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1105 results about "Naphthalene" patented technology

Naphthalene is an organic compound with formula C₁₀H₈. It is the simplest polycyclic aromatic hydrocarbon, and is a white crystalline solid with a characteristic odor that is detectable at concentrations as low as 0.08 ppm by mass. As an aromatic hydrocarbon, naphthalene's structure consists of a fused pair of benzene rings. It is best known as the main ingredient of traditional mothballs.

Organic compound and application thereof

The invention relates to an organic compound, application of the compound and an organic electroluminescent device containing the compound. The organic compound has a structure as shown in formula (1), ring A, ring B, ring C, ring D, ring E, ring F, ring G, ring H and ring I independently represent one of C6-C60 aromatic rings and C5-C60 heteroaromatic rings, at least one of the ring E and the ring F is a naphthalene ring, and at least one of the ring G and the ring H is a naphthalene ring; w1, W2 and W3 are respectively and independently selected from a single bond, O, CO, SO2, S, NR1, CR2R3 or SiR4R5; and m1, m2 and m3 are respectively and independently 0 or 1. After the compound is prepared and applied to the organic electroluminescent device, the device has good performance of high color purity and high luminous efficiency, meanwhile, low-efficiency roll-off of the electroluminescent device is achieved, and the service life of the device is extremely long.
Owner:TSINGHUA UNIVERSITY

Epoxy resin composition

To provide an epoxy resin composition that has low volume resistivity and exhibits suitable conductivity when formed as a coating film, and that makes it possible to form a coating film having excellent solder wettability and solder erosion resistance.SOLUTION: An epoxy resin composition contains the following components (A) to (D): (A) one or more epoxy resins selected from the group consisting of triphenylmethane-type epoxy resins, naphthalene-type epoxy resins, and phenol novolac-type epoxy resins; (B) one or more epoxy resins selected from the group consisting of polyether-modified epoxy resins, urethane-modified epoxy resins, mesogen-modified epoxy resins having an -O-CH2CH(OH)CH2-O- skeleton in the molecule thereof, bisphenol-type epoxy resins, and dicyclopentadiene-type epoxy resins; (C) an imidazole-based compound and / or a phenol-based compound; and (D) one or more conductive powders selected from among silver-coated copper powders, silver-based powders, nickel-based powders, conductive carbon powders, copper-based powders, and gold-based powders.SELECTED DRAWING: None
Owner:SAKATA INX

High-toughness high-temperature-resistant ceramic material and preparation method thereof

ActiveCN120483698ACarbide siliconSide chain
The invention relates to the technical field of ceramics, and discloses a high-toughness high-temperature-resistant ceramic material and a preparation method thereof.The high-toughness high-temperature-resistant ceramic material comprises, by weight, 100 parts of quartz powder, 15-32 parts of potassium feldspar, 3-6 parts of boric acid, 0.8-2 parts of modified polysiloxane and the like. And the side chain of the modified polysiloxane contains a large amount of carboxyl, and forms interfacial interaction with the surfaces of the quartz and the potassium feldspar, so that the effect of a dispersing agent is achieved, and the mechanical strength of the calcined ceramic material is favorably improved. Modified polysiloxane contains a naphthalene ring structure with high carbon content, after high-temperature calcination, polysiloxane is taken as a silicon source, naphthalene rings are carbonized, high-temperature pyrolysis is carried out, a large number of silicon carbide reinforced phases are more easily formed, the silicon carbide reinforced phases are uniformly dispersed in a quartz ceramic matrix, the mechanical strength and toughness of the ceramic material are remarkably improved, the high-temperature resistance is excellent, and the modified polysiloxane has good application prospects in heat-resistant ceramic lampshades, heat-resistant ceramic lampshades, heat-resistant ceramic lampshades and heat-resistant ceramic lampshades. The heat-resistant ceramic base has good practical application.
Owner:CHAOZHOU YIFENG CERAMICS CO LTD

Heat dissipation type anticorrosive paint and preparation method thereof

The invention discloses a heat dissipation type anti-corrosion coating and a preparation method thereof, and belongs to the technical field of anti-corrosion coatings. The heat dissipation type anticorrosive paint comprises a component A and a component B, wherein the component A comprises the following components in parts by mass: 100 parts of heat-conducting water-borne epoxy resin, 4-6 parts of graphene, 0.3-0.5 part of an antioxidant, 0.2-0.4 part of a defoaming agent, 0.2-0.4 part of a flatting agent and 10 parts of first deionized water; the component B comprises the following components in parts by mass: 10-20 parts of a curing agent, 40-60 parts of a toughening agent, 4-6 parts of functionalized boron nitride microspheres and 30-50 parts of second deionized water; the heat-conducting water-borne epoxy resin is 1, 5-naphthalene diphenol modified water-borne epoxy resin; the curing agent is an aromatic amine curing agent; the toughening agent is obtained by carrying out copolymerization on acrylamide, N-(4-aminophenyl) acrylamide, 1, 3, 5-triacryloyl-s-triazine and 3-dimethylamino allyl phosphoric acid; the functionalized boron nitride microspheres are boron nitride microspheres modified by 4-aminobenzoic acid.
Owner:QINGDAO AUTO RADIATOR

Large-current-carrying-capacity flexible power cable

The invention discloses a large-current-carrying-capacity flexible power cable, which belongs to the technical field of cable preparation, is used for solving the technical problem that the flame retardant property and the mechanical property of the power cable need to be further improved in the prior art, and specifically comprises a cable core, a wrapping layer, an insulating layer and a sheath layer which are sequentially arranged from inside to outside. The preparation method comprises the following steps: preparing alkoxy silane containing a benzocyclobutene group, preparing flame-retardant particles by using a sol-gel method, preparing modified polyurethane by using modified polysiloxane and 2, 5-furandimethanol as soft segments, naphthalene diisocyanate as a hard segment and trimethylolpropane as a chain extender, and preparing the flame-retardant flame-retardant polyurethane. The linear low-density polyethylene, the MAH-g-PE, the modified polyurethane, the flame-retardant particles and the auxiliary additive are melted and extruded outside the wire core to form the insulating layer, so that the power cable is obtained, the flame-retardant property of the power cable is effectively improved, and the mechanical property and the current-carrying stability of the power cable are also improved.
Owner:华远高科电缆有限公司

Freeze-thaw-resistant sulfate composite modifier and application thereof in water-stable base

The invention relates to the technical field of building material modification, in particular to an anti-freeze thawing-sulfate composite modifier and application thereof in a water-stable base layer. In road engineering, a water-stable base layer often faces the problems of freeze-thaw cycle and sulfate erosion damage. The key point of the technical scheme of the invention is as follows: on the basis of the mass of cement, a composite modifier is composed of the following components in percentage by mass: 2%-5% of sodium sulfate, 0.02%-0.05% of sodium gluconate, 0.4%-0.6% of polypropylene fiber, 0.1%-0.2% of steel fiber, 1%-3% of butadiene styrene rubber emulsion, 0.05%-0.5% of sodium carboxymethyl cellulose, 0.05%-0.1% of triethanolamine, 0.1%-0.5% of naphthalene water reducer, 0.005%-0.02% of air entraining agent, 8%-10% of silica fume and the like. The composite modifier is mainly used for the water-stabilized base, can effectively improve the freeze-thaw resistance and sulfate erosion resistance of the water-stabilized base, and prolongs the service life of a road.
Owner:CHINA ROAD & BRIDGE

Preparation method and application of low-cost 1, 4-naphthalene diphenol and polyaryletherketone homopolymer thereof

The invention provides a preparation method and application of low-cost 1, 4-naphthalene diphenol and a polyaryletherketone homopolymer of the low-cost 1, 4-naphthalene diphenol. The method comprises the following steps: mixing 1, 4-naphthoquinone, a polar solvent and a catalyst to form a mixture; feeding the mixture into a micro-channel tubular reactor, and introducing hydrogen to carry out continuous catalytic hydrogenation reduction reaction; separating the catalyst to obtain a reaction solution containing 1, 4-naphthalene diphenol; adding a non-polar solvent into the reaction liquid for crystallization; and separating to obtain a 1, 4-naphthalene diphenol product. The product obtained by adopting the preparation method and the preparation system provided by the invention is high in purity, good in color, strong in stability and suitable for industrial production, a high-quality raw material is provided for subsequent synthesis of the 1, 4-naphthalene structure polyaryletherketone homopolymer, and smooth proceeding of a polymerization reaction and stability of product quality are ensured.
Owner:SHANGHAI GÜVEX ADVANCED COMPOSITES TECHNOLOGY CO LTD

Perovskite precursor solution, perovskite solar cell and preparation method

The invention discloses a perovskite precursor solution containing substituted aromatic ring group sulfonic acid, which comprises a perovskite material, an additive and an organic solvent, the additive is aromatic ring group sulfonic acid with a substituent group or a salt thereof, the aromatic ring is a benzene ring, a naphthalene ring or a pyrene ring, and the substituent group is one or more of H, halogen, C1-C4 alkenyl and C1-C4 alkyl. Polycyclic aromatic hydrocarbon (such as benzene, naphthalene and pyrene) is used as a framework, one sulfonic acid group instead of a sulfonyl group is introduced, and uncoordinated type defect passivation is realized through bonding with Pb < 2 + >; meanwhile, the electron push-pull characteristic of the substituent group is utilized, the Lewis acid-base amphoteric property is exerted, passivation of various types of defects is achieved, anchoring and passivation of multiple sites are achieved, the defects of the perovskite active layer can be remarkably reduced, non-radiative recombination can be reduced, and the performance and stability of the prepared perovskite solar cell in the large-scale preparation process are further improved.
Owner:ZJU HANGZHOU GLOBAL SCI & TECH INNOVATION CENT

Sulfate-erosion-resistant metakaolin-slag-based geopolymer concrete and preparation method thereof

The invention discloses sulfate-erosion-resistant metakaolin-slag-based geopolymer concrete, belongs to the technical field of concrete, and aims to solve the problems that the corrosion resistance of traditional silicate concrete is ineffective and the adaptability of conventional alkali-activated concrete is insufficient in a special environment. The concrete comprises the following components in parts by weight: 60-90 parts of a cementing material, 120-170 parts of aggregate, 15-30 parts of a composite activator, 2-8 parts of a function regulator and the like, the cementing material is prepared from nano TiO2 / KH-550 composite modified metakaolin, slag and silica fume-coal gangue powder-HAP composite powder; the aggregate comprises modified limestone macadam (soaked and dried by a sodium dihydrogen phosphate solution) and river sand; the composite exciting agent comprises water glass, sodium hydroxide, sodium pyrophosphate, propylene glycol and the like; the function regulator comprises superfine fly ash, a naphthalene water reducer, HPMC (Hydroxy Propyl Methyl Cellulose) and boric acid. Through the synergistic effect of the components, the sulfate corrosion resistance, the mechanical property and the environmental adaptation performance of the concrete are improved, and the concrete is suitable for engineering construction under the service environment of high-concentration sulfate and the like.
Owner:绵竹市铸诚混凝土有限公司

Water-soluble polyimide as well as preparation method and application thereof

PendingCN120137166ACell electrodesSecondary cellsPtru catalystNaphthalenetetracarboxylic dianhydride
The invention belongs to the technical field of high polymer materials and lithium batteries, and particularly relates to water-soluble polyimide as well as a preparation method and application thereof. The water-soluble polyimide is prepared from the following raw materials: diamine containing sulfonic groups, diamine containing carboxyl, naphthalene-1, 4, 5, 8-tetracarboxylic dianhydride, a catalyst, an alkaline neutralizer and a solvent. The invention also relates to a negative electrode slurry containing the water-soluble polyimide, a negative electrode plate and a lithium battery. The water-soluble polyimide disclosed by the invention has excellent electrochemical performance of naphthalene-1, 4, 5, 8-tetracarboxylic dianhydride and excellent ion exchange capacity and proton conductivity of sulfonic acid groups at the same time, so that a battery prepared from a negative pole piece prepared from the polyimide water-based binder can show excellent charge-discharge performance and cycling stability.
Owner:SHANGHAI JIAOTONG UNIV

Near-infrared dichroic dye, liquid crystal composition and application thereof

The invention discloses a near-infrared dichroic dye, a liquid crystal composition and application of the near-infrared dichroic dye and the liquid crystal composition. The structural general formula of the disclosed dichroic dye is as shown in formula I in the specification. According to the invention, a hydrogenated quinoline ring, a hydrogenated benzopyran ring and a hydrogenated naphthalene ring are introduced into a molecular skeleton, so that the novel near-infrared dichroic dye with high light stability, high solubility, high order parameter and high light modulation capability is obtained. Compared with the near-infrared dichroic dye disclosed in the prior art, the absorption band is further subjected to red shift, and the light modulation capability is remarkably improved; ordering parameters are greatly improved, and the application bottleneck is solved.
Owner:XIAN MODERN CHEM RES INST

High-grinding-efficiency color paste, preparation method thereof and dispersed ink

The invention provides high-grinding-efficiency color paste, a preparation method thereof and dispersed ink, and belongs to the technical field of dispersed ink, and the high-grinding-efficiency color paste comprises the following components in percentage by weight: 15%-30% of disperse dye toner, 15%-25% of a dispersing agent, 5%-15% of resin ammonium salt, 10%-20% of a dissolution promoting mixture, 0.5%-2% of a wetting agent and the balance of water; the dispersing agent comprises a hyperbranched polymer and a sodium naphthalene sulfonate improved polymer; the hyperbranched polymer takes a benzene ring as a center, hydrophobic groups and hydrophilic groups on a branched chain are randomly distributed, the hydrophilic groups of the branched chain comprise carboxylate and sulfonate, and the hydrophobic groups of the branched chain comprise alkane, ester and aryl. According to the invention, the hyperbranched polymer and the sodium naphthalene sulfonate improved polymer are mixed with the dispersing agent, so that the problem of abrupt change of ink viscosity can be avoided when the content of ink toner is relatively high, thereby obtaining the color paste with strong dispersion and high stability, and further obtaining the dispersed ink with good stability.
Owner:SERUDAN (HUBEI) IMAGE PIGMENT CO LTD

Modified naphthalene water reducer and preparation method thereof

The invention discloses a modified naphthalene water reducer and a preparation method thereof, relates to the field of preparation of modified naphthalene water reducers, and is used for preparing the modified naphthalene water reducer. The modified naphthalene water reducer is a product formed by condensing a sulfonated product and a lignin product; s101, preparation of a sulfonated product; s102, preparing a lignin product; and S103, dispersing and drying the modified water reducing agent of the beta-naphthalene sulfonic acid lignin formaldehyde condensate sodium by using special equipment to form the modified naphthalene water reducing agent. Compared with a traditional naphthalene water reducer, the modified naphthalene water reducer has the advantages that the process is simple, the water reducing effect on concrete is high, the air content of the modified naphthalene water reducer is smaller than that of the traditional naphthalene water reducer, the strength and durability of the concrete are improved, the concrete has better impermeability and freezing resistance, and bleeding and sedimentation are reduced; and the compressive strength is far higher than that of the traditional naphthalene water reducer.
Owner:LAIWU ZHAOXIN NEW MATERIAL CO LTD

Compound microbial agent formula for corn seedling stage

InactiveCN120058437ABacteriaMicroorganism based processesSodium acetateAgricultural policy
The invention discloses a compound microbial agent formula for a corn seedling stage, and relates to the technical field of agricultural microorganisms. The microbial agent comprises bacillus subtilis and bacillus mucilaginosus, auxin hormone sodium naphthalene acetate, chelated zinc and a pH regulator potassium fulvate are added, and humic acid powder is used as a carrier. The dry powder preparation with the particle size being smaller than or equal to 200 meshes and the suspension rate being larger than or equal to 90% is prepared through a specific fermentation technology and a bacterial liquid mixed adsorption and spray drying technology. Field trials show that the composition can increase the emergence rate of corn from 85% to 90%-93%, increase the dry weight of the root system by 30%, and reduce the incidence rate of white seedling disease by 70% or above. Microbe, chemistry and agronomy principles are fused, and the corn production problem in the arid region is systematically solved; chemical fertilizer dependence is reduced, degraded soil is restored, and green agricultural policy guidance is met; the average cost per mu is less than 100 yuan, and the method is suitable for large-scale planting and precise irrigation systems.
Owner:海宁

Root growth promoting agent suitable for rooting of sliced ginger, ginger slicing seedling raising method and application

The invention belongs to the technical field of crop seedling raising methods, and particularly discloses a root growth promoting agent suitable for rooting of sliced ginger, a ginger slicing seedling raising method and application. According to the method disclosed by the invention, before ginger planting, a root growth promoting agent is used, the root growth promoting agent comprises a 200-fold diluted solution of naphthalene B sodium nitrate, a 500-fold diluted solution of a microbial agent polyglutamic acid, a 500-fold diluted solution of plant rooting powder and a 10000-fold diluted solution of mepiquat chloride, and the four components realize synergistic interaction, so that the comprehensive indexes of the aboveground part of the ginger cut-block seedling, the plant growth amount and the seedling root system are optimal. According to the method, intensive early seedling raising is achieved through dicing, the ginger field planting time is shortened by more than 50 days, and crop rotation is facilitated; seedlings are neat and consistent, the root activity is high, the field survival rate and mechanical operation of the seedlings are improved, and the labor efficiency is improved. The technical method is simple, the production cost is low, the seedling rate is high, and direct economic benefits are embodied in production.
Owner:INST OF ECONOMIC CROP HUBEI ACADEMY OF AGRI SCI

Organic compound, application thereof and organic electroluminescent device containing organic compound

The invention relates to an organic compound, application of the compound and an organic electroluminescent device containing the compound. The organic compound disclosed by the invention has a structure as shown in a formula (1), wherein a ring A1 and a ring A2 respectively and independently represent one of C5-C20 aromatic rings and C4-C20 heteroaromatic rings; ring A, ring B, ring C and ring I independently represent a benzene ring, a naphthalene ring or an anthracene ring; a ring D, a ring E, a ring F and a ring G independently represent one of C5-C20 aromatic rings and C4-C20 heteroaromatic rings respectively; ring Z and ring W each independently represent a benzene ring, a naphthalene ring or an anthracene ring; x and Y are respectively and independently selected from a single bond, O, CO, SO2, S, NR1, CR2R3 or SiR4R5; and when X is a single bond, Y is selected from CO, SO2, S, NR1, CR2R3 or SiR4R5. The organic electroluminescent device adopting the compound disclosed by the invention has good performance of high color purity and high luminous efficiency, also realizes low-efficiency roll-off, and has extremely long device service life. # imgabs0 #
Owner:TSINGHUA UNIVERSITY

Red light and infrared light-emitting compounds based on boron-nitrogen fused ring and application of red light and infrared light-emitting compounds

The invention provides a red light and infrared light-emitting compound based on a boron-nitrogen fused ring and application thereof. The invention provides a boron-nitrogen polycyclic aromatic hydrocarbon material of a fused naphthalene ring, and a specific strong electron withdrawing group is introduced to a boron atom para-position. Compared with a compound disclosed in the prior art, the compound provided by the invention introduces a strong electron withdrawing group to a boron atom para-position of boron-nitrogen polycyclic aromatic hydrocarbon of a fused naphthalene ring, so that the emission spectrum of the material can be subjected to significant red shift (red shift from a yellow light band to a red light band and even an infrared band), and red light and even infrared light emission with high luminous efficiency and a narrow band can be realized. An electroluminescent device prepared from the compound provided by the invention shows relatively high luminescent color purity and relatively excellent luminous efficiency, and can meet the requirements of current enterprise production on high-performance luminescent materials.
Owner:THE FIRST AFFILIATED HOSPITAL OF XIAMEN UNIV +1

Waste residue soil solidified baking-free blank brick

The invention relates to the technical field of residue soil baking-free brick building materials, and discloses a waste residue soil solidified baking-free blank brick which is prepared from the following components in parts by weight: 1500-1600 parts of waste residue soil, 20-30 parts of polypropylene fiber, 150-170 parts of a curing agent, 3-8 parts of a powder enhancer, 0.5-3 parts of a hyperbranched naphthalene water reducer and 180-190 parts of water. The preparation method of the hyperbranched naphthalene water reducer comprises the following steps: by taking naphthalene as a raw material, sulfonating with concentrated sulfuric acid, and carrying out condensation reaction with branched naphthol phosphate and formaldehyde, thereby obtaining the hyperbranched naphthalene water reducer. The waste residue soil solidified baking-free blank brick has excellent compressive strength, and can reach the performance standard of tailing bricks with the strength grade of MU15 in JC / T422-2007 Non-Sintered Rubbish Tailing Brick.
Owner:HEFEI WUTE NEW BUILDING MATERIALS CO LTD

Strong-acid-and-alkali-resistant plastic material for fume hood surface decoration and preparation method of strong-acid-and-alkali-resistant plastic material

PendingCN121975264Areduce wettingreduce adhesionPolymer sciencePlastic materials
The invention discloses a strong acid and alkali resistant plastic material for fume hood surface decoration and a preparation method of the strong acid and alkali resistant plastic material, belongs to the technical field of plastic material processing, and aims at solving the technical problem that in the prior art, the acid and alkali resistance and the bending modulus of a plastic material for fume hood surface decoration need to be further improved. The preparation method specifically comprises the following steps: stirring amino-modified fluorosilicone resin, paraformaldehyde and 1, 4-dioxane in a reaction kettle, dropwise adding an anacardol solution, heating the reaction kettle to 85-95 DEG C, carrying out heat preservation reaction for 6-8 hours, and carrying out post-treatment to obtain the anacardol-based benzoxazine resin. Perfluoro-modified polysiloxane benzoxazine is prepared, naphthalene-containing epoxy resin and imidazole-modified silicon carbide microspheres are compounded, in-situ catalysis synergistic curing is carried out by using filler interface imidazole, a compact organic-inorganic hybrid interpenetrating network is constructed, and the strong acid and alkali corrosion resistance and bending modulus of the material are remarkably improved.
Owner:ANHUI YIGUANG LAB EQUIP MFG CO LTD

Preparation method of alpha-difluoroseleno methyl ketone derivative

The invention provides a preparation method of an alpha-difluoroselenomethyl ketone derivative, which is a method for preparing the alpha-difluoroselenomethyl ketone derivative by using 2, 2-difluoroolefin and dialkyl diselenide in the presence of iodosobenzene diacetate. The preparation method specifically comprises the following steps: dissolving 2, 2-difluoroolefin and a dialkyl diselenide compound in an organic solvent, uniformly mixing, adding iodobenzene diacetate, and stirring and reacting at a certain temperature in an air atmosphere to obtain the product alpha-difluoro (seleno) methyl ketone derivative. The alpha-difluoroselenomethyl ketone derivative can be mildly and efficiently obtained by only adopting iodobenzene diacetate without necessary catalysts, alkali, persulfide and persulfate compounds in the prior art. Wherein R1 and R2 are aliphatic hydrocarbon, substituted and unsubstituted benzene, substituted and unsubstituted naphthalene or other aromatic groups.
Owner:JIANGSU OCEAN UNIV

High-performance machine tool guide rail oil and preparation method thereof

The invention relates to the technical field of guide rail oil, and particularly discloses high-performance machine tool guide rail oil and a preparation method thereof. The high-performance machine tool guide rail oil comprises the following components in parts by weight: 90-110 parts of base oil, 5-8 parts of composite microcapsules, 0.5-3 parts of polyisobutene, 5-10 parts of alkyl naphthalene and 2-5 parts of a surfactant, according to the composite microcapsule, modified chitosan serves as a capsule wall, white oil and organic intercalated montmorillonite serve as core materials, and meanwhile a layer of silicon dioxide is attached to the surface of the capsule wall. The high-performance machine tool guide rail oil prepared by the invention has the advantages of high lubrication and friction resistance.
Owner:SHANDONG NORTH ZITE SPECIAL OIL

Cellulose acetate based 1, 8-naphthalimide fluorescent probe for detecting Hg < 2 + > as well as preparation method and application of cellulose acetate based 1, 8-naphthalimide fluorescent probe

The invention discloses a cellulose acetate based 1, 8-naphthalimide fluorescent probe for detecting Hg < 2 + > as well as a preparation method and application of the cellulose acetate based 1, 8-naphthalimide fluorescent probe. The preparation method comprises the following steps: by taking 4-bromo-1, 8-naphthalic anhydride as a raw material, carrying out condensation reaction on the 4-bromo-1, 8-naphthalic anhydride and 4-aminobutyric acid to prepare 4-(4-bromo-1, 8-naphthalic diimide) butyric acid (BNA-B); the BNA-B and piperazine are subjected to a substitution reaction, and a compound PNA-B is prepared; the PNA-B and 4-(bromomethyl) pyridine hydrochloride are subjected to a substitution reaction, and a compound PNA-B is prepared; and the PNA-B and cellulose acetate (CA) are subjected to an esterification reaction, such that the cellulose acetate-based 1, 8-naphthalimide fluorescent probe PNA-CA is prepared. The compound can specifically recognize Hg < 2 + >, after Hg < 2 + > is added into a PNA-CA acetonitrile / PBS buffer solution under 365nm ultraviolet irradiation, the fluorescence color of the solution is changed from colorless to yellow, the response time is 20s, the detection limit reaches 9.3 * 10 <-8 > M, and the probe has a good application prospect.
Owner:NANJING FORESTRY UNIV

Synthesis of new polymers for the manufacture of solid hydrogen transfer agents

This disclosure refers to a method for the synthesis of polymers with weight average molecular weights greater than 50,000 g / mol, chemically inert, with a minimum decomposition temperature of 425° C., and a main chain composed only of carbon-carbon bonds, which contain structures of the type of naphthalene, phenanthrene, anthracene, pyrene, carbazole or any other where two or more aromatic rings of six carbon atoms of the benzene-type are fused, which may or may not contain aromatic heterocycles. In addition, the polymers obtained from the present disclosure may or may not contain fluorine atoms in their structure. The synthesis described here is carried out by means of polycondensation between a polycyclic aromatic compound and a compound with a carbonyl group in its structure in a strong acid medium.
Owner:INST MEXICANO DEL GASOLINEEO

Organic material and organic optoelectronic device using the same

An organic material comprises a structure such as Formula I:The structure contains polycyclic fused rings, diene groups, and naphthalene rings, which can effectively enhance the thermal stability of the material. The invention also provides an organic optoelectronic device comprising a first electrode, an active layer, and a second electrode. The active layer comprises the aforementioned organic material. This organic optoelectronic device exhibits great dark current density, detectivity, and photoelectric conversion efficiency in the near-infrared wavelength range, as well as superior thermal stability.
Owner:RAYNERGY TEK INC

A method for synthesizing 2,6-naphthalene dicarboxylic acid

The application discloses a synthesis method of 2,6-naphthalene dicarboxylic acid, which comprises the following steps: S1. Compound a is dissolved in an organic solvent, triethylamine, alcohol and a catalyst are added, and an oxidizing gas is introduced, so as to obtain compound b through reaction; and S2. Compound b is mixed with alcohol and water, an alkali is added, and an acid is added after reaction, so as to obtain a compound of formula I. The application uses a high-activity catalyst, is simple in operation, and has relatively mild reaction conditions. The addition of polyethylene glycol can further greatly improve the product yield, and the application has a wide application prospect.
Owner:SHANGHAI YUJUN BIOTECHNOLOGY DEV CO LTD

Resin composition for colored coating on optical fiber, optical fiber, and optical fiber ribbon

A resin composition for colored coating on an optical fiber contains a photopolymerizable compound, a photopolymerization initiator, a photosensitizer, and an organic pigment, in which the photosensitizer includes at least one selected from the group consisting of an anthracene-based photosensitizer and a naphthalene-based photosensitizer, and a content of the photosensitizer is 0.01 parts by mass or more and less than 3.00 parts by mass with respect to 100 parts by mass of the total amount of the photopolymerizable compound.
Owner:SUMITOMO ELECTRIC INDUSTRIES LTD

Method for identifying fish meat from different sources by combining electronic tongue with HS-SPME-GC / MS

The invention relates to the technical field of fish meat source identification, in particular to a method for identifying different sources of fish meat by combining an electronic tongue with HS-SPME-GC / MS. The method comprises the following steps: obtaining a fish meat sample; performing taste detection on the fish meat sample by adopting an electronic tongue to obtain a taste detection result; after the fish meat sample is extracted, volatile odor substance detection is conducted through chromatography and mass spectrometry, volatile odor substances comprise one or more of dimethyl phthalate, nonanal, n-hexyl alcohol, naphthalene, octanol, 1-octylene-3-alcohol and alpha-platylene, and a volatile odor substance detection result is obtained; and identifying the fish meat source in combination with the taste detection result and the volatile odor substance detection result. According to the method, an electronic tongue technology and a headspace solid phase microextraction-gas chromatography-mass spectrometry technology are combined for use, and the taste and the smell are detected at the same time so as to distinguish fish meat from different sources, so that a more reliable quality evaluation system can be established, accurate traceability and grading are supported, and different user requirements are met.
Owner:TONGWEI AGRI DEV CO LTD

Decarburization gasification slag green mortar concrete blender and preparation method thereof

InactiveCN120573978ACelluloseCarbonization
The invention relates to a decarburization gasification slag green mortar concrete blender and a preparation method thereof. The invention relates to a bacillus pasteurii water-soluble fertilizer which comprises microbial mineralized bacteria liquid of bacillus pasteurii, microcapsules (shells of which are composed of gelatin calcium alginate composite layers and ZrO2 nano-coatings) for encapsulating sodium gluconate, steel slag powder (the particle size is less than 50 microns) subjected to carbon dioxide carbonization treatment, plasma modified powder of which the surface is grafted with a silane coupling agent, and rosin soap, wherein the shells of the microcapsules are composed of gelatin calcium alginate composite layers and ZrO2 nano-coatings; the steel slag powder is subjected to carbon dioxide carbonization treatment; a polycarboxylic acid water reducing agent, a naphthalene water reducing agent and the like. The preparation method comprises the following steps: carrying out mixed culture on the decarburized gasification slag and a microbial mineralized bacterial solution, carrying out plasma treatment on the HPMC, xanthan gum and steel slag powder, mixing the cellulose ether and the starch ether under the assistance of ultrasonic waves, packaging the retarder by a spray drying method, and mixing the modified steel slag powder and the microcapsules according to a specific mass ratio. According to the invention, a microorganism-microcapsule-steel slag synergistic system is combined with a plasma modification technology, so that high performance and greenization of the concrete blender are realized, and the strength, durability and other properties of concrete are improved.
Owner:INNER MONGOLIA LANBO DINGSHENG ENVIRONMENTAL PROTECTION MATERIAL CO LTD

Janus structure photo-thermal evaporation film for seawater desalination and preparation method of Janus structure photo-thermal evaporation film

The invention belongs to the technical field of photo-thermal water evaporation films, and discloses a Janus-structure photo-thermal evaporation film for seawater desalination and a preparation method of the Janus-structure photo-thermal evaporation film. The Janus film is obtained by treating a composite film solution through a non-solvent induced phase separation method and a nano laser etching technology. The preparation method comprises the following steps: dissolving phthalazinone polyarylethersulfone ketone in N-methyl pyrrolidone, cooperating with nano molybdenum disulfide to prepare an upper layer of the photo-thermal super-hydrophobic water evaporation double-layer film, and dissolving quaternized phthalazinone polyarylethersulfone ketone in N-methyl pyrrolidone to prepare a hydrophilic lower layer of the water evaporation double-layer film. According to the prepared water evaporation thin film material, the super-hydrophobic upper surface and the hydrophilic lower layer are achieved through surface laser etching, meanwhile, the water evaporation thin film material has excellent photo-thermal performance in a full-spectrum area of sunlight, and the water evaporation rate is excellent under irradiation of 0.8 sunlight intensity and a 60-degree wide angle.
Owner:DALIAN UNIV OF TECH

Fiber phthalazinone polyarylether thermoplastic prepreg tape and preparation method thereof

PendingCN120365606AThermoplasticFiber
The invention provides a preparation method of a fiber phthalazinone polyarylether thermoplastic prepreg tape, which comprises the following steps: S1, weighing a certain amount of phthalazinone polyarylether resin, adding a solvent, uniformly stirring to prepare a resin solution, and respectively adding the resin solution into a primary impregnation tank and a secondary impregnation tank for later use, the concentration of the solution in the primary impregnation tank is smaller than that of the solution in the secondary impregnation tank; s2, carrying out primary treatment on the fiber after yarn spreading in the primary impregnation tank configured in the step S1, and then carrying out secondary treatment in the secondary impregnation tank configured in the step S1; and S3, introducing the fibers subjected to secondary dipping treatment into a hot drying tunnel for drying, and carrying out shaping, rolling and winding to obtain the poly (phthalazinone ether) thermoplastic prepreg tape. According to the invention, a secondary impregnation mode of firstly impregnating with the low-concentration resin solution and then impregnating with the high-concentration resin solution is adopted, so that the problems of low resin content, large content fluctuation and non-uniform resin distribution of the prepreg tape prepared by a traditional solution impregnation method are solved.
Owner:DALIAN UNIV OF TECH