168 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 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 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 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 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 application belongs to the field of super-amphiphobic materials, and discloses a super-amphiphobic coated metal composite material based on a three-layer structure, which comprises, from bottom to top, a silanized metal substrate, an intermediate layer and a super-amphiphobic coating layer; the intermediate layer is formed by immersing and drying an emulsion of microcapsules dissolved in an organic polymer matrix solution, and the microcapsules are formed by wrapping photosensitizers and first SiO2 super-amphiphobic particles with a polymer matrix; the super-amphiphobic coating layer contains second SiO2 super-amphiphobic particles; the first SiO2 super-amphiphobic particles and the second SiO2 super-amphiphobic particles are nano-SiO2 modified by silane coupling agents and then modified by perfluoroalkyl silane. By introducing nano-SiO2 with low surface energy functional groups into the intermediate layer and the super-amphiphobic coating layer, and by designing the intermediate layer to be formed by drying microcapsules containing SiO2 super-amphiphobic particles dissolved in an organic polymer matrix solution, the surface of the composite material and the composite material after surface damage can still maintain the effects of being hydrophobic and oleophobic.

The invention relates to a polymer composition comprising a polyamide or polyester carrier polymer matrix in which special polymer particles are embedded, to a process for the preparation of this polymer composition, to the use thereof as laser inscription additive or laser welding additive in organic polymer compositions, and to a laser-inscribable or laser-weldable organic polymer composition comprising this polymer composition.

The application provides a perovskite superlattice, a preparation method and application in a nanoscale light emitting diode, and the preparation method comprises the following steps: S1, adding B raw materials, an organic ligand, a cosolvent and an organic polymer C into a solvent, and then heating in a vacuum environment to obtain a precursor 1; S2, adding A raw materials and a cosolvent into a solvent, and then heating in a vacuum to obtain a precursor 2; S3, heating the precursor 1 to a specified temperature in an inert gas atmosphere, mixing the precursor 2 with the precursor 1, and then reducing to room temperature at a set cooling rate, and then standing, centrifuging and cleaning to obtain a nanoscale perovskite superlattice; the organic polymer C is at least one of polymethyl methacrylate, low-density polyethylene, polyethylene, linear low-density polyethylene, polyvinylidene fluoride or isotactic polypropylene. The nanoscale light emitting diode has small size and high light emitting efficiency.

The application discloses a preparation method and application of a hydrophilic porous organic polymer based on fluoroborondipyrrin, and belongs to the technical field of photocatalytic materials. The application designs and prepares a hydrophilic porous organic polymer based on fluoroborondipyrrin by using a Friedel-Crafts reaction for cross-linking and modification after a sulfonation reaction, and modifies the hydrophilic porous organic polymer based on fluoroborondipyrrin by using a sulfonation modification strategy. The porous organic polymer after sulfonation has excellent hydrophilicity and photocatalytic performance, and can efficiently degrade organic pollutants in water. The application provides a high-performance porous organic polymer photocatalyst for degrading organic pollutants in wastewater, and provides a simple and feasible new method and new idea for design and development, performance improvement and practical application of photocatalysts.

The application belongs to the technical field of polymer materials and engineering, and discloses a preparation method of a phosphate cross-linked organic porous uranium extractant. A phenylacetylene is cross-linked with 1,4-dithioerythritol through a click chemistry reaction by using a photo-induced cross-linking method. Compared with common mercaptans, 1,4-dithioerythritol contains an adsorption group. The cross-linking reaction is carried out under the condition that the ratio is 1:3 and the light irradiation time is 1h. An organic polymer PCM with a porous structure is synthesized. After the synthesized polymer is subjected to Soxhlet extraction for 48h, the polymer is modified by phosphating with phosphorus oxychloride to prepare a porous polymer containing a phosphate group. After the synthesized polymer is subjected to Soxhlet extraction for 48h and is dried, a purple black powder P-PCM is obtained. The target polymer can be synthesized only through three steps of reactions. The polymer preparation is relatively simple under the photo-induced cross-linking, which is of great significance to improving the uranium adsorption capacity. The preparation is simple, the reaction is stable, the safety is high, and the cost is low through the click chemistry reaction.

The present application belongs to the technical field of self-repairing coating, and relates to a preparation method of a green photo-thermal super-hydrophobic self-repairing coating. The preparation method specifically comprises the following steps: step 1, polydopamine coating carbon black; step 2, carbon black silane modification; step 3, hybrid wall microcapsule preparation; step 4, silanized carbon black branch connection microcapsule; and step 5, mixed spraying. The present application synthesizes non-fluorinated low-surface-energy particles, adopts non-fluorinated super-hydrophobic carbon black branch connection modification microcapsule to prepare a photo-thermal super-hydrophobic self-repairing coating, the use of the non-fluorinated coating reduces cost and protects the environment; and the nano-composite coating is composed of nano-particle fillers and an organic polymer resin coating. In the coating, the branch connection carbon black endows the coating with excellent photo-thermal conversion capability to realize the deicing function, at the same time, the rupture of the microcapsule realizes the release of the dehydrated castor oil core material, and realizes the self-repairing of the damaged area of the coating, and the hydrophobic modification layer of the carbon black and the hybrid structure of the microcapsule together guarantee the super-hydrophobicity and durability of the coating.

The application discloses a guanidyl-sulfide covalent organic polymer for efficiently capturing iodine ions and a preparation method thereof, and relates to the technical field of iodine-containing wastewater treatment. The guanidyl-sulfide covalent organic polymer has a core structure of guanidyl and a sulfide group, and is formed by being connected through a strong covalent bond, and exhibits excellent chemical stability, thermal stability and radiation resistance, and is especially suitable for application requirements in extreme environments. Meanwhile, the unique N(+) cation in the guanidyl and the C-S-C bond in the sulfide cooperatively act, and the guanidyl-sulfide covalent organic polymer exhibits high removal efficiency and excellent selectivity for iodine ions in iodine-containing wastewater, and has a significant application prospect.

The invention discloses a crystalline polyaryletherketone-based porous nanoparticle composite membrane as well as a preparation method and application thereof, and belongs to the technical field of interface regulation and preparation of polymer composite membranes. According to the invention, a polyaryletheramine precursor containing a ketimine structure is converted into the polyaryletherketone composite material through a crystallization-induced shrinkage strategy; meanwhile, preparation of polyaryletherketone and interface recombination repair of polyaryletherketone and blended porous nano materials (such as a covalent organic framework material, a covalent organic polymer, a metal organic framework material, a hydrogen bond organic framework and the like) are realized. According to the preparation method, the problems that a polyaryletherketone material is difficult to form a film in a solution, the interface of the polyaryletherketone material and the nano material has defects and the like are fully solved, the composite film with excellent solvent resistance and separation performance is obtained by optimizing experimental conditions, and the composite film realizes uniform dispersion of the nano material on a PEEK substrate; the polymer has excellent thermal stability, solvent stability and separation performance, and has excellent development prospects in the fields of water treatment, dye separation, drug purification and the like.

One embodiment of the present invention provides a photodetector comprising a light-absorbing layer that is formed between an upper electrode and a lower electrode and contains a fluorine-based organic polymer and colloidal quantum dots. According to the embodiment, using the newly proposed light-absorbing layer enables reducing surface defects of the quantum dots in the photodetector while simultaneously improving operational stability.

The invention discloses a multi-carbon-source constructed carbon-coated ferric sodium pyrophosphate positive electrode material and a preparation method thereof, and belongs to the field of positive electrode materials. According to the material, a carbon coating layer formed by multiple carbon sources is constructed on the surface of a sodium ferric phosphate pyrophosphate positive electrode material, and the multiple carbon sources comprise an inorganic carbon source, an organic carbon source and small organic molecules; the preparation method comprises the following steps: (1) mixing an iron source, a sodium source and a multi-carbon source in a solvent, grinding, and spray-drying to obtain a spray material; and (2) sintering the spray material to obtain the product. According to the invention, through introduction of small organic molecules, inorganic carbon sources and organic carbon sources are bonded in a covalent bond form, so that an unstable carbon layer formed by simple physical interaction of the existing inorganic carbon sources and organic polymer carbon sources is broken, and the structural stability of the carbon coating layer in the circulation process is greatly improved. In addition, the formation of the interface covalent bonds can be used as an electron transmission path, and the electron transmission is accelerated, so that the electron conductivity of the positive electrode material is enhanced.

A magnetic shielding plate for a magnetic power generator set and its preparation method belong to the field of magnetic shielding plate technology. To address the problems of existing magnetic shielding plates easily generating large eddy current losses, and the uneven force distribution caused by the horizontal plane layering of this novel magnetic shielding plate, this invention utilizes a multi-layer composite structure of a support layer, a magnetically conductive layer, and an antimagnetic layer. This not only increases the total permeability but also forms an effective impedance matching interface. The inclined surface, combined with nano-adhesive bonding, optimizes the force distribution and the bonding effect of the stacked plates. The absorbing film is made of nano-scale magnetic particles and lightweight organic polymer composites, ensuring absorption performance and significantly reducing the weight of the magnetic shielding plate to meet the lightweight requirements of electronic devices. Through the opening of magnetic flux holes, the magnetic shielding plate has a circular array of magnetic flux holes around its perimeter, with the hole area being waist-shaped and increasing from the inside out. The magnetic flux holes provide ventilation and heat dissipation while directionally guiding the magnetic field, reducing energy waste.

The present application belongs to the technical field of wound dressing, and particularly relates to a multifunctional hydrogel precursor patch and a preparation method thereof. The patch is a fibrous hydrogel precursor obtained by chemical bonding of an organic polymer and a ferrocene derivative. The hydrogel precursor patch of the present application is triggered by exudate to form a 3D hydrogel in situ gelation, which is a wound healing strategy. No drug is needed, and no pre-crosslinking process of a solution-state matrix under acid-base, oxidation or light irradiation conditions is involved. In use, the solid patch is placed on the wound bed, and in a wet liquid environment, the sandwich structure ferrocene in the novel ferrocene-organic copolymer material promotes the rearrangement of the polymer chain through the "double-arm conjugation" effect, so that the irregular coil structure is mainly formed, the fluidity of the molecular chain is increased, and the hydrogel capacity is enhanced. In the gelation structure transformation process, the exudate is effectively absorbed in one direction, and the wound surface is kept clean.

The present application relates to the technical field of colorimetric detection and removal of heavy metals, and particularly relates to a preparation of porous organic material loaded with platinum nanoparticles and application of the porous organic material in colorimetric detection and removal of Hg 2+ The porous organic material comprises a porous organic polymer loaded with platinum nanoparticles, and the average particle size of the platinum nanoparticles is 2.65 nm; the porous organic material loaded with platinum nanoparticles provided by the present application has Hg 2+ activated oxyenzyme-like activity. Based on the Hg 2+ activated oxyenzyme-like activity, a method for colorimetric detection of Hg 2+ is constructed. The porous organic material can also remove Hg 2+ efficiently, and the removal rate is as high as 99.4%.

The invention belongs to the field of recycling of precious metal resources in environmental engineering, and particularly relates to a preparation method and application of an organic polymer sphere adsorbent. The amidoxime modified self-polymerized microporous polymer (AO-PIM-1) is prepared into the spherical adsorbent through a phase inversion method, and compared with other traditional adsorbents, the polymer sphere adsorbent is high in specific surface area and good in thermal stability and water stability and has a large number of functional groups with high combining capacity for Au ions. In a low-concentration Au solution, a good adsorption effect and excellent adsorption selectivity are still kept, and Au ions in electronic waste leachate can be well adsorbed and recycled.

This research focuses on the preparation and application of guanidine-based ionic porous organic polymers for gold extraction from water, belonging to the field of porous organic polymer materials. Four guanidine-based ionic covalent organic framework materials (Ionic-COF-X, X:Cl) with different counterions were synthesized by reacting ionic guanidine hydrochloride monomers as organic linkers with aromatic ring-substituted triazine derivative ligands (TFBT), followed by anion exchange. ‑ ,Br ‑ AcO ‑ and SO4 2‑ A guanidine-based porous ionic polymer material (PiP-1) was obtained by reacting an ionic guanidine hydrochloride monomer as an organic linker with an aromatic ring-substituted benzimidazole derivative ligand (BDBI). PiP-1 was then applied to the adsorption and removal of gold ions in solution. It exhibited extremely high saturation adsorption capacity, rapid adsorption kinetics, high selectivity, and recyclability, showing potential for gold adsorption in practical applications.

The invention discloses a preparation method of a porous aromatic framework material containing thiophene rings and adsorption application of sulfur dioxide and sulfur hexafluoride, and belongs to the technical field of porous organic material polymers. The porous organic polymer IMU-PAF-S with a high BET specific surface area is synthesized for the first time, and the S site of a thiophene ring in the material can effectively improve the adsorption capacity of SF6 and SO2. The obtained material has good thermal and chemical stability, the adsorption capacities of SF6 and SO2 at normal temperature and normal pressure (25 DEG C, 1 bar) reach 79.1 cm < 3 > g <-1 > and 333 cm < 3 > g <-1 >, and the highest record of the adsorption capacities of the two gases is created in the reported porous organic material. The porous aromatic framework material containing the thiophene ring provides a new thought for efficient adsorption of SF6 and SO2.

The invention provides a guanidyl-pyridine bridged porous organic polymer composite gas generating agent and a preparation method thereof, and the preparation method comprises the following steps: mixing a guanidyl derivative monomer, a pyridyl monomer and a first organic solvent, adding an organic alkali, and carrying out degassing treatment; degassing, and reacting at 120-150 DEG C to obtain a guanidyl-pyridine bridged porous organic polymer; dispersing in a second organic solvent, adding basic copper nitrate, stirring and carrying out ultrasonic treatment; and removing the second organic solvent to obtain powder, and tabletting and granulating to obtain the guanidyl-pyridine bridged porous organic polymer composite gas generating agent. A guanidyl functional group and a pyridine group are combined through a covalent bond to construct a porous organic polymer, integration of a fuel function and a coordination function is achieved, a solvent-pre-coordination strategy is combined, effective compounding of GBPOP and CuBN is achieved, and the prepared composite gas generating agent has high energy density and excellent combustion stability.

The invention relates to an ion migration device of a covalent organic framework nano-channel membrane based on an interface assembly strategy and application of the ion migration device, and belongs to the technical field of nano-channel ion transmission. The ion migration device comprises two conductance cells and a heterogeneous nano-channel film arranged between the two conductance cells. The heterogeneous nano-channel film comprises a first film layer and a second film layer which are stacked in sequence. The first thin film layer is an organic polymer thin film layer with a one-dimensional vertical pore channel structure, a one-dimensional vertical pore channel carries negative charges, and an organic polymer contains a porphyrin group; the second thin film layer is a graphene oxide / carboxymethyl chitosan composite thin film layer with a two-dimensional subnanometer channel structure, and a two-dimensional subnanometer channel is provided with negative charges. The heterogeneous nano-channel membrane has abundant surface groups, so that the ion migration device based on the heterogeneous nano-channel membrane has good application prospects in the fields of heavy metal ion screening and permeation energy conversion and in the fields of wastewater treatment and energy capture.