786 results about "Isophthalic acid" patented technology

The invention relates to the technical field of polyester fibers, in particular to a high-strength wear-resistant polyester fiber and a preparation method thereof. The invention aims to solve the problem that the mechanical strength and wear resistance of the existing polyester fiber are difficult to consider at the same time. The preparation method comprises the following steps: carrying out esterification and polycondensation on terephthalic acid, ethylene glycol, hydroxyl-terminated polydimethylsiloxane and isophthalic acid to obtain modified PET; the preparation method comprises the following steps: respectively carrying out oxidation treatment on graphene and a multi-walled carbon nanotube, and then adding polyether amine for grafting; carrying out melt blending with PET slices to obtain nano master batches; carrying out melt blending on the chopped glass fibers and the PET slices to prepare micron master batches; and mixing the modified PET, the nano master batch and the micron master batch, carrying out ultrasonic dispersion, adding an auxiliary agent, and carrying out melt spinning, three-section stretching and three-section heat setting treatment to obtain the high-strength wear-resistant polyester fiber. Through the synergistic effect of the components and the process, the prepared fiber has excellent mechanical properties and wear resistance, and has wide application prospects in the fields of clothing, home textiles, industry and the like.

The invention relates to the technical field of high-performance polyester, in particular to a high-strength low-shrinkage polyester fiber and a preparation method thereof. The defects that existing polyester fibers are poor in strength and shrinkage resistance are overcome. The preparation method comprises the following steps: mixing the modified resin, the modified nano silicon dioxide, the composite antioxidant, the composite nucleating agent and the composite lubricant, and carrying out melt spinning. Wherein the modified resin is prepared from the following raw materials: dimethyl terephthalate, isophthalic acid, ethylene glycol and isosorbide; the modified nano silicon dioxide comprises nano silicon dioxide, KH570 and silver nitrate; the composite antioxidant comprises an antioxidant 1010, an antioxidant 168 and an antioxidant 1222; the composite nucleating agent comprises sodium benzoate and nano montmorillonite; the composite lubricant is prepared from ethylene bis stearamide and pentaerythritol stearate. The prepared polyester fiber is high in strength, high in shrinkage resistance and suitable for manufacturing of outdoor equipment.

The invention discloses thermosetting unsaturated polyester resin as well as a preparation method and application thereof, and belongs to the technical field of unsaturated polyester resin. The raw materials comprise the following components in parts by weight: 270 to 380 parts of neopentyl glycol, 90 to 150 parts of ethylene glycol, 400 to 570 parts of isophthalic acid, 0.4 to 1.0 part of an antioxidant, 0.3 to 0.8 part of a catalyst, 80 to 170 parts of propylene glycol, 260 to 380 parts of maleic anhydride, 0.03 to 0.09 part of a first polymerization inhibitor, 0.1 to 0.3 part of a second polymerization inhibitor, 0.1 to 0.4 part of a third polymerization inhibitor and 800 to 900 parts of styrene. The thermosetting unsaturated polyester resin disclosed by the invention has relatively high mechanical properties and corrosion resistance after being cured, still can keep relatively high mechanical properties after being corroded by acid and alkali, is high in bending deformation resistance, and can be applied to thermosetting trenchless repair of buildings or pipelines.

The invention relates to the technical field of heat-conducting graphite materials, in particular to a POD precursor film, a POD-based graphite film and a preparation method of the POD precursor film, the POD-based graphite film and the preparation method of the POD precursor film. After the reaction is finished, obtaining an antioxidant modified aromatic polyoxadiazole polymer solution; the preparation method comprises the following steps: coating an antioxidant modified aromatic polyoxadiazole polymer solution with a wiped film, then carrying out solidification forming in a multi-stage coagulation bath, and finally neutralizing, washing and drying to obtain a POD precursor film; the coagulating bath is an aqueous solution of sulfuric acid and boron compounds and an aqueous solution of sulfuric acid. And carrying out carbonization treatment and graphitization treatment on the POD precursor film to obtain the POD-based graphite film. According to the preparation method, the boron element is cooperatively introduced into and out of the POD precursor film, so that the oxidation resistance of the graphite film is remarkably improved while the high thermal conductivity is maintained.

The invention relates to a high-temperature proton exchange membrane, in particular to a high-temperature proton exchange membrane based on silica cross-linked polybenzimidazole and a preparation method of the high-temperature proton exchange membrane. The preparation method comprises the following steps: polymerizing 3, 3 '-diaminobenzidine, 4, 4'-diphenyl ether dicarboxylic acid and 5-hydroxyisophthalic acid to form a polybenzimidazole main chain containing an ether bond and a phenolic hydroxyl group, grafting a silane coupling agent on the polybenzimidazole main chain, and finally carrying out membrane formation and acid catalysis treatment to obtain the high-temperature proton exchange membrane based on silica crosslinked polybenzimidazole. A silicon-oxygen network structure is introduced into a polybenzimidazole main chain, so that the phosphoric acid retention rate and the oxidation resistance of the polymer film can be effectively improved, and the service life of the polymer film is prolonged.

Disclosed is a printing ink for heat-sensitive recording media, which is (A) or (B) below: (A) a heat-sensitive color-developing printing ink containing a leuco dye, a color developer, a vinylpyrrolidone-vinyl acetate copolymer, and a solvent, wherein the color developer is at least one selected from the group consisting of an N,N'-diaryl urea-based compound represented by general formula (1) (in the formula, R0 represents a C1-12 alkyl group, a C7-12 aralkyl group, or a C6-12 aryl group. The aralkyl group and the aryl group may be substituted with a C1-12 alkyl group, a C1-12 alkoxy group, a C6-12 aryl group, or a halogen atom. A plurality of R0s may be the same or different. A1 represents a hydrogen atom or a C1-4 alkyl group. A plurality of A1s may be the same or different.), a compound represented by general formula (2) (in the formula, R1 to R5 are the same or different, and represent a hydrogen atom, a halogen atom, a nitro group, an amino group, an alkyl group, an alkoxy group, an aryloxy group, an alkylcarbonyloxy group, an arylcarbonyloxy group, an alkylcarbonylamino group, an arylcarbonylamino group, an alkylsulfonylamino group, an arylsulfonylamino group, a monoalkylamino group, a dialkylamino group, or an arylamino group.), and 5-(N-3-methylphenyl-sulfonamide)-N',N''-bis-(3-methylphenyl)-isophthalic acid diamide; and (B) a protective layer printing ink for heat-sensitive recording media, the protective layer printing ink containing an adhesive, a slipperiness imparting agent, and a solvent, wherein the adhesive is a polyvinyl acetal resin, and the slipperiness imparting agent is an alkyl phosphate ester and / or a salt thereof.

The invention belongs to the technical field of transparent self-repairing conductive elastomer materials, and discloses a high-performance transparent self-repairing conductive elastomer and a preparation method thereof. The method comprises the following steps: 1) reacting polyester diol with diisocyanate under the action of a catalyst to obtain an isocyanato-terminated polyurethane prepolymer; 2) mixing benzene ring-containing dihydrazide with the polyurethane prepolymer, carrying out chain extension reaction, adding bis (trifluoromethanesulfonyl) lithium imide, and carrying out curing molding to obtain a polyurethane-urea conductive elastomer; the dihydrazide is one or more of isophthalic acid dihydrazide or terephthalic acid dihydrazide. The method disclosed by the invention is simple, and the obtained elastomer material has high transparency, high mechanical property and better self-repairing performance; meanwhile, the material has good conductivity and excellent stretching resilience, can be used as an excellent stretchable conductor material, and has huge application potential in the aspects of monitoring human body dynamic activities, monitoring mechanical movement, monitoring a man-machine interaction process and the like.

The invention discloses high-temperature-resistant and corrosion-resistant unsaturated polyester resin for a grid and a preparation method thereof, and belongs to the technical field of unsaturated polyester resin. The raw materials comprise the following components in parts by weight: 330 to 400 parts of isophthalic acid, 55 to 80 parts of 1, 4-cyclohexanedimethanol, 150 to 200 parts of ethylene glycol, 125 to 220 parts of first reaction stage propylene glycol, 0.2 to 0.6 part of a catalyst, 0.1 to 0.3 part of a first reaction stage antioxidant, 90 to 120 parts of second reaction stage propylene glycol, 30 to 50 parts of phthalic anhydride, 300 to 380 parts of maleic anhydride, 0.1 to 0.3 part of a second reaction stage antioxidant, 0.1 to 0.5 part of a polymerization inhibitor and 600 to 630 parts of a cross-linking agent. The high-temperature-resistant and corrosion-resistant unsaturated polyester resin for the grating has the characteristics of high corrosion resistance, high temperature resistance and high mechanical property, is low in cost and is suitable for being used as a raw material for manufacturing the grating.

A toner includes toner particles each containing a binder resin. The binder resin contains 50% or more by mass of a polyester A containing 60 mol % or more of a unit derived from isophthalic acid as an acid component. The toner includes agglomerates on surfaces of the toner particles, each of the agglomerates containing silica and a resin. The toner has a CI (% by number) of 1% or more by number and 15% or less by number, CI being the percentage by number of the toner particles including the agglomerates. The percentage by number of the toner particles including the agglomerates satisfies predetermined requirements.

The invention belongs to the technical field of plastic processing, and particularly relates to a hydrophobic solvent-resistant biodegradable polyester material as well as a preparation method and application thereof in plastic bottles. The preparation method of the hydrophobic solvent-resistant biodegradable polyester material comprises the following steps: reacting polyol glycidyl ether with acrylic acid to prepare polyol glycidyl ether acrylate; the preparation method comprises the following steps: reacting isophthalic dihydrazide with polyol glycidyl ether acrylate to prepare a modifier; pBAT reacts with a modifier and an acrylic acid fluorine monomer to obtain the hydrophobic solvent-resistant biodegradable polyester material. The hydrophobic solvent-resistant biodegradable polyester material adopts PBAT as matrix resin, has biodegradability, has good hydrophobicity and solvent resistance through modification treatment of the modifier and the acrylic acid fluorine monomer, and can be applied to manufacturing of plastic bottles.

The invention discloses unsaturated polyester resin for an optical cable reinforcing core and a preparation method thereof, and belongs to the technical field of unsaturated polyester resin. The composition is composed of the following components: PG, IPA, a catalyst, maleic anhydride, AA, styrene, an antioxidant, a first polymerization inhibitor, a second polymerization inhibitor and a third polymerization inhibitor. The ratio of alcohol to acid is (1.08-1.12): 1; the activity is (3.4-3.8): 1; the molar ratio of AA to IPA is 1: (12-16); the preparation method comprises the following steps: 1) uniformly mixing propylene glycol, a catalyst and isophthalic acid; 2) raising the temperature, preserving the heat and raising the temperature again; cooling, sequentially adding a first polymerization inhibitor, maleic anhydride and adipic acid, heating, keeping the temperature, and heating again; 3) cooling and adding a second polymerization inhibitor, and 4) cooling and adding styrene, a third polymerization inhibitor and an antioxidant, uniformly mixing, and cooling to less than or equal to 60 DEG C to obtain the unsaturated polyester resin for the optical cable reinforcing core. The unsaturated polyester resin for the optical cable reinforcing core has the characteristics of high bending strength and high temperature resistance.

The invention provides a flexible 3D printing material with a double-layer structure and a preparation method thereof.The flexible 3D printing material comprises a TPU coating layer and an inner-layer TPU composite material, the TPU coating layer is prepared from hard TPU, and the inner-layer TPU composite material is prepared from flexible TPU and a coupling agent used for improving the interface bonding strength between the flexible TPU and the coupling agent; the inner-layer TPU composite material further comprises a plasticizer, the plasticizer is used for improving the overall elongation at break of the material and reducing the hardness of the material, and the plasticizer is one or more of phthalate, terephthalate, succinate or isophthalate. According to the scheme, the outer layer material which is moderate in hardness, good in tensile strength and low in elongation at break is used for coating the inner layer flexible material which is high in elongation at break, so that the 3D printing material can be smoothly replaced in AMS, a flexible product can be smoothly printed by using FDM, and additional treatment is not needed.

The invention relates to a preparation method and application of a polyamide surface functionalized polyvinyl alcohol fiber, and belongs to the technical field of biodegradable fibers. According to the method, polyamide is grafted to polyvinyl alcohol fibers through a two-step method. The preparation method comprises the following steps: grafting carboxyl onto the surface of the polyvinyl alcohol fiber through succinic anhydride grafting modification, and further grafting 5-aminoisophthalic acid onto the surface of the polyvinyl alcohol fiber through amidation reaction. The polyamide surface-functionalized polyvinyl alcohol fiber prepared by the method has excellent performance, and the maximum pull-out load and the corresponding pull-out strength of the polyamide surface-functionalized polyvinyl alcohol fiber in a biodegradable plastic film are obviously superior to those of unmodified polyvinyl alcohol fiber or polyvinyl alcohol fiber subjected to surface modification by using succinic anhydride alone; particularly, the maximum pull-out load and the corresponding pull-out strength of the modified fiber in the biodegradable plastic film after the modified fiber reacts at 40 DEG C for 1.5 h reach the maximum value, and the whole biodegradable plastic after fiber reinforcement still keeps the biodegradable performance. As a method for regulating and controlling the interface bonding force between the polyvinyl alcohol fiber and a biodegradable plastic matrix, the method is expected to be applied to preparation of biodegradable efficient reinforced fiber, and the application prospect of the polyvinyl alcohol fiber is improved.

This invention discloses a one-piece molded all-plastic flexible hose sheet and its composite hose, belonging to the field of polymer material technology. The one-piece molded all-plastic flexible hose sheet of this invention has a three-layer structure: an outer PE film, an intermediate layer, and an inner PE film. The intermediate layer is selected from one of the following: an intermediate polymer layer, a three-layer composite layer formed by an intermediate polymer layer, a polyethylene layer, and an intermediate polymer layer, or a three-layer composite layer formed by an intermediate polymer layer, an ethylene-vinyl alcohol copolymer layer, and an intermediate polymer layer; the intermediate layer may have a double-sided coated or uncoated adhesive layer; the intermediate polymer layer is polymerized from 2,6-dihydroxyisophthalic acid, diaminoalkane, and 4,4'-tetraphenylsilane. The all-plastic flexible hose sheet provided by this invention is formed in one piece using a five-layer co-extrusion machine, possessing excellent gas barrier properties, water vapor barrier properties, high mechanical strength, and good interlayer peel strength.

To provide a printing ink with thermochromic properties.SOLUTION: The present invention provides a thermochromic printing ink containing a leuco dye, a color developer, a vinylpyrrolidone-vinyl acetate copolymer, and a solvent, where the color developer is at least one selected from the group consisting of a specific N,N'-diaryl urea-based compound, a compound represented by general formula (2), and 5-(N-3-methylphenyl-sulfonamide)-N',N''-bis-(3-methylphenyl)-isophthalic acid diamide.SELECTED DRAWING: None

The invention discloses an epoxy powder coating and a preparation method thereof, and belongs to the technical field of powder coating production, firstly, the epoxy powder coating is prepared from the following raw materials in parts by mass: 100 parts of epoxy resin, 15-20 parts of modified phenolic resin, 12-15 parts of carboxyl-terminated polyester resin, 4-8 parts of nano cerium oxide coated mica, 1.5-2.0 parts of a flatting agent and 0.5-1.0 part of benzoin; the modified phenolic resin is prepared by carrying out addition on bisphenol A phenolic resin and DOPO, neutralizing and carrying out reduced pressure distillation; the carboxyl-terminated polyester resin is prepared by carrying out esterification polycondensation on terephthalic acid, isophthalic acid, neopentyl glycol and trimethylolpropane, and then modifying by trimellitic anhydride; the nano cerium oxide coated mica is prepared by coating white mica powder with cerium oxide precipitate, and then carrying out surface treatment and crushing.

The invention relates to a preparation device of isophthalic acid-5-sodium sulfonate, and belongs to the technical field of preparation of isophthalic acid-5-sodium sulfonate. Comprising a reaction kettle body, a top cover is arranged at the top of the reaction kettle body, a jacket is arranged in the reaction kettle body, a discharging pipe and a heat-carrying medium inlet pipe are arranged at the bottom of the reaction kettle body, and the discharging pipe is communicated with the interior of the reaction kettle body; the invention also discloses a preparation method. Through rotation of the stirring shaft, the mixing and stirring effects can be achieved, the annular discharging base can be driven to rotate, multiple manual operations are not needed in the whole process, and the effects of automatic material distribution and batch discharging can be achieved only by putting all the needed isophthalic acid into the reaction kettle body at a time; the device is simple to operate, improves the working efficiency, is safe in operation process, is not liable to cause harm to a human body, can meet the requirement of automatic feeding, and can enable the whole production process to be more precise.

The invention relates to the technical field of powdered ink, and discloses a plant-based environment-friendly powdered ink composition which comprises the following components: resin, a coloring agent, a charge control agent, wax / a release agent and an additive. The resin comprises polyester resin and bio-based resin. The polyester resin comprises polyhydric alcohol and polybasic acid. The polyol comprises ethylene glycol, neopentyl glycol and a bisphenol A derivative. The polybasic acid comprises terephthalic acid, isophthalic acid and oxalic acid. Compared with the prior art, the plant-based environment-friendly powdered ink composition provided by the invention has the advantages that the plant-based environment-friendly powdered ink composition is based on a plant-oil-based biodegradable material and is prepared from plant oil, polyhydric alcohols and polybasic acid compounds, so that the excellent biodegradability and moisture resistance of the plant oil are kept; and when the resin is used for preparing the biological powdered ink, the biodegradability and moisture resistance of the powdered ink can be effectively improved, and the biological powdered ink prepared from the resin has excellent biodegradability, moisture resistance, performance retentivity and fixing strength.

The invention relates to rosin modified resin and a preparation process thereof and low-odor printing ink, the rosin modified resin is prepared from maleic anhydride, sulfonate alkyd resin, rosin and a metal organic framework, and the sulfonate alkyd resin is prepared from neopentyl glycol, dibutyltin dilaurate, m-phthalic acid-5-sodium sulfonate, phthalic anhydride and pentaerythritol. The printing ink has the effect of improving the strength and smell of the printing ink.

The invention discloses Pseudomonas putida, a bacterial agent thereof and an application of the Pseudomonas putida in chemical wastewater treatment, the Pseudomonas putida is named as PH-20 and preserved in the China General Microbiological Culture Collection Center on March 17, 2025, and the preservation number of the strain is CGMCC No. 33831. The invention further discloses a preparation method of the Pseudomonas putida. The pseudomonas putida disclosed by the invention can be used for rapidly degrading polybenzoic acid such as terephthalic acid, phthalic acid, isophthalic acid, trimellitic acid, trimellitic acid and pyromellitic acid in wastewater under the conditions of high salt and low temperature, and the degradation effect is still excellent under the condition that various pollutants coexist.

The invention discloses a simple preparation method of a barium-based metal organic framework (Ba-H2Sip) and proton conduction application of the barium-based metal organic framework (Ba-H2Sip), belongs to the field of functional material synthesis and energy application, and is characterized in that functional differentiation design of a 5-sulfoisophthalic acid ligand: a sulfonic group forms a two-dimensional layered structure by chelating Ba < 2 + >; the carboxyl groups are differentiated into'anchoring carboxyl groups' for constructing a three-dimensional supramolecular skeleton and'proton supply carboxyl groups' for providing a proton source, and the design is reported for the first time in Ba-based MOFs; according to the present invention, the large-scale preparation can be achieved by stirring the low-cost raw material in 1 mol / L hydrochloric acid at the room temperature, the yield exceeds 70%, the product can resist 8 M acid and pH = 13 alkali liquid, the conductivity at 90 DEG C / 90% humidity can achieve 1.39 * 10 <-2 > Scm <-1 >, the high-temperature process is not required, the raw material is low in cost and easy to obtain, and the feasible scheme is provided for the high-efficiency proton conductor industrialization.

A desulfurizing agent according to the present disclosure is a desulfurizing agent for removing a sulfur compound from a fluid containing moisture and the sulfur compound, the desulfurizing agent comprising: at least one metal ion selected from the group consisting of aluminum ions, iron ions, and copper ions; and an organic ligand coordinated to a metal ion, the organic ligand containing isophthalic acid optionally having a substituent group at the 5-position of a benzene ring, and diffraction peaks respectively present in the range of diffraction angles of 10.9 DEG + / -0.3 DEG and the range of diffraction angles of 18.1 DEG + / -0.3 DEG in an X-ray diffraction pattern of the desulfurizing agent measured using Cu-K alpha rays.

Provided are a hierarchical porous defect UiO-66 material and a preparation method thereof. The method includes the following steps: mixing a zirconium ion source, a mixed ligand, an organic acid, an organic good solvent, and water to obtain a mixture; and subjecting the mixture to reaction while heating, washing, freeze-drying, and heat treatment in sequence to obtain the hierarchical porous defect UiO-66 material; where hierarchical pores of the hierarchical porous defect UiO-66 material comprise micropores and mesopores; the micropores each have a pore size of not greater than 2 nm; the mesopores each have a pore size of 2 nm to 4 nm; the mixed ligand includes terephthalic acid and a trisubstituted benzene series; and the trisubstituted benzene series is one or two selected from the group consisting of 2-aminoterephthalic acid and 2-aminoisophthalic acid.

The invention relates to an amorphous low-temperature-resistant polyester composition and a preparation method thereof. The amorphous low-temperature-resistant composition consists of the following raw materials: a rigid structural unit of copolyester consisting of purified terephthalic acid and phenyl glycol; purified terephthalic acid, isophthalic acid and 1, 4-butanediol form an amorphous flexible structure unit; different linear molecular chains are reasonably connected through a branching agent, the acting force between the molecular chains is increased, the defect that the acting force between linear high molecular molecules is low is overcome, and finally the amorphous low-temperature-resistant polyester composition with soft / hard blocks and a branched structure is formed.

The invention discloses a single-component moisture-curing reaction type polyurethane hot melt adhesive for aluminum honeycombs and a preparation method thereof, the hot melt adhesive is prepared from the following raw materials in parts by weight: 15-30 parts of isocyanate, 10-25 parts of poly (1, 6-hexanediol adipate), 5-15 parts of poly (1, 6-hexanediol dodecanoate), 5-15 parts of poly (1, 6-hexanediol isophthalate), 5-15 parts of poly (1, 6-hexanediol isophthalate), 5-15 parts of poly (1, 6-hexanediol adipate), 5-15 parts of poly (1, 6-hexanediol adipate), 5-15 parts of poly (1, 6 The invention relates to a high-temperature-resistant adhesive which is prepared from the following components in parts by weight: 2 to 10 parts of 1, 6-hexanediol-neopentyl glycol ester glycol, 5 to 15 parts of polycarbonate polyether glycol, 10 to 20 parts of polytetramethylene ether glycol, 5 to 15 parts of ethylene-vinyl acetate, 15 to 25 parts of polydodecanedioic acid-hydrogenated phthalic anhydride-methylpropanediol ester glycol, 0.01 to 0.1 part of stabilizer, 0.05 to 0.5 part of antioxidant, 0.05 to 0.5 part of catalyst and 0.1 to 5 parts of adhesion promoter. The hot melt adhesive disclosed by the invention has the characteristics of high bonding strength and excellent weather resistance, and can meet the use requirements of the current furniture market.

The invention relates to the technical field of layered materials, in particular to an antibacterial layered composite elastic fabric and a preparation method thereof. The defects that an existing layered fabric is poor in antibacterial property and elasticity are overcome. The preparation method comprises the following steps: preparing modified spandex fiber yarns by taking polytetrahydrofuran ether glycol, diphenylmethane diisocyanate and modified microcrystalline cellulose as raw materials; preparing modified polyester fiber yarns by taking terephthalic acid, ethylene glycol, 1, 4-butanediol, isophthalic acid and nano silicon dioxide as raw materials; plying the modified polyester fiber yarns and the modified spandex fiber yarns, and weaving to obtain an outer-layer fabric; performing pretreatment, dipping and heat treatment on the outer layer fabric to obtain an outer layer finished fabric; performing dipping and heat treatment on the inner-layer fabric to obtain an inner-layer finished fabric; the antibacterial layered composite elastic fabric obtained by laminating and compounding the outer-layer finishing fabric and the inner-layer finishing fabric has strong antibacterial property and strong elasticity, and is suitable for manufacturing outdoor textiles.

Provided is a toner that includes a toner particle containing a binder resin; and an external additive, wherein the binder resin contains a polyester resin A; when a content of the polyester resin A in the binder resin is taken as Wp (mass %), Wp is 50 mass % or more; when a content ratio of the monomer unit Uiso corresponding to isophthalic acid to all monomer units corresponding to polycarboxylic acids in the polyester resin A is taken as MIPA (mol %), MIPA is 40 mol % or more; the external additive contains inorganic fine powder; and the inorganic fine powder contains a silica fine particle having aluminum hydroxide on the surface thereof.

The invention provides a Zn-MOF material, a preparation method thereof and application of the Zn-MOF material in Congo red dye adsorption, and relates to the technical field of metal organic framework materials. The preparation method provided by the invention comprises the following steps: reacting 2-methylimidazole with 3, 6-dichloropyridazine in an alkaline solvent environment to generate 3, 6-bis (2-methylimidazole) pyridazine; the preparation method comprises the following steps: mixing and coordinating 3, 6-bis (2-methylimidazole) pyridazine, isophthalic acid and a zinc source to prepare a Zn-MOF material; the Zn-MOF material prepared by the preparation method disclosed by the invention can be used for effectively adsorbing Congo red.

The application discloses an indium-based oxide catalyst, which is prepared by the following method: step one, adding indium nitrate, isophthalic acid, DMF, acetonitrile, imidazole and nitric acid into a reaction kettle, reacting at 80 DEG C for 12 hours, then heating to 100 DEG C and reacting for 24 hours, washing with DMF and anhydrous ethanol respectively, and vacuum drying for 12 hours to obtain an In-MOF precursor; step two, keeping the In-MOF precursor under the condition of nitrogen atmosphere and 200-600 DEG C for 4 hours, and naturally cooling to room temperature to obtain the indium-based oxide catalyst. Most of the prepared indium-based oxide catalysts still retain the corresponding three-dimensional hierarchical porous framework structure of the original MOF; the indium-based oxide catalyst contains highly dispersed metal active sites inside, effectively reduces the aggregation of metal oxides or metal elements, and thus exhibits more excellent catalytic activity; the organic ligand isophthalic acid generates a large amount of carbon material through pyrolysis under an inert atmosphere, greatly improving the conductivity of the indium-based oxide catalyst.