethanol and phenethyl alcohol. The cleaning agent is prepared from phenyl propanol, benzyl alcohol, isopropanol, ethylenediamine tetraacetic acid, (1-hydroxyethylidene) diphosphonic acid, 2-mercaptopyridine sodium oxide, 2-mercaptopyridine zinc oxide, o-phenylphenol, sorbic acid, benzoic acid, salicylic acid, lactic acid, citric acid and zinc. The invention also relates to an industrial product containing components (a) and (b), and to the use of said composition for the preservation of containers and for the preservation of industrial products. The invention also relates to the use of (a) a guanidine and / or an unsubstituted guanidine salt for improving the antimicrobial efficacy of one or more compounds selected from the group (b) described above.

The present invention provides a wear-resistant and antibacterial composite material for rubber stoppers and a preparation method thereof, which belongs to the technical field of rubber preparation; the preparation process thereof comprises the following steps: preparation of surface-modified carbon-coated silver particles; preparation of a composite antibacterial agent; intercalation modification of zirconium phosphate; preparation of a hydrophobic antibacterial rubber stopper wear-resistant coating; and preparation of a wear-resistant and antibacterial composite material. The N-substituted benzisothiazolinone compound synthesized by the present invention has good antibacterial activity, and the N-substituted benzisothiazolinone compound reacts chemically with active groups such as amino groups of 3-aminopropyltriethoxysilane on the surface-modified carbon-coated silver particles to achieve grafting to prepare a composite antibacterial agent, the composite antibacterial agent is used to prepare a rubber stopper, and the surface of the rubber stopper is sprayed with a hydrophobic antibacterial and wear-resistant coating, and the prepared composite material has good wear-resistant and antibacterial effects.

The invention relates to a process for preparing 1,2′-benzisothiazoline-3-one according to formula (I), comprising the following steps: (a) reacting a 2-halogenbenzonitrile compound of general formula (II) with a reaction mixture, containing: (i) alkaline sulphide and / or alkaline hydrogen sulphide and (ii) an alkyl halide compound, represented by general formula (III): R1X (III) for producing an intermediate product of general formula (IV), and (b) reacting the intermediate product of general formula (V) obtained in step (a) with a halogenating agent or an oxidant and subsequent reaction of the 2-(alkylsulfoxy)benzonitrile with an acid to form 1,2-benzisothiazoline-3-one as well as a halide compound of general formula (V) R1X (V).

The present invention relates to the field of sewage treatment technology, and more particularly to a long-lasting antibacterial deodorant for sewage and a preparation method thereof. The long-lasting antibacterial deodorant for sewage is prepared from raw materials comprising the following components in parts by weight: 0.2-0.3 parts of 1,2-benzisothiazolin-3-one, 0.3-0.5 parts of p-tert-amylphenol, 0.1-0.2 parts of methyl parahydroxybenzoate, 4-6 parts of activated carbon, 4-6 parts of modified sustained-release microspheres, 8-12 parts of a modified polymer, and 2-3 parts of modified lysozyme.

The invention discloses a plant-based water filtering material and a preparation method thereof, and relates to the technical field of filtering materials. When the plant-based water body filtering material is prepared, 4-(10, 15, 20-triphenyl porphyrin-5-yl) aniline sequentially reacts with acrylic acid-2, 3-epoxypropyl ester and zinc acetate to obtain an alkenyl porphyrin zinc complex; the preparation method comprises the following steps: reacting chitosan with an alkenyl porphyrin zinc complex to obtain modified chitosan; reacting the oxidized reed carbon with butyl trimethyl ammonium chloride to obtain modified reed carbon; preparing a spinning solution from polybutylene terephthalate, the modified chitosan and the modified reed carbon, and performing electrostatic spinning to obtain a fiber membrane; itaconic acid and alkenyl benzisothiazolinone are prepared into a finishing solution; and finishing the fiber membrane with the finishing liquid to obtain the plant-based water filtering material. The plant-based water filtering material prepared by the invention can adsorb and catalytically degrade organic dyes in wastewater and adsorb heavy metals, and also has an antibacterial effect.

This invention provides an antibacterial and antifungal TPE material, belonging to the field of thermoplastic elastomer technology. The antibacterial and antifungal TPE material of this invention comprises the following components: SEBS, PP, a plasticizer, modified nano-zinc oxide, N-n-butyl-1,2-benzisothiazolin-3-one, 4,5-dichloro-2-n-octyl-4-isothiazolin-3-one, an antioxidant, and zinc stearate; wherein the modified nano-zinc oxide is obtained by melt blending nano-zinc oxide with maleic anhydride-grafted SEBS, the mass ratio of the modified nano-zinc oxide to the maleic anhydride-grafted SEBS is (0.6-1.7):1, and the particle size of the nano-zinc oxide is 20-50 nm; the free acid content of the zinc stearate is 0.3%-0.5%. The antibacterial and antifungal TPE material of this invention possesses good antibacterial properties, antifungal properties, and tensile strength.

The invention relates to an efficient multifunctional cleaning agent for a medical endoscope and a preparation method of the efficient multifunctional cleaning agent, and belongs to the technical field of medical cleaning. The cleaning agent is prepared from isopropyl alcohol, glycerol, propylene glycol, TritonX-100, fatty alcohol-polyoxyethylene ether, mannitol, 4-FPBA, hydroxytyrosol, sodium formate, benzisothiazolinone, a multienzyme compound and deionized water according to a specific ratio. The preparation method comprises the steps of step-by-step dissolution, temperature-controlled mixing and low-temperature enzyme adding. The cleaning agent can effectively remove stubborn stains such as protein and fat on the surface of an endoscope (the removal rate is larger than or equal to 90%), the bacteriostasis rate on escherichia coli and staphylococcus aureus is larger than or equal to 99%, and corrosion to stainless steel, rubber and plastic materials is avoided. Experiments show that the enzyme activity retention rate of the multienzyme compound still reaches 80% or above after the multienzyme compound is stored for 2 years, and the technical problems that an existing cleaning agent is not thorough in decontamination, poor in antibacterial activity and capable of corroding equipment are solved.

The application relates to the fine chemical technology field and discloses a preparation method of 2-substituted-2,3-dihydro-4 H benzothiazine-4-ketone. The specific steps are as follows: 1,2-benzisothiazolin-3-ketone and carbonyl compound are used as raw materials, hydrogen iodide and ammonium iodide are used as important additives, one-step reaction is carried out in an organic solvent, and the target product can be obtained after purification. The method is simple in operation, high in yield and has potential application value.

The utility model belongs to the technical field of chemical production, and discloses a benzisothiazolinone zinc acrylate resin production device which comprises an intermediate reaction kettle, a distillation device, a drying device, a total reaction kettle and a filtering device which are sequentially communicated through a pipeline, a valve and a pump, each of the intermediate reaction kettle and the total reaction kettle is provided with a temperature control device, a stirring device, a temperature sensor and a nitrogen protection device, and the total reaction kettle is also provided with a pH sensor and a dropwise adding device. The device is reasonable in design, simple in structure, convenient to operate and easy for industrial production.

The invention discloses a preparation method of a water treatment agent and the water treatment agent. The preparation method adopts a one-step method for synthesis, and comprises the following steps: mixing polysuccinimide, benzisothiazolinone and alkali, and then adding a solvent for reaction to obtain the water treatment agent. The water treatment agent prepared by the preparation method disclosed by the invention has the effects of scale inhibition and sterilization at the same time, and the efficiency of the water treatment process is improved.

This invention discloses a low-VOC environmentally friendly interior wall coating composition and its preparation method in the field of architectural coatings technology. The method involves mixing deionized water, diethylenetriamine-terminated hyperbranched polyglycerol-grafted polypropylene glycol diglycidyl ether star copolymer, and polyether-modified polysiloxane. Titanium dioxide, calcined kaolin, heavy calcium carbonate, and talc are then added and ground to obtain a pigment and filler slurry. Next, styrene-acrylic emulsion, acrylic emulsion, and a mixture containing N-(diaminoethyl)-aminopropylmethyldimethoxysilane-modified glycidyl methacrylate-polyetheramine-epoxy soybean oil ring-opening copolymer and methyl isobutyl ketone are added. After stirring, the pH is adjusted to 8.0-9.5 using an associative polyurethane thickener and aminomethylpropanol. Polyether-modified polysiloxane and benzisothiazolinone are then added, followed by degassing to obtain the final product. This coating has extremely low volatile organic compound content and exhibits excellent formaldehyde removal, scrub resistance, and dispersion stability.

The invention discloses a low-VOC (volatile organic compound) environment-friendly building coating and a preparation method thereof in the technical field of coatings, and the method comprises the following steps: firstly stirring and dissolving deionized water, hydroxyethyl cellulose and an ammonium polyacrylate dispersing agent, and then adding rutile titanium dioxide, diatomite and heavy calcium carbonate for dispersing; adding soap-free organic silicon acrylic emulsion, mixing, sequentially adding a VOC adsorbent based on a morpholine modified polymer, a nano photocatalytic composite material with a yolk-shell structure, a mineral oil-based defoaming agent, a benzisothiazolinone preservative and a zinc ion antibacterial agent, and stirring; and finally, adding the associated polyurethane thickener, adjusting the pH value, and filtering. The prepared coating is high in environmental protection property, can effectively adsorb and degrade volatile organic compounds, and has antibacterial and mildew-proof functions.

The invention provides a preparation method of corrosion-resistant, mildew-resistant and oxidation-resistant water-based carbon black color paste, and belongs to the technical field of preparation of water-based carbon black color paste. Comprising the following steps: S1, carbon black surface functionalization modification: weighing carbon black with the particle size of 2000-2500 meshes, dissolving the carbon black in deionized water, and carrying out ultrasonic treatment for 40-60 minutes to obtain a carbon black suspension; dropwise adding concentrated nitric acid with the mass fraction of 50%-68% into the carbon black suspension, and filtering to obtain modified carbon black; s2, preparation of a compound preservative: mixing 1, 2-benzisothiazolin-3-ketone and benzimidazole according to a mass ratio, so as to obtain the compound preservative; s3, color paste compounding preparation: taking the modified carbon black, a dispersing agent, a defoaming agent, a wetting agent, a lubricating agent, analytically pure DMF and deionized water in parts by weight, uniformly mixing, and then adding zirconium beads. The water-based carbon black color paste with good corrosion resistance, mildew resistance and oxidation resistance, high stability and good environmental protection property is prepared by carrying out surface modification on the carbon black and reasonably selecting and compounding various auxiliaries.

The present invention relates to the technical field of organic synthesis, and in particular to a method for rapidly preparing N-methylbenzisothiazolinone-1-oxide. At present, using p-benzisothiazolinone as a reaction raw material, benzisothiazolinone-1-oxide is synthesized by a non-direct oxidation method, and product yield is difficult to reach more than 80%. In view of the above problems, the present invention provides a method for rapidly preparing N-methylbenzisothiazolinone-1-oxide: at room temperature, 2-mercapto-N-methylbenzamide and N-chlorosuccinimide (NCS) are vigorously stirred in an organic solvent. After the reaction is completed, N-methylbenzisothiazolinone-1-oxide is obtained by concentration, extraction, and vacuum distillation. The inventive method has mild reaction conditions, short reaction time, high yield, and good application prospect.

The application discloses an embedded N-substituted benzisothiazolinone and N-substituted ciprofloxacin antibacterial polyurethane acrylate film material, and belongs to the field of organic antibacterial coating.The application introduces double bonds into benzisothiazolinone structural units and ciprofloxacin structural units by respectively functionalizing benzisothiazolinone and ciprofloxacin N-substituted alkenyl groups, grafts N-substituted alkenyl functionalized benzisothiazolinone derivatives (NBT) and ciprofloxacin derivatives (NCP) into a polyurethane acrylate main chain at the same time, and utilizes excellent antibacterial properties of NBT on staphylococcus aureus and excellent antibacterial properties of NCP on escherichia coli to prepare a broad-spectrum antibacterial material, and a corresponding antibacterial coating can be used for modifying a substrate surface.

The invention discloses synthesis of a benzisothiazolinone compound with indoleamine 2, 3-dioxygenase IDO1 (indoleamine 2, 3-dioxygenase) inhibitory activity and application of the benzisothiazolinone compound in preparation of antitumor drugs. The structural general formula of the inhibitor is as shown in formula (1). Pharmacological experiments show that the compound provided by the invention not only has low cytotoxicity, but also shows good IDO1 inhibitory activity, and has relatively good inhibitory activity on lung cancer paclitaxel drug-resistant cell strains. In addition, an AhR activation experiment shows that the compound disclosed by the invention is not strong in AhR activation activity. In-vivo experiments show that the compound has no obvious acute toxicity, is safe to take orally and can be applied to preparation of antitumor drugs for inhibiting IDO1-mediated tryptophan metabolic pathways.

The invention discloses an anti-scratch car bumper front film and a preparation method thereof, and relates to the technical field of high polymer material synthesis and processing. The scratch-resistant automobile bumper front film is prepared by coating a polyethylene glycol terephthalate base film with a coating liquid, the coating liquid is prepared from the following raw materials in parts by weight: 40 to 60 parts of modified polyethylene glycol terephthalate resin, 10 to 15 parts of modified nano silicon dioxide, 8 to 12 parts of polymethyl methacrylate, 5 to 8 parts of hydroxyl-terminated polybutadiene, 3 to 6 parts of trimethylolpropane triacrylate, 1 to 2 parts of ultraviolet light initiator 1173, 2 to 4 parts of nano titanium dioxide and 1 to 3 parts of silane coupling agent KH-550. The invention relates to a high-temperature-resistant coating which is prepared from the following components in parts by weight: 0.5-1.2 parts of polyether modified polydimethylsiloxane, 0.3-0.8 part of an organic silicon defoaming agent, 0.2-0.5 part of N-butyl-1, 2-benzisothiazolin-3-ketone and 25-35 parts of an ethyl acetate-toluene mixed solvent. The raw materials of the scratch-resistant automobile bumper front film are reasonably modified, and the scratch resistance is improved through the cooperation of the modified PET and the nano silicon dioxide; the technology comprises ultrasonic dispersion for agglomeration prevention, ultraviolet curing is efficient, antioxidant and defoaming components are added, the film body is stable, and the requirements of the automobile bumper front film are met.

The invention relates to the technical field of adhesives, in particular to a high-electrical-strength mildew-proof three-proofing adhesive and a preparation method thereof, and the high-electrical-strength mildew-proof three-proofing adhesive comprises the following components: acrylic resin, silicone oil, a plasticizer, ethanol, isopropanol, an insulating filler, an interface modifier, a mildew-proof agent, a free radical initiator and deionized water. Wherein the insulating filler is composed of hexagonal boron nitride nanosheets and flaky aluminum oxide, the interface modifier is composed of vinyl trimethoxy silane and gamma-(2, 3-epoxypropoxy) propyl trimethoxy silane, and the mildew preventive is composed of 1, 2-benzisothiazolin-3-one and gamma-aminopropyl triethoxy silane. The electrical strength of the three-proofing adhesive is improved through the insulating filler, and the mildew resistance is improved through the mildew preventive; according to the three-proofing adhesive disclosed by the invention, the anti-mildew agent is added, the interface modifier is introduced, and the insulating filler and the anti-mildew agent are integrated into a three-dimensional network of a resin matrix through chemical bonding, so that the three-proofing adhesive not only shows relatively high electrical strength, but also realizes long-acting and stable existence of the anti-mildew component, and obtains lasting and reliable comprehensive protection performance.

The present application relates to a water-based binder composition for secondary batteries, a slurry composition for secondary battery electrodes, a secondary battery electrode, and a secondary battery. A water-based binder composition for secondary batteries, comprising polymer particles and 0.001 to 1.0 parts by weight of 1,2-benzisothiazolin-3-one per 100 parts by weight of the polymer particles, the polymer particles comprising monofunctional (meth)acrylate monomer units, ethylenically unsaturated carboxylic acid monomer units, and other monomer units copolymerizable with the monofunctional (meth)acrylate monomer units and the ethylenically unsaturated carboxylic acid monomer units (excluding aliphatic conjugated diene monomer units, amide group-containing monomer units, α,β-unsaturated nitrile monomer units, and monomer units having repeating units from fluorine-containing vinyl monomers), the content of the ethylenically unsaturated carboxylic acid monomer units being 10.5 parts by weight or more per 100 parts by weight of the polymer particles.

The invention relates to the technical field of anti-rust coatings, in particular to a high-weather-resistance water-based environment-friendly anti-rust coating and a preparation method and application thereof. The water-based environment-friendly antirust coating with high weather resistance is prepared from the following raw materials in parts by weight: 35 to 40 parts of water-based silicone acrylic emulsion, 15 to 20 parts of modified epoxy resin emulsion, 20 to 23 parts of nano filler, 3 to 5 parts of dodecyl benzene sulfonate, 1 to 2 parts of dispersing agent, 0.5 to 1 part of defoaming agent, 0.5 to 1 part of ammonia water, 1 to 3 parts of 2-hydroxy-4-methoxybenzophenone, 0.2 to 0.5 part of benzisothiazolin-3-ketone and 40 to 50 parts of deionized water. Nano titanium dioxide in the environment-friendly high-performance coating is cooperated with the ultraviolet light absorber, shielding and absorption of high-energy ultraviolet light are enhanced, aging fracture of a polymer chain is slowed down, and the coating has excellent adhesive force and flexibility, can adapt to thermal expansion and cold contraction changes in a complex environment without cracking or peeling off, and can be used as a high-performance coating. The lasting, stable and reliable anti-rust effect is realized.

This invention provides a cerium oxide-based polishing slurry for STI structures. The slurry comprises, by total mass, 0.05 wt%–5 wt% nano-cerium dioxide abrasive, 0.02 wt%–0.2 wt% hydroquinone, 0.05 wt%–0.25 wt% pyridinecarboxylic acid, 0.01 wt%–0.5 wt% D-sorbitol, and 0.001 wt%–0.01 wt% 1,2-benzisothiazolin-3-one, with a pH of 3–5. The cerium oxide-based polishing slurry provided by this invention, by adding a reducing agent to gently fine-tune the CeO2 surface activity to increase the Ce3+ content, promotes the removal rate of TEOS. Through the synergistic effect of other inhibitors and passivators, a high TEOS:Si3N4 selectivity ratio is obtained. Inhibiting the removal rate of Si3N4 indirectly avoids excessive grinding of oxides in the trenches, resulting in better wafer surface planarization efficiency.

The application discloses a modified mildew-proof agent, a mildew-proof sealant and a preparation method of the mildew-proof sealant. The modified mildew-proof agent is obtained by the reaction of an alkali metal salt of 1,2-benzisothiazolin-3-one and chlorotrimethoxysilane. The mildew-proof sealant comprises an A component and a B component. The A component is prepared from raw materials comprising silane modified polyether, reinforcing filler, fumed silica, thixotropic agent, the modified mildew-proof agent, light stabilizer and plasticizer. The B component is prepared from raw materials comprising reinforcing filler, plasticizer, coupling agent and catalyst. The modified mildew-proof agent greatly improves the compatibility with the silane modified polyether resin, and when added into the silane modified polyether resin, the mechanical strength and other comprehensive properties of the obtained mildew-proof sealant are not affected, the mildew-proof effect is greatly improved, the obtained mildew-proof sealant has excellent mechanical properties, good elasticity, good mildew-proof performance and good yellowing resistance.

This utility model belongs to the field of chemical production technology and discloses a production apparatus for benzisothiazolinone derivatives, comprising a mixing vessel, a microwave reactor, a cooler, a neutralization vessel, an extraction vessel, a washing vessel, a drying vessel, a concentrator, and a column chromatography device, which are connected in sequence by pipelines, valves, and pumps. This utility model has a reasonable design, simple structure, convenient operation, high yield, and is easy to industrialize.

The present invention relates to the technical field of paint additives and, in particular, to a bacteriostatic agent for use in paints. The bacteriostatic agent for use in paints contains, by weight: 1 to 3 parts 2-(4-thiazolyl)benzimidazole, 1 to 2 parts 1,2-benzisothiazolin-3-one, 1 to 2 parts chitosan, 0.5 to 1 part sodium alginate, 0.1 to 0.4 parts nano-calcium carbonate, 0.1 to 0.4 parts ferrous sulfate, 0.1 to 0.4 parts SiO2, 1 to 2 parts emulsifier, and 50 parts water. The bacteriostatic agent provided in the present invention can effectively inhibit various molds, has good application performance, and is easy to smooth.

The invention belongs to the technical field of joint mixtures, and particularly relates to an epoxy color sand joint mixture as well as a preparation method and application thereof. The epoxy color sand joint mixture comprises a component A and a component B, the component A comprises water-borne epoxy resin, a reactive diluent and a mildew-proof additive; the component B comprises an alicyclic amine curing agent and a polyamide-based curing agent; the mildew-proof auxiliary agent is prepared from N-butyl-1, 2-benzisothiazolin-3-ketone, 1-(4-chlorphenyl)-4, 4-dimethyl-3-(1, 2, 4-triazole-1-yl methyl) pent-3-alcohol and polypropylene glycol, and the mildew-proof auxiliary agent is prepared from N-butyl-1, 2-benzisothiazolin-3-ketone, 1-(4-chlorphenyl)-4, 4-dimethyl-3-(1, 2, 4-triazole-1-yl methyl) pent-3-alcohol and polypropylene glycol. Specific types of substances are compounded to serve as the mildew-proof auxiliary agent, and other components are combined to act together, so that the epoxy colored sand joint mixture has good mildew resistance.

The present invention provides a composition for preparing a scale inhibitor, a scale inhibitor, a preparation method thereof, and an application thereof, belonging to the field of water treatment technology. The composition comprises maleic anhydride, acrylic acid, a sulfonic acid anion monomer, a first functional monomer, a second functional monomer, an initiator, and water; raw materials for preparing the first functional monomer include 5-aminoorotic acid, a first solvent, pyridine, and maleic anhydride; and raw materials for preparing the second functional monomer include 1,2-benzisothiazolin-3-one, ethyl chloroacetate, a second solvent, and hydrazine hydrate. The scale inhibitor provided by the present invention has high scale inhibition efficiency, good corrosion inhibition effect, and excellent antibacterial properties.