51 results about "Amino functionalized" patented technology

The application discloses a modified polyurethane water-based functional coating and a preparation process thereof, and belongs to the technical field of water-based functional coatings. In the application, N,N-dimethylethanolamine is used as a blocking agent to block the isocyanate prepolymer, so that a latent type blocked isocyanate water-based polyurethane emulsion is prepared; lactide monomers, epoxy group grafted modified nano silicon dioxide and amino functionalized light stabilizer microcapsules are added into the emulsion; curing is carried out by using a two-stage process, that is, after preheating and water removal and film formation, 130-150 DEG C baking is carried out to trigger the deblocking of the DMEA blocked isocyanate, and the tertiary amine groups in the deblocked DMEA molecules immediately initiate the ring-opening polymerization of the premixed lactide monomers in the system in situ to generate polylactic acid segments which are chemically grafted to the crosslinked network. The application realizes the synchronous linkage of crosslinking and curing and polymer toughening, and the obtained coating has the characteristics of high crosslinking density, excellent flexibility and low internal stress.

The invention belongs to the technical field of high polymer materials and coatings, and relates to an amino POSS (Polyhedral Oligomeric Silsesquioxane) crosslinking system for a water-based coating. The system takes water as a continuous phase, and comprises a water-soluble amino functionalized polyhedral oligomeric silsesquioxane (NPOSS) and an epoxy functionalized polyacrylate polymer microsphere aqueous dispersion, additives belonging to volatile organic compounds (VOC), such as organic solvents and coalescing agents, are not additionally added into the system. When in use, NPOSS as a multifunctional cross-linking agent is subjected to amine-epoxy addition reaction with an epoxy functionalized polymer in a water phase, and a cross-linked thermosetting coating can be formed on the surface of a base material such as an aluminum material, glass and the like. Compared with an existing water-based paint technology, the technology has the advantage that VOC emission in the film forming process of the water-based paint is remarkably reduced. Meanwhile, the NPOSS endows the coating with excellent thermal stability, mechanical strength and chemical resistance. The curing strategy is completely water-based, simple and convenient in process, environment-friendly and suitable for various fields with environmental protection requirements such as home furnishing, automobiles, aerospace and the like.

The present invention relates to a sulfur crosslinkable rubber compound, a vulcanized rubber, a component, and a corresponding vehicle tire, the sulfur crosslinkable rubber compound comprising at least one polyisoprene at 40 to 80 phr, at least one amino-functionalized butadiene rubber at 10 to 40 phr and having a cis content of less than 80%, and at least one functionalized SBR rubber at 10 to 50 phr.

The present invention relates to an oil-based composition containing an oil-based solvent selected from hydrocarbon oils and an alkyl-terminated amino-functionalized silicone dissolved or dispersed in the oil-based solvent, as well as a process for its preparation. The invention also relates to a hair conditioning formulation containing the oil-based composition and a method of conditioning hair using the formulation.

The application discloses a kind of multistage filtration systems for ultrapure water production process, multistage filtration system includes primary filter device and secondary filter device, RO concentrated water stock solution is sequentially transported to primary filter device, secondary filter device;The inside of primary filter device is equipped with colloidal silica filter material, the inside of secondary filter device is equipped with colloidal iron filter material;Colloidal silica filter material is amino functionalized MOFs nanofiber composite membrane, colloidal iron filter material is nanofiber membrane with surface grafted hydroxamic acid group.The multistage filtration system for ultrapure water production process provided by the application has excellent colloidal silica removal effect and excellent colloidal iron removal effect.

The invention relates to the technical field of gas adsorption separation, in particular to a method for improving stability of an IL-coated MOF composite material and preparation and application of the material. The method comprises the following steps: synthesizing multi-amino functionalized IL; carrying out cross-linking on the multi-amino functionalized IL by adopting a double epoxy group cross-linking agent to obtain cross-linked IL; and compounding the cross-linked IL and the MOF material through impregnation to prepare the IL-coated MOF composite material. The method belongs to a material post-modification strategy, the basic synthesis process of MOF or IL does not need to be changed, only one-step crosslinking is added before compounding, the crystalline structure of MOF is not damaged, dispersed IL molecules are locked into a whole through crosslinking, migration and loss of IL in MOF are limited, and the prepared IL-MOF composite material has excellent stability, adsorption performance and cycle performance and is suitable for industrial production. And the application requirements of industrial COS trapping and separation are completely met.

The application discloses a kind of composite flame retardant, epoxy resin composite material and preparation method thereof, the amino functionalized MOF nanoparticles of the present application is synthesized by DMF aqueous solution system one-step solvothermal reaction, then it is prepared MOF@APP flame retardant by the way of in-situ composite mediated by silane coupling agent, ultrasonic auxiliary, overall process is simple, condition is mild, controllability is strong, can stably synthesize the MOF nanoparticles of amino functional group abundance, particle size is uniform, and realize the stable composite of MOF and ammonium polyphosphate, avoid the phase separation, uneven dispersion problem brought by simple physical mixing, finally the flame retardant obtained has the carbon catalysis of MOF, smoke adsorption function and APP's intumescent flame retardant function, and the two form significant flame-retardant synergistic effect, fundamentally solve the problem that traditional APP flame retardant adds large amount, and the compatibility of epoxy resin is poor, easily leading to the serious loss of matrix mechanical property.

The invention relates to the technical field of industrial solid waste recycling and road engineering materials, and discloses a multi-solid-waste composite roadbed material and a preparation method thereof.The preparation method specifically comprises the steps that on the basis of the Schiff base condensation reaction mechanism, aldehyde group functionalized light-stable montmorillonite and octa-phenylamino-POSS functionalized asphalt which are researched and developed independently are subjected to chemical bonding type compounding, and the composite roadbed material is obtained; the high-performance asphalt is prepared; high-performance asphalt is emulsified to obtain high-performance emulsified asphalt, the high-performance emulsified asphalt and cement are used as organic-inorganic composite gelling components, an industrial solid waste system composed of ardealite, titanium gypsum and yellow phosphorus slag is immobilized, and the multi-solid-waste composite roadbed material is prepared and shows excellent ultraviolet aging resistance. And the compressive strength can meet the technical requirements of cement stabilizing materials for heavy traffic load grade bases of expressways and first-grade highways in JTG D50-2017 on 7d unconfined compressive strength of 4.0-6.0 MPa.

The invention discloses a preparation method of a mesoporous silica nanosphere composite material and application of the mesoporous silica nanosphere composite material as a lithium ion battery negative electrode material, and belongs to the field of material synthesis. The preparation method comprises the following steps: 1) dropwise adding a certain amount of a silane coupling agent and a silicon source into an aqueous solution containing a cationic surfactant to obtain a reaction solution, and after the reaction is completed, carrying out suction filtration, pickling and drying to obtain amino-functionalized mesoporous SiO2 nanospheres; 2) ultrasonically dispersing the obtained mesoporous SiO2 nanospheres in an aqueous solution containing carboxylic acid to obtain a dispersion liquid A; 3) dissolving an organic compound containing a nitrogen heterocyclic ring in water to obtain a solution B; 4) mixing the dispersion liquid A and the solution B, and after the reaction is completed, carrying out suction filtration to obtain a precipitate; and 5) carrying out carbonization reaction on the precipitate in an inert atmosphere to obtain the nitrogen-doped SiO2 (at) C composite material. The micron-sized two-dimensional sheet-shaped carbon structure is constructed through amidation reaction, and nano SiO2 is anchored in the micron-sized two-dimensional sheet-shaped carbon structure, so that the preparation method is ingenious and efficient, and has expandability and flexibility required by commercialization. The one-step amino functionalized mesoporous SiO2 nanosphere is uniform in particle and ordered in pore channel, and can be applied to the fields of catalysis, energy, adsorption, medicine and the like.

The present application relates to a kind of self-repairing solvent-free epoxy heavy-duty coating and its preparation and use method, belong to epoxy resin coating technical field.The coating is composed of A, B component;A component includes epoxy resin matrix, first microcapsule dispersed therein, inhibitor microcapsule and amino functionalized graphene nanosheet, the first microcapsule core is low viscosity epoxy healing agent, and the wall is polyurea, the core of inhibitor microcapsule is volatile inhibitor, and the wall is polylactic acid;B component includes modified amine curing agent and the second microcapsule dispersed therein, and the core of second microcapsule is latent curing agent, and the wall is polymethyl methacrylate.The coating of the present application has self-repairing and heavy-duty function, is suitable for the harsh corrosion environment of ship, aircraft, high-speed rail, ocean engineering and other fields, can significantly prolong the service life of component.

This invention relates to the field of air pollutant control and environmental protection materials technology, and discloses a low-temperature oxidation adsorbent and its application in flue gas NO. X The deep denitrification process utilizes a low-temperature oxidation adsorbent comprising an amino-functionalized micron-sized diatomite core layer and an aldehyde-functionalized nano-manganese-cerium composite oxide active shell layer. The core layer and the active shell layer are bonded by Schiff base covalent bonds formed by the condensation of amino and aldehyde groups, and C=N covalent bonds are formed at the interface between the two phases, constructing a micro-nano hierarchical composite material with integrated adsorption and catalysis functions. The micro-nano dual-scale rough structure on the surface of this material, along with the synergistic effect of low surface energy phenylsiloxane and diundecyl long-chain hydrophobic groups, endows the catalyst with excellent hydrophobic properties. Under harsh high humidity conditions of 100℃ and 10-20 vol% H2O, the catalyst can still maintain a denitrification rate of over 81%, and the activity loss rate is significantly lower than that of traditional physical mixed catalysts, effectively coping with fluctuations in industrial high-humidity desulfurization flue gas.

The invention provides a bowl-shaped Janus mesoporous silica nano motor and a preparation method and application thereof, and belongs to the technical field of novel biomedical materials and eye disease treatment. The preparation method comprises the following steps: preparing ZIF-8 amp by taking a ZIF-8 nanocube as a seed and taking tetraethoxysilane as a silicon source; the preparation method comprises the following steps: preparing an mSiO2 anisotropic nano hybrid, performing amino functional modification, etching to remove a ZIF-8 core to obtain amino functional bowl-shaped mesoporous silicon dioxide, and passing through B-mSiO2amp; and asymmetrically and covalently grafting catalase on the outer surface of the Janus mesoporous silica nano-motor through amino active sites on the surface of NH2 to obtain the bowl-shaped Janus mesoporous silica nano-motor. The nano-motor prepared by the invention can realize directional autonomous movement in the presence of H2O2 at an infected part, effectively enhances the penetrating ability of a drug across a corneal barrier, goes deep into corneal stroma and a bacterial biofilm, and solves the problem of low delivery efficiency of a traditional drug.

Amino-functionalized linear and cyclic oligosiloxanes, which have at least two silicon and two oxygen atoms as well as an organoamino group and methods for making the oligosiloxanes are disclosed. Methods for depositing silicon and oxygen containing films using the organoamino-functionalized linear and cyclic oligosiloxanes are also disclosed.

A composition or a contraceptive composition comprising a mucoadhesive polymer in a physiologically acceptable carrier, wherein the mucoadhesive polymer consists of 4 to 20 monomers units linked to each other via ether, ester or amide bonds, which monomer units are selected from the list consisting of amino functionalised C6 sugars, C6 sugars, amino functionalised C5 sugars, C5 sugars, amino acids, fatty acid derivatised C6 sugars and fatty acid derivatised C5 sugars and its uses thereof.

The invention provides an NH2-MIL-88B derived iron-based nano enzyme as well as a preparation method and application of the NH2-MIL-88B derived iron-based nano enzyme. The preparation method comprises the following steps: dissolving 2-aminoterephthalic acid and ferric trichloride hexahydrate in N, N-dimethylformamide, stirring, carrying out a hydrothermal reaction, centrifuging, washing, and drying to obtain NH2-MIL-88B precursor powder; and placing the NH2-MIL-88B precursor powder in a tubular furnace filled with hydrogen, calcining the NH2-MIL-88B precursor powder, and then cooling the NH2-MIL-88B precursor powder to obtain the NH2-MIL-88B derived iron-based nano-enzyme. According to the preparation method, a specific amino-functionalized MOF precursor is directly converted into an active body through a one-step hydrogen calcination method instead of being used as an inert carrier for loading other drugs, and the prepared iron-based nano-enzyme is rich in oxygen vacancy defects with specific concentration and can be used for preparing the nano-enzyme. The multi-enzyme catalytic activity similar to peroxidase, superoxide dismutase and catalase is excellent, and the multi-enzyme catalytic activity similar to peroxidase, superoxide dismutase and catalase and the characteristics of resisting bacteria and promoting wound healing are achieved.

The invention relates to the technical field of rubber product manufacturing, and discloses an ethylene propylene diene monomer modified multilayer silicone tube and a preparation method thereof.The specific technical scheme includes that self-made hepta-epoxy type hydrogen-containing POSS and vinyl-terminated fluorosilicone oil are subjected to a hydrosilylation reaction to prepare epoxy functionalized POSS type fluorosilicone oil, and the epoxy functionalized POSS type fluorosilicone oil is subjected to a hydrosilylation reaction to prepare the ethylene propylene diene monomer modified multilayer silicone tube. Homemade amino-functionalized SiO2-EPDM is utilized to realize covalent bond interaction with the epoxy-functionalized POSS type fluorosilicone oil through an epoxy-amino ring-opening reaction, and the ethylene propylene diene monomer modified silicone rubber is prepared. The ethylene propylene diene monomer modified silicone rubber prepared by the invention realizes the effect of synchronously improving the strength and the toughness on the basis of excellent fuel medium corrosion resistance; on the basis, the silicone tube used as the cold shrinkage type cable accessory is designed and manufactured by adopting a multi-layer composite structure, and the durability of the silicone tube used in specific harsh environments such as underground coal mines, chemical plants and ocean platforms is effectively improved.

The invention provides a sizing method for carbon fibers with high interface bonding strength, which belongs to the technical field of carbon fibers and comprises the following steps: activating carbon fibers subjected to high-temperature carbonization; immersing the activated carbon fiber in the sizing liquid, and performing ultrasonic treatment to obtain the impregnated carbon fiber; wherein the sizing liquid is prepared from a sizing agent, and the sizing agent is prepared from diethanol amine modified novolac epoxy resin, a diepoxy terminated catechol-phenylboronic acid ester cross-linking agent, an amino-functionalized multi-walled carbon nanotube, amino-terminated polyether and water; and sequentially carrying out first high-temperature treatment and second high-temperature treatment on the impregnated carbon fiber to obtain the carbon fiber with high interface bonding strength. The sizing method provided by the invention effectively solves the problems of weak interface bonding force, easy debonding, brittle fracture and the like caused by chemical inertness of the surface of the carbon fiber, and obviously improves the interface shear strength, the interface stripping toughness and the overall cycle fatigue life of the carbon fiber composite material.

The invention relates to the technical field of knitted fabrics, and discloses a chinlon-spandex fabric with cool touch sense and a preparation process thereof.The preparation process of the chinlon-spandex fabric with the cool touch sense comprises the following steps that a modified biguanidyl compound reacts with a boron-containing compound, and a multifunctional modifier is obtained; the preparation method comprises the following steps: reacting an amino functionalized caprolactam monomer with 2-butyl-5-chloro-1H-imidazole-4-formaldehyde to obtain a modified caprolactam monomer; the modified caprolactam monomer is subjected to modification treatment by a multifunctional modifier and then is copolymerized with epsilon-caprolactam to obtain the high-performance PA6. Mixing the high-performance PA6 with the multifunctional cool-feeling filler to prepare cool-feeling polyamide fiber; the chinlon-spandex fabric with cool touch feeling is prepared by blending the cool chinlon fibers and the spandex fibers; the cool polyamide fiber contains the multifunctional cool filler and the high-performance PA6, so that the nylon / spandex fabric is endowed with cool touch feeling, the flame retardance, antibacterial property, sunscreen property and the like of the fabric are improved, and the wearing requirements of various occasions are met.

A process is provided for preparing an aqueous emulsion of an amino-functional polyorganosiloxane. The process includes mixing A) an amino-functional polyorganosiloxane, B) a non-ionic surfactant, and C) water; and thereafter mixing in additional starting materials including additional water, D) a water soluble salt, E) a pH adjusting agent, and F) a preservative. A phase inversion occurs during the process, such that the resulting emulsion has A) the amino-functional polyorganosiloxane in the internal, discontinuous phase and C) the water in an external, continuous phase.

The invention relates to the technical field of composite materials, in particular to a lightweight electromagnetic shielding modified polyaryletherketone composite material and a preparation method thereof. Comprising polyaryletherketone matrix resin and further comprises the following substances based on the weight of the polyaryletherketone matrix resin: 1%-5% of a graft of low-melting-point polyaryletherketone and a conductive filler, 0.1%-0.5% of a dispersant, 0.2%-0.8% of a silane coupling agent and 0%-0.5% of an antioxidant, the graft of the low-melting-point polyaryletherketone and the conductive filler is obtained by carrying out chemical reaction on the epoxy-terminated low-melting-point polyaryletherketone and the amino-functionalized conductive filler in an organic solvent under the action of a catalyst; the low-melting-point polyaryletherketone is modified, so that the composite material which is light in weight and absorbs a dominant electromagnetic shielding mechanism is realized under the condition of relatively low filler amount, and meanwhile, the composite material also has relatively good high-temperature stability, and meets the high-temperature environment requirement and the weight reduction requirement of an aerospace engine compartment.

Disclosed herein are organoamino-functionalized cyclic oligosiloxanes having at least two silicon and two oxygen atoms and an organoamino group, and methods for making the organoamino-functionalized cyclic oligosiloxanes. Also disclosed are methods of depositing a silicon and oxygen containing film using the organoamino-functionalized cyclic oligosiloxanes.

There is disclosed a metal ion detection device, comprising a working electrode on which a droplet of the solution sample is placed, a counter electrode; and a reference electrode, wherein a droplet of a pH indicator solution is further placed on the working electrode surface after drying the working electrode surface, leading to conversion of metal ions present in the solution sample to corresponding metal atoms and deposition of the metal atoms on the working electrode surface. The working electrode is a glassy carbon electrode modified with amino-functionalized multi-walled carbon nanotubes (MWCNTs-NH2) and an amide derivative of benzoic acid (ADB). The device enables multi-metal ions detection, toxic metal ions removal from wastewater and metals enrichment / recovery via electroreduction. A method of detecting multiple co-existing metal ions from a solution sample is also proposed.

The invention relates to a biomass charcoal loaded UiO-66 (NH2) composite material and a preparation method and application thereof.The preparation method comprises the following steps that agricultural straw biomass raw materials are subjected to oxygen-limited pyrolysis and then activated through an alkali solution, and pretreated biomass charcoal is obtained; adding the pretreated biomass charcoal into a reaction system containing zircon salt and an aminoterephthalic acid ligand, and reacting under a heating condition, so that metal organic framework crystals grow in situ on the surface of the pretreated biomass charcoal; and after the reaction is finished, washing with ethanol and drying to obtain the biomass charcoal loaded amino functionalized zirconium-based metal organic framework composite material, namely BC (at) UiO-66 (NH2). The BC-coated UiO-66 (NH2) material prepared by the method shows high selectivity to phosphorus in a competitive system in which multiple ions coexist, so that high-efficiency, low-cost and high-added-value recovery of phosphorus from waste is realized.

Methods for partial or full-surface sealing of drivable concrete traffic surfaces comprising the following work steps: 1. Substrate treatment with a primer based on aliphatic polyisocyanates and polyaspartic acid ester mixtures 2. Application of a liquid sealing layer based on aliphatic polyisocyanates and polyaspartic acid ester mixtures 3. Application of an adhesive layer based on aliphatic polyisocyanates and polyaspartic acid ester mixtures 4. Sprinkle quartz sand into the bonding layer 5. Application of at least one mastic asphalt wearing course characterized in that polyaspartic acid ester mixtures are used, containing at least i) a polyaspartic acid ester of the structure ii) at least one further amino-functional polyaspartic acid ester of the general structural formula in which R1 and R2 independently represent a methyl group or an ethyl group and X represents a divalent organic residue formed by removing the amino groups from an amino polyether of the general structural formula, which also includes corresponding constitutional isomers and n represents a number from 2 to 8, preferably 2.5 to 6.5 and particularly preferably 2.5 to 4.5.

The application belongs to the technical field of coating materials, and provides an environment-friendly flame-retardant coating of glass fiber cloth for interior walls, which comprises the following components in parts by weight: 40-60 parts of water-based polyurethane, 1-3 parts of modified cellulose, 1-2 parts of melamine, 10-20 parts of bio-based self-repairing microcapsules, 2-4 parts of ammonium polyphosphate, 5-10 parts of nano hydrotalcite, 0.5-1.5 parts of cage-type silsesquioxane, 1-2 parts of nano aluminum hydroxide, 0.5-1.5 parts of nano silicon dioxide, 1-2 parts of an additive, 1-2 parts of a binder, and 1-2 parts of a coupling agent; the wall material of the bio-based self-repairing microcapsules is cyclodextrin, and the core material is a mixture of phytic acid and melamine; the cage-type silsesquioxane is a polyhedral oligomeric silsesquioxane functionalized with epoxy groups or amino groups; and the preparation method of the environment-friendly flame-retardant coating of glass fiber cloth for interior walls comprises the following steps: preparing phytic acid grafted modified cellulose, preparing bio-based self-repairing microcapsules, and performing surface functionalization treatment on nano silicon dioxide.

The invention discloses an IL (at) CGA (at) MOF nano composite material for promoting wound healing of diabetes mellitus infected by drug-resistant bacteria as well as a preparation method and application of the nano composite material, and belongs to the technical field of biological materials. The nano composite material (NH2-IL (at) CGA (at) ZIF-67) is constructed by taking a ZIF-67 metal organic framework with pH responsiveness as a carrier and sequentially loading an antioxidant component chlorogenic acid (CGA) and an antibacterial component amino functionalized ionic liquid (NH2-IL) through a coordination and impregnation method. The composite material can intelligently release active components in a weakly acidic wound microenvironment, shows excellent sterilization and anti-biofilm activity on staphylococcus aureus (including MRSA), and is not easy to induce drug resistance; meanwhile, free radicals can be effectively removed, and the anti-oxidation effect is achieved. In-vivo and in-vitro experiments show that the hydrogel has good biocompatibility, and can significantly accelerate healing of chronic diabetic wounds infected by drug-resistant bacteria through synergistic antibiosis, inflammation relief and promotion of collagen deposition and angiogenesis. The composite material can be used for preparing drugs or dressings for promoting wound healing, and a new strategy is provided for development of multifunctional wound treatment products.

Amino-functionalized cyclic oligosiloxanes, which have at least three silicon and three oxygen atoms as well as at least one organoamino group and methods for making the oligosiloxanes are disclosed. Methods for depositing silicon and oxygen containing films using the organoamino-functionalized cyclic oligosiloxanes are also disclosed.

Disclosed is a composition having: an organosilane polymer, a polyamide polymer; and an abrasive aggregate. The organosilane is made by: reacting an amino-functional alkoxysilane with one or more polyisocyanates to form one or more adducts having an unreacted isocyanate group; and reacting the adducts with one or more polyfunctional amino- and / or hydroxyl compounds so that the polymer contains no unreacted isocyanate groups. The polyfunctional amino- and / or hydroxyl compound has a cycloaliphatic group or an aromatic group. The composition can be used to make a single-component polysiloxane non-skid / non-slip coating that is applied by rolling, spraying, or troweling and cures with atmospheric moisture.

The invention discloses a radio frequency microwave test cable and a preparation method thereof, and relates to the technical field of cables. The method comprises the following steps: firstly, performing drawing, annealing and electrolytic polishing on an oxygen-free copper rod to obtain an inner conductor; then preparing silane modified nano silicon dioxide, and carrying out chemical imidization reaction to obtain modified PI composite resin; and adding the amino-functionalized reduced graphene oxide into the modified PI composite resin, and carrying out crosslinking and curing to obtain the modified PI insulating material. And finally, extruding an insulating material and coating the insulating material on the inner conductor, cooling and shaping, weaving a copper wire shielding layer, and finally coating a polyurethane sheath to obtain the test cable. The radio frequency microwave test cable prepared by the invention has excellent dielectric properties.

The present application relates to a kind of flexible heat-insulating polyimide aerogel and polyimide composite aerogel with active fire extinguishing function and its preparation method, belong to aerogel technical field.Flexible heat-insulating polyimide aerogel is obtained by mixing polyamide acid and amino functionalized SiO2 Nanoparticles PAA / SiO2 Aerogel, PAA / SiO2 Aerogel is subjected to thermal imidization treatment, with good heat insulation performance.Polyimide composite aerogel with active fire extinguishing function is coated with perfluorohexanone microcapsule on the surface of flexible heat-insulating polyimide aerogel, with good heat insulation, fire extinguishing and flame-retardant performance.