520 results about "Phytic acid" patented technology

The invention relates to the field of packaging materials, and discloses low-temperature heat-sealing water-based coated paper and a preparation method and application thereof.The water-based coated paper comprises a base paper layer and a water-based coating, and the water-based coating comprises water-based ethylene-acrylic acid copolymer emulsion, modified nano-silica, a coalescing agent and water; a cardanol derivative is introduced into the water-based ethylene-acrylic acid copolymer emulsion as a functional component; the cardanol derivative is prepared by reacting epoxidized cardanol with 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide and then grafting with acryloyl chloride. The preparation method comprises the following steps: reacting epoxidized cardanol with 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide; the modified nano silicon dioxide is prepared by mixing aminated nano silicon dioxide and chitosan and adding a cross-linking agent prepared by grafting phytic acid and ethylene glycol diglycidyl ether. The water-based coating paper prepared by the invention overcomes the defects that the existing BOPP film is not environment-friendly, and the conventional coating paper is high in heat sealing temperature and easy to stick; meanwhile, good mechanical properties, water resistance and flame retardance are achieved.

The invention belongs to the technical field of flame-retardant polyether polyol, and particularly relates to a preparation method and application of multi-element synergistic reaction type anti-dripping flame-retardant polyether polyol. The preparation method of the multi-element synergistic reaction type anti-dripping flame-retardant polyether polyol comprises the following steps: taking phosphorus-containing polyether polyol and a nitrogen-containing compound as composite initiators, and carrying out polymerization reaction on the phosphorus-containing polyether polyol and the nitrogen-containing compound and an epoxy compound under the self-catalysis action to obtain the reaction type anti-dripping flame-retardant polyether polyol. According to the preparation method of the multi-element synergistic reaction type anti-dripping flame-retardant polyether polyol provided by the invention, phosphorus, nitrogen and chlorine elements are embedded into the polyether polyol by constructing a ternary synergistic system, so that the problems of poor compatibility, migration and precipitation of an externally added flame-retardant system are solved; in the preparation process, low-cost bio-based phytic acid is adopted as a raw material, no catalyst needs to be introduced, the operation is simple, the prepared polyether polyol is used for preparing a waterborne polyurethane film, the flame-retardant characteristic of the material is improved, and meanwhile, the good anti-dripping characteristic is achieved.

The invention provides tartary buckwheat herbal baijiu and a preparation method thereof.The method aims at solving the problems that existing tartary buckwheat baijiu is lost in active ingredient, single in flavor and unstable in baijiu body, firstly, tartary buckwheat submicron powder, radix puerariae submicron powder and rhizoma polygonati submicron powder are put into Maotai-flavor base liquor together, and two-section type closed extraction is conducted at the normal temperature and then at the low temperature, adding a part of citric acid solution to adjust the pH at the initial stage of extraction; squeezing and filtering extract liquor, immediately adding bamboo leaf extract and phytic acid to carry out synergistic anti-oxidation treatment, and carrying out short-term aging; and finally, blending with the residual base wine. According to the preparation method disclosed by the invention, the retention rate of active ingredients such as tartary buckwheat flavone and the stability of the wine body are remarkably improved through staged extraction and dual antioxidant protection, the wine body is successfully endowed with coordinated baking fragrance, sauce fragrance and herbal flavor, and the taste is mellow and mild.

The invention relates to the field of coatings, and discloses a biomass-based oil-resistant coating and a preparation method thereof, the coating comprises an additive solution, a paraffin solution and gallic acid; the paraffin solution is obtained by dissolving paraffin in absolute ethyl alcohol; a preparation method of the additive solution comprises the following steps: mixing chitosan powder and an acetic acid aqueous solution to prepare a chitosan solution, ultrasonically dispersing functionalized montmorillonite in deionized water to prepare a suspension, then uniformly mixing the chitosan solution and the suspension, adding modified phytic acid prepared by grafting phytic acid and ethylene glycol diglycidyl ether, and stirring to react; the functional montmorillonite is prepared by modifying modified montmorillonite with titanium dioxide and zinc oxide, then activating the modified montmorillonite with 3-aminopropyltriethoxysilane and succinic anhydride, and then carrying out a ring-opening reaction with glycidyl neodecanoate. The coating prepared by the invention has high water resistance, the Kit oil-proof grade is kept at grade 12, and the oil-proof performance of the coating is greatly improved. Meanwhile, the antibacterial performance, the tensile index and the ultraviolet aging resistance are relatively high.

The invention discloses a multi-network anti-freezing hydrogel electrolyte, a preparation method thereof and application of the multi-network anti-freezing hydrogel electrolyte in an electrochemical device. The hydrogel is prepared by using polyvinyl alcohol (PVA) and polyacrylamide (PAM) to form a basic network skeleton, introducing phytic acid, ethylene glycol and lithium / zinc bimetal salt (Li2SO4 / ZnSO4), and carrying out thermal initiation polymerization and freeze thawing. The hydrogel prepared by the invention has a multiple physical cross-linked network formed by polymer molecular chain entanglement, hydrogen-bond interaction among functional groups and metal coordinate bonds constructed between phosphate groups and divalent metal ions, so that the hydrogel electrolyte has excellent mechanical properties. Due to introduction of ethylene glycol, formation of ice crystals is effectively inhibited, and the hydrogel is endowed with excellent anti-freezing performance; the high-concentration Li < + > and Zn < 2 + > ensure the high ionic conductivity. The supercapacitor assembled by using the hydrogel electrolyte shows relatively high specific capacitance and good capacitance retention rate under bending and freezing conditions, and has good electrochemical properties and safety performance.

The embodiment of the invention discloses a Yarrowia guilliermondii as well as a separation and screening method, an identification method and application of the Yarrowia guilliermondii. The preservation number of the Yarrowia guilliermondii is CGMCC (China General Microbiological Culture Collection Center) No.27603, and the preservation number of the Yarrowia guilliermondii is CGMCC No.27603. The Yarrowia guilliermondii disclosed by the embodiment of the invention has a very good prevention and control effect on postharvest diseases of fruits, and the prevention and control effect of the Yarrowia guilliermondii on the diseases can be enhanced by respectively adding auxiliary factors, namely calcium chloride, alginate oligosaccharide (AOS), phytic acid (PA) and metschhia yeast. Through identification, the antagonistic bacterium is a Yeyrozyma guilliermondii, and the antagonistic bacterium is a Yeyrozyma guilliermondii. The M.guilliermonii has a good control effect on gray mold, penicilliosis, black spot and aspergillus niger of strawberry, apple, pear and tomato fruits, can be rapidly colonized on fruit wounds, and can enhance the resistance-related enzyme activity of the fruits, occupy the wound space and induce the fruit resistance to reduce the morbidity of diseases.

The invention discloses an efficient anticorrosive coating and a preparation method thereof, and relates to the technical field of coatings. The high-efficiency anticorrosive paint is prepared from a crosslinked membrane modified phytic acid loaded aluminum MCM-41 mesoporous silica composite synergistic filler, a polyurethane / epoxy resin composite emulsion system, titanium dioxide, a BYK-190 dispersing agent, a BYK-021 defoaming agent, a BYK-358N flatting agent, a BYK-425 thickening agent, hydroxyethyl cellulose and deionized water. A cross-linked membrane modified phytic acid loaded aluminum MCM-41 mesoporous silica composite synergistic filler is uniformly dispersed and deeply embedded into a polyurethane / epoxy resin composite emulsion system, countless chemical anchor points are established between the filler and a base material, and the interface bonding property with a resin system is also enhanced, so that the adhesive force of the coating is greatly improved, and meanwhile, the coating has the advantages that the service life of the coating is prolonged, and the service life of the coating is prolonged. And an active and passive three-dimensional protection system formed by the two is used for remarkably improving the corrosion resistance of the coating in the action modes of intelligent response, active repair and physical barrier.

The invention relates to a preparation method of an insect-proof lyocell fiber, and belongs to a functional fiber preparation method in the chemical field. The invention provides a bio-based microcell barrier packaging solution aiming at three major defects of easy breakage, non-environmental response release and toxicity of a chemical cross-linking agent in the existing microcapsule coating. The pH response type microcapsule is constructed through double-layer alternate self-assembly of chitosan and phytic acid, a compact network barrier is formed by electrostatic crosslinking of positive and negative charges, and the structural stability is enhanced by combining a natural cross-linking agent genipin; in the fiber loading stage, plasma pretreatment is adopted to increase the surface roughness, vacuum negative pressure drives microcapsule permeation, and steam setting promotes anchoring setting. Core innovations include an intelligent release mechanism, washability breakthrough, ecological safety and actually measured performance display. The method solves the problem that the lyocell fiber is difficult to decompose the permethrin in the NMMO solvent system, and has the advantages of efficient protection and environmental friendliness.

The invention discloses an antistatic flame-retardant fiber and a preparation method thereof, and relates to the technical field of functional textile materials. When the antistatic flame-retardant fiber is prepared, the multi-walled carbon nanotube is carboxylated to prepare the modified multi-walled carbon nanotube; carrying out surface free radical polymerization on the modified multi-walled carbon nanotubes and caprolactam to obtain modified polyamide 6 slices; the modified polyamide 6 is sliced and spun, and modified polyamide 6 fibers are prepared; the preparation method comprises the following steps: respectively reacting phytic acid and 2, 3-epoxypropyl trimethyl ammonium chloride with chitosan to prepare a polyanion / cation modified chitosan solution; the modified polyamide 6 fiber is alternately soaked in two modified chitosan solutions, and is treated by cocamidopropyl betaine to prepare the antistatic flame-retardant fiber. The antistatic flame-retardant fiber prepared by the invention has excellent antistatic property, flame retardance and mechanical strength.

The invention belongs to the field of polymer chemistry and biological medicine materials, and relates to application of a polymer polysaccharide slow-release carrier in medicinal and edible components and a preparation method of the polymer polysaccharide slow-release carrier. The carrier is composed of phytic acid-genipin cross-linked modified chitosan, tannic acid, sodium lactate, glycerin, vitamin E acetate, sodium alginate and deionized water. The phytic acid-genipin cross-linked modified chitosan is prepared by reacting chitosan with phytic acid and genipin, and has reversible cross-linking and polydentate coordination properties; the tannic acid and the modified chitosan can form a multi-point hydrogen bond and esterification network. The carrier is prepared through sol-gel forming or spray drying, is stable in structure, good in dispersity, high in drug loading capacity, stable in an acid environment and controllable in release under a neutral condition, remarkably improves the slow release performance and bioavailability of medicinal and edible components, and is suitable for functional food and drug delivery systems.

The invention relates to the technical field of lithium ion battery manufacturing, and discloses a preparation method of a silicon-containing silicon oxide-phenolic resin-artificial graphite composite negative electrode material, which comprises the following steps: grafting phytic acid on the surface of silicon-containing silicon oxide to construct a protonated acidic site, mixing modified silicon-containing silicon oxide, phenolic resin and artificial graphite, and keeping at a constant temperature to obtain the silicon-containing silicon oxide-phenolic resin-artificial graphite composite negative electrode material. Preferentially carrying out pre-polycondensation by utilizing phytic acid catalysis interface resin to form a gel layer, and rapidly removing a solvent to obtain a precursor; according to the preparation method disclosed by the invention, interface chemical anchoring is established before solvent volatilization by utilizing a dynamic competitive mechanism, so that the problem of stripping of resin and active particles caused by solvent volatilization in a traditional process is solved, and the structural stability and the electric conduction continuity of the material in a battery circulation process are improved.

The invention provides an intrinsic flame-retardant epoxy resin composition containing nitrogen and phosphorus elements and a preparation method of the intrinsic flame-retardant epoxy resin composition, and belongs to the technical field of high polymer materials. The intrinsic flame-retardant epoxy resin composition containing nitrogen and phosphorus elements comprises the following components in parts by weight: 1-2 parts of a mixed component C which is obtained by mixing a polyethyleneimine aqueous solution and a phytic acid aqueous solution; 1-16 parts by weight of bisphenol A type epoxy resin; and 0.01-1 part by weight of an anhydride curing agent. According to the composition, two flame-retardant elements, namely nitrogen and phosphorus, are simultaneously introduced into the epoxy resin, so that the mechanical property and the processing adaptability of the material can be considered while efficient flame retardance is realized.

The invention discloses a tenuilia microspora NB1-3, a leavening agent and application of the tenuilia microspora NB1-3 in preparation of caragana microspora and moringa oleifera fermented protein feed. The strain is classified and named as nicotiana microspora, and is preserved in the China Center for Type Culture Collection (CCTCC), and the preservation number is CCTCC NO: M 20251872. The core of the method is that crude fibers and antinutritional factors (tannin and phytic acid) in moringa oleifera and caragana microspora are efficiently degraded by utilizing a strong lignocellulose degrading enzyme system of the tenuilia microspora NB1-3, and meanwhile, the crude protein content of the feed is increased. The prepared fermented protein feed is high in crude protein content and low in crude fiber content and meets the protein feed standard, efficient and high-value utilization of woody plant resources such as caragana microphylla and moringa oleifera is achieved, and a new high-quality and economical protein feed source is provided for animal husbandry.

This invention discloses a composite additive for repairing the foaming properties of recycled polystyrene, relating to the field of recycled polystyrene. It comprises: 30-50 parts of a matrix repair component, 20-35 parts of a nucleating-reinforcing composite component, 10-20 parts of an antibacterial and flame-retardant composite component, and 5-10 parts of a dispersant. Modified rosin ester and polybutadiene oligomers are used as the matrix repair component, combined with nano-calcium carbonate and talc as the nucleating-reinforcing composite component, and further combined with phytic acid and quaternized chitosan functional components and zinc stearate dispersant to form a stable composite system. This system imparts antibacterial and flame-retardant properties to the product, solving the problem of single-function traditional additives, significantly improving the quality of recycled material products, realizing high-value utilization of recycled materials, and simultaneously repairing damaged molecular chains in recycled materials, improving processing flowability and cell nucleation effect, thus compensating for the deficiency of reduced foaming performance in recycled polystyrene.

The application belongs to the field of polymer composites, and particularly relates to a synergistic flame-retardant composite material for fireproof doors and a preparation method thereof; aiming at the problem that excessive addition of a flame retardant can cause the mechanical property of a composite material to decrease; the application improves the dispersibility of nano-zinc oxide in a PVC matrix through citric acid / phytic acid composite modification, and forms a high-efficiency synergistic flame-retardant system by compounding with aluminum diethyl phosphinate and melamine cyanurate; by constructing a gradient functional structure of a high-flame-retardant region and a low-flame-retardant region, and cooperating with a co-extrusion process, the damage of the flame retardant to the mechanical property of the matrix is reduced while the overall excellent flame-retardant property of the material is ensured.

The invention discloses a method for preparing lithium iron manganese phosphate by obtaining a high-performance precursor from waste lithium iron phosphate. According to the method disclosed by the invention, the chelating effect of phytic acid and ferric ions is utilized, so that an organic carbon source is introduced into hydrated iron phosphate precipitated from the waste lithium iron phosphate leaching solution, the fusion growth of iron phosphate particles is effectively prevented in the subsequent high-temperature roasting process, and the high-performance lithium manganese iron phosphate precursor is obtained from the waste lithium iron phosphate. The method comprises the following steps: dissolving waste lithium iron phosphate powder in a sulfuric acid solution, then adding a small amount of a phytic acid solution and ferric sulfate with a corresponding molar weight, precipitating and calcining at a high temperature to obtain dehydrated iron phosphate (FP-PA) with a limited particle size; when the material is applied to synthesis of a lithium manganese iron phosphate positive electrode material, the particle size of the positive electrode material can be effectively controlled, and the specific capacity and cycle performance of a battery are improved. The method is easy to operate and high in repeatability, and a new way is provided for treating waste lithium iron phosphate with economic benefits and excellent performance.

The invention discloses an anticorrosive graphene coating and a preparation method thereof, and belongs to the technical field of coating preparation, and the coating comprises the following components in parts by weight: 80-95 parts of water-borne epoxy resin, 8.5-9.5 parts of graphene anticorrosive filler, 0.5-1 part of a flatting agent, 0.5-1 part of a defoaming agent, 7-9 parts of a curing agent and 0.2-0.3 part of a dispersing agent. The addition of the phytic acid solution and the pretreatment of the Na-montmorillonite can synergistically enhance the impact resistance and corrosion resistance of the coating prepared by the invention.

The application discloses a water-based fire-retardant paint for wood surface and a preparation method thereof, and the paint is prepared by using a water-based resin emulsion as a matrix, using natural phytic acid as a core fire-retardant component and through an innovative pre-neutralization process. The specific method is as follows: first, phytic acid solution is mixed with a pH regulator to adjust the pH to 6.0-8.5 to obtain a neutralized premix; then, the premix is mixed with the water-based resin emulsion and film-forming aids; finally, wetting dispersants, defoaming agents, thickening agents and other aids are added to obtain the paint. Through the pre-neutralization step, the key problem that the strong acidity of phytic acid leads to the demulsification of the resin emulsion and the deterioration of the coating performance is effectively solved, so that the natural phytic acid can be stably and efficiently applied to the water-based system. The obtained paint is environment-friendly, storage-stable and easy to operate, and the coating formed by coating the paint on the wood surface has excellent fire-retardant performance and good physical properties such as adhesion and water resistance, so that the integration of wood decoration, protection and fire retardation is realized.

The invention discloses a phosphating solution based on electric triggering and bionic template cooperative regulation and control as well as a use method and application thereof, and belongs to the technical field of phosphating solutions. The phosphating solution comprises the following components: 5-60 g / L of a phosphating precursor; 0.1 g / L to 10.0 g / L of a bionic template agent; 0.5 g / L to 20 g / L of a nanometer reinforcing phase; 7-65 g / L of a metal ion source; 0.1-3.0 g / L of an oxidizing agent; the pH regulator is used for regulating the pH value to 3.5 to 6.0; and the balance of deionized water. The phosphating precursor is one or more of phytic acid, amino trimethylene phosphonic acid and 1-hydroxyethylidene-1, 1-diphosphonic acid; when the phosphating solution is used, a workpiece is used as a cathode to apply an electric field. The phosphating solution is used for metal protection or metal drawing. A phosphating film formed by the phosphating solution based on electric triggering and bionic template cooperative regulation under the action of an electric field has excellent corrosion resistance, adhesive force and wear resistance, and sediment in the phosphating process is few.

This invention provides a bamboo-like carbon nanotube with a heterostructure, its preparation method, and its applications. The preparation method includes: dissolving cobalt nitrate and heteropolyacid in ethanol to obtain a first solution; dissolving dicyandiamide in a mixed solution of ethanol and water to obtain a second solution; mixing phytic acid with the second solution uniformly and performing a polymerization reaction to obtain a third solution; adding the first solution to the third solution to perform a chemically induced self-assembly reaction, washing and drying to obtain a dicyandiamide-heteropolyacid-phytic acid-cobalt ion organic polymer; and calcining to obtain the bamboo-like carbon nanotube with a heterostructure. This method is simple and inexpensive; the Co2P and WN / MoN nanoparticles in the bamboo-like carbon nanotube are uniformly distributed in the carbon matrix, improving the electrochemical performance of the material; the introduction of dicyandiamide and phytic acid enables nitrogen and phosphorus doping of the carbon framework, improving the conductivity of the carbon support; and the resulting product exhibits high capacity and excellent cycle stability as a cathode material for metal-air batteries.

The invention relates to the field of composite materials, in particular to a steel-wood structure which is composed of a steel component and a wood component. The wood component is wood subjected to flame-retardant modification by phytic acid and transition metal-based ionic liquid; anions of the transition metal-based ionic liquid contain transition metal elements, the wood component prepared by the method is good in flame retardant property and has the advantages of long ignition time and small total heat release amount, and the mechanics is only reduced slightly.

This invention belongs to the field of flame retardant technology, specifically relating to a coated boron nitride and its preparation method and application, and a biodegradable flame-retardant composite material and its preparation method and application. This invention employs a multi-level structure regulation approach, utilizing silane coupling agents and chemical bonding for surface coating modification, effectively alleviating stress concentration. Furthermore, regular polyhedral flame-retardant units are constructed on the coated and modified two-dimensional boron nitride surface, building a three-dimensional flame-retardant network. Through phytic acid molecular bridging, an inorganic-organic interface transition layer is formed, significantly improving the interfacial adhesion strength between the functional phase and the matrix resin. This invention constructs a flame-retardant structural system based on molecular configuration optimization, optimizing the interfacial compatibility between the functional phase and the biodegradable matrix resin. It utilizes a bio-based phosphorus-nitrogen synergistic flame-retardant system combined with a two-dimensional boron nitride structure for composite design, constructing a flame-retardant network system with both high-efficiency flame-retardant properties and excellent performance.

The application discloses a rust-proof enhancer for PAG quenching liquid, and raw materials of the rust-proof enhancer include the following components in parts by weight: 40-45 parts of organic-inorganic rust-proof additive, 35-40 parts of pH regulator, 5-10 parts of non-ferrous metal rust-proof agent and 5-10 parts of antibacterial agent; the organic-inorganic rust-proof additive is a mixture of dicarboxylic acid, tricarboxylic acid, phytic acid, isomeric decanoic acid, fatty acid amide or fatty acid amine salt and sodium tungstate; the components synergistically generate a stable rust-proof film on the surface of metal, the rust-proof film has strong adhesion and can be firmly attached to the surface of metal, is less affected by the polarity of PAG, can effectively enhance the rust-proof performance of steel workpieces after quenching, and has no adverse effect on the properties such as the cloud point, viscosity, foam and cooling characteristics of the quenching liquid.

The invention discloses a medical silica gel sealing ring material and a preparation method thereof, and relates to the field of silica gel materials. When the medical silica gel sealing ring material is prepared, mica powder, phytic acid, diglycidyl ether and allyl glycidyl ether are uniformly mixed and react to obtain modified mica powder; the preparation method comprises the following steps: reacting 4-(2-aminoethyl) phenylboronic acid with 3, 3 '-dihydroxy-[1, 1'-biphenyl]-4, 4 '-diformaldehyde to obtain a graft; the preparation method comprises the following steps: reacting vinyl silicone oil, thioglycerol and methacryloylethyl sulfobetaine to obtain modified silica gel; uniformly mixing the modified silica gel, the modified mica powder and the graft, and reacting to obtain the medical silica gel sealing ring material. The medical silica gel sealing ring material prepared by the invention has excellent flame-retardant, anti-aging, antifouling and mechanical properties.

The embodiment of the invention discloses yarrowia caribeckii as well as a separation and screening method, an identification method and application of the yarrowia caribeckii. The preservation number of the yarrowia caribica is CGMCC (China General Microbiological Culture Collection Center) No.27604, and the preservation number of the yarrowia caribica is CGMCC No.27604. The Caribik Yarrowia spp. Provided by the embodiment of the invention has a good antagonistic effect on gray mold, penicilliosis, black spot and aspergillus niger after fruits are picked, and can obviously reduce the disease morbidity of the fruits of strawberries, apples, tomatoes and pears. And the antagonistic bacterium is identified to be Meyerozyma caribbica, and the antagonistic bacterium can be used as the Meyerozyma caribbica. By respectively adding auxiliary factors, namely calcium chloride, alginate oligosaccharide (AOS), phytic acid (PA) and metschhia pastoris, the disease prevention and control effects of Meyerozyma caribbica can be enhanced. The disease prevention and control effects of the Meyerozyma caribbica can be enhanced by adding the auxiliary factors of calcium chloride, alginate oligosaccharide (AOS), phytic acid (PA) and metschhia pastoris.

The invention discloses a boron-phosphorus synergistic starch-based single-component intumescent flame retardant as well as a preparation method and application thereof. Starch, phytic acid, boric acid, allantoin and the like are used as raw materials, and the boron-phosphorus synergistic starch-based single-component intumescent flame retardant integrating an acid source, a carbon source and a gas source is designed and prepared. The flame retardant provided by the invention is simple and convenient in preparation process and high in safety, most of the raw materials of the flame retardant are derived from green renewable biomass materials with low cost, and the flame retardant has environment-friendly characteristic and excellent polymer compatibility. The synergistic effect of the phytic acid boron component in a flame-retardant system can be fully exerted by regulating and controlling the ratio of boron to phosphorus, when the flame retardant is applied to a polylactic acid (PLA) material, the influence on the mechanical property of the PLA is small, the PLA can be endowed with excellent flame retardance, the molten drop phenomenon and a large amount of dense smoke in the combustion process of the PLA can be effectively inhibited, and the biodegradation speed of the PLA can be increased.