329 results about "Oragene" patented technology

The invention discloses a composite polyacrylamide flocculant based on a nano core-shell structure as well as a preparation method and application of the composite polyacrylamide flocculant. The composite polyacrylamide flocculant is a core-shell structure composite material which takes inorganic nanoparticles grafted with carbon-carbon double bonds on the surface as a core and takes a polyacrylamide copolymer as a shell; the polyacrylamide copolymer is prepared from the following components in parts by mass: 70 to 90 parts of acrylamide, 10 to 30 parts of functional monomer and 0.1 to 1.0 part of cross-linking agent. The basic conception of the flocculating agent provided by the invention is that the structural design of inorganic nano core-organic polymer shell is adopted, PAM molecular chains firmly grow on the surfaces of nano particles in a chemical grafting manner, high dispersion and functional synergy of nano units are realized, and the obtained product has the characteristics of high flocculation speed, dense floc, high removal efficiency and the like, and has a wide application prospect. The method is especially suitable for deep treatment of difficult-to-treat industrial wastewater such as oil-containing wastewater, dye wastewater and heavy metal wastewater.

The invention discloses a macrocyclic covalent organic polymer material for inhibiting a pi-pi stacking effect and application of the macrocyclic covalent organic polymer material, and belongs to the technical field of biological medicines. The preparation method comprises the following steps: adding 5, 10, 15, 20-tetra (4-ethynylphenyl) copper porphyrin and a macrocyclic monomer into an organic solvent in a protective atmosphere, and carrying out solvothermal reaction in the presence of a catalyst and alkali to obtain the macrocyclic covalent organic polymer material. According to the invention, 5, 10, 15, 20-tetra (4-ethynylphenyl) copper porphyrin and a macrocyclic monomer form a porous polymer MCP-CU-POP, the material utilizes the photo-thermal capability to combine the effects of simulated photo-thermal (PTT), photodynamic (PDT), peroxidase (PODs) and glutathione peroxidase (GSH-Px) to perform synergistic antibiosis, and the inherent characteristics of an infected microenvironment can also be utilized to induce death of bacteria, so that the antibacterial property of the material is greatly improved, and the antibacterial property of the material is greatly improved. And the microenvironment of the bacterial infection part can be adjusted, so that the recovery of the bacterial infection wound can be obviously accelerated.

The invention discloses an artificial SEI material and a preparation method thereof, an artificial SEI film and an artificial SEI film modified negative electrode. The artificial SEI material is an organic polymer brush (CNF-g-PSSX) prepared by grafting cellulose nanofibers with polystyrene sulfonate. The polymer brush is of a crystal structure and has a firm framework; and the side chain of polystyrene sulfonate has rich-SO3 functional groups which are matched with cations in sulfonate, so that a rapid ion transmission channel is provided, high-current-density circulation can be realized, and good interface contact is ensured. Due to a special molecular topological structure and a multi-component synergistic effect, when the organic polymer brush forms an artificial SEI film, high mechanical strength, high ionic conductivity and low interface impedance can be obtained at the same time, and through strong electrostatic repulsion between a negatively charged-SO3 group and the surface of a negatively charged lithium dendrite tip, the electrochemical performance of the artificial SEI film is improved. An obvious inhibition effect is shown on the continuous growth of dendritic crystals.

The present invention discloses a method for preparing highly dispersible submicron spherical palladium powder. The method comprises the following steps: first, weighing solid palladium nitrate and dissolving it in dilute nitric acid to prepare a dilute palladium nitrate solution; then dissolving a reducing agent in deionized water to obtain a reducing solution; then weighing a dispersant and an additive and dissolving them in deionized water to obtain a mixed base solution; and then mixing the three to obtain a reaction slurry containing palladium powder. The mixture is then filtered, washed, and dried to obtain submicron spherical palladium powder particles. The present invention adopts a liquid phase reduction method to reduce the palladium nitrate solution with ascorbic acid or hydrazine hydrate as a reducing agent to prepare the submicron spherical palladium powder. An organic polymer dispersant and a small molecule alcohol additive are simultaneously added to the base solution in a symmetrical manner. While ensuring the yield of palladium powder, the particle growth process and dispersibility are well controlled. The prepared palladium powder particles are spherical and highly dispersed, with a particle size of 100 to 600 nm.

The invention discloses a polyamine type porous polymer as well as a preparation method and application thereof, and belongs to the technical field of synthesis of porous organic polymers. The specific method comprises the following steps: dispersing beta-mercaptoethylamine, a photoinitiator and a porous framework polymer with carbon-carbon double bond connection in a polar organic solvent; under the ultraviolet light initiation condition, the photoinitiator excites beta-mercaptoethylamine to generate sulfydryl free radicals, and the sulfydryl free radicals and the porous framework polymer with carbon-carbon double bond connection are subjected to an addition reaction; and washing and drying the product after the addition reaction to obtain the amino-modified polyamine porous polymer. The preparation method provided by the invention is rapid in reaction, extremely high in reactant utilization rate and simple in post-treatment, and the prepared polyamine type porous polymer has rich adsorption sites, good stability and excellent carbon dioxide adsorption performance, and can be applied to the field of carbon capture and the like.

A preparation method of a glove having a soft coating with high wear resistance and high anti-slip performance is provided, including: physically spraying a bio-based organic polymer material on a surface of a glove core coated with an impregnation latex, conducting pre-vulcanization and high-temperature vulcanization successively, washing with an alkali liquor, an acid liquor, and water successively, and oven-drying to obtain the glove having the soft coating with high wear resistance and high anti-slip performance. The present disclosure has the following advantages: The preparation method is simple and reliable, and can greatly increase anti-slip performance and wear resistance of a coating while providing a delicate sand surface effect for the coating. The glove of the present disclosure has excellent anti-slip performance, durability, and comfortability in oily environments and dry environments.

A TPC-OTBS n-hexane solution is added to a mixture of TPC-OSO2F, DMF, and DBU and allowed to stand to produce a crosslinked solvent gel; the crosslinked solvent gel is added to methanol, stirred, and dried to produce the porous crosslinked material. The gel acquired can be prepared into a pore-rich solid porous organic polymer material by means of solvent exchange. SEM and TEM are used to characterize the surface and internal morphologies of the solid material, and the porous morphology thereof is discovered, with large pores being the majority. Infrared and nuclear magnetic resonance are used to characterize the structure of a crosslinked polysulfate; the complete reaction of a sulfuryl fluoride group is proven by means of solid-state fluorine nuclear magnetic resonance spectroscopy and XPS element analysis; and the porous structure of the crosslinked polysulfate allows same to be provided with improved application prospect in terms of adsorption.

The invention discloses a ZnO / PES mixed matrix ultrafiltration membrane and a polyaniline-ZnO / PES mixed matrix nanofiltration membrane as well as a preparation method and an application of the ZnO / PES mixed matrix ultrafiltration membrane and the polyaniline-ZnO / PES mixed matrix nanofiltration membrane. PES is used as an organic polymer, PEG1500 is used as a pore-foaming agent, ZnO is used as a nano filler, and the ZnO / PES composite ultrafiltration membrane is prepared through a non-solvent induced phase inversion method. The preparation method comprises the following steps: synthesizing a polyaniline coated ZnO nano composite material, blending zinc nitrate hexahydrate in ammonia water with a polyaniline solution to form a nano composite structure, and preparing the polyaniline-ZnO / PES mixed matrix nanofiltration membrane by taking the synthesized nano composite particles as a filler. According to the mixed matrix membrane technology, alkali and lignin in the black liquor can be directly recovered, compared with alkali recovery through a combustion method, the mixed matrix membrane technology has the advantages of being easy to operate, not complex in process, low in investment cost, small in occupied area, low in energy consumption, good in environmental compatibility and the like, and meanwhile subsequent high-valued comprehensive utilization can be conducted on lignin.

The invention relates to a thiourea-based aromatic porous organic polymer as well as a preparation method and application thereof, and belongs to the technical field of functional polymer adsorption materials. The preparation method comprises the following steps: respectively dissolving a plurality of ternary aromatic amine monomers with different electron pushing (electron donating) effects and cheap binary isothiocyanate monomers, mixing, uniformly shaking, and reacting to obtain a porous organic polymer network which is shown as organogel; and grinding the organogel into powder, then carrying out solvent exchange in dichloromethane, treating in methanol by using a Soxhlet extractor, and finally drying to obtain the product. The thiourea-based aromatic porous organic polymer provided by the invention has good adsorptive selectivity to Au, high adsorption capacity, wide pH adaptation range, good cyclic adsorption performance, simple preparation method and relatively high practical application value.

The invention discloses a quinonyl conjugated organic polymer photocatalyst as well as a preparation method and application thereof, and belongs to the technical field of preparation of photocatalyst materials. The quinonyl conjugated organic polymer photocatalyst disclosed by the invention is formed by imine bond connection formed by a phenanthrenequinone group-containing aldehyde monomer and an amine monomer through a Schiff base condensation reaction, and the photocatalytic efficiency is improved by constructing an electron donor block and an electron acceptor block to initiate a push-pull electron effect in a material. According to the photocatalyst, pure water and air are subjected to photocatalysis under the condition that a sacrificial agent is not needed, and hydrogen peroxide can be efficiently generated.

The invention provides a preparation method of an organic polymer photocatalyst and application of the organic polymer photocatalyst in the aspect of photocatalytic synthesis of nitric acid (HNO3) by directly taking nitrogen (N2) and oxygen (O2) as raw materials in water, and additional reagents do not need to be added. It is worthy of notice that the organic polymer photocatalyst (PyOP) shows excellent photocatalytic performance. When O2 is subjected to photocatalytic reduction, the yield of hydrogen peroxide (H2O2) reaches 10147.5 [mu] mol g <-1 > cat, and meanwhile, 672.8 [mu] mol g <-1 > cat of HNO3 can be synthesized by directly utilizing N2 and O2. The preparation method of the photocatalyst provided by the invention is simple, the raw materials are easy to obtain, the preparation cost is low, a metal-free photocatalytic platform only using H2O, N2 and O2 is constructed, and the photocatalyst is used for green and sustainable nitric acid production.

The invention relates to the technical field of water treatment, and discloses a silicon powder conditioner and a preparation method thereof, the silicon powder conditioner comprises 20-40% of an inorganic coagulant, 5-15% of an organic polymer coagulant, 3-10% of a natural polymer coagulant aid, 10-25% of a demulsifier, 2-8% of a synthetic coagulant aid, and the balance of water. The demulsifying agent is compounded with various coagulants and coagulant aids, the demulsifying agent preferentially destroys an oil-water interfacial film, releases wrapped silicon powder and eliminates the'colloid protection 'effect of oil stains on the surface of the silicon powder, and the inorganic and organic coagulants rapidly perform electrical neutralization and adsorption bridging on exposed silicon powder particles to form floc which is good in settling performance and easy to filter. Meanwhile, the inorganic coagulant provides positive charges and efficiently neutralizes the microfine silicon powder with negative charges; cPAM with high molecular weight and PDADMAC with strong cations form long-chain bridging and patching effects, so that fine particles with the particle size of 1-5 microns are specially captured, and meanwhile, larger-particle silicon powder is improved to form floc which is easy to filter; the natural polymer further increases the volume and density of the floc, and prevents the floc from being broken under shearing.

The application relates to an organic polymer for rapid detection and degradation of mercury ions, and belongs to the technical field of preparation and application of organic functional materials. The structural formula of the organic polymer is shown as formula (IV); the luminescence performance of the polymer is derived from a conjugated organic polymer skeleton, and the recognition function for mercury ions is derived from a sulfur hydrocarbon chain embedded in the organic polymer skeleton. The polymer has high chemical stability and thermal stability, and can be repeatedly used for multiple cycles. The organic polymer is used for detecting and degrading mercury ions, and has the advantages of simple operation, low cost, short detection and degradation time, real-time detection, field detection and the like, and is easy to popularize and apply.

The present invention discloses a covalent organic polymer fluorescent probe, and the preparation method is as follows: 2,7-dibromopyrene and 1,2,3,4,5,6-hexa(4-bromophenyl)benzene are added to an organic solvent to dissolve, a Ni(0) catalyst is added, and the reaction is heated overnight. After the reaction is completed, it is cooled to room temperature, an HCl aqueous solution is added, the resulting precipitate is filtered, and washed with an organic solvent to finally obtain the covalent organic polymer fluorescent probe. The fluorescent probe is synthesized by a nickel-catalyzed Yamamoto reaction, has a significant quenching effect on nitro explosives containing OH groups, can be observed with the naked eye to have a significant color change, has high sensitivity, and has a low detection limit; and has no significant response to nitro explosives containing OH groups. Therefore, this fluorescent probe can be used as a specific fluorescent probe for highly selective detection of nitro explosives containing OH groups.

The invention belongs to the field of functional porous materials, and particularly relates to novel N, S polycyclic aromatic hydrocarbon molecules and preparation thereof, preparation of porous organic porous polymer gel constructed by using the polycyclic aromatic hydrocarbon molecules and application of the porous organic porous polymer gel in photocatalytic water oxidation to generate hydrogen peroxide. The invention provides an N, S polycyclic aromatic hydrocarbon molecule which has a structural formula as shown in a formula I. The invention provides a novel N, S polycyclic aromatic hydrocarbon molecule and a synthesis method thereof. The porous organic polymer gel is synthesized by taking the porous organic polymer as a construction unit, and the synthesized gel has excellent processability and photoelectric activity, so that the gel shows an excellent rate of preparing hydrogen peroxide through photocatalytic water oxidation when being used as a photocatalytic material.

The invention relates to the technical field of display, and discloses application of an ultrahigh-luminous-efficiency perovskite quantum dot PC material to a mini module, and the application comprises the following steps: S1, synthesizing perovskite quantum dots: preparing the perovskite quantum dots through a thermal injection method in an inert gas environment; s2, anti-quenching treatment: coating the surface of the perovskite quantum dot with an anti-quenching layer, wherein the anti-quenching layer comprises an inorganic oxide shell layer or an organic polymer shell layer; s3, quantum dot dispersion: dispersing the perovskite quantum dots subjected to anti-quenching treatment in an organic solvent; s4, compounding the PC material; s5, carrying out patterning treatment; and S6, curing and forming. The quantum dot dispersion liquid is combined with the PC material, and the good mechanical property, chemical stability and high heat resistance of the PC material are utilized to provide a stable support matrix for the perovskite quantum dots, so that the composite material has the high luminous efficiency luminescence characteristic of the perovskite quantum dots and the practical performance of the PC material; and the dual requirements of the mini module on optical and physical properties of the material are met.

The invention discloses a phenazine-based electrochemical electrode material as well as a preparation method and application thereof. The phenazine-based electrochemical electrode material is an organic small molecule material or an organic polymer which contains nitrogen, has a conjugated structure and can be subjected to electrochemical oxidation-reduction reaction. The phenazine-based electrochemical electrode material disclosed by the invention can be applied to selective separation and extraction of ions, can be used for selective extraction and separation of target ions in a multi-ion complex solution, and can be used for extracting valuable element ions step by step at high performance; the extraction method has the advantages of high ion extraction capacity, low cost, simple process and high element separation and extraction efficiency, is environment-friendly, can realize efficient development and comprehensive utilization in the fields of salt lake resources, marine resources, industrial sewage and wastewater recycling, seawater desalination and the like, and has a better industrialization prospect.

The invention belongs to the technical field of photocatalysts, provides a structure, a preparation method and application of four novel organic polymer materials, and particularly relates to a preparation method and application of a perylene covalent triazine framework material. The preparation method mainly comprises the following steps: firstly, mixing monomers containing different functional groups and structures in different solvents, and synthesizing a polymer material through simple Sonogashira coupling reaction and Suzuki coupling reaction; secondly, performing Soxhlet extraction and purification on the four materials in a Soxhlet extractor to wash off impurities and unreacted monomers; according to the novel organic polymer material, triazine rings are introduced and form a more stable and prolonged D-A structure with pyrene and perylene functional group parts, intramolecular electron transfer of photon-generated carriers is promoted, compounding of the photon-generated carriers can be inhibited, and then the performance of the obtained material for photocatalytic water production of hydrogen peroxide is improved; meanwhile, the influence of introduction of different units on the performance of photocatalytic water production of hydrogen peroxide is compared.

The invention belongs to the technical field of electrochemical energy storage, and relates to a magnetron sputtering preparation method and application of a solid electrolyte hydrophobic interface layer. 2, depositing a hydrophobic coating, namely depositing the hydrophobic coating on one side surface or two side surfaces of the electrolyte matrix by adopting radio frequency magnetron sputtering to form a hydrophobic interface layer; the coating material of the hydrophobic coating comprises an organic polymer or an inorganic nano material, the organic polymer comprises PTFE (polytetrafluoroethylene), PDMS (polydimethylsiloxane) and FAS-17, and the inorganic nano material comprises Si3N4 and NiCrN; the compact and uniform hydrophobic coating is deposited on the surface of the garnet-type, sulfide-based or halide-based solid electrolyte membrane, so that the environmental stability and the interface electrochemical performance of the solid electrolyte material are remarkably improved, and the problems that the current solid electrolyte is easy to absorb moisture in air, unstable in structure, poor in interface contact and the like are effectively solved.

The invention relates to a preparation method of silver-coated mica powder, and belongs to the technical field of conductive powder materials, the silver-coated mica powder comprises modified mica powder and a silver coating layer coating the modified mica powder; wherein a silane coupling agent structure in the Schiff base polymer intermediate can react with hydroxyl on the surface of the mica powder, so that on one hand, the mica powder can be modified, and on the other hand, an organic polymer transition layer is formed on the surface of the mica powder; silver ions are enriched through sulfur and nitrogen multi-reaction active sites in a Schiff base polymer intermediate, so that an organic polymer transition layer and chelated silver ions can be stably attached to the surface of mica powder, and a compact coating layer is formed. And after high-temperature calcination, the silver elementary substance promotes the coating layer to be connected into a sheet through a metal bond between Ag and Ag, the mica powder can be completely coated, and the oxidation resistance of the silver-coated mica powder is improved.

The invention belongs to the field of two-dimensional material preparation, and particularly relates to a dry transfer method of a corner two-dimensional material. On one hand, introduction of impurities is avoided by adopting a plurality of organic polymers for assistance through a splitting step mechanism; on the other hand, by means of the mechanism that the two-dimensional material slides on the h-BN interface and does not exceed the plane geometrical shape of the h-BN interface, the two-dimensional material is locked on the h-BN geometrical interface through laser cutting, the probability that the two-dimensional material wrinkles, bubbles and slides in the transfer process is remarkably reduced, meanwhile, the internal stress of a system is reduced, and the mechanical performance of the system is improved. Therefore, the accuracy of the transfer angle of the corner two-dimensional material is improved; and the phenomena of slippage, traction and the like do not occur between the corner two-dimensional materials, lattice distortion is also weakened, and the quality of the corner two-dimensional materials is further improved. According to the method, reliable technical support is provided for constructing a high-quality strong-correlation physical platform, and the method can be widely applied to the fields of novel quantum devices and the like.

The invention discloses a multi-stage leaching purification method of a targeted therapeutic drug. The multi-stage leaching purification method comprises the following steps: sequentially filling an adsorption column with a porous organic polymer layer and an adsorption ball layer; controlling the flow rate of the leacheate and the column temperature for leaching, and setting an adsorption saturation threshold value; carrier gas is adopted to heat and desorb the porous polymer layer, and carrier gas components are switched to heat and desorb the adsorption ball layer; the method comprises the following steps: introducing carrier gas carrying iodine vapor into an alkaline absorption tower to treat waste gas, eluting impurities of adsorption balls by adopting an acidic mixed solution, and performing catalytic degradation by combining ultraviolet light; a chelating agent solution is used for regenerating adsorption balls, a silver salt solution is used for heavily loading silver ions, an organic solvent is used for eluting and regenerating a porous polymer, regular calibration and part replacement are conducted on a system, and organic pollutants and radionuclides in a matrix are difficult to treat synchronously through a traditional single-layer adsorption material; according to the leaching purification method, the generation amount of radioactive waste liquid is remarkably reduced, and meanwhile the shielding protection requirement of the follow-up purification step is reduced.

The invention relates to an oil-water separation membrane as well as a preparation method and application thereof, and belongs to the field of gas field brine pretreatment. The oil-water separation membrane comprises a nanofiber membrane substrate and an MOFs layer loaded on at least part of the surface of the nanofiber membrane substrate, and the MOFs layer comprises two-dimensional MOFs nanosheets; the nanofiber membrane substrate is prepared by performing electrospinning on three-dimensional MOFs and an organic polymer; the two-dimensional MOFs nanosheet is obtained by secondary growth on the surface of the nanofiber membrane substrate through hydrothermal recrystallization. The oil-water separation membrane can be used for efficiently separating petroleum pollutants and solid suspended matters in the oil and gas field produced wastewater, and can be coupled with an advanced oxidation process based on sulfate free radicals to realize synchronous and efficient removal of oil, suspended particles and organic matters in the oil and gas field produced wastewater.

The invention provides a photoelectric memory based on an organic polymer and a fluorinated perovskite material and a preparation method, the photoelectric memory is based on a bottom gate bottom contact field effect transistor structure, the memory comprises a gate layer, a dielectric layer, a source and drain layer and an active layer from bottom to top, the gate layer is made of silicon, the dielectric layer is made of silicon dioxide, and the active layer is made of silicon oxide. The source electrode and the drain electrode are made of gold, and the active layer is selected from one or more of PDVT-10, P (NDI2OD-T2) and a perovskite material which is subjected to surface ligand engineering treatment, namely fluoridation. The organic polymer with good electrical performance and the perovskite material with good optical performance are selected to be combined, so that the photoelectric memory shows good electrical performance and good time retention performance, and a high current ratio and high data retention capacity can be achieved.

The present invention discloses a photocatalyst for the regeneration of coenzyme NADH and a preparation method thereof, wherein the photocatalyst is a donor-π-acceptor type conjugated organic polymer, with a triazine-based ligand as an acceptor unit and a heterocyclic ligand as a donor unit, wherein the molar ratio of the triazine-based ligand to the heterocyclic ligand is 1:(1-2), the triazine-based ligand raw material selects 2,4,6-trimethyl-1,3,5-triazine, and the heterocyclic ligand raw material selects a heterocyclic diformaldehyde containing a furan or thiophene structure. The photocatalyst is prepared by a solvothermal method through a Knoevenagel aldol condensation reaction, the reaction solvent selects a mixed solvent of n-butanol and o-dichlorobenzene or a mixed solvent of mesitylene and 1,4-dioxane, and the catalyst used in the reaction selects at least one of trifluoroacetic acid, potassium hydroxide, 1,8-diazabicycloundecane-7-ene, sodium hydroxide, and cesium carbonate. The developed photocatalyst has a donor-π-acceptor type conjugated structure, and has high catalytic activity, high selectivity, good stability, and easy separation and recovery for the regeneration of coenzyme NADH.

The invention discloses a magnet vane for a magnetomotive generator set and a preparation method of the magnet vane, belongs to the technical field of magnet vanes, and aims to solve the problems that an existing magnet vane is prone to generating large eddy-current loss, and stress on the inner side and the outer side is unbalanced due to the fact that the layers of the novel magnet vane are arranged to be horizontal planes. Through the multi-layer composite structure of the supporting layer, the magnetic conductive layer and the diamagnetic layer, the total magnetic conductivity can be increased, an effective impedance matching interface can be formed, and through the arrangement of the inclined plane, the cooperation with the nanometer glue for bonding, the stress distribution and the laminating effect of the lamination are optimized, so that the lamination quality is improved. The wave-absorbing film is formed by compounding nanoscale magnetic particles and light organic polymers, the wave-absorbing performance is guaranteed, the weight of the magnetism isolating plate is greatly reduced, the requirement for light weight of electronic equipment is met, magnetic through holes are formed in the periphery of the magnetism isolating plate in a circular array mode, the forming area of the magnetic through holes is in a kidney shape and is increased from inside to outside, and the magnetic through holes are formed in the periphery of the magnetism isolating plate in a circular array mode. The magnetic through holes have ventilation and heat dissipation functions and directionally guide a magnetic field at the same time, and energy waste is reduced.

The compounds disclosed herein (e.g., compounds having a structure according to Formula (I), (II), (III), (IV), and (V)) are polymers wherein an organic polymeric segment (e.g., a polyethylene glycol (PEG) group) comprises covalent attachments to two or more lipid substructures, and each lipid substructure independently comprises a hydrophobic moiety and a hydrophilic moiety. The compounds provided herein can be useful for delivery and expression of mRNA and encoded protein, e.g., as a component of liposomal delivery vehicle, and accordingly can be useful for treating various diseases, disorders and conditions, such as those associated with deficiency of one or more proteins.

The present invention relates to the field of organic polymers. Specifically disclosed is a method for predicting the properties of grafted polypropylene for a high-voltage power cable. In the method of the present invention, a property prediction model for grafted polypropylene is constructed on the basis of a multi-layer perceptron model and a random forest model. The model solves the defect that a conventional machine learning model mainly relies on a large amount of data and is not suitable for a small data set. Experimental data is used to quantitatively establish a relationship between a grafted structure and mechanical properties, the amount of data required is small, the data is easy to obtain, and the prediction accuracy is high, thereby providing a reliable grafted group for a grafted polypropylene material used for a high-voltage power cable.

The subject of the invention is a particulate made of particles comprising biochar particles impregnated with a tannin binder. The invention also relates to shaped objects and building materials obtained from a composition comprising an organic polymer and particulates, as well as to methods and uses relating to said particulates.

The invention relates to the technical field of conductive functional coatings, and discloses a preparation method of a conductive antibacterial anti-corrosion anti-aging coating. According to the method disclosed by the invention, the silane coupling agent and the conductive filler are modified and then are co-hydrolyzed with the organic metal salt, so that the high-performance coating formed by bridging the conductive filler and the nanoparticles by an organic polymer chain is prepared, and the selected long-chain organic silicon modified silane coupling agent is used for improving the toughness and hydrophobicity of the coating; the adhesion and corrosion resistance of the coating are improved by introducing epoxy and dopamine structures, the aging resistance is improved by the nano particle effect of nano silicon dioxide and metal oxide, and the coating is endowed with conductivity by the conductive filler. The coating integrating multiple functions is prepared through co-hydrolysis of the organic silicon, the organic metal salt and the modified conductive filler, the defect that multiple functions of an existing coating cannot be considered at the same time is overcome, and the coating has important significance for widening the practical application of the coating.