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128 results about "Naphthylamine" patented technology

Nitrogen substituted aromatic hydrocarbon existing as two different isomers, both carcinogenic and used in dyes.

Antioxidant insulating oil as well as preparation method and application thereof

The invention relates to the technical field of insulating oil, and particularly discloses antioxidant insulating oil as well as a preparation method and application thereof. The antioxidant insulating oil provided by the invention comprises synthetic oil, a composite antioxidant and a pour point depressant, the composite antioxidant is prepared from the following components in parts by weight according to the weight of the composite antioxidant: 15 to 25 parts of N-phenyl-1-naphthylamine, 25 to 40 parts of antioxidant 5057, 15 to 25 parts of 3-diisobutoxy thiophosphoryl thio-2-methyl-propionic acid and 10 to 15 parts of tetraethylene glycol dimethyl ether trihydrate; the invention also provides a preparation method of the antioxidant insulating oil. The antioxidant insulating oil provided by the invention not only has good insulativity and heat dissipation performance, but also has excellent oxidation resistance, and can meet the use requirements in a long-time high-temperature electric field environment when being used for a motor of an electric motorcycle.
Owner:TONGYI PETROLEUM CHEM CO LTD

Preparation method of semi-raspberry-shaped Janus particles, method for modifying semi-raspberry-shaped Janus particles with chiral carbon dots and application of semi-raspberry-shaped Janus particles

The invention relates to a preparation method of semi-raspberry-shaped Janus particles, preparation of carbon dot modified semi-raspberry-shaped Janus particles and application of the particles in fluorescence detection.According to the preparation method of the semi-raspberry-shaped Janus particles, polystyrene is used as a seed, glycidyl methacrylate (GMA) is used as a monomer, ethylene glycol dimethacrylate (EDMA) is used as a cross-linking agent, and the carbon dot modified semi-raspberry-shaped Janus particles are prepared. The semi-raspberry-shaped Janus particles with morphology and chemical anisotropy are prepared through a photo-initiation seed swelling method. The invention also provides a method for preparing a chiral carbon dot by taking citric acid and S-1, 1 '-co-2-naphthylamine / R-1, 1'-co-2-naphthylamine as precursors through a hydrothermal method, and grafting the chiral carbon dot onto the half raspberry-shaped Janus particle to obtain the half raspberry-shaped Janus particle modified by the chiral carbon dot. And finally, realizing fluorescence detection of the L-lysine by the chiral carbon dot modified semi-raspberry-shaped Janus particles by using a fluorescence spectrophotometric method.
Owner:BEIFANG UNIV OF NATITIES

Method for detecting two chloronaphthylamines in drinking water by gas chromatography-mass spectrometry

The invention provides a method for detecting two types of chloronaphthylamine in drinking water by gas chromatography-mass spectrometry, which comprises the following steps: optimizing conditions such as a chromatographic column and temperature programming thereof, an extracting solvent and the use amount thereof, and combining liquid-liquid extraction with a gas chromatography-mass spectrometer to detect two types of chloronaphthylamine in drinking water. The invention establishes a novel method for simultaneously determining the content of two novel nitrogen-containing disinfection byproducts 2-chloro-1-naphthylamine and 4-chloro-1-naphthylamine in drinking water. The method has the characteristics of simplicity, accuracy, good reproducibility, high sensitivity and the like, is suitable for quantitative detection of 2-chloro-1-naphthylamine and 4-chloro-1-naphthylamine in drinking water, and provides a technical means for guaranteeing the quality safety of domestic drinking water.
Owner:SUZHOU JIANYUAN TESTING TECH CO LTD

Natural ester insulating oil bifunctional antioxidant as well as preparation and application thereof

The invention discloses a natural ester insulating oil bifunctional antioxidant as well as preparation and application thereof, and relates to the technical field of insulating oil. According to the bifunctional antioxidant, hydroxyl (-OH) and tert-butyl (-C (CH3) 3) are introduced on the basis of an N-phenyl-alpha-naphthylamine molecular structure, when the bifunctional antioxidant is added into natural ester insulating oil, the tert-butyl can effectively capture free radicals in the molecular structure, the hydroxyl improves the free radical scavenging efficiency, and the antioxidant effect is further improved; hydroxyl can also effectively absorb high-energy ultraviolet light, the lightning impulse resistance of the insulating oil is enhanced, the oxidation resistance of the insulating oil is improved, meanwhile, the lightning impulse resistance of the insulating oil is improved, a synergistic gain effect is achieved, the service life of the insulating oil is jointly prolonged, and the operation safety of electrical equipment is improved.
Owner:GUANGDONG POWER GRID CO LTD +1

Continuous flow preparation method of photosensitizer

The invention provides a continuous flow preparation method of a photosensitizer, the photosensitizer is prepared by using a continuous flow reaction device, and the continuous flow reaction device comprises a reaction unit, a post-treatment unit, a diazotization unit, a chlorination unit and an esterification unit which are communicated in sequence; the preparation method of the photosensitizer comprises the following steps: conveying a reaction raw material to a continuous flow reaction device through a feed port, and enabling the reaction raw material to sequentially flow through a reaction unit and a post-treatment unit to obtain a first reaction liquid; the first reaction liquid sequentially flows through the diazotization unit, the chlorination unit and the esterification unit through the feeding hole to obtain the photosensitizer; reaction raw materials comprise 2-naphthylamine-1, 5-disulfonic acid, solid alkali and a catalyst, the catalyst comprises at least one of 1, 4, 7, 10, 13, 16-hexaoxacyclo-octadecane, 1, 4, 7, 10, 13-pentaoxacyclo-pentadecane and dicyclohexane-18-crown (ether)-6, an esterifying agent comprises at least one of 2, 3, 4-trihydroxy benzophenone and 2, 3, 4, 4-tetrahydroxy benzophenone, and the yield and quality of the photosensitizer are improved.
Owner:HANGZHOU XIANYAN TECH CO LTD

Oil field annulus protection fluid as well as synthesis method and application thereof

The invention belongs to the technical field of oil exploitation, and particularly relates to an oil field annulus protection fluid and a synthesis method and application thereof. The synthesis method comprises the following steps: sequentially adding cyanuric chloride and water into a reactor, stirring, cooling to below 5 DEG C, adding iminodi (methyl phosphoric acid), and maintaining the pH value to be 6-7; adding 2-naphthylamine-3, 6, 8-trisulfonic acid into the reactor, slowly stirring and heating, maintaining the pH value to be 6-7, and continuously stirring; adding 4, 6-dichloro-2-aminophenol into the reactor, slowly stirring and heating, maintaining the pH value to be 7-8, and continuously stirring; and adjusting the pH to 2-3, carrying out reduced pressure distillation, cooling, crystallizing and filtering to obtain a solid, and drying overnight to obtain the product annulus protection liquid. The corrosion inhibitor has good corrosion prevention, corrosion inhibition and sterilization effects.
Owner:DONGYING SPRING PETROLEUM ENG TECH

A 5-position binaphthyl diisocyanate, a synthetic method thereof and application thereof in preparing binaphthyl polyurethane materials

The application discloses a 5-position linked naphthalene diisocyanate, a halogenated naphthylamine or a phenolic hydroxyl naphthylamine, which is subjected to an acylation reaction, then subjected to an Ullmann coupling reaction in the presence of a ligand and an inorganic base and under the protection of an inert gas by using a metal or a salt thereof as a catalyst, subjected to amide hydrolysis, and then subjected to a carbonacylation reaction with a carbonacylation reagent to obtain the 5-position linked naphthalene diisocyanate. The application further provides a synthesis method of the 5-position linked naphthalene diisocyanate. The application further provides an application of the 5-position linked naphthalene diisocyanate in preparation of urethane rubber and elastomer, urethane fiber, cast urethane rubber, urethane emulsion and paint, urethane adhesive, shock-absorbing foam material, energy-absorbing foam material and damping foam material. The polylinked naphthalene urethane prepared by using the 5-position linked naphthalene diisocyanate has high cohesive energy and impact modulus, and can be widely applied to high dynamic load and heat-resistant occasions.
Owner:QINGDAO CASCADA RUBBER & PLASTIC CO LTD

Low-ash-content high-performance engine lubricating oil composition and preparation method thereof

The invention discloses a low-ash high-performance engine lubricating oil composition. The low-ash high-performance engine lubricating oil composition comprises at least two metal detergents; at least three antioxidants; a sulfur-containing anti-wear agent; at least one friction reducing agent; at least one viscosity index improver; at least one pour point depressant; at least one anti-foaming agent; and at least two base oils. The invention also discloses a preparation method of the lubricating oil composition, which specifically comprises the following steps: adding the base oil into a blending kettle, heating and stirring, adding the anti-foaming agent, the pour point depressant and the viscosity index improver, continuously stirring, sequentially adding the antioxidant, the metal detergent, the sulfur-containing anti-wear agent and the antifriction agent, and uniformly stirring to obtain the lubricating oil composition. According to the invention, ZDDP is compounded with an amine or naphthylamine high-temperature antioxidant to form an antioxidant compound system, and then a chalcogenide anti-wear agent is compounded, so that the oil product has excellent high-temperature oxidation resistance and low-temperature wear resistance at the same time; after the alkyl salicylate detergents with different base numbers are compounded, the ash content of an oil product can be controlled to be not greater than 0.8%.
Owner:PETROCHINA CO LTD

HPLC (High Performance Liquid Chromatography) detection method for propranolol hydrochloride genotoxic impurity 1-naphthylamine and application thereof

The invention relates to the technical field of analytical chemistry, and particularly discloses an HPLC (High Performance Liquid Chromatography) detection method of propranolol hydrochloride genotoxic impurity 1-naphthylamine and application of the HPLC detection method. The HPLC detection method for the propranolol hydrochloride genotoxic impurity 1-naphthylamine provided by the invention comprises the following steps: preparing a reference substance solution, preparing a test solution, and carrying out liquid chromatography detection, liquid chromatography detection: injecting the reference substance solution and the test solution into a liquid chromatograph, and carrying out separation detection by adopting a mobile phase gradient elution method; a used chromatographic column is a chromatographic column with octadecylsilane chemically bonded silica as a filler. The HPLC detection method of the propranolol hydrochloride genotoxic impurity 1-naphthylamine provided by the invention can rapidly and accurately detect the genotoxic impurity 1-naphthylamine in a propranolol hydrochloride bulk drug or a propranolol hydrochloride injection, and has the advantages of good detection accuracy, high sensitivity, good reliability and high detection sensitivity. And the quality control of propranolol hydrochloride bulk drugs or injections can be realized.
Owner:HUAXIASHENGSHENG PHARMA BEIJING CO LTD

Preparation process of reddish brown reactive dye

PendingCN120865731AReactive dyesToluidineSlurry
The invention belongs to the field of reactive dye synthesis, and discloses a preparation process of a reddish brown reactive dye, which comprises the following steps: diazotizing 2-naphthylamine-4, 6, 8-trisulfonic acid, coupling with 1-naphthylamine-7-sulfonic acid to obtain a first-couple material, diazotizing the first-couple material again, coupling with m-toluidine to obtain a second-couple material, refining the second-couple material to obtain a color base, and drying to obtain the reddish brown reactive dye. Carrying out primary condensation on cyanuric chloride and 2, 5-aniline disulfonate to obtain a primary condensation material, carrying out secondary condensation on the primary condensation material and a color base, and filtering the secondary condensation slurry to obtain the reddish brown reactive dye primary stock. The preparation process provided by the invention is stable and low in spray drying energy consumption, and the prepared primary pulp has the advantages of high purity and high solid content, and is excellent in solubility and high in fastness to washing.
Owner:ZHEJIANG JINGGUANG IND

Fused heterocyclic compound and organic electroluminescent device containing same

PendingCN120865265AGroup 3/13 element organic compoundsLuminescent compositionsAnthramineFluoranthene
The invention relates to the technical field of organic electroluminescence, in particular to a fused heterocyclic compound and an organic electroluminescence device containing the compound. The compound has a characteristic double-boron-nitrogen aromatic fused structure, and rigid substituents such as phenanthrene amine, naphthylamine, anthramine and fluoranthene amine are introduced to the periphery of the compound, so that a molecule has a relatively high T2 energy level, the T1 energy level is remarkably reduced, T2 is slightly higher than S1 energy level, T2-T1 internal conversion is inhibited, T2-S1 exciton up-conversion is promoted, the exciton utilization rate is increased, and the luminous efficiency is remarkably improved. An OLED device prepared from the compound has the advantages of low starting voltage, high color purity, high efficiency and excellent service life, meets the requirements of a high-performance display panel on a luminescent material, and has a good application prospect.
Owner:ZHEJIANG HONGWU TECH CO LTD

Production process of J acid with high purity and high amino value

The invention provides a production process of high-purity and high-amino-value J acid, and relates to the technical field of dye intermediate production processes. The production process comprises the following steps: (1) tobias acid sulfonation; (2) carrying out hydrolysis and salting-out on the 2-naphthylamine-1, 5, 7-trisulfonic acid; (3) filtering, washing and dissolving the 2-naphthylamine-5, 7-disulfonic acid monosodium salt; (4) concentration of 2-naphthylamine-5, 7-disulfonic acid disodium salt and mirabilite treatment; (5) carrying out alkali fusion on the 2-naphthylamine-5, 7-disulfonic acid disodium salt; (6) acidification of J acid sodium salt; the step (6) comprises the following specific steps: mixing the alkali fusion material with water, and adding dilute sulphuric acid to finish first acidification; and filtering the material after the first acidification to obtain a filtrate, and adding dilute sulphuric acid to complete the second acidification. The acidification process of the J acid production process is optimized, and the purity and amino value of the J acid are effectively improved through two acidification processes.
Owner:TANGSHAN HUAYI IND LTD BY SHARE LTD

Thiamine compounds and uses thereof

The present application provides thiamine compounds shown in formula (I) and application thereof. The thiamine compounds of the present application can be used for preparing polyolefin antioxidants. The thiamine compounds of the present application introduce sulfide bonds in aryl secondary amine, so that the antioxidant contains naphthylamine groups of primary antioxidants and sulfide groups of auxiliary antioxidants, which not only can terminate free radicals by providing hydrogen protons, but also can react with hydroperoxides, so as to achieve the dual effects of primary and auxiliary antioxidants, and thus the antioxidant effect is significantly enhanced.
Owner:PETROCHINA CO LTD

Compressor oil composition and preparation method thereof

The invention relates to the field of lubricating oil, in particular to a compressor oil composition which is prepared from the following components in parts by weight: 0.005 to 0.2 part of an anti-rust agent, 0.05 to 1 part of an extreme pressure anti-wear agent, 0.01 to 0.5 part of a friction reducing agent, 3 to 8 parts of synthetic ester, 0.01 to 1 part of an antioxidant, 0.001 to 0.1 part of an anti-foaming agent and 90 to 97 parts of base oil. The anti-friction agent is a trimethylolpropane-triacid ester derivative, the anti-rust agent is formed by mixing an alkenyl succinic acid half-ester derivative and a carboxyl imidazoline derivative, and the anti-wear reagent at extreme pressure is formed by mixing triphenyl phosphate and an alkyl thiophosphate derivative. The antioxidant is formed by mixing any two of alkyl diphenylamine, alkyl phenyl-alpha-naphthylamine and alkyl hindered phenol. The invention further relates to a preparation method of the compressor oil composition. The compressor oil composition provided by the invention has excellent washing resistance and rust resistance.
Owner:PETROCHINA CO LTD

An ultra-thin photosensitive resin coating and its preparation method

The present invention discloses an ultra-thin photosensitive resin coating and a preparation method thereof, relating to the technical field of coating materials. First, the present invention modifies epoxy resin with 3-hydroxy-1-naphthylamine, 5-chloro-1,3,3-trimethyl-2-methylene indoline, 3-aminophthalate and silver chloride to form a photosensitive resin, enabling the coating to change with the change of light; then, ion beam assisted spinning is used to form a copper fiber film on the surface of the spectacle frame, and this is used as the cathode of the electric field. The photosensitive resin is ionized by a high-voltage electric field and deposited on the spectacle frame, and then alumina and silica films are grown layer by layer through electrostatic field assisted spraying, effectively blocking water and oxygen substances. The ultra-thin photosensitive resin coating prepared by the present invention has the effects of photosensitive color change and yellowing resistance.
Owner:YICHUN KAIQI BIOTECHNOLOGY CO LTD

Binaphthylamine derivative as well as preparation method and application thereof

The invention relates to the technical field of organic luminescence, and discloses a binaphthylamine derivative as well as a preparation method and application thereof. According to the organic compound based on the binaphthylamine derivative, a series of D-A structure molecules are synthesized by taking a binaphthylamine-containing group as a donor structure and connecting different diphenyl sulfone derivative receptors, and the organic compound has relatively high quantum yield and can be applied to the fields of organic electroluminescent devices, fluorescent probes, asymmetric catalysis, information storage and the like.
Owner:GUANGDONG UNIV OF TECH

Chiral thiourea / phosphine difunctional organic catalyst as well as preparation and application thereof

The invention provides a preparation method of a novel chiral thiourea / phosphine bifunctional organic catalyst with a cis-cyclic 1, 2-phosphinamine skeleton and application of the novel chiral thiourea / phosphine bifunctional organic catalyst in an asymmetric catalytic reaction. The chiral organic catalyst is prepared by taking cis chiral 2-(diphenylphosphine)-1, 2, 3, 4-tetrahydro-1-naphthylamine and an isothiocyanate compound as raw materials through a one-step reaction under a mild condition. The chiral thiourea / phosphine bifunctional organic catalyst is simple to prepare and stable in property, and shows excellent catalytic activity and stereoselectivity in an asymmetric hydrosilylation reaction of o-amido benzophenone.
Owner:DALIAN INSTITUTE OF CHEMICAL PHYSICS CHINESE ACADEMY OF SCIENCES

Hydrogen fuel engine oil complex additive composition and hydrogen fuel engine oil composition

The application discloses a hydrogen fuel engine oil composite additive composition, which comprises 3.0-5.0% high-alkali-value magnesium sulfonate, 12.0-20.0% low-alkali-value calcium sulfonate, 3.0-4.0% high-alkali-value calcium sulfide alkyl phenol, 2.0-5.0% amine type antioxidant, 2.0-5.0% phenol type antioxidant, 2.0-5.0% alpha-naphthylamine, 1.5-3.0% dibutyl dithiocarbamic acid ester, 1.5-3.0% anti-wear agent, 0.2-0.5% fatty amide, and the rest is ashless dispersant. The application further discloses a hydrogen fuel engine oil composition, which comprises 14.4-15.5% composite additive composition, 7.0-9.0% tackifier, 0.2-0.5% pour point depressant, and the rest is base oil. The composite additive improves the demulsification performance of the hydrogen fuel engine oil under high-temperature and high-pressure conditions, and further improves the water separation property and other comprehensive use performances of the oil product.
Owner:PETROCHINA CO LTD

Ashless antioxidant composition suitable for ultrahigh-temperature lubricating environment, lubricating oil and application thereof

PendingCN121991735AImprove antioxidant capacityMeet the demand for antioxidant propertiesAdditivesPhenolic antioxidantProcess engineering
The invention discloses an ashless antioxidant composition applicable to an ultrahigh-temperature lubricating environment, lubricating oil and application of the ashless antioxidant composition. The ashless antioxidant composition is prepared from the following components in parts by mass: 2.5 to 5 parts of dialkyl diphenylamine, 2.5 to 7.5 parts of N-phenyl-alpha-naphthylamine, 0 to 2.5 parts of phenolic antioxidant and 0 to 2.5 parts of amine antioxidant. The ashless antioxidant composition does not contain metal elements, is an ashless antioxidant system, has a good antioxidant effect, can effectively control the viscosity change and acid value increase of an oil product in an ultrahigh-temperature environment of 220-300 DEG C, has an obvious inhibition effect on the generation of high-temperature sediments, and can meet the requirement of an aero-engine on the antioxidant performance of lubricating oil in the ultrahigh-temperature environment.
Owner:PETROCHINA CO LTD

Lubricant composition for gas turbines

The present invention relates to a lubricant composition, in particular for a gas or steam turbine, comprising: —at least one base oil; —at least one phenylnaphthylamine (PAN) compound, preferably alkylphenyl-α-naphthylamine (APAN) compound; —at least one diphenylamine (DPA) compound, preferably dialkyl-diphenylamine compound; and —at least one phosphite ester compound, preferably triaryl phosphite ester compound; in which the ratio by weight between said diphenylamine compound(s) and said phosphite ester compound(s) is strictly greater than 1.0.
Owner:TOTALENERGIES ONETECH

Hybrid polyphosphazene and preparation method and application thereof, modified ethylene propylene diene monomer material and preparation method and application thereof

The invention belongs to the technical field of thermal protection materials for spaceflight and weapons, and particularly relates to hybrid polyphosphazene and a preparation method and application thereof, and a modified ethylene propylene diene monomer material and a preparation method and application thereof. The hybrid polyphosphazene provided by the invention comprises acetenyl aniline polyphosphazene with a structure as shown in a formula 1, naphthylamine polyphosphazene with a structure as shown in a formula 2 or allyl phenoxy polyphosphazene with a structure as shown in a formula 3. The hybrid polyphosphazene provided by the invention is used as a modifier, and a functional group and a phosphorus-nitrogen long chain of the hybrid polyphosphazene can be co-crosslinked with EPDM to construct an interpenetrating network structure so as to improve the mechanical property and ablation resistance of an EPDM heat insulating layer. According to the modified ethylene propylene diene monomer material provided by the invention, the mechanical property, the elasticity and the ablation resistance of the material are remarkably improved on the premise of keeping the density basically unchanged, and the modified ethylene propylene diene monomer material can be widely applied as a heat insulating layer.
Owner:XIAN BESDI NEW MATERIALS TECHNOLOGY CO LTD

Cement composite material for mortar with high anti-cracking and anti-bending strength and its preparation method

ActiveCN117510123BButanediolCement mortar
The present application relates to a kind of cement composite for anti-cracking, anti-bending strength mortar, it is first using the component including triethylene glycol, dodecanedioic acid, polypropylene glycol, 2-naphthylamine-1, 5-disulfonic acid, 1, 4-butanediol-2-sodium sulfonate, citric acid, triethanolamine to prepare special toughness structure, hydrophilic polymer polyester resin, then it is fully mixed with cement clinker, gypsum, blast furnace slag and coal gangue powder etc., powder preparation is obtained.The cement product prepared in the present application contains organic polymer polyester resin that can be hydrated and dispersed, the mortar material prepared by using the cement product of the present application not only has excellent anti-cracking performance, but also has high bending strength, which is much better than ordinary cement, and can be used in the field of cement mortar material with high requirements for anti-cracking and bending strength.
Owner:ANHUI JINGQIANG NEW MATERIALS CO LTD

Medicament combination for improving recovery rate of copper, nickel, iridium and rhodium in copper-nickel symbiotic sulfide ore

PendingCN121514055AFlotationIridiumEngineering
The invention provides an agent composition for improving the recovery rate of copper, nickel, iridium and rhodium in copper-nickel symbiotic sulfide ore, and the agent composition comprises the following raw materials in parts by mass: 85-90 parts of sodium diethyldithiocarbamate, 1-10 parts of mercaptoacetic acid-2-naphthylamine, 1-5 parts of furanformyl dioxime and 1-10 parts of dialkyl dithio-oxadiamide. The invention also provides a use method of the medicament composition. The use method comprises the step of adding the sodium diethyldithiocarbamate, the mercaptoacetic acid-2-naphthylamine, the furanformyl dioxime and the dialkyl dithio-oxadiamide at different time. The raw materials of the medicament provided by the invention are synergistically used, and recovery of independent iridium and rhodium minerals and iridium and rhodium minerals closely linked with (or wrapped by fine nickel sulfide and copper) fine nickel sulfide and copper in ores is considered.
Owner:SHANGLUO UNIV

Bridge waterproof material and preparation method thereof

The application relates to a bridge deck waterproof material and a preparation method thereof, which is prepared from the following raw materials in parts by weight: 15-22 parts of fluorosilicon type thermoplastic polyurethane elastomer, 65-72 parts of asphalt, 3-5 parts of cellulose nanocrystals, 5-8 parts of 2-naphthylamine-4,8-disulfonic acid, 0.8-1.5 parts of diaphosphorus pentoxide, 0.5-0.8 parts of polyphosphoric acid, 4-6 parts of vinyl hydroxyl silicone oil, 3-5 parts of SBR rubber powder, 1-2 parts of a coupling agent, 5-8 parts of reinforcing material, 1-3 parts of 1,3,5-triglycidyl-S-triazinetrione, 1-2 parts of (perfluoropropane-2,2-diyl)bis(4,1-phenylene)diacrylate, 3-5 parts of a plasticizer, 1-3 parts of an anti-aging agent, and 0.1-0.3 parts of an initiator. The bridge deck waterproof material has the advantages of large bonding strength, good low-temperature crack resistance, high-temperature resistance and aging resistance, excellent waterproof performance and long service life.
Owner:BEIJING AOK REAL DETECTION TECH DEVCO

A method for synthesizing 9,10-bis[N-(2-naphthyl)anilino]anthracene without metal catalysis

The invention discloses a method for synthesizing 9,10-bis[N-(2-naphthyl)anilino]anthracene without metal catalysis, relates to the technical field of organic luminescent material preparation, and aims to solve the problems of large amounts of waste generated and complex steps in existing methods. The method comprises the following steps: adding refined anthracene, N-phenyl-2-naphthylamine, an oxidant, an additive, and a solvent into a reaction vessel under an oxidizing atmosphere; heating the reaction after the addition is completed, heating the temperature to reflux or 80°C to 120°C, reacting for 8 to 15 hours, and cooling the temperature to room temperature, directly filtering to obtain a crude product, and separating to obtain 9,10-bis[N-(2-naphthyl)anilino]anthracene. The method has simple steps and is easy to operate, requiring only mixing all raw materials, heating the reaction, and then separating. The raw materials are low in cost and readily available, do not require a catalyst, are free of metal, and effectively avoid metal residues in the later stage. The method has simple post-processing, reduces the amount of three wastes, and has excellent purity and considerable yield, thus conforming to the development direction of green chemistry.
Owner:SINOSTEEL ANHUI TIANYUAN TECH

Microneedle patch containing alpha-naphthylamine carbon dots and application of microneedle patch in detection of nitrite by colorimetric-fluorescence dual-mode signals

The invention discloses a microneedle patch containing alpha-naphthylamine carbon dots and application of the microneedle patch to detection of nitrite through colorimetric-fluorescence dual-mode signals, and belongs to the technical field of analytical chemistry. Alpha-naphthylamine is used as a carbon source and is prepared into the blue fluorescence alpha-naphthylamine carbon dots, the carbon dots have good color and fluorescence changes, and the blue fluorescence alpha-naphthylamine carbon dots are used as a color developing agent to be prepared into the microneedle patch so as to realize NO2-colorimetric-fluorescence dual-sensing application in food. The microneedle patch provided by the invention is used for carrying out nondestructive testing on a sample, whether nitrite exceeds the standard or not can be preliminarily judged through naked eyes, a colorimetric-fluorescence dual-mode signal is read through mobile phone photographing to obtain photographing data, and the content of nitrite in the sample can be accurately quantified after further processing; therefore, rapid and simple detection of nitrite in food is realized. Therefore, the invention has important application value and wide application prospect.
Owner:SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING

High-stability aviation gasoline and preparation method thereof

The invention discloses a preparation method of high-stability aviation gasoline, and relates to the field of fuel oil. When the high-stability aviation gasoline is prepared, magnetic powder reacts with mercaptoacetic acid and then reacts with polyvinylpyrrolidone to prepare porous sulfydryl modified magnetic particles; the porous sulfydryl modified magnetic particles, bis (3, 5-dicarboxyphenyl) azo and copper nitrate trihydrate are subjected to a reaction, and a magnetic desulfurizer is prepared; the method comprises the following steps: reacting a magnetic desulfurizer with base oil, and removing by magnetic adsorption to prepare primarily processed gasoline; the preparation method comprises the following steps: reacting diphenylamine, N-phenyl-alpha-naphthylamine and octylene to prepare an antioxidant; and uniformly mixing the antioxidant and the primarily processed gasoline. The high-stability aviation gasoline prepared by the preparation method disclosed by the invention has relatively low sulfur content and good stability.
Owner:SHANDONG NORTH NENGXIN CHEM TECH CO LTD

High-orientation perovskite, preparation method and solar cell prepared by using high-orientation perovskite

The invention belongs to the technical field of perovskite cells, and particularly discloses high-orientation perovskite, a preparation method and a solar cell prepared from the high-orientation perovskite, and the high-orientation perovskite comprises a mixture of naphthalene derivatives of sulfonic acid groups and amido, a perovskite component and a precursor solution, the mixture of naphthalene derivatives of sulfonic groups and amido is a mixture of potassium 6-hydroxy-2-naphthalene sulfonate and 6-bromo-2-naphthylamine hydrochloride, the molar mixing ratio of the potassium 6-hydroxy-2-naphthalene sulfonate to the 6-bromo-2-naphthylamine hydrochloride is 1: 0-1: 1, the perovskite component mainly comprises ABX3, and A is at least one of Cs, FA and MA; b is at least one of Pb and Sn; and X is I. According to the invention, crystal lattices are anchored through coordination of sulfonate radicals / hydroxyl radicals and Pbas, occupation of ammonium radicals on FAvacancies and the like, aromatic interaction among naphthalene rings in molecules is utilized to synergistically guide perovskite to orderly grow out of a (100) plane, inhibit lattice inclination and defect formation and regulate and control the orientation of perovskite crystals, so that the perovskite film with high orientation is obtained, and the perovskite film has good application prospects. And the photovoltaic performance of the perovskite solar cell is improved.
Owner:HUAZHONG UNIV OF SCI & TECH +1

Mitochondria-targeted pyridycyanine photosensitizer compound, preparation method, compound and application thereof

The invention discloses a mitochondrial targeting pyridinium cyanine photosensitizer compound, a preparation method, a compound and application thereof, and the pyridinium cyanine photosensitizer compound is generated through organic reaction by taking N-methyl-N-hydroxyethyl naphthylamine as an electron donor, pyridinium cyanine as an electron acceptor and double bonds as pi bridge connection. After the pyridycyanine photosensitizer compound is self-assembled and combined with HSA, specific fluorescent staining of mitochondria is achieved, active oxygen is efficiently generated under white light irradiation and directly acts on the mitochondria, and the cancer cell killing efficiency is improved. The preparation method is simple and efficient, and the prepared photosensitizer compound has a good photodynamic therapy effect and biological safety and has a good application prospect.
Owner:NORTHWESTERN POLYTECHNICAL UNIV