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2028 results about "Trifluoromethyl" patented technology

Trifluoromethyl is a functional group that has the formula -CF₃. The naming of is group is derived from the methyl group (which has the formula -CH₃), by replacing each hydrogen atom by a fluorine atom. Some common examples are trifluoromethane H–CF₃, 1,1,1-trifluoroethane H₃C–CF₃, and hexafluoroacetone F₃C–CO–CF₃. Compounds with this group are a subclass of the organofluorines.

Polymorphs of and synthetic process for an AZA-tetracyclic oxazepine inhibitor of KRAS-g12d

PCT designated stage expiredWO2025111586A1Organic active ingredientsGroup 1/11 element organic compoundsMethylanilinePyrazine
Provided herein are polymorphs and crystalline forms of 2-fluoro-5-((5S,5aS,6S,9R)-1-fluoro-12-(((2R,7aS)-2-fluorotetrahydro-1H-pyrrolizin-7a(5H)-yl)methoxy)-5-methyl-5a,6,7,8,9,10-hexahydro-5H-4-oxa-3,10a,11,13,14-pentaaza-6,9-methanonaphtho[1,8-ab]heptalen-2-yl)-3-methyl-4-(trifluoromethyl)aniline (Compound of Formula (I)), pharmaceutical compositions thereof, and methods of their use, for example, in the treatment of cancer. Also provided herein are synthetic processes for the manufacture of a compound of Formula (I) (i.e., 2-fluoro-5-((5S,5aS,6S,9R)-1-fluoro-12-(((2R,7aS)-2-fluorotetrahydro-1H-pyrrolizin-7a(5H)-yl)methoxy)-5-methyl-5a,6,7,8,9,10-hexahydro-5H-4-oxa-3,10a,11,13,14-pentaaza-6,9-methanonaphtho[1,8-ab]heptalen-2-yl)-3-methyl-4-(trifluoromethyl)aniline). Also provided are compounds useful in its synthesis (e.g., those of Formulae (A), (B), (By), and (H)) and synthetic processes directed thereto.
Owner:GENENTECH INC

Process for the preparation of (3,3,3-trifluoro-2-oxo-propoxy)phenyl derivatives

PCT designated stage expiredWO2025088176A1BiocideOrganic chemistryEthoxidineAryl
The present invention relates to novel (3,3-dimethyl-2-oxo-butoxy)phenyl derivatives and (2- aryl-2-oxo-ethoxy]phenyl derivatives and to their application in a process for the preparation of (3,3,3-trifluoro-2-oxo-propoxy)phenyl derivatives and their further transformation into [(2- trifluoromethyl-1,3-dioxolan-2-yl)methoxy]phenyl derivatives and (2-ethoxy-3,3,3-trifluoro- prop-1-enoxy)phenyl derivatives suitable for use, e.g., as active ingredients, which have microbiocidal activity, in particular, fungicidal activity.
Owner:SYNGENTA CROP PROTECITON AG

Antagonists of the muscarinic acetylcholine receptor m4

Disclosed herein are (6-(4-(trifluoromethyl)pyridin-3-yl)pyridazin-3-yl)octahydrocyclopenta[c]pyrrol-5-amine, (6-(4-(difluoromethyl)pyridin-3-yl)pyridazin-3-yl)octahydrocyclopenta[c]pyrrol-5-amine, and (6-(2-(trifluoromethyl)pyridin-3-yl)pyridazin-3-yl)octahydrocyclopenta[c]pyrrol-5-amine compounds, useful as antagonists of the muscarinic acetylcholine receptor M4 (mAChR M4). Also disclosed herein are methods of making the compounds, pharmaceutical compositions comprising the compounds, and methods of treating disorders using the compounds and compositions.
Owner:VANDERBILT UNIV

Electrolyte additive, electrolyte and battery

The invention relates to an electrolyte additive, an electrolyte and a battery. The electrolyte additive comprises a first additive and lithium trifluoromethanesulfinate, the structural formula of the first additive is as shown in a formula (I): # imgabs0 # formula (I), and in the electrolyte additive, the mass ratio of the first additive to the lithium trifluoromethanesulfinate is 0.02-10. When the electrolyte additive is added into the electrolyte of the battery, the rate capability and the high-temperature performance of the battery can be effectively improved.
Owner:GUANGZHOU TINCI MATERIALS TECH

Mixed refrigerant for replacing R290 as well as preparation method and application of mixed refrigerant

The invention belongs to the technical field of refrigerants, and provides a mixed refrigerant for replacing R290 and a preparation method and application thereof, the mixed refrigerant comprises a first component, a second component and a third component; the first component is trans-1, 2-difluoroethylene, the second component is 2, 3, 3, 3-tetrafluoropropene, and the third component is trifluoromethyl methyl ether; compared with R290 refrigerants in the prior art, the mixed refrigerant has the advantages that flammable and explosive components do not exist, and high-risk combustible gas clusters cannot be formed due to density layering after leakage, so that the mixed refrigerant has high safety performance, and the safety level can be not lower than A2L; the mixed refrigerant has the environment-friendly characteristic of low GWP, the GWP is smaller than or equal to 150, and the environment-friendly requirement is met; the thermophysical property and the refrigeration and / or heating cycle performance of the mixed refrigerant are similar to or better than those of R290; the mixed refrigerant can be used for directly replacing an R290 refrigerant.
Owner:SHANGHAI MINGKETU NEW MATERIAL TECH CO LTD

Environment-friendly hydrophobic ink and preparation method thereof

The invention relates to environment-friendly hydrophobic ink and a preparation method thereof, and belongs to the technical field of water-based ink. A copolymerization modifier capable of being combined in a water-based polyacrylate emulsion in an initiation polymerization mode in the stage of preparing the modified water-based polyacrylate emulsion is prepared, and an o-hydroxy aromatic ketone structure in the copolymerization modifier can endow water-based ink with lasting ultraviolet absorption performance; the trifluoromethyl structure can reduce the surface energy of the water-based ink, and the benzimidazole ring structure can form stable coordinate bonds with metal ions, so that the bonding performance of the water-based ink and a metal substrate is enhanced; when the copolymerization modifier is used for modifying the water-based polyacrylate emulsion, the long-term performance, the hydrophobic and oil-resistant performance and the adhesion performance on the surface of a metal base material of the finished water-based ink can be effectively improved.
Owner:FOSHAN SHUNDE LECONG SHENG CHANG PRINTING INK CO LTD

Preparation method of 4-bromo-2-(4-chlorphenyl)-5-trifluoromethyl-1H-pyrrole-3-formonitrile

The invention discloses a preparation method of 4-bromo-2-(4-chlorphenyl)-5-trifluoromethyl-1H-pyrrole-3-formonitrile, and belongs to the technical field of organic synthesis.The preparation method comprises the steps of acylation reaction, cyclization reaction, bromination reaction and recovery. The preparation method disclosed by the invention is high in safety, the prepared 4-bromo-2-(4-chlorphenyl)-5-trifluoromethyl-1H-pyrrole-3-formonitrile is high in purity and yield, the equipment investment is small, the bromination reaction speed is high, the acid-binding agent can be recycled, the drying time during recycling is short, and the water content in the recycled acid-binding agent is low.
Owner:LANZHOU ZHAOFENG CHEMICAL TECHNOLOGY CO LTD

A specific palmitoyl transferase inhibitor and uses thereof

The application discloses a specific palmitoyl transferase inhibitor and application thereof, and an active ingredient of the palmitoyl transferase inhibitor is 4-(3-(2-(trifluoromethyl)-9H-thioxanthene-9-ylidene)propyl)-1-piperazine ethanol or a salt thereof. Current palmitoylation inhibitors, 2-bromohexadecanoic acid (2-BP), cerulenin and tunicamycin can all inhibit protein palmitoylation in cells, but all are not selective. And the existing palmitoylation inhibitors are similar to endogenous fatty acids, and inevitably affect lipid metabolism in the body, which limits the clinical application. The application discloses, for the first time, the application of 4-(3-(2-(trifluoromethyl)-9H-thioxanthene-9-ylidene)propyl)-1-piperazine ethanol as a specific palmitoyl transferase inhibitor, and the palmitoyl transferase inhibitor is better in specificity and reversible in inhibition.
Owner:SUZHOU UNIV

Synthesis method of 2-bromomethyl-5-trifluoromethyl furan

The invention discloses a synthesis method of 2-bromomethyl-5-trifluoromethyl furan, which comprises the following steps: S1, carrying out reaction on acetoacetate and halogenated trifluoroacetone under the action of an alkaline substance and a catalyst to generate a 2-acetyl-5, 5, 5-trifluoro-4-oxovalerate crude product; s2, carrying out a cyclization reaction on the 2-acetyl-5, 5, 5-trifluoro-4-oxovalerate crude product, so as to obtain a 2-methyl-5-(trifluoromethyl) furan-3-formate crude product, and carrying out a cyclization reaction on the 2-acetyl-5, 5, 5-trifluoro-4-oxovalerate crude product to obtain a 2-methyl-5-(trifluoromethyl) furan-3-formate crude product; s3, adding an alkaline substance into the crude product, carrying out hydrolysis, and adding acid to adjust the pH value after the hydrolysis is completed, so as to obtain 2-methyl-5-(trifluoromethyl) furan-3-formic acid; s4, the 2-methyl-5-(trifluoromethyl) furan-3-formic acid is subjected to a heating decarboxylation reaction, and 2-methyl-5-(trifluoromethyl) furan is obtained; and S5, carrying out a bromination reaction on the 2-methyl-5-(trifluoromethyl) furan and a bromination reagent to obtain a final product 2-bromomethyl-5-(trifluoromethyl) furan. The raw materials used in the synthesis method are easy to obtain, use of control chemicals is not involved, and industrialization is easy to achieve.
Owner:SHANGHAI GAOZHUN PHARMA CO LTD

Method of treatment of symptoms of menopause

The present invention generally relates to novel pharmaceutical formulations containing 2-[3,5-Bis(trifluoromethyl)phenyl]-N-{4-(4-fluoro-2-methylphenyl)-6-[(7S,9aS)-7-(hydroxymethyl)hexahydropyrazino[2,1-c][1,4] oxazin-8(1H)-yl]-3-pyridinyl}-N,2-dimethylpropanamide, methods of preparation thereof and their use in medical therapy.
Owner:KANDY THERAPEUTICS LTD

Bismuth-rich metal organic framework antibacterial material and preparation method thereof

The invention discloses an antibacterial material rich in a bismuth metal organic framework and a preparation method thereof, the method comprises the following steps: adding an indole monomer and an alcohol monomer into a solvent, and then adding nitrosalicylaldehyde into the solvent to obtain a spiropyran compound; the preparation method comprises the following steps: adding humic acid into a binary solvent consisting of dioxane and butanol to obtain a mixed solution; the ratio of the mass of the humic acid to the volume of the binary solvent is (2-3): (20-40) g / ml; sequentially adding a bismuth source, 2-bromo-5-(trifluoromethyl) pyridine and 4-(trifluoromethyl) phenylboronic acid into the mixed solution to obtain a bismuth metal organic framework; and adding the spiropyran compound into the bismuth metal organic framework to obtain the antibacterial material rich in the bismuth metal organic framework. The antibacterial capability of the antibacterial material is improved.
Owner:NINGBO FOTILE KITCHEN WARE CO LTD

Preparation method of lithium trifluoromethanesulfinate

The invention discloses a preparation method of lithium trifluoromethanesulfinate, and belongs to the field of lithium ion battery materials. The preparation method of the lithium trifluoromethanesulfinate comprises the following steps: 1, mixing trifluoromethanesulfonyl chloride, lithium sulfite, lithium bicarbonate and a first solvent, and heating to react; 2, dissolving the concentrated crude product in a second solvent, and filtering and separating a lithium sulfate solid; and 3, concentrating the filtrate, adding a third solvent, uniformly stirring, filtering and separating the lithium chloride solid, and concentrating to obtain the lithium trifluoromethanesulfinate. According to the method for preparing the lithium trifluoromethanesulfinate, the yield can reach 94%, the operation is simple, byproducts are easy to separate, and the method is suitable for industrial production. In addition, the obtained by-product lithium sulfate can be used for preparing lithium sulfide, the by-product lithium chloride can be used for preparing solid electrolyte, and resource utilization is achieved.
Owner:SHANDONG TAIHE WATER TREATMENT TECH CO LTD

MLCC release film base film and preparation method thereof

InactiveCN120118366ACoatingsFiberPolymer science
The invention discloses an MLCC release film base film and a preparation method thereof, and relates to the technical field of release films, the MLCC release film base film comprises a core layer and a functional coating layer arranged on the outer surface of the core layer; the core layer is prepared from the following raw materials: PET (Polyethylene Terephthalate) resin, functional polyester containing triazolyl tetrafluorophenyl, a coupling agent, reinforced fibers, an antioxidant and a lubricant; the functional coating layer is prepared from the following components: hydroxyl-terminated hyperbranched polyester, isocyano ethyl methacrylate, vinyl trimethoxy silane, nano filler, 3, 3 '-diamino-4, 4'-difluorodiphenyl sulfone, 2, 2 '-bis (trifluoromethyl) diaminobiphenyl, a photoinitiator, a catalyst A and a diluent. The base film is low in surface roughness and warping degree, good in high temperature resistance, high in flatness and appropriate in stiffness.
Owner:扬州博恒新能源材料科技有限公司

Green preparation method of fluopyram intermediate 3-chloro-5-(trifluoromethyl)-2-ethylaminopyridine

The invention relates to a green preparation method of fluopyram intermediate 3-chloro-5-(trifluoromethyl)-2-ethylaminopyridine, which comprises the following steps: step 1, Ullmann reaction: coupling 3-chloro-2-methyl-5-trifluoromethylpyridine (C1) and N-bromomethyl phthalimide (C2) in the presence of a copper catalyst and potassium tert-butoxide to generate an intermediate (C3); and step 2, hydrolysis reaction: hydrolyzing the intermediate (C3) in the presence of hydrazine sulfate and an alkaline condition to generate the fluopyram intermediate 3-chloro-5-(trifluoromethyl)-2-ethylamino pyridine. The method has the advantages of short synthesis steps, easily available raw materials, no use of high-toxicity cyanogen compounds, low catalyst cost, difficult poisoning, recycling, simple post-treatment process, and less waste liquid generation, greatly reduces the production cost, improves the production safety, reduces the waste liquid discharge amount, and accords with the idea of green synthesis.
Owner:利民化学有限责任公司

Solid forms of a PARP7 inhibitor

The present invention relates to solid forms of the poly(ADP-ribose) polymerase 7 (PARP7) inhibitor 5-[[(2S)-1-(3-oxo-3-[4-[5-(trifluoromethyl)pyrimidin-2-yl]piperazin-1-yl]propoxy)propan-2-yl]amino]-4-(trifluoromethyl)-2,3-dihydropyridazin-3-one, and salts thereof, including methods of preparation thereof, where the inhibitor is useful in the treatment of cancer.
Owner:RIBON THERAPEUTICS INC

Imidazolium ionic liquid modified magnesium ion battery electrolyte as well as preparation method and application thereof

The invention discloses an imidazolium ionic liquid modified magnesium ion battery electrolyte and a preparation method and application thereof. The imidazolium ionic liquid modified magnesium ion battery electrolyte is obtained by fully dissolving [EOE-A-Im] [TFSI] ionic liquid in an APC electrolyte. Wherein [EOE-A-Im] [TFSI] is a 1-allyl-3-(2-ethoxyethyl)-1H-imidazole-3-onium bis (trifluoromethylsulfonyl) imine salt, and APC is a total phenyl complex. The imidazolium ionic liquid modified magnesium ion battery electrolyte disclosed by the invention is relatively wide in electrochemical window, excellent in compatibility with electrodes, high in magnesium deposition-dissolution efficiency, low in overpotential and good in cycling stability; and the preparation method of the imidazolium ionic liquid modified magnesium ion battery electrolyte is simple and environment-friendly, and accords with green industrial production.
Owner:CHONGQING UNIV

Sodium ferric pyrophosphate positive electrode diaphragm as well as dry preparation method and application thereof

The invention provides a sodium ferric pyrophosphate positive electrode diaphragm as well as a dry preparation method and application thereof. The dry preparation method comprises the following steps: dividing the conductive agent into a conductive agent A and a conductive agent B; mixing the conductive agent A with the ferric sodium pyrophosphate positive electrode material, and performing first stirring to obtain a first material; mixing a conductive agent B with sodium trifluoromethanesulfonate, and performing second stirring to obtain a second material; mixing the first material with the second material, and performing third stirring to obtain a third material; mixing the third material with a binder, and performing fourth stirring to obtain a fourth material; and the fourth material is subjected to fibrosis treatment and rolling in sequence to obtain the sodium ferric pyrophosphate positive electrode diaphragm. By designing the contents and proportions of the sodium ferric pyrophosphate positive electrode material, the conductive agent, the binder and the sodium trifluoromethanesulfonate and controlling the mixing method, sequence and steps, the sodium ferric pyrophosphate positive electrode diaphragm with high compaction density, high conductivity and excellent ion transmission channels is prepared.
Owner:ZHUHAI KECHUANG LITHIUM BATTERY TECH CO LTD

Perovskite precursor solution, perovskite solar cell and preparation method thereof

The invention discloses a perovskite precursor solution, a perovskite solar cell and a preparation method of the perovskite solar cell. The perovskite precursor solution provided by the invention contains a perovskite precursor solute, a perovskite precursor solvent and an additive, the perovskite precursor solute contains lead halide, and further contains at least one of tin halide, formamidine halide, methylamine halide, cesium halide, dimethylamine halide and guanidine halide; the perovskite precursor solvent contains at least one of N, N-dimethyl formamide, dimethyl sulfoxide, N-methyl pyrrolidone, 2-methoxyethanol, valerolactone and acetonitrile, and the perovskite precursor solvent contains at least one of N, N-dimethyl formamide, dimethyl sulfoxide, N-methyl pyrrolidone, 2-methoxyethanol, valerolactone and acetonitrile; the additive contains an organic salt of trifluoromethyl acid. The opening voltage loss is reduced, the filling factor and the photoelectric conversion efficiency of the battery are improved, the precipitation of lead iodide is reduced in the crystallization annealing process, the volatilization of organic cations is inhibited, the non-uniform crystallization is improved, and the stability of the battery is improved.
Owner:UNIV OF SCI & TECH OF CHINA

Eutectic gel electrolyte of lithium metal battery as well as preparation method and application of eutectic gel electrolyte

The invention discloses a lithium metal battery eutectic gel electrolyte and a preparation method and application thereof, and belongs to the field of solid electrolyte. The eutectic gel electrolyte is prepared by carrying out a photocuring reaction on a photocuring precursor solution containing a photoinitiator, and the photocuring precursor solution contains a bi-component liquid compound and a deep eutectic solvent; the two-component liquid compound comprises 4-acryloyl morpholine and a photocurable polyethylene glycol derivative; the deep eutectic solvent is formed from a liquid mixture comprising succinonitrile, lithium bis (trifluoromethylsulfonyl) imide and fluoroethylene carbonate. The eutectic gel electrolyte is composed of a deep eutectic solvent with functional groups such as cyano and sulfonyloxy, and a polymer electrolyte with functional groups such as ether oxygen and a unique skeleton structure. The advantages of high ionic conductivity, wide electrochemical window, high interface stability and the like can be endowed based on the interaction between functional groups and the space confinement effect of a polymer electrolyte skeleton structure.
Owner:XIAN UNIV OF TECH

Low-temperature-resistant working electrolyte for liquid capacitor and preparation method of low-temperature-resistant working electrolyte

The invention discloses a low-temperature-resistant working electrolyte for a liquid capacitor and a preparation method of the low-temperature-resistant working electrolyte, and relates to the technical field of electrolytes for capacitors. The low-temperature-resistant working electrolyte is prepared from the following raw materials: ethylene glycol, an auxiliary solvent, a solute, ammonium hypophosphite, a synergist, a stabilizer, 1-ethyl-3-methylimidazolium bis (trifluoromethylsulfonyl) imine, boron nitride nanosheets and 2, 2, 2-trifluoroethyl acrylate. According to the invention, while the auxiliary solvent with a specific proportion is added, the synergist capable of improving the conductivity, the cycle life, the low-temperature ion mobility and the low-temperature power density and the 2, 2, 2-trifluoroethyl acrylate capable of further improving the electrochemical performance stability at the low temperature are also introduced, so that the low-temperature electrochemical performance of the lithium ion battery is improved. And a specific preparation method capable of preventing agglomeration and improving the smoothness of an ion conduction path is combined. Therefore, the electrolyte is more excellent in chemical performance at low temperature and wider in application prospect.
Owner:SHANGHAI YONGMING ELECTRONIC CO LTD

Methyl- and trifluoromethyl-containing disubstituted sulfonamide selective BCL-2 inhibitor

Disclosed is a methyl- and trifluoromethyl-containing disubstituted sulfonamide selective BCL-2 inhibitor; specifically disclosed are a compound of formula I, a stereoisomer or pharmaceutically acceptable salt of same, a preparation method therefor, and a pharmaceutical composition comprising the compound. Also disclosed are uses of the compound and of the pharmaceutical composition comprising the compound in treating anti-apoptotic protein BCL-2-related diseases such as cancer.
Owner:CHIA TAI TIANQING PHARMA GRP CO LTD

Selective dry film for circuit board and preparation method of selective dry film

The invention relates to an selective dry film for a circuit board and a preparation method of the selective dry film. The selective dry film for the circuit board comprises the following components: acrylic resin, an active monomer, modified boron nitride, hyperbranched polyether, an auxiliary agent and a solvent, wherein the modified boron nitride is obtained by reacting a silane coupling agent, trifluoromethacrylic acid and glycidyl methacrylate with boron nitride. The hyperbranched polyether is a polymer of glycerol and glycidyl. Materials such as acrylic resin are adopted as main components and compounded with modified boron nitride, so that compatibility and stability among the components are improved, more active groups are introduced, a firmer cross-linked structure is obtained, the strength of the dry film is further improved, and improvement of properties such as adhesive force and precision is facilitated; and the method has important significance on development and popularization of selective dry film products.
Owner:GUANGDONG YANMO SOLUTION TECHNOLOGY CO LTD

Preparation method of trifluoromethyl sulfinate

The embodiment of the invention discloses a preparation method of trifluoromethyl sulfinate. The preparation method comprises the following steps: reacting a trifluoromethyl sulfinyl reagent with an amino compound containing hydroxyl to obtain a trifluoromethyl sulfinate intermediate; and reacting the trifluoromethyl sulfinate intermediate with alkali metal salt in an organic solvent to obtain the trifluoromethyl sulfinate. According to the embodiment of the invention, firstly, the trifluoromethyl sulfinyl reagent reacts with the amino compound containing the hydroxyl group to obtain the trifluoromethyl sulfinate intermediate, and then the trifluoromethyl sulfinate and the alkali metal salt react in the organic solvent, so that the high-purity trifluoromethyl sulfinate can be prepared with high yield under mild conditions. The yield and the purity of the target product are effectively improved, and meanwhile, the production condition requirement and the environmental pollution degree are reduced, so that large-scale production and application are facilitated.
Owner:SHANGHAI ROLECHEM CO LTD +1

Sodium-ion battery and nitrile-based electrolyte thereof

The invention relates to a sodium ion battery and a nitrile-based electrolyte thereof. The electrolyte comprises: a solvent formed by fluoroethylene carbonate and at least one selected from the group consisting of dinitrile, 3-methoxypropionitrile, isobutyronitrile, valeronitrile, ethylene glycol bis (propionitrile) ether and 4-cyano tetrahydropyran, wherein the volume fraction of fluoroethylene carbonate is 5-20%; and at least one sodium salt selected from the group consisting of sodium hexafluorophosphate, sodium trifluoromethanesulfonate, bis (trifluoromethylsulfonyl) imide sodium and bis (fluorosulfonyl) imide sodium, with a concentration of 2.0-4.0 mol L <-1 >. The electrolyte provided by the invention can simultaneously stabilize an interface between a positive electrode and a negative electrode, and has reasonable ionic conductivity and high electrochemical stability.
Owner:BEIJING INST OF TECH

Compound containing thiophene group, device and equipment

The invention relates to a compound containing a thiophene group, a device and equipment. In the structural formula of the compound, R1, R2, R3, R4, R5, R6, R7, R8, R9 and R10 are independently selected from hydrogen, halogen, cyano, trifluoromethyl, triphenylamine and derivatives thereof, methoxyl, aryl and derivatives thereof, cyanobiphenyl and naphthyl; the compound can be used for preparing a photovoltaic device and photovoltaic equipment and is used for improving the efficiency and stability of the photovoltaic device.
Owner:JIANGSU SHENGKAI NEW ENERGY TECH CO LTD +1

Bio-based fiber reinforced composite material and preparation method thereof

The invention discloses a bio-based fiber reinforced composite material and a preparation method thereof, and belongs to the technical field of bio-based fiber composite materials. The bio-based fiber reinforced composite material is prepared from the following raw materials in parts by weight: 60 to 80 parts of nylon 6, 10 to 20 parts of bio-based aramid fiber, 5 to 10 parts of modified carbon fiber, 2 to 6 parts of hyperbranched polyester modified zinc oxide and 1 to 3 parts of antioxidant, the bio-based aramid fiber is prepared by reacting 2, 5-furandicarbonyl chloride with two diamine monomers, and the two diamine monomers respectively contain trifluoromethyl and sulfuryl; the modified carbon fiber is obtained by grafting polyamidoamine on the surface of carbon fiber; the hyperbranched polyester terminal group of the hyperbranched polyester modified zinc oxide contains an epoxy group. The modified carbon fiber, the bio-based aramid fiber and the hyperbranched polyester modified zinc oxide are added into the nylon matrix, so that the composite material is endowed with good ultraviolet resistance, comprehensive mechanical properties and durability.
Owner:ANHUI TONGLI NEW MATERIALS

Preparation method of fluopyram

The invention discloses a fluopyram preparation method, which comprises: S1, carrying out a heating reaction on 2-vinyl-3-chloro-5-trifluoromethylpyridine, ammonia water, a catalyst and a solvent, carrying out reduced pressure distillation after the heating reaction to recover the solvent so as to obtain a residue, and adding dichloromethane and triethylamine to the residue so as to obtain a reaction liquid; and S2, dropwise adding o-trifluoromethyl benzoyl chloride into the reaction liquid in an ice bath, then removing the ice bath, stirring at the room temperature, adding water into the reaction liquid obtained in the step S1, extracting an organic layer, drying with anhydrous magnesium sulfate, recovering the solvent under reduced pressure, and performing vacuum drying to obtain the fluopyram. The method has the advantages of high reaction yield, high product purity, recyclable and reusable solvent, simple and mild production process, and suitableness for mass production.
Owner:JUNKAI (TIANJIN) CHEM CO LTD

Modified polyether-ether-ketone composite material and preparation method thereof

ActiveCN119875349ANitro compoundFiber
The invention discloses a modified polyether-ether-ketone composite material and a preparation method thereof, and belongs to the technical field of high polymer materials. The modified polyether-ether-ketone composite material comprises the following raw materials in parts by weight: 60-85 parts of a polyether-ether-ketone resin matrix; 5 to 15 parts of carbon fiber; 5 to 20 parts of modified nano silicon dioxide; 5 to 10 parts of hydroxyapatite; 0.5 to 2 parts of a coupling agent; 2 to 4 parts of compatilizer; the preparation method comprises the following steps: carrying out nucleophilic substitution reaction on p-hydroxyacetophenone and 2-chloro-5-nitro-trifluoromethyl benzene to obtain an intermediate 1; carrying out a benzene cyclization reaction on the intermediate 1 to obtain a trinitro compound; then under the action of hydrazine hydrate, reducing the fluorine-containing triamine monomer into a fluorine-containing triamine monomer; then, the fluorine-containing triamine monomer reacts with 4, 4 '-(hexafluoroisopropenyl) diphthalic anhydride to prepare a modified compatilizer; the modified polyether-ether-ketone composite material prepared by the invention has excellent tensile strength, corrosion resistance and wear resistance.
Owner:UNIV OF JINAN +1

Flame-retardant high-temperature-resistant fiber woven fabric and preparation process thereof

The invention relates to a flame-retardant high-temperature-resistant fiber woven fabric and a preparation process thereof, and belongs to the technical field of textiles. The preparation method comprises the following steps: grafting and crosslinking a self-made grafting monomer and polyvinyl chloride, and then weaving to obtain the modified polyvinyl chloride fiber fabric; a phosphate group in the monomer can promote surface carbonization to form a protective carbon layer, silicate generated by decomposition of a siloxy group at a high temperature is combined with the carbon layer to improve the strength and melt viscosity of the carbon layer, and the phosphate group and the siloxy group synergistically enhance the flame retardance and the molten drop resistance of the fabric; a cyclic phosphate group and a pyridine ring are connected to form a rigid structure with relatively high thermal stability, chain segment movement is limited, a plurality of siloxy groups in a monomer are crosslinked to form a crosslinked network, molecular chain segments are difficult to move, and the combination of the rigid group and the crosslinked network improves the high temperature resistance of the fabric and effectively improves the mechanical properties of the fabric; in addition, the positively charged quaternary ammonium salt structure in the monomer improves the antistatic performance of the fabric, and cooperates with trifluoromethyl to destroy the structural integrity of bacterial cells, so that the fabric achieves efficient bacteriostasis.
Owner:YANGZHOU ZHENGMAO GARMENT CO LTD