56 results about "Phenyltriazine" patented technology

The invention discloses a double-ligand Eu-MOF and application thereof in detection of nicotinamide mononucleotide, and belongs to the technical field of analysis and detection. The preparation method of Eu-TATB-BDC-NH2 comprises the following steps: dissolving 2, 4, 6-tri (4-carboxyphenyl)-1, 3, 5-triazine, 2-aminoterephthalic acid and europium nitrate hexahydrate in a mixed solution of water and N, N-dimethylformamide (DMF), adding nitric acid to adjust the pH value, ultrasonically dispersing uniformly, reacting in a high-pressure reaction kettle (polytetrafluoroethylene lining), cooling, centrifuging, washing and drying to obtain pink solid Eu-TATB-BDC-NH2; when the Eu-MOF is used for detecting the NMN, the method is simple, convenient, rapid and high in sensitivity, and a new strategy is provided for detecting the NMN in an actual sample.

The invention provides a preparation method of 2, 4, 6-tri (4 '-butoxy-2'-hydroxyphenyl)-triazine, and belongs to the technical field of sun-screening agent preparation. The preparation method of the 2, 4, 6-tri (4 '-butoxy-2'-hydroxyphenyl)-triazine comprises the following steps: carrying out substitution reaction on a compound in a formula I to obtain a compound in a formula II; performing hydrolysis reaction on the compound in the formula II to obtain a compound in a formula III; and carrying out Friedel-Crafts reaction on the compound shown in the formula III and cyanuric chloride to obtain a compound shown in a formula IV. The preparation method comprises the following steps: reacting benzoic acid-3-hydroxyphenyl ester with n-butyl bromide to obtain benzoic acid-3-(butyloxy) phenyl ester, removing benzoyl from the benzoic acid-3-(butyloxy) phenyl ester to obtain 3-(butyloxy) phenol, and reacting 3-(butyloxy) phenol with cyanuric chloride to obtain 2, 4, 6-tri (4 '-butoxy-2'-hydroxyphenyl)-triazine, so that the yield of 2, 4, 6-tri (4 '-butoxy-2'-hydroxyphenyl)-triazine is increased, and the yield of 2, 4, 6-tri (4 '-butoxy-2'-hydroxyphenyl)-triazine is increased. The yield of the 2, 4, 6-tri (4 '-butoxy-2'-hydroxyphenyl)-triazine is increased, and the production cost of the yield of the 2, 4, 6-tri (4 '-butoxy-2'-hydroxyphenyl)-triazine is reduced.

The invention discloses a composite sewage treatment agent and a preparation method thereof, and belongs to the technical field of sewage treatment. The composite sewage treatment agent disclosed by the invention is prepared from the following raw material components in parts by mass: 10 to 12 parts of starch-based flocculating agent, 0.8 to 1.2 parts of modified bimetallic biochar and 0.7 to 0.8 part of 2, 4, 6-tri (4-ethynyl phenyl)-1, 3, 5-triazine, wherein the starch flocculant is obtained by carrying out graft copolymerization on an active monomer and amylopectin and then introducing carbazole through Ullmann reaction, and the active monomer at least comprises acrylamide, methacryloyloxyethyl trimethyl ammonium chloride, acryloyloxyethyl trimethyl ammonium chloride and N, N-diallylaniline; the modified bimetal biochar is prepared from bimetal biochar modified by 3-bromopropyl trimethoxy silane, and the modified bimetal biochar is prepared from the modified bimetal biochar modified by the 3-bromopropyl trimethoxy silane modified bimetal biochar. The bimetallic biochar is obtained by loading nano-iron and molybdenum disulfide in two steps through a calcination method and a hydrothermal method by taking straw biomass as a raw material.

The application discloses an alkali ion type covalent organic framework material and a preparation method and application thereof, wherein 2,4,6-tris(4-formylphenyl)-1,3,5-triazine, 1,4-diisocyanobenzene and 2-aminopyridine are used as building units, a covalent organic framework containing pyrimidine is obtained through a condensation reaction, and then a quaternary ammonium reaction and an ion exchange reaction are sequentially performed to obtain the alkali ion type covalent organic framework.The alkali ion type covalent organic framework material prepared by the application has rich alkali sites, developed pore structures and good chemical stability, exhibits good catalytic performance as a catalyst for one-pot preparation of dimethyl carbonate from CO2, an epoxide compound and methanol, and also shows good cycle stability.

The invention discloses a TADF luminescent material and a preparation method thereof, and relates to the technical field of organic optoelectronics, the molecular structure of the material comprises a phenyl triazine derivative electron-deficient core as an electron acceptor and a carbazole or tert-butyl carbazole electron-rich group as an electron donor; an aggregation-induced emission mechanism is introduced into the thermally activated delayed fluorescence material, so that the aggregation-induced quenching problem of a traditional thermally activated delayed fluorescence material and the exciton annihilation effect under high brightness are effectively solved, and meanwhile, the defect that a traditional aggregation-induced emission molecule is low in electroluminescence efficiency is overcome; the material can be used for preparing a non-doped organic electroluminescent device, the process is simplified, the cost is reduced, and the material has application potential in the field of intelligent response materials.

The present application discloses a crystal form A of compound I 6-((5,6-diphenyl-1,2,4-triazine-3-yl)(isopropyl)amino)-N-(methylsulfonyl)hexanamide, a pharmaceutical composition comprising same, a use thereof and a preparation method therefor. The crystal form A of compound I of the present application has diffraction peaks in an X-ray powder diffraction pattern at least at the following diffraction angles 2θ: 9.50±0.2°, 11.05±0.2°, 15.54±0.2°, 16.23±0.2°, 18.23±0.2° and 22.13±0.2°. The crystal form A of compound I of the present application has the advantages of low hygroscopicity, good stability and the like, and has great significance for drug development.

Disclosed in the present application are a crystal form B of compound I (6-((5,6-diphenyl-1,2,4-triazin-3-yl)(isopropyl)amino)-N-(methylsulfonyl)hexanamide) and a pharmaceutical composition thereof, the use thereof and a preparation method therefor. The crystal form B of compound I in the present application at least has diffraction peaks at the following diffraction angles: 3.36±0.2°, 10.07±0.2°, 13.90±0.2°, 16.51±0.2°, 20.20±0.2° and 21.10±0.2° 2θ in the X-ray powder diffraction pattern thereof. The crystal form B of compound I in the present application has diffraction peaks in the X-ray powder diffraction pattern thereof at least at the following diffraction angles: 3.36±0.2°, 10.07±0.2°, 13.90±0.2°, 16.51±0.2°, 20.20±0.2° and 21.10±0.2° 2θ.

The present invention provides a non-conjugated polymer thermally excited delayed fluorescent material based on phenyl acridine and phenyl triazine substituents, which is a polymer obtained by polymerizing styrene with acridine substituents and styrene with phenyl triazine substituents as monomers. The material can reduce the triplet energy difference (ΔE ST ), which improves the fluorescence quantum yield (PLQY), improves the luminescence quality, and greatly improves the overall performance of the prepared thermally excited delayed fluorescence light-emitting device.

The invention relates to the technical field of medicines, and particularly provides application of a 6-(substituted pyridine-4-yl)-5-(substituted phenyl)-1, 2, 4-triazine compound derivative in preparation of an antidepressant drug. A cell experiment proves that the 6-(substituted pyridine-4-yl)-5-(substituted phenyl)-1, 2, 4-triazine compound is an antagonist of an adenosine 2A receptor, and a plurality of animal model experiments prove that the 6-(substituted pyridine-4-yl)-5-(substituted phenyl)-1, 2, 4-triazine compound has a relatively good treatment effect on a plurality of depression models. The compound has an application prospect of being used as an anti-depression treatment drug.

The invention relates to the technical field of super-hydrophobic coatings, and discloses a preparation method and application of a water-based anti-pollution coating. 40-70 parts by weight of an organosilicon triazine polymer, 100 parts by weight of a water-based epoxy resin emulsion, 10-30 parts by weight of nano-silica, 0.6-1 part by weight of an emulsifier, 32-40 parts by weight of a curing agent and the like are mixed and thermally cured to obtain the water-based anti-pollution coating. The water-based anti-pollution coating is obtained. The organic silicon triazine polymer and the epoxy resin are subjected to ring-opening curing reaction, and a heat-resistant phenyl siloxane structure and a phenyl triazine ring structure are bonded into a molecular chain of the epoxy resin, so that the heat resistance of the coating is improved. The organosilicone triazine polymer contains a plurality of long carbon chains with strong hydrophobicity and a phenyl siloxane structure, and is combined with the nano silicon dioxide, so that the coating is endowed with unique super-hydrophobic characteristic, strong anti-settling, waterproof and anti-pollution properties and excellent humidity and heat resistance.

The present invention belongs to the technical field of chemical drugs, and particularly relates to a diphenyltriazine compound, a preparation method thereof, and an application thereof. The diphenyltriazine compound does not have a PGI2 skeleton, has strong selectivity and affinity for the PGI2 receptor, and has good target selectivity compared with PGI2 analogs. Through experimental verification, the in vivo efficacy of this compound is superior to that of selexipag, and its toxicity is far less than that of selexipag. Therefore, this compound can be used as a pulmonary hypertension treatment drug with greater clinical value and development prospects.

The invention belongs to the technical field of chemical analysis, and particularly relates to a sample pretreatment technology and an analysis method of a triazine herbicide. The ionic type conjugated microporous polymer is formed by polymerization of 2, 4, 6-tri (4-ethynyl phenyl)-1, 3, 5-triazine (TEPT) and 1, 3-bis (4-bromophenyl)-1H-imidazole-3-onium bromide, and the ionic type conjugated microporous polymer is formed by polymerization of 1, 3-bis (4-bromophenyl)-1H-imidazole-3-onium bromide. The ionic type conjugated microporous polymer is prepared by cross coupling of 2, 4, 6-tri (4-ethynyl phenyl)-1, 3, 5-triazine (TEPT) and 1, 3-bis (4-bromophenyl)-1H-imidazole-3-onium bromide, and the ionic type conjugated microporous polymer is prepared by cross coupling of 2, 4, 6-tri (4-ethynyl phenyl)-1, 3, 5-triazine (TEPT) and 1, 3-bis (4-bromophenyl)-1H- The ionic conjugated microporous polymer is used for preparing a solid phase extraction (SPE) small column, an SPE-LC-MS / MS is established after the extraction condition is optimized, and the SPE-LC-MS / MS is used for selective enrichment and accurate detection of trace triazine herbicides in environmental water bodies (such as underground water and waste water) and food samples.

The present invention discloses a preparation method of a polyurethane-based UV tack-reducing protective film. The preparation steps include: (1) Under a nitrogen protection atmosphere, in a reaction kettle, hydroxyl-terminated polybutadiene, ethyl acetate, 2-chloro-4,6-diphenyl-1,3,5-triazine, ethylenediamine, dibutyltin dilaurate, and hydroquinone are mixed, heated, isophorone diisocyanate is added, and the mixture is stirred at a constant temperature. Then, 1,4-butanediol is added to obtain an adhesive; (2) Hydroxyethyl acrylate, methyltetrahydrophthalic anhydride, and maleic anhydride are mixed evenly, heated, triethylamine is added, and the mixture is stirred at a constant temperature. Then, epoxy soybean oil is added to obtain a modified acrylate monomer; (3) The adhesive is stirred, and then, under a stirring state, the modified acrylate monomer, 1-ethyl-3-methylimidazolium tetrafluoroborate, sodium octanesulfonate, and a photoinitiator are added to the adhesive, and the mixture is stirred to obtain a UV tack-reducing adhesive. The adhesive is coated to obtain the UV tack-reducing protective film. The UV tack-reducing adhesive prepared by the method of the present invention has a good tack-reducing effect, is easy to peel off after tack reduction, and is convenient to operate.

The invention relates to the technical field of polyurethane elastomers, and discloses a high-temperature-resistant polyurethane elastomer material and a preparation process thereof, 2, 4, 6-tri-(nitronaphthalene-phenyl)-[1, 3, 5] triazine obtained by reaction of 2, 4, 6-tri-(4-bromophenyl)-[1, 3, 5] triazine and 4-nitro-1-naphthol has excellent heat resistance; the aromatic naphthalene ring structure has a rigid structure, the molecular chain of the aromatic naphthalene ring structure is highly regular, and the polyurethane elastomer synthesized by the aromatic naphthalene ring structure has excellent dynamic performance; 2, 4, 6-tri-(aminonaphthalene-phenyl)-[1, 3, 5] triazine after reduction is utilized to prepare a chain extender containing diamine, and the chain extender and isocyanate generate carbamido, so that the tensile strength of the polyurethane elastomer is improved; through the synergistic effect of triazine, naphthalene ring and hydrogen bond, the prepared polyurethane elastomer is excellent in mechanical property and obvious in high temperature resistance advantage.

The application discloses a hydrazone chiral covalent organic framework material and a preparation method thereof. The preparation method comprises the following steps: under an inert atmosphere, a chiral hydrazine precursor with a tert-butyloxycarbonyl protection group is dissolved in an organic solvent together with 2,4,6-tris(4-formylphenyl)-1,3,5-triazine, and then an aqueous acetic acid solution is added, and the mixture is reacted at 90-120 DEG C for 2-5 days; then, insoluble substances are collected, and after washing, drying and deprotection treatment, the hydrazone chiral covalent organic framework material is obtained. The hydrazone chiral covalent organic framework material prepared by the application is used as a heterogeneous catalyst for asymmetric reaction, and exhibits good catalytic effect and chiral selectivity, and also has good chemical stability; after the reaction, the catalyst can be separated and recovered through simple centrifugation or filtration, so that environmental pollution is effectively reduced, the cost is reduced, and the application prospect is good.

The present disclosure relates to the use of certain substituted phenyl triazinanes comprising a cyclopropylcarboxylic acid-based side chain, or agrochemically acceptable salts thereof, for controlling or preventing weed growth in plant growth areas of transgenic crop plants that are tolerant to PPO inhibiting herbicides. The disclosure also provides herbicide tolerant transgenic plants, seeds, cells, and plant parts containing the recombinant DNA molecules, as well as methods of using the same.

The present invention provides a luminescent compound containing a 9,9-coupled carbazole, whose Chinese name is 3,6-di-tert-butyl-9-(3,6-di-tert-butyl-1-(4-(4,6-diphenyl-1,3,5-triazinyl-2-yl)phenyl)-9-hydrocarbazole-9-yl)-1-(4-(4,6-diphenyl-1,3,5-triazinyl-2-yl)phenyl)-9-hydrocarbazole. The present invention also provides a method for preparing the luminescent compound containing a 9,9-coupled carbazole, by preparing an intermediate product, 9,9-coupled-1,1'-3,6-di-tert-butylcarbazole, and then preparing the target product. The target product obtained exhibits multi-channel luminescent properties in both solution and solid states.

The invention discloses an alkali ion type covalent organic framework material as well as a preparation method and application thereof.The alkali ion type covalent organic framework material is prepared by taking 2, 4, 6-tri (4-formyl phenyl)-1, 3, 5-triazine, 1, 4-diisocyanobenzene and 2-aminopyridine as construction units, obtaining a pyrimidine-containing covalent organic framework through condensation reaction, and then sequentially carrying out quaternization reaction and ion exchange reaction to obtain the alkali ion type covalent organic framework material. The alkaline ionic covalent organic framework is obtained. The alkali ion type covalent organic framework material prepared by the invention has abundant alkaline sites, a developed pore structure and good chemical stability, shows good catalytic performance when being used as a catalyst for preparing dimethyl carbonate from CO2, an epoxy compound and methanol in a one-pot manner, and shows good cycle stability.

The invention provides a method for preparing 2, 4, 6-tri (4 '-butoxy-2'-hydroxyphenyl)-triazine, which comprises the following steps: in the presence of an alkaline reagent, dissolving m-bromophenol and n-butyl bromide in a first solvent to carry out nucleophilic substitution reaction, and after the reaction is finished, carrying out post-treatment to obtain 1-bromo-3-butoxybenzene; magnesium chips and an initiator are dissolved in a second solvent for a reaction, then the 1-bromo-3-butoxybenzene is dropwise added for a Grignard reaction, and a 3-butoxybenzene Grignard reagent is obtained; dropwise adding boric acid ester into the 3-butoxybenzene Grignard reagent for reaction, and then adding an oxidizing agent for oxidation reaction to obtain 3-butoxyphenol; 3-butoxyphenol and cyanuric chloride are dissolved in a third solvent for a reaction, lewis acid is added for a Friedel-Crafts reaction, after the reaction is finished, aftertreatment is conducted, and the 2, 4, 6-tri (4 '-butoxy-2'-hydroxyphenyl)-triazine is obtained.The preparation method is lower in cost, higher in yield, high in product quality and easy to control.

The invention belongs to the technical field of phenolic resin, and particularly relates to a preparation method of toughened discoloration-resistant phenolic resin, a binder and application. The preparation method of the toughened discoloration-resistant phenolic resin comprises the following steps: reacting 2, 4-diamino-6-vinyl-S-triazine with a benzoyl chloride derivative to prepare a monoalkenyl phenyl triazine derivative; reacting unsaturated dianhydride with the nanocellulose crystal to obtain a double-bond modified nanocellulose crystal; taking a monoalkenyl phenyl triazine derivative and a monoalkenyl epoxy compound as surface modification raw materials, and carrying out in-situ graft polymerization on the double-bond modified nano cellulose crystal to obtain a modified nano cellulose crystal; in an inert atmosphere, phenol, a catalyst and a formaldehyde solution are added into a reaction kettle to be heated and mixed uniformly, a temperature rise reaction is performed, the modified nanocellulose crystals are added to be mixed uniformly, and the temperature rise reaction continues to be performed, so that the toughened discoloration-resistant phenolic resin is obtained and has excellent discoloration resistance and toughness.

The application discloses a kind of preparation methods of flame-retardant aging-resistant high-transparency polyurethane, the polyurethane is first with 2-amino-1,3-propanediol, 2-chloro-4,6-diphenyl-1,3,5-triazine, diphenyl phosphorochloridate and triphenylchlorosilane composite preparation DADT, then DADT is mixed with polyether polyol, isocyanate to obtain;The preparation method of the application is simple, the process is easy to control, the obtained polyurethane material limit oxygen index reaches 29.6%, meets commercial flame-retardant standard and reaches UL-94 V-0 flame-retardant grade;Material has excellent aging resistance, heat-oxygen tensile strength retention rate is 88.5%, heat-oxygen breaking elongation retention rate is 77.4%, and ultraviolet breaking elongation retention rate is 71.4%, can be applied to automobile ultraviolet protection diaphragm, flame-retardant filled foam, fire guide sign protection film and the like scene.

The invention discloses a bifunctional triazine covalent organic framework material, a solid-phase microextraction probe and application, and the bifunctional triazine covalent organic framework material is prepared from 2, 4, 6-tri (4-formyl-biphenyl-4-yl)-1, 3, 5-triazine, 5 '-(4-amino-3, 5-difluorophenyl)-3, 3', 5, 5 '-tetrafluoro-[1, 1': 3 ', 1'-triphenyl]-4, 4, 6-triazine-1, 3, 5-triazine-1, 3, 5 '-tetrafluoro-[1, 1': 3 ', 1'-triphenyl]-1, 3, 5 '-tetrafluoro-[1, 1': 3 ', 1 ''-triphenyl]-4, 4, 6-triazine-1, 3, 5]- The polymer is formed by polymerizing three monomers, namely 1, 4 ', 4'-diamine and diethyl phosphite. The TFP-COF disclosed by the invention is a porous material containing aromatic rings, fluorine atoms and nitrogen heteroatoms, and has a relatively large conjugated system and a plurality of recognition sites; the hydrophilicity and hydrophobicity of the COFs are adjusted through functionalization of the diethyl phosphite, the hydrophilicity is enhanced, the adsorption performance of the TFP-COF on medium and strong polarity analytes is enhanced, and then high-precision detection of the mycotoxins in a wide polarity range is achieved.

The invention discloses a preparation method and application of a multi-coordination covalent organic framework material, and belongs to the technical field of material preparation. According to the present invention, a 4, 7-bis (4-aminophenyl)-alpha-methyl-1H-benzimidazole-2-methanol monomer and a benzo [1, 2-b: 3, 4-b ': 5, 6-b'] trithiophene-2, 5, 8-trialdehyde monomer or a 2, 4, 6-tri (4-aldehyde phenyl)-1, 3, 5-triazine monomer are adopted to synthesize the novel multi-coordination 2D COFs material with thorium adsorption and thorium-uranium ion separation and selection effects through a solvothermal method; the 2D COFs material prepared by the method disclosed by the invention has a relatively large specific surface area, a regular one-dimensional open channel and abundant skeleton coordination heteroatoms. Based on strong chemical coordination, the 2D COFs material has the advantages of ultrafast adsorption rate, high adsorption capacity and adsorption selectivity and excellent cyclic regeneration performance in the application of selective adsorption and separation of thorium.

The present invention relates to a composition comprising a polyurethane; at least one UV absorber; at least one hindered amine light stabilizer; and at least one phenyltriazine having formula (A) as defined below. The invention also relates to a method for stabilizing a polyurethane, comprising the step of incorporating the at least one UV absorber, the at least one hindered amine light stabilizer, and the at least one phenyltriazine of formula (A) into the polyurethane; and to a mixture comprising the at least one UV absorber, the at least one hindered amine light stabilizer, and the at least one phenyltriazine of formula (A), which mixture prevents the degradation of polyurethanes by light, oxygen and / or heat as a stabilizer.

The invention relates to preparation of a TpHz-TFHz composite material and application of the TpHz-TFHz composite material in photocatalytic full water splitting performance. In order to solve the problems of low light utilization rate and low total water splitting efficiency of the existing single COF materials, namely TpHz and TFHz photocatalytic total water splitting materials, the invention provides a preparation method of a novel TpHz-TFHz composite material, which comprises the following steps: firstly, mixing 1, 3, 5-trialdehyde phloroglucinol, hydrazine hydrate, 2, 4, 6-tri (4-aldehyde phenyl)-1, 3, 5-trialdehyde phloroglucinol, hydrazine hydrate and 2, 4, 6-tri (4-aldehyde phenyl)-1, 3, 5-tri (4-aldehyde phenyl)-1, 3, 5-tri (4-aldehyde phenyl)-1, 3, 5-tri (4-aldehyde phenyl)-1, 3, 5-tri (4-aldehyde phenyl) The preparation method comprises the following steps: uniformly stirring 1, 3, 5-triazine and hydrazine hydrate in a mixed solution of DMSO, ethanol and acetic acid to prepare TpHz COF and a TFHz COF precursor; and heating the two obtained COF precursors at 120 DEG C for 72 hours by a solvothermal method, and reacting to obtain the TpHz-TFHz composite material. The preparation process is simple and effective, the reagent consumption is low, and the yield is high; the photocatalyst provided by the invention can effectively solve the problem of low photocatalytic complete water splitting efficiency, experiments show that the composite material has excellent photocatalytic complete water splitting performance, the rate of hydrogen production by complete water splitting under visible light irradiation can reach 70.71 [mu] mol.h <-1 >. G <-1 >, and the rate of oxygen production can reach 35.35 [mu] mol.h <-1 >. G <-1 >.

The application provides a high-efficiency thermally activated delayed fluorescence host material and a preparation method and application thereof, belongs to the technical field of organic photoelectric materials, and is obtained by combining 5,7-dihydro-7,7-dimethylindeno[2,1-b]carbazole and 2-(3-bromophenyl)-4,6-diphenyl-1,3,5-triazine, has the advantages of simple synthesis method, easily obtained raw materials, stable material structure, easy storage, and the like. The synthesized thermally activated delayed fluorescence host material is applied to an OLED device, the bromine atom attached to the triazine fragment enhances single-triplet state exciton conversion, improves high-efficiency energy transmission to a guest light-emitting material, and thus improves device efficiency. Compared with a traditional host material CBP, the application has obvious advantages, and thus has a wide application prospect and is optimistic, and is expected to be widely applied in the fields of flat panel display and solid-state lighting.

The present invention discloses a preparation method and application of a multi-coordinated covalent organic framework material, which belongs to the field of material preparation technology. The present invention utilizes 4,7-bis(4-aminophenyl)-α-methyl-1H-benzimidazole-2-methanol monomer and benzo[1,2-b:3,4-b':5,6-b']terthiophene-2,5,8-trialdehyde monomer or 2,4,6-tris(4-formaldehydephenyl)-1,3,5-triazine monomer to synthesize a novel multi-coordinated 2D COFs material with thorium adsorption and thorium-uranium ion separation selectivity by a solvent thermal method. The 2D COFs material prepared by the present invention has a large specific surface area, a regular one-dimensional open channel and abundant skeleton coordinated heteroatoms. Based on strong chemical coordination, the 2D COFs material has both ultrafast adsorption rate, high adsorption capacity and adsorption selectivity, and excellent recycling performance in the application of selective adsorption and separation of thorium.

This invention relates to the field of polyurethane elastomer technology, and discloses a high-temperature resistant polyurethane elastomer material and its preparation process. The 2,4,6-tri-(4-bromophenyl)-[1,3,5]triazine obtained by reacting 2,4,6-tri-(nitronaphthyl-phenyl)-[1,3,5]triazine with 4-nitro-1-naphthol exhibits excellent heat resistance. The aromatic naphthalene ring structure has a rigid structure and its molecular chain is highly regular, resulting in polyurethane elastomers synthesized from it exhibiting excellent dynamic properties. A chain extender containing diamine is prepared using the reduced 2,4,6-tri-(aminonaphthyl-phenyl)-[1,3,5]triazine, which reacts with isocyanate to form urea groups, thereby improving the tensile strength of the polyurethane elastomer. The synergistic effect of the triazine, naphthalene ring, and hydrogen bonds results in a polyurethane elastomer with excellent mechanical properties and significant high-temperature resistance.

Embodiments of the present disclosure provide a glass fiber reinforced polyamide material and a method for preparing thereof. The glass fiber reinforced polyamide material includes components in the following parts by weight: 48-99.8 parts of a polyamide resin, 0-50 parts of a glass fiber, 0.05-2 parts of a thermal stability additive, and 0.1-2 parts of other additives. The thermal stability additive is hydroxyphenyltriazine compounds.

The invention provides photoresist stripping liquid as well as a preparation method and application thereof, and belongs to the technical field of semiconductor manufacturing processes. The photoresist stripping liquid comprises the following raw materials in parts by weight: 20-75 parts of an alkyl ketone organic solvent, 5-30 parts of a sulfoxide organic solvent, 5-20 parts of an alcohol amine organic solvent and 0.1-5 parts of a functional additive, the functional additive is a 2, 4, 6-tri (4-phenyl)-1, 3, 5-triazine derivative and methyl 4-isopentenyloxycinnamate, and the functional additive is a 2, 4, 6-tri (4-phenyl)-1, 3, 5-triazine derivative and methyl 4-isopentenyloxycinnamate. According to the invention, the planar conjugation of the phenyl triazine derivative and the multi-claw anchoring effect of a functional group are utilized, and the long-chain hydrophobic effect of the methyl 4-isopentenyloxycinnamate is combined, so that the photoresist stripping liquid has targeted photoresist removal and multi-layer corrosion resistance in chip cleaning, and the problems that the surface photoresist is difficult to clean and the yield is low in chip production are solved.