57 results about "Polymer supported" patented technology

The invention relates to the technical field of membrane separation, in particular to a molybdenum disulfide composite membrane and a preparation method and application thereof. The problems that an existing polymer separation membrane is low in interface stability and insufficient in surface hydrophilicity, and in the compounding process of a two-dimensional nano material and the polymer separation membrane, the interface bonding force is weak, the material is prone to loss, and the hydrophilicity and the separation performance are difficult to synergistically improve are solved. The invention relates to a preparation method of a molybdenum disulfide composite film. The preparation method comprises the following steps: 1, depositing MoS2 / Zn (OH) 2 composite particles on a polymer supporting film; step 2, placing the membrane obtained in the step 1 in an organic ligand solution, generating ZIF-8 in composite particles through self-limiting in-situ conversion, and forming a MoS2 / ZIF-8 composite transition layer; 3, the membrane obtained in the step 2 makes contact with a polyethyleneimine solution for grafting, a polyamide layer is formed through interfacial polymerization reaction, and the composite membrane is obtained after curing. The structural stability and flux of the composite membrane are improved, and efficient and stable adsorption and separation of heavy metal ions are realized.

The present disclosure relates to electronic devices and methods of forming the same. A method and electronic device are disclosed. The method can be used to allow processing of a thin layer of a workpiece including a die. The workpiece can include a base substrate and a plurality of layers overlying the base substrate. The method can include forming a polymer support layer over the plurality of layers, thinning or removing the base substrate within a component region of the workpiece, where the component region includes an electronic device, and dicing the workpiece into a plurality of dies after thinning or removing the base substrate. In another aspect, the electronic device can be formed using such a method. In one embodiment, the workpiece can have a size corresponding to a semiconductor wafer to allow wafer-level processing rather than die-level processing.

An anion exchange membrane and a method for producing the same are disclosed. The anion exchange membrane comprises a porous polymer support; and an electrolyte containing an anion exchange polymer; wherein the electrolyte is located on the surface and in part within the pores of the porous polymer support; and the anion exchange polymer is also a crosslinking product of a composition containing a crosslinkable monomer represented by the following chemical formula 1 and an ionic monomer represented by the following chemical formula 2: JPEG2026516927000016.jpg56170 In chemical formulas 1 and 2, A, R1, R2, R3, R4, X - , Y - p, q, and r are as disclosed in the specification, respectively.

Provided is a carbon dioxide adsorbing / desorbing material having a high desorption rate.　This carbon dioxide adsorbing / desorbing material contains a carrier and an alkylene imine polymer supported on the carrier, wherein the alkylene imine polymer contains structural units (A) represented by general formula (1), has a number-average molecular weight (Mn) of 200-6000, and has a degree of branching of greater than 0% and no greater than 35%.

A heating plate (1) for the floor of a ship, comprising:-a metal base (3); a metal cover (2); -a polymeric support (4) arranged between the base (3) and the cover (2); -a heating element (5) adapted to generate heat upon energization and arranged between the polymeric support (4) and the cover (2); wherein the base (3) and the cover (2) form a hermetically sealed housing (10), in particular by means of a sealing material; wherein the polymer support (4) and the heating element (5) are arranged in the hermetically sealed housing (10); wherein the base (3) is provided with a peripheral side wall (31) extending laterally from a flat portion (30) of the base (3); the heating plate (1) comprises at least one temperature probe (6a, 6b) or at least one tube adapted to receive a temperature probe, passing through a corresponding first opening (36a, 36b) of the peripheral side wall (31); the respective first opening (36a, 36b) is completely blocked, in particular partially blocked by a respective temperature probe (6a, 6b) or by a respective tube and partially blocked by a sealing material.

The invention belongs to the technical field of membrane separation, and particularly discloses a preparation method of a high-flux pollution-resistant silver bromide / polyamide composite reverse osmosis membrane, which comprises the following steps: firstly, depositing a layer of silver bromide nanoparticles on the surface of a polymer porous support layer; then, m-phenylenediamine and trimesoyl chloride are subjected to an interfacial polymerization reaction on the surface of the porous supporting layer deposited with the silver bromide nanoparticles, and a silver bromide / polyamide composite separation layer is formed on the surface of the porous supporting layer; and finally, inducing the nano silver bromide in the composite separation layer to photolyze by utilizing illumination, forming nano pore channels in the separation layer and releasing silver nanoparticles, and preparing to obtain the high-flux pollution-resistant silver bromide / polyamide composite reverse osmosis membrane. According to the reverse osmosis membrane prepared by the method, the water yield can be remarkably increased while the relatively high desalination rate is maintained, and the reverse osmosis membrane has relatively high microbial pollution resistance.

The application discloses an integrated polybenzimidazole gradient membrane and a preparation method and application thereof. The preparation method comprises the following steps: applying a first solution containing polybenzimidazole, a polar solvent and a small-molecule sacrificial template to a substrate surface, removing the polar solvent, forming a dense small-molecule solvated polymer support layer, applying a second solution containing polybenzimidazole and a polar solvent to the surface of the small-molecule solvated polymer support layer, removing the polar solvent to form a screening layer, and fusing the small-molecule solvated polymer support layer and the screening layer to form an integrated structure, thereby obtaining an integrated polybenzimidazole membrane. In-situ etching treatment is performed to obtain an integrated polybenzimidazole gradient membrane. According to the application, a high-selectivity separation thin layer is constructed on the surface of the polymer support layer, the hydrophilic narrow ion channel size can ensure ion screening, the trade-off effect of conductivity and selectivity is broken through, and the membrane has high ion conductivity, high mechanical property, high ion selectivity and high stability.

The utility model discloses a jacquard shed machine, including casing and fixed on the casing ventilation device. The ventilation device has a fan and a support, the support defines an interior space that extends continuously from a first opening at a fixed portion to a second opening at a support portion. The fixed portion is fixed to the casing, and the first opening is aligned with the fan. A cylindrical filter is fixed to the support portion of the support. The cylindrical filter is located outside the interior space of the support and outside an enclosed operating space of the jacquard shed machine. The exterior of the jacquard shed machine is in fluid communication with the enclosed operating space through the cylindrical filter, through the second opening, through the interior space of the support, through the first opening, through a vent hole of the casing, and through the fan. The support is a molded polymer support. Thus, the jacquard shed machine has more efficient filtration performance, and the volume impact of the ventilation device is limited.

The present invention relates to a hollow fiber membrane, a manufacturing method therefor, and a fuel cell membrane humidifier comprising the hollow fiber membrane, the hollow fiber membrane comprising: a polymer support; and a metal-based antioxidant or a composite antioxidant comprising a metal-based antioxidant and an antioxidant adjuvant, wherein the metal-based antioxidant and / or the antioxidant adjuvant are dispersed in a non-crosslinked form in the polymer support, and the hollow fiber membrane selectively permeates moisture.

The invention discloses a preparation method of a super-crosslinked polymer supported chiral ferrocene catalyst, and belongs to the technical field of organic chemistry. The preparation method comprises the following steps: in an inert gas atmosphere, dissolving a ligand or a mixture containing the ligand and metal salt in a solvent, stirring at room temperature until the ligand or the mixture is dissolved, then adding an aryl-containing comonomer, and continuously stirring and dissolving to obtain a reaction solution; and adding Lewis acid or Bronsted acid, and carrying out Friedel-Crafts alkylation reaction to obtain the supported chiral ferrocene catalyst. Wherein the ligand is selected from a compound as shown in L1-L12. Compared with a previous covalent bond polymerization method, the loading scheme has the advantages that the catalyst does not need to be modified, and the loading scheme has relatively large application potential aiming at a series of aromatic ring-containing micromolecular catalysts and has the advantages of simplicity, high efficiency and relatively good universality.

The present invention relates to a porous water electrolysis separation membrane using a boron nitride compound. More specifically, the porous water electrolysis separation membrane comprises a porous polymer support and a boron nitride compound inserted into the inside of the porous polymer support or formed on a surface thereof. The water electrolysis separation membrane according to the present invention as described above exhibits excellent heat resistance and stability and has smaller pore sizes, thereby reducing the permeability of hydrogen and oxygen and achieving high hydrogen gas purity. In addition, with a reduced thickness, the water electrolysis separation membrane exhibits low sheet resistance and thus increases current density to improve electrolytic cell efficiency.

The application discloses a method for preparing a large-area MOF film by using a double polymer and the large-area MOF film, and the MOF film comprises a polymer support body, a ultrafiltration membrane and a polydimethylsiloxane coating layer, the coating layer completely or incompletely covers one side surface of the ultrafiltration membrane; a MOF metal-organic framework is assembled on the polymer support body; the method comprises the following operations: soaking one side of the polydimethylsiloxane coating layer of the polymer support body in a dispersion liquid to deposit a cross-linked polymer network layer; soaking one side of the ultrafiltration membrane in a ligand solution to perform ligand back diffusion and assemble a MOF metal-organic framework on the cross-linked polymer network layer; and the dispersion liquid comprises polyvinyl alcohol, polyvinylamine, a metal salt and a solvent. The preparation method can realize the preparation of a large-area ultra-thin continuous MOF film with an area greater than 100 cm 2 , and the MOF film has good C3H6 / C3H8 separation performance.

The invention belongs to the technical field of electronic paper display structures, and particularly relates to a nested electrophoretic display structure. Comprising an electrophoresis display module, the electrophoresis display module comprises a liner frame, a pixel electrode, an upper-layer flexible transparent substrate and an electrophoresis layer, the electrophoresis layer is arranged between the pixel electrode and the upper-layer flexible transparent substrate, and the liner frame is located on the pixel electrode and located on the peripheral side of the electrophoresis layer; the electrophoresis layer comprises a transparent porous polymer support, and a dichroic electrophoretic particle electrophoresis liquid system is arranged in holes of the transparent porous polymer support; an upper-layer transparent electrode is arranged between the upper-layer flexible transparent base material and the electrophoresis layer, conductive silver paste is arranged on the liner frame, and the upper-layer transparent electrode is in contact with the electrophoresis layer and the conductive silver paste. The chemical process problem that microcapsules in traditional electronic paper are complex in preparation and poor in stability is solved, the production efficiency is improved, and the manufacturing cost is reduced.

The invention discloses a conductive graphene composite nanofiltration membrane with electric response performance and a preparation method thereof, and belongs to the technical field of graphene nanofiltration membrane materials, and the preparation method comprises the following steps: 1) dispersing reduced graphene oxide nanosheet dispersion liquid and glycine modified graphene oxide nanosheet dispersion liquid in a solvent to form mixed dispersion liquid; 2) loading the mixed dispersion liquid on the surface of a polymer support membrane through vacuum filtration to form a nanofiltration separation layer; and 3) drying the nanofiltration separation layer to obtain the conductive graphene composite nanofiltration membrane with electric response performance. And 4) applying an external voltage in the process of testing the electrical response separation performance of the conductive graphene composite nanofiltration membrane. According to the prepared conductive graphene composite nanofiltration membrane, the electrostatic repulsion effect of the conductive graphene composite nanofiltration membrane on SO4 < 2-> is enhanced, and the transmembrane energy barrier of Na < + > is reduced to promote faster collaborative transmission of Cl <->, so that good Cl / SO4 < 2-> separation performance is realized.

The present invention relates to a lithium-ion secondary battery comprising a cathode, an anode, and a separator arranged between the cathode and the anode; the cathode comprising a current collector C' and a layer C comprising a first active material, a conductive agent and a first binder; the anode comprising a current collector A' and a layer A comprising a second active material and a second binder; the separator comprising either a porous polymer support S and a coating SC arranged on the porous support S, or a solid electrolyte comprising a coating SC, characterised in that the first binder L1, the second binder L2 and the coating SC each comprise at least one polymer P having a solubility greater than 0.01 g / ml at room temperature in a solvent S1 having a donor number greater than 4 kcal / mol.

The application discloses a kind of high-efficiency interception polyvalent anion and cation nanofiltration membrane and its preparation method and application.The method includes the following preparation process:1) preparation concentration is 0.1-2wt% of apigenin class of substance aqueous solution, and concentration is 0.1-0.5wt% of multi-acid chloride organic phase solution;2) make polymer support membrane in aqueous solution 1-5min, remove the surface excess solution, then immerse into oil phase solution, react 1-15min;3) after reaction, remove the surface excess solution, solidify 5-20min under 60-80 DEG C, obtain the nanofiltration membrane.The application is with apigenin, apigenin-7-o-glucuronide and / or isofraxidin as aqueous monomer, and multi-acid chloride is prepared by interfacial polymerization reaction to obtain negative NF membrane, not only maintain the high interception rate to polyvalent anion, and also have very high interception rate to polyvalent cation, can efficiently permeate monovalent ion, and water flux is larger.

The application discloses a negative-electrode-free sodium battery diaphragm, a preparation method and application thereof, and relates to the technical field of negative-electrode-free sodium batteries. The application forms a sandwich structure by using a positive electrode side polymer layer, a heat conduction layer and a negative electrode side polymer layer, introduces polyolefin elastomer POE into the negative electrode side polymer layer, enhances the elasticity of the diaphragm, buffers the expansion and contraction of the negative electrode side in the charging and discharging process, guarantees the close adhesion of the interface, the heat conduction layer quickly conducts heat, reduces the interface side reaction caused by the heat accumulation, avoids the loss of elasticity of the elastic layer due to high temperature aging, and the positive electrode side polymer support layer guarantees the overall mechanical strength, avoids the deformation of the diaphragm in the cycle process, and prevents the short circuit condition. The sandwich structure can effectively solve the core problems of the interface buffer adhesion and the low heat dissipation efficiency of the negative-electrode-free battery, provide sufficient mechanical strength to prevent the deformation of the diaphragm and the short circuit of the battery, and can simultaneously improve the expansion buffer effect, the heat dissipation capacity, the electrochemical performance and the gas production inhibition effect.

Provided are: a negative electrode for a lithium secondary battery; a method for manufacturing same; and a lithium secondary battery including same. The negative electrode comprises: a current collector; and a protective layer disposed on one surface of the current collector, wherein the protective layer includes a polymer support and a lithiophilic material, and has a concentration gradient region in which the concentration of the lithiophilic material progressively increases in a direction from one side of the protective layer on which the current collector is disposed toward the other side of the protective layer on which the current collector is not disposed.

The invention discloses a method for assembling an artificial synaptic memristive device based on a self-supporting single crystal oxide film and the artificial synaptic memristive device. Comprising the following steps: (1) sequentially epitaxially depositing a water-soluble sacrificial layer, a lower-layer film and an upper-layer film on a single-crystal epitaxial substrate, and loading an Au / Ti top electrode on the surface of the upper-layer film; (2) stripping from the epitaxial substrate through a wet stripping technology to obtain a substrate-free artificial synaptic memristor precursor; and (3) directionally transferring the conductive substrate-deficient artificial synaptic memristive device precursor to a conductive substrate by using a flexible high-molecular polymer supporting layer, and then performing annealing treatment to obtain the artificial synaptic memristive device. The artificial synaptic memristive device provided by the invention realizes the assembly of the self-supporting single crystal oxide film and the target conductive substrate, has a simple structure and good resistance change performance, can simulate the plasticity of nerve synapse, and can realize the functions of PPF promotion, long-term LTP enhancement and long-term LTD inhibition of paired pulses under the stimulation of a plurality of continuous positive and negative pulses.

The application discloses a kind of MXene / PTC composite current collector and its preparation method and application, belong to new energy battery key material and intelligent monitoring technical field, intelligent perception composite current collector includes polymer support base film and functional conductive sensing layer;The functional conductive sensing layer is by two-dimensional layered Ti3C2T x The MXene material, the conductive particles with the positive temperature coefficient effect and the polymer binder are compounded.The application utilizes the unique two-dimensional interlayer spacing pressure-sensitive characteristic of MXene and the thermal resistance mutation characteristic of PTC material, so that the current collector has the electronic bus function, can in-situ perceive the battery pole piece expansion pressure and carry out blocking response to local overheating.The design realizes the decoupling monitoring of multiple physical fields in the battery, solves the technical problem that the traditional current collector has single function and cannot perceive internal state.

The application discloses a high-enthalpy flexible phase change material and a preparation method and application thereof, and relates to the technical field of high polymer composite materials.The preparation method comprises the following steps: taking maleic anhydride as a grafting agent, and polyolefin thermoplastic elastomer as a grafting object to prepare a grafting modified thermoplastic elastomer; adding a crosslinking agent and a phase change material into the grafting modified thermoplastic elastomer, and melt blending to obtain the high-enthalpy flexible phase change material.The preparation method has the following advantages: more excellent flexibility, the three-dimensional crosslinking network is constructed through the introduction of anhydride-ester dynamic bond, and the organic solid-liquid phase change material is reinforced and toughened; high energy storage density; the introduction of the crosslinking network enables the polymer support structure to better coat the phase change material, and the content of the phase change material is ensured, that is, the high energy storage density is provided.

A system to differentiate between a vent condition and a leakage condition of electrolyte vapors released from a battery pack is disclosed. The system comprises a sensing element having a polymer support to detect a concentration of the electrolyte vapors, a heating element positioned and configured to heat the polymer support of the sensing element to evaporate electrolyte from the polymer support, at least one processor communicatively coupled with the sensing element and the heating element to activate and subsequently deactivate the heating element for an amount of time, determine the vent condition when the concentration of the electrolyte vapors exceeds a threshold level within a predefined time interval after the deactivation of the heating element, determine the leakage condition when the concentration of the electrolyte vapors does not exceed the threshold level within the predefined time interval.

The present invention relates to an ultrafiltration membrane for removing viruses and bacteria, and a manufacturing method therefor, and, more specifically, to an ultrafiltration membrane for removing viruses and bacteria, comprising: (a) a porous polymer support membrane; and (b) a cross-linked and positively-charged coating layer formed on both the internal pores and the surface of the porous polymer support membrane. The ultrafiltration membrane has excellent disinfection and turbidity removal performance and can be applied as a viral and bacterial filter.

The invention belongs to the technical field of polymer composite materials, and particularly relates to a preparation method and application of an acellular matrix imitating polymer composite membrane with a double-layer structure. The composite membrane is composed of three layers which are a polymer supporting layer, a gel layer rich in hyaluronic acid and protein and a functional layer containing various active ingredients in sequence, the thickness of the polymer supporting layer is 100 + / -5 [mu] m, the mass ratio of hyaluronic acid to protein of the gel layer is 1: 1, the thickness of the gel layer is 200 + / -10 [mu] m (w / w), and the thickness of the functional coating is 10 + / -3 [mu] m. The tensile strength of the bionic acellular matrix polymer composite membrane is up to 50 MPa, the elongation at break is 300% or above, the bionic acellular matrix polymer composite membrane is remarkably improved compared with an existing two-layer acellular matrix polymer composite membrane, and operability and biodegradability are comparable with those of the existing two-layer acellular matrix polymer composite membrane.

The present application relates to a polymer film (FILM 1) for a release liner (REL1), comprising a polymer support layer (S1) of a first composition comprising one or more polyolefins and / or polyesters, and an extruded primer layer (PRIM1) of a second composition comprising a thermoplastic polymer covalently bound to functional vinyl groups.

The present invention relates to a hollow fiber membrane for a fuel cell membrane humidifier, a method for manufacturing same, and a fuel cell membrane humidifier comprising the hollow fiber membrane, the hollow fiber membrane comprising a polymer support and an amine-based antioxidant having a molecular weight of 1000 or less, wherein the amine-based antioxidant is included in the polymer support in a non-crosslinked form.

The application discloses a two-dimensional material wet transfer method based on adhesive tape, which is used for transferring two-dimensional material grown on a first substrate to a second substrate, and comprises the following steps: (1) forming a polymer support layer on the surface of the two-dimensional material; (2) attaching a heat release adhesive tape to the surface of the polymer support layer; (3) peeling the structure as a whole from the first substrate by treating with a strong alkaline solution; (4) after soaking in deionized water and drying, attaching to the second substrate, and heating to make the heat release adhesive tape separate; (5) attaching a peeling adhesive tape to the surface of the polymer support layer, and then tearing off the peeling adhesive tape to make the polymer support layer peel off from the surface of the two-dimensional material. The heat release adhesive tape is first introduced into the polymer support layer removal process in the wet transfer of the two-dimensional material, the polymer support layer is removed through mechanical peeling, the problem of polymer residue caused by long-time soaking in traditional acetone is avoided, and clean interface and excellent electrical and optical properties are obtained.

The present invention relates to methods for synthesizing peptides and related compounds supported on solid polymer resins. The method of the present invention provides a synthesis scheme that can enable coupling of two or more peptide fragments attached to the same polymer support in a manner that allows obtaining previously unobtainable structures, and provides a more convenient and higher yield method for known peptides, including those of commercial significance.

The invention discloses a polyamide composite membrane with a carbon nano tube as a middle layer as well as a preparation method and application of the polyamide composite membrane, and belongs to the technical field of water treatment. The polyamide composite membrane sequentially comprises a microporous polymer supporting layer, a carbon nanotube middle layer and a polyamide active layer from bottom to top, the carbon nanotube middle layer is of a three-dimensional interwoven network structure loaded on the surface of the supporting layer through vacuum filtration; the polyamide active layer is formed by m-phenylenediamine and trimesoyl chloride through an interfacial polymerization reaction. According to the preparation method disclosed by the invention, collaborative optimization of the thickness, the crosslinking degree and the surface roughness of the polyamide active layer is realized by regulating and controlling the loading capacity of the carbon nanotubes, so that the crosslinking degree is remarkably improved while the thickness of the polyamide layer is reduced, and the problem that the permeability and the selectivity of a traditional forward osmosis membrane are difficult to consider at the same time is solved from the structural level. The polyamide composite membrane prepared by the invention has excellent water flux and interception performance in a forward osmosis mode, and can be widely applied to the fields of sewage and wastewater treatment, seawater desalination, resource recovery and the like.

A composite current collector (10), an electrode sheet (20), a secondary battery, and an electrical apparatus (6) are provided. The composite current collector (10) includes a polymer support layer (11), an adhesive layer (12), and a conductive layer (13). The adhesive layer (12) is disposed on at least one surface of the polymer support layer (11), and the adhesive layer (12) includes polyimide, inorganic particles, and a binder. The conductive layer (13) is disposed on a surface of the adhesive layer (12) facing away from the polymer support layer (11). The composite current collector (10) of this application has relatively high elongation at break and tensile modulus, and is resistant to wrinkling or shrinking in a tab region of the electrode sheet (20) after an active material layer (21) is applied and dried.