29 results about "Phenylphosphonic acid" patented technology

The invention belongs to the technical field of inorganic chemical material preparation, and discloses a high-selectivity crystallization and impurity migration inhibition method of high-purity magnesium hydroxide. The method comprises the following steps: a phenylphosphonic acid surface modifier is introduced in the initial stage of crystallization, molecules of the phenylphosphonic acid surface modifier selectively occupy high-activity Mg < 2 + > sites of a magnesium hydroxide crystal face through bidentate coordination, and a molecular-level interface barrier with steric hindrance and electrostatic repulsion effects is formed, so that a Ca < 2 + > migration path is specifically blocked, and Mg < 2 + > crystallization is not influenced. The preparation method of the high-purity magnesium hydroxide is high in selectivity, high in efficiency, low in cost and environmentally friendly, the interface adsorption behavior of calcium ions is accurately intervened in the initial stage of crystallization through a molecular level surface engineering means, the technical bottleneck that impurity migration and lattice doping are difficult to control in a traditional process is fundamentally solved, and the preparation method is suitable for industrial production. And a brand new technical path is provided for green manufacturing of high-performance inorganic functional materials.

The invention relates to the technical field of aluminum material processing oil, and particularly discloses an environment-friendly residue-free aluminum material processing oil composition and a preparation method thereof. The environment-friendly residue-free aluminum product processing oil composition is prepared from the following raw materials in parts by weight: 60 to 100 parts of polyglycol ether, 2 to 17 parts of synthetic ester, 0.5 to 2.5 parts of antioxidant, 0.1 to 0.5 part of metal corrosion inhibitor and 0.1 to 3 parts of tackifier. The synthetic ester comprises star-shaped complex ester, and the star-shaped complex ester comprises the following raw materials: pentaerythritol, oleic acid, phenylphosphonic acid and boric acid. The environment-friendly residue-free aluminum product processing oil composition disclosed by the invention can be used for forming and processing aluminum products, can effectively inhibit oxidation caused by factors such as high-temperature friction heat and metal catalysis in a cyclic heating process under heavy-load and high-temperature working conditions, can realize almost no residue after aluminum product post-treatment at 540 DEG C, ensures that the surfaces of the aluminum products are bright and free of discoloration, and has the advantages of simple process, low cost and the like. And the subsequent cleaning procedure is omitted.

The invention discloses a pomegranate-shaped core-shell structure tin pyrophosphate negative electrode material as well as a preparation method and application thereof, and belongs to the technical field of electrochemical energy storage materials. The preparation method comprises the following steps: mixing tetravalent tin salt and a phosphonic acid organic ligand, and carrying out hydrothermal reaction to obtain a tin-based metal organic framework precursor; the phosphonic acid organic ligand is selected from one or two of phenylphosphonic acid or (pyridine-2-yl methyl) phosphonic acid; and carrying out heat treatment on the tin-based metal organic framework precursor at 550-700 DEG C to obtain the pomegranate-shaped core-shell structure tin pyrophosphate negative electrode material. The tetravalent tin salt and the specific phosphonic acid ligand are used for constructing the precursor, and the Kirkendall effect in the pyrolysis process is utilized to form a unique core-shell structure, so that the negative electrode material shows excellent cycling stability under high current density when being used for the potassium ion battery or the sodium ion battery.

The invention provides a carbon-supported ruthenium-doped iron-based phosphide electrocatalyst as well as a preparation method and application thereof, and belongs to the field of electrocatalytic materials. The method comprises the following steps: mixing ruthenium trichloride, ferric trichloride and phenylphosphonic acid, and carrying out a coordination reaction to obtain an MOFs precursor; performing ultrasonic washing and purification on the obtained MOFs precursor to obtain a pure product; and placing the obtained pure product in a tubular furnace for calcination and carbonization to obtain the carbon-supported ruthenium-doped iron-based phosphide electrocatalyst. The invention also provides the carbon-supported ruthenium-doped iron-based phosphide electrocatalyst obtained by the preparation method. The carbon-supported ruthenium-doped iron-based phosphide provided by the invention has excellent electro-catalytic performance, and the overpotential for realizing electro-catalytic reduction hydrogen evolution is relatively low.

The application belongs to the technical field of flame-retardant polymers, and particularly relates to an intrinsic heat-conducting flame-retardant recycled epoxy resin and a preparation method thereof. The preparation method comprises the following steps: (1) diethanolamine is reacted with 9,10-dihydro-9-oxa-10-phosphaphenanthrene 10-oxide (DOPO) to obtain an intermediate A; (2) the intermediate A is subjected to polycondensation reaction with phenylphosphonic acid to obtain a terminal phosphonic acid group polyester flame retardant (PEF); (3) 4,4'-diphenol is epoxidized to obtain a liquid crystal epoxy precursor LEP; and (4) the PEF, the LEP and 3,3'-dithiodipropionic acid are mixed and heated and cured to prepare the epoxy resin. The prepared epoxy resin has intrinsic heat conduction, flame retardation and high efficiency recycling, and is a highly potential polymer material.

This invention discloses a nitrogen-phosphorus flame retardant, a composition and composite material containing the flame retardant, its preparation method, and its application. The flame retardant has a structure as shown in formula (I), where n is an integer from 100 to 150. The preparation method of the flame retardant includes: synthesizing bis(4-formylphenyl) phenylphosphonate and bis(4-aminophenyl)phenylphosphonate, reacting the two to generate a Schiff base, and then reacting it with 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide to obtain the nitrogen-phosphorus flame retardant PCNPO. This flame retardant, when compounded with melamine cyanurate (MCA), can be used to prepare flame-retardant nylon 6 composite materials. This invention, through the synergistic effect of PCNPO and MCA, enables nylon 6 to achieve the UL94 V-0 flame retardant standard at a low addition level, while maintaining excellent mechanical properties and processing stability, and exhibiting strong charring ability, simple process, and environmental friendliness. (I)

The invention relates to the technical field of flame-retardant materials, in particular to flame-retardant polyurethane soft foam based on phenylphosphonic acid intercalated kaolin as well as a preparation method and application of the flame-retardant polyurethane soft foam. Preparing potassium acetate intercalated kaolin; preparing phenylphosphonic acid intercalated kaolin; the preparation method comprises the following steps: adding phenylphosphonic acid intercalated kaolin into a chitosan aqueous solution, immersing polyurethane foam, continuously and slowly stirring, taking out and drying after immersing, then immersing in a glutaraldehyde ethanol solution, stirring, taking out and drying to obtain the flame-retardant polyurethane soft foam. By adopting the steps, the prepared chitosan-coated phenylphosphonic acid intercalated kaolin coating has low heat release rate and smoke release rate, and also has excellent flame retardant property; the chitosan-coated phenylphosphonic acid intercalated kaolin coating and the flame-retardant polyurethane soft foam can significantly reduce the combustible gas release and smoke generation rate under a thermal exposure condition.

Organometallic precursor solutions containing one or more phosphonate, such as methylphosphonic acid, tert-butylphosphonic acid, diethoxyalyllphosphonate, benzylphosphonic acid, and phenylphosphonic acid, are described. Corresponding methods for forming radiation patternable coatings as well as methods for forming a pattern using a solventless developing process are also described. The incorporation of a phosphonate into an organometallic photoresist composition, such as an organotin photoresist composition, is described as a way to increase stability of organometallic precursor solutions, to improve the homogeneity of organometallic photoresist films, and / or to improve the patterning performance of organometallic photoresist coatings.

The invention provides a phenyl phosphonic acid bis (o-isocyano-phenol) ester ligand which is prepared by the following steps: in an inert gas atmosphere, mixing a compound benzoxazole with anhydrous tetrahydrofuran, cooling to-95 to-65 DEG C, adding an n-butyllithium solution dissolved in an organic solvent, stirring at-95 to-65 DEG C for 0.5-4 hours, adding diphenylphosphoryl chloride, stirring at room temperature for 8-10 hours, filtering, washing, and drying to obtain the phenyl phosphonic acid bis (o-isocyano-phenol) ester ligand. Carrying out post-treatment on the obtained reaction liquid to obtain a phenyl phosphonic acid bis (o-isocyano phenol) ester ligand; compared with the most common organic dye photosensitizer, the copper-based photosensitizer prepared from the phenyl phosphonic acid bis (o-isocyano-phenol) ester ligand overcomes the defect that the catalytic activity of the organic dye photosensitizer is rapidly reduced under long-term illumination, and in addition, the organic dye photosensitizer is easy to generate an aggregation-induced quenching effect; the photosensitizer disclosed by the invention does not generate an aggregation-induced quenching effect; compared with an iridium complex photosensitizer which is commonly used at present, the cuprous photosensitizer provided by the invention is more environment-friendly.

This invention relates to a rare-earth Ce-O-P core-shell structure-coated TPU flame-retardant material and its preparation method, belonging to the field of polymer combustion-supporting materials technology. It aims to address the problems of poor water resistance, easy precipitation of flame retardants, and decreased flame retardant rating and mechanical properties after boiling in water in existing flame-retardant TPUs. The material of this invention is composed of TPU, a rare-earth CeOP core-shell structure halogen-free flame retardant, a compatibilizer and dispersant, mineral oil, and an antioxidant; wherein the halogen-free flame retardant includes a rare-earth cerium phenylphosphonate compound and a phosphorus-nitrogen flame retardant. This invention obtains the rare-earth CeOP core-shell structure flame retardant through stepwise synthesis, and then blends and granulates it with TPU and other materials. After boiling in water at 90-120℃ for 168 hours, the material shows no precipitation, maintains the UL94 V0 rating (0.8mm), retains a tensile strength of >90%, and a breakage elongation of >100%.

The present invention relates to new mixtures of phenylphosphonic acid diaryl esters which exhibit good flame retardant properties and a high plasticizing effect in thermoplastic molding compositions.

The application discloses a perovskite solar cell based on a cross-linking interface passivation layer and relates to the technical field of photovoltaic cell materials. The perovskite solar cell comprises, from bottom to top, a transparent conductive substrate, an electron transport layer, a perovskite light absorption layer, a cross-linking interface passivation layer, a hole transport layer and a metal electrode. The cross-linking interface passivation layer is a 4-[10-(4-{1,2,2-trifluorovinyl)oxy}phenyl)-10H-phenoxazine-2-yl]phenylphosphonic acid material. The cross-linking interface passivation layer can significantly improve the photovoltaic performance and stability, and the cross-linking network greatly enhances the intrinsic stability of the device. In a double 85 aging test at 85 DEG C / 85%RH, the time required for the device efficiency to decay to 80% of the initial value can be more than 1000 hours.

The present invention relates to new flame-retardant thermoplastic molding compositions containing specific phenylphosphonic acid diaryl esters which are characterized by good flame retardant properties and high plasticizing effect.

This invention discloses a precursor and its preparation method, belonging to the field of lithium-ion battery cathode material technology; the molecular formula of the organic-inorganic hybrid manganese-iron precursor is Mn. x Fe y [C6H5PO3]·nH2O, where x+y=1, and 0.2≤x≤0.9, 0<n≤2. The organic-inorganic hybrid manganese-iron precursor prepared in this invention achieves a highly uniform atomic-level distribution of the two metal elements by uniformly complexing manganese and iron ions at the molecular level using phenylphosphonic acid ligands. This solves the phase separation and structural instability problems caused by elemental segregation in lithium manganese iron phosphate materials, thus laying a uniform and controllable compositional and structural foundation for the subsequent synthesis of high-performance cathode materials.

This invention discloses a method for preparing a ferromagnetic single-atom piezoelectric catalyst, the piezoelectric catalyst itself, and its application. The preparation method includes the following steps: weighing ammonium molybdate tetrahydrate and thioacetamide, dissolving them in ultrapure water, and stirring until a colorless and transparent solution is obtained; then adding nickel acetate tetrahydrate, continuing stirring, transferring the mixed solution to a high-pressure reactor, washing after the reaction, and drying to obtain the reaction product; spreading the reaction product evenly in a quartz boat, and finally calcining the reaction product at high temperature under a nitrogen atmosphere, and cooling to successfully prepare the Ni-MoS2 ferromagnetic single-atom piezoelectric catalyst. The piezoelectric catalyst prepared by this invention has good piezoelectric catalytic performance and can achieve high organophosphorus degradation efficiency in the treatment of phenylphosphonic acid wastewater.

Organometallic precursor solutions containing one or more phosphonate, such as methylphosphonic acid, tert-butylphosphonic acid, diethoxyalyllphosphonate, benzylphosphonic acid, and phenylphosphonic acid, are described. Corresponding methods for forming radiation patternable coatings as well as methods for forming a pattern using a solventless developing process are also described. The incorporation of a phosphonate into an organometallic photoresist composition, such as an organotin photoresist composition, is described as a way to increase stability of organometallic precursor solutions, to improve the homogeneity of organometallic photoresist films, and / or to improve the patterning performance of organometallic photoresist coatings.

The present invention relates to new flame-retardant thermoplastic molding compositions containing specific phenylphosphonic acid dialkyl esters which are characterized by good flame retardant properties and high cold flexibility.

The invention provides a preparation method of a rapid photocuring cellulose-based macromolecular photoinitiator. According to the method, 2, 4, 6-trimethylbenzoyl phenylphosphonic acid is used as an initial molecule, an acylating chlorination intermediate with high reactivity is generated through oxalyl chloride activation, then the acylating chlorination intermediate and a cellulose main chain are subjected to a bonding reaction, and effective grafting of a photosensitive structure to a natural polymer skeleton is achieved. Then, esterification regulators such as acetyl bromide and the like are introduced, so that the arrangement and density of the grafting groups on the surface of the cellulose can be further improved, and the esterified cellulose photoinitiator with a uniform functionalization degree is obtained. The obtained initiating material shows good solubility and system adaptability in various acrylate monomers, and can rapidly initiate chain polymerization under ultraviolet irradiation, so that a formula system is converted into a curing network with a bonding function within an extremely short time. The acrylate material initiated by the photoinitiator can be cured within seconds to minutes under a common 365 nm light source. Compared with a small molecular initiator, the macromolecular structure effectively reduces the migration risk, avoids complex operation steps, has the advantages of clean raw materials, high safety, capability of being matched with various monomer systems and the like, and remarkably widens the utilization range of cellulose in the fields of photocuring adhesives and functional resin materials.

The invention relates to the technical field of polyester catalytic synthesis, in particular to a defect-modified MOF-doped phosphorus catalyst D-MIL-125-M / P. After terephthalic acid is dissolved with N, N-dimethylformamide, methanol and tetrabutyl titanate are added for a reaction, the obtained defect-modified MOF precursor D-MIL-125 is ultrasonically dispersed in methanol, and the defect-modified MOF-doped phosphorus catalyst D-MIL-125-M / P. The preparation method comprises the following steps: dissolving the defect-modified MOF-doped phosphorus catalyst D-MIL-125-M / P. The defect-modified MOF-doped phosphorus catalyst D-MIL-125-M / P. And adding a second metal salt, carrying out a stirring reaction, carrying out activation, adding the activated product and phenylphosphonic acid into a mixed alcohol solution, carrying out a reaction, and carrying out washing and vacuum drying so as to obtain the defect-modified MOF doped phosphorus catalyst D-MIL-125-M / P. The defect-type MOF precursor D-MIL-125 is prepared, a second metal site is introduced to modify the defect, then organic phosphine is used for modification to form a stable active site, and the obtained catalyst product is free of heavy metal toxicity, and is high in catalytic efficiency, short in condensation polymerization time and few in side reaction when being used for a polycondensation reaction of polyester.

The invention relates to a new class of phenylphosphonic acid esters combining good flame-retardant properties with a high plasticizing effect and ease of applicability.

The invention relates to a composition comprising ground natural calcium carbonate being surface treated with phenylphosphonic acid and / or one or more salt(s) thereof, a process for manufacturing the same, its use as a nucleating agent in the production of a polymer formulation, a method for producing the polymer formulation, a nucleating agent comprising the composition, as well as a polymer formulation comprising the composition, and its use.

This invention relates to the fields of inorganic chemical engineering and textile auxiliaries, and discloses a surface modification process for textile-grade sodium metaantimonate to improve dispersibility. The process includes: adding sodium aluminate to a sodium metaantimonate suspension and stirring until dissolved to create an alkaline liquid environment in which tetrahydroxyaluminate ions are stably present; adding an aqueous solution of phenylphosphonic acid dropwise to this alkaline system for acid-base neutralization, controlling the hydrolysis of aluminum species using the acid release rate, and inducing in-situ generated aluminum hydroxyl species to coordinate with phenylphosphonate ions. This invention constructs an antimony-oxygen-aluminum-oxygen-phosphorus chemical hybrid coating layer without a phase interface on the surface of sodium metaantimonate through a specific acid-base coupling synchronous mineralization mechanism. This kinetically blocks the self-condensation aging path of aluminum species, improves the interfacial bonding force and thermal stability of the modified layer under high temperature and high shear conditions, and effectively solves the problems of thermal desorption and secondary agglomeration of sodium metaantimonate during melt spinning.

The invention relates to the field of pipes, and discloses an impact-resistant and high-temperature-resistant PE pipe and a preparation method thereof.The PE pipe is prepared from high-density polyethylene resin, modified halloysite nanotubes, modified nano silicon dioxide and auxiliaries; the modified halloysite nanotube is prepared by precipitating and polymerizing phosphonitrilic chloride trimer and an amination intermediate on the surface of the halloysite nanotube intercalated with phenylphosphonic acid; the amination intermediate is prepared from p-phenylenediamine and triethyl phosphate through a reaction; the modified nano silicon dioxide is prepared by grafting a modified silane coupling agent and nano silicon dioxide, wherein the modified silane coupling agent is prepared by substitution of 3-chloropropyltrimethoxysilicon and a phosphorus-containing modified intermediate; 1, 2-bis (4-aminophenoxy) ethane reacts with 3, 5-di-tert-butyl-4-hydroxybenzaldehyde, and then the reaction product and DOPO are subjected to an addition reaction to prepare the phosphorus-containing modified intermediate, and the prepared PE pipe has the advantages of high impact strength, good tensile property, excellent flame retardation and excellent high temperature aging resistance.

The invention provides a ferrocenyl phosphorus-containing MOF flame retardant, flame-retardant epoxy resin and preparation methods of the ferrocenyl phosphorus-containing MOF flame retardant and the flame-retardant epoxy resin. The ferrocenyl phosphorus-containing MOF flame retardant has a two-dimensional layered structure, and is synthesized by taking cobalt salt, ferrocenedicarboxylic acid and phenylphosphonic acid as raw materials and adopting a one-step solvothermal method. The process for preparing the ferrocenyl phosphorus-containing MOF flame retardant is simple, conditions are controllable, and the obtained flame retardant has high thermal stability and flame retardance; the prepared ferrocenyl phosphorus-containing MOF flame retardant is added into an epoxy resin matrix, and the flame-retardant epoxy resin can be formed after curing. The tensile strength and impact strength of the composite material can be remarkably improved under the condition of low addition amount of the MOF flame retardant, the heat release rate peak value can be reduced by 55.9%, the total smoke release amount can be reduced by 42.5%, synergistic improvement of flame retardance, smoke suppression and mechanical properties is achieved, the problem that a traditional flame retardant is difficult to consider mechanical properties at the same time is solved, and wide industrial application prospects are achieved.

The invention discloses phenyl phosphonate and derivatives thereof, a polylactic acid composition and a preparation method and application thereof. The preparation method of the phenyl phosphonate and the derivative thereof comprises the following steps: dropwise adding a second solution containing rare earth inorganic salt and non-rare earth metal inorganic salt into a first solution containing phenyl phosphonic acid and the derivative thereof at a speed of 10-30mL / min, and then reacting at 40-80 DEG C to obtain the phenyl phosphonate and the derivative thereof, wherein rare earth elements in the rare earth inorganic salt are selected from one or more of lanthanum, cerium and praseodymium, and non-rare earth metal elements in the non-rare earth metal inorganic salt are selected from one or more of copper and zinc. The phenyl phosphonate and the derivative thereof obtained by the method can effectively improve the heat resistance of polylactic resin.

The invention relates to the technical field of high polymer material processing, and particularly discloses high-definition window film dark heat insulation glue and a preparation method thereof. The high-definition window film dark heat insulation glue comprises the following raw materials in parts by weight: 90-110 parts of a solvent type acrylic pressure-sensitive adhesive, 4-7 parts of a pigment, 10-30 parts of a metal oxide filler, 70-90 parts of toluene and 30-50 parts of ethyl acetate, and the raw material of the solvent type acrylic pressure-sensitive adhesive comprises a phenyl phosphonate acrylate functional monomer. The high-definition window film dark-color heat-insulating glue can be used for preparing a sunshade heat-insulating layer of a window film, the pigment and the metal oxide filler are uniformly and stably dispersed in the pressure-sensitive adhesive and are not easy to separate out, the appearance defects are few in the coating process, and the prepared window film has good flatness and optical performance and can be widely applied to the field of high-definition window films. The requirements of the market on high-definition and uniform-appearance window films can be met.

The invention discloses a preparation method of MIEC, a preparation method of MIEC, a preparation method of FeF3, a preparation method of a MIEC composite material, FeF3 and MIEC powder. The preparation method of the MIEC comprises the following steps: dissolving a lithium salt, a magnesium salt and a zirconium salt in absolute ethyl alcohol to obtain a solution I; dissolving phenylphosphonic acid in ultrapure water to obtain a solution II; mixing and fully stirring the solution I and the solution II to obtain a first mixed solution; adding conductive carbon into the first mixed solution, and performing ultrasonic uniform mixing to obtain a second mixed solution; and placing the second mixed solution in a closed container, keeping vacuum for a preset time, placing the mixed solution in a freeze-drying machine for freeze-drying, and collecting powder, namely the MIEC. The preparation method provided by the invention is simple in process, controllable in cost and easy for large-scale preparation, the ionic conductivity / electronic conductivity of the obtained MIEC, FeF3 and MIEC composite materials is improved, the proportion of FeF3 in the composite positive electrode is remarkably increased, and the electrochemical performance of the lithium ion battery is greatly improved.

[Problem] It is an object of the present invention to provide a dual-cure organopolysiloxane composition that is capable of both photocuring and curing by exposure to moisture, that exhibits excellent curability and long-term storage stability at room temperature or ambient storage conditions, and that is preferably applied in a solventless form. [Solution] A dual-cure organopolysiloxane composition, (A) an organopolysiloxane having an average of one or more alkenyl groups per molecule and an average of one or more hydrolyzable groups per molecule; (B) an organopolysiloxane having an average of two or more photoreactive groups per molecule; (C) a condensation reaction catalyst; (D) The following photoinitiators (d1) to (d3): (d1) 2,4,6-trimethylbenzoylphenylphosphinate, (d2) bis(2,4,6-trimethylbenzoyl)-phenylphosphine oxide, and (d3) 2,2-dimethoxy-1,2-diphenylethan-1-one, (E) a silane having an average of two or more hydrolyzable groups per molecule, and optionally (F) a radical scavenger; A dual cure organopolysiloxane composition comprising:

The invention belongs to the technical field of perovskite solar cells, and provides a thin film, a preparation method of the thin film and application of the thin film in a trans-structure perovskite solar cell. The film provided by the invention is prepared from the following raw material components: poly [4-(9H-carbazole-9-yl) butyl phosphonic acid] and an additive, the additive comprises [4-(3, 6-dimethoxy-9H-carbazole-9-yl) phenyl] phosphonic acid, and the mass ratio of poly [4-(9H-carbazole-9-yl) butyl phosphonic acid] to the additive is 2: (1-2). The thin film provided by the invention can be further used for preparing a trans-structure perovskite solar cell, can be used as a modification layer to effectively modify a large-area hole transport layer, and is suitable for preparing a large-scale, large-size, high-conversion-efficiency and high-stability trans-structure perovskite solar cell.