150 results about "Crosslinked polymers" patented technology

The application discloses an impact-resistant mine protective clothing and belongs to the technical field of mine protective clothing. The mine protective clothing is provided with an impact-resistant protective layer, and the impact-resistant protective layer comprises alternately stacked and connected first and second functional layers. The outermost layer of the impact-resistant protective layer towards the outside of a wearer of the protective clothing is the first functional layer, the first functional layer is a composite material layer composed of aramid woven fabric and a second resin, the second resin is filled in the fiber gap of the aramid woven fabric as a continuous matrix and covers the fiber surface, the weaving raw material of the aramid woven fabric is aramid monofilament subjected to first resin impregnation pretreatment, the first and second resins are both thermosetting resins, the first resin comprises a first compound, the first compound contains a morpholine ring and is bonded in a crosslinking network of the first resin, and the second functional layer is a dynamic crosslinking polymer layer. Compared with the prior art, the application can not only resist impact and be hard, but also absorb impact force and reduce the risk of blunt injury of personnel.

A method for making a battery cell includes: disposing an electrode assembly within a battery can; assembling a top cap assembly to the battery can to form a battery cell having at least a first filling hole and a second filling hole; disposing a first portion of a liquid solution within the battery cell via the first filling hole, the liquid solution including an organic solvent, a cross-linkable polymer and a cross-linking agent; converting the first portion of the liquid solution into a first conductive layer disposed between the electrode assembly and the battery can; disposing a second portion of the liquid solution within the battery cell via the second filling hole; converting the second portion of the liquid solution into a second conductive layer disposed between the electrode assembly and the battery can; and filling the battery cell with a liquid electrolyte via an electrolyte filling hole.

This invention relates to the field of microbial fertilizer technology, specifically to a microbial compound phosphorus and potassium fertilizer that promotes nutrient absorption and its preparation method. The preparation method of a microbial compound phosphorus and potassium fertilizer that promotes nutrient absorption includes: preparing sunflower disc extract and Moringa leaf extract; preparing slow-release microcapsules; preparing microspheres loaded with bacteria; and preparing the compound phosphorus and potassium fertilizer. This invention first selectively oxidizes konjac glucomannan using sodium periodate, then crosslinks the oxidized konjac glucomannan with lignin under weakly acidic conditions to form a three-dimensional network crosslinked polymer framework. Urea and dipotassium hydrogen phosphate are encapsulated in the network channels or adsorbed onto the framework during the crosslinking process, forming nutrient-loaded slow-release microcapsules. After the slow-release microcapsules are made into a compound phosphorus and potassium fertilizer and applied, nutrients are gradually released as the crop grows, which helps improve nutrient absorption and utilization, thereby promoting nutrient absorption.

Disclosed is a core-shell microcapsule comprising a core containing at least one active ingredient, and comprising a shell, said shell constituting a wall around the core and representing a mass fraction of at least 20% of the total mass of the microcapsule, said microcapsule being characterized in that the shell comprises at least one crosslinked polymer, preferably obtained by interfacial polymerization. The size of the microcapsules is preferably less than 1 μm. The active ingredient can be a sunscreen.

A binder for a secondary battery positive electrode contains a carboxyl group-containing crosslinked polymer or a salt thereof, and a cellulose derivative.

The present invention relates to a gel-type polymer electrolyte, a lithium metal battery comprising same, and a method for manufacturing same and, more specifically, comprises: an organic solvent; a lithium salt; an additive; and a crosslinked polymer, wherein a current collector includes an organic phosphate, the lithium salt includes at least one of a borate-based lithium salt and a fluorine-based lithium salt, and the organic phosphate is a low-molecular compound having a molecular weight (Mw) of 100-400 g / mol and is dispersed in the organic solvent.

The present invention provides a novel composite polymer material with excellent mechanical properties, a method for producing the composite polymer material, and an optical material containing the composite polymer material. The composite polymer material of the present invention contains a crosslinked polymer formed by crosslinking a silicone-based polymer S having a polysiloxane backbone as a main chain with a polymer P having a backbone other than a polysiloxane backbone as a main chain, wherein host-guest interaction based on a host group and a guest group is formed between the silicone-based polymer S and the polymer P, and the host group is a monovalent group formed by removing one hydrogen atom or one hydroxy group from a cyclodextrin or a cyclodextrin derivative.

This invention discloses a solid electrolyte membrane, its preparation method, and its applications, relating to the field of solid-state battery technology. The solid electrolyte membrane provided by this invention comprises modified halide solid electrolyte particles and a cross-linked polymer network matrix. The modified halide solid electrolyte particles have a halide solid electrolyte core coated with an aluminum-oxygen coating layer, imparting environmental stability and high-voltage electrochemical stability to the particles. The cross-linked polymer network matrix constructs a three-dimensional interconnected structure, providing flexible mechanical support and additional ion transport channels. Therefore, the solid electrolyte membrane provided by this invention possesses high conductivity, high stability, and excellent cycling performance.

Provided is a composite thin film current collector for a battery or supercapacitor, the thin film comprising graphene sheets dispersed in or bonded by an electron-conducting polymer network (also referred to as conducting network polymer, crosslinked polymer, or hydrogel polymer) wherein the composite thin film has a thickness from 2 nm to 500 μm and an electrical conductivity from 10−4 to 104 S / cm and wherein the graphene sheets occupy from 10% to 99% by weight and the polymer network from 1% to 90% by weight of the total composite weight.

The application discloses a tannin acid-based epoxy resin and anticorrosive paint and relates to the technical field of paint. The tannin acid and the epoxy resin are combined through chemical reaction to generate a novel tannin acid-based epoxy resin. The tannin acid-based epoxy resin retains the function of generating chelate with iron rust, meanwhile, multiple epoxy structures in the structure generate thermosetting high-density crosslinked polymer structures after curing with a curing agent, the compactness of the paint film is greatly improved, the further corrosion of the corrosion medium is hindered, and the long-term effectiveness of the low-surface-treatment anticorrosive paint is ensured. Experimental results show that the adhesion of the tannin acid-based epoxy resin to the anticorrosive paint and the base material exceeds 13 MPa, and the neutral salt spray test reaches 4500 hours.

A kind of fast curing dimer fatty acid based polyurea resin and its preparation method, with dimer fatty acid as raw material, by reacting with glycidyl methacrylate to obtain intermediate, then the intermediate is added with a certain amount of phenylamine compound by amine addition reaction to obtain component A;Finally, the prepared component A is added to a certain proportion of isocyanate compound to obtain component B, and the obtained A / B two components are fast curing dimer fatty acid based polyurea resin.The dimer fatty acid based polyurea resin prepared by the patent can significantly reduce the reaction speed of conventional secondary amine and isocyanate group, increase the operable time, and effectively improve the usability of polyurea resin.At the same time, the cross-linked polymer containing amide bond, urea group and benzene ring in it has flexibility and rigidity, and can be used in the fields of road rapid repair, building surface spraying, etc.The dimer fatty acid based polyurea resin has abundant raw material sources, low cost, and belongs to renewable clean energy.The preparation process route is simple and feasible, the reaction condition is mild, and the application prospect is wide.

The present invention relates to a textile comprising textile fibers and a non-crosslinked polymeric binder that is insoluble in water, said polymeric binder comprising a solid polyelectrolyte complex formed of an anionic polyelectrolyte and a cationic polyelectrolyte. The invention also relates to a process for manufacturing such a textile and to a method for recycling such a textile.

This invention relates to a polymeric pipe, and more particularly a polymeric pipe wherein the pipe comprises a crosslinked polyolefin formed from extruded polyolefin comprising photoinitiator of formula (I) or formula (II):Also provided are methods of producing such cross-linked polymeric pipes. The pipes are intended to be used in cold (e.g. potable) or hot water applications. The pipes of the invention may be particularly suitable for cold water application, since they typically exceed all current standards for drinking water transmission.

The application discloses a catalyst for preparing beta-lactone by epoxide carbonylation and a preparation method and application thereof. The catalyst is composed of a homogeneous metal complex and a heterogeneous supported cobalt catalyst. The homogeneous metal complex is one of a porphyrin metal complex and a Schiff base metal complex. The heterogeneous supported cobalt catalyst is composed of a metal center and an organic phosphine ligand polymer connected with the metal center through a coordination bond. The metal center is cobalt, and the organic phosphine ligand polymer is a cross-linked polymer containing a repeating phosphine ligand unit. The metal center is connected with P atoms in the organic phosphine ligand polymer through a coordination bond. The cobalt center forms a stable coordination structure through a ligand, and the coordination layer of cobalt satisfies an electronic saturation state. The cobalt catalyst has high stability, is suitable for a fixed bed or a slurry bed reactor, is favorable for realizing continuous and stable operation of an epoxide carbonylation reaction, and has good industrial amplification potential.

The present application provides a suspension containing radioactive microspheres, a preparation method and application thereof. The radioactive microspheres include resin microspheres and a radionuclide loaded on the resin microspheres, the material of the resin microspheres includes at least one of polystyrene, polyethylene or polydivinylbenzene, or a crosslinked polymer thereof, the average particle size of the radioactive microspheres is 25-40 μm, and by controlling the non-spherical ratio of the radioactive microspheres within 5%, the distribution density of the microspheres in the tumor part is improved, the killing effect on the tumor is improved, and the incidence of adverse events is reduced.

The present disclosure provides methods for recovering reactive diluent components from 3D printed crosslinked polymeric materials. The reactive diluent components can be recovered either as hydroxyl-containing compounds cleaved from pendant ester groups attached to the polymer backbone, or as (meth)acrylate monomers by cleavage of the polymer backbone itself. The recovered hydroxyl-containing compounds and (meth)acrylate monomers can be reused for the fabrication of new medical devices by 3D printing.

This application discloses a composition, a composite material, a thin film, and an optoelectronic device. The composition includes one or more of a first quantum dot, a p-type organic compound, a monomer, and an initiator. The first quantum dot has no intrinsic emission peak when excited by light with a wavelength of 250 nm to 450 nm. The composition undergoes a cross-linking reaction under light irradiation and / or heat treatment to form a cross-linked polymer. The first quantum dot is dispersed in the network structure formed by the cross-linked polymer, and part of the cross-linked polymer can passivate the surface defect states of the first quantum dot, thereby reducing the number of defect states of the first quantum dot and effectively improving the phenomenon of first quantum dot aggregation.

The present disclosure provides a secondary battery, an electrical device, and a liquid-retaining material. The secondary battery comprises a liquid-retaining material and an electrolyte. The liquid-retaining material comprises a crosslinked polymer. The swelling ratio of the crosslinked polymer is 4-13, and the centrifugal electrolyte amount of the crosslinked polymer is 0.37-0.63 g / Ah. The electrolyte comprises an electrolyte in a gel and a liquid electrolyte. The secondary battery has improved liquid retention capacity, thereby reducing the likelihood of lithium plating in the battery and improving the cycling performance of the battery.

The application discloses a kind of multi-functional group dynamic crosslinking polymer preparation methods for perovskite photovoltaic device, comprising: end hydroxyl polydimethylsiloxane, diselenoic acid, dopamine, 4-dimethylaminopyridine, condensing agent and solvent.By the above mode, the multi-functional group dynamic crosslinking polymer preparation method for perovskite photovoltaic device of the application greatly improves the mechanical properties and photoelectric efficiency of perovskite photovoltaic device, and the environmental stability of perovskite photovoltaic device is also improved, and has self-repairing function, effectively prolongs service life.

This invention discloses an ethylene copolymer containing ethylene structural units derived from ethylene, α-olefin structural units derived from α-olefins, and conjugated diene structural units derived from conjugated dienes. The molar ratio of the ethylene structural units to the conjugated diene structural units is 2-10:1. Based on the total amount of the ethylene copolymer, the content of the conjugated diene structural units is 5-20 mol%. The ethylene copolymer also contains anti-1,4-structural units, which are structural units formed by 1,4-polymerization of the conjugated diene and possessing anti-1,4-double bonds. Based on the total amount of the conjugated diene structural units in the ethylene copolymer, the content of the anti-1,4-structural units is 10-50 mol%. The ethylene copolymer according to this invention exhibits good compatibility and co-vulcanization properties. The ethylene copolymer according to this invention has broad application prospects in the rubber industry, particularly in the field of automotive tire rubber.

This invention discloses a photoactivated nanoparticle-based drug delivery material for immunoadjuvants, its preparation method, and its applications. The drug delivery material is constructed from photosensitizer monomers, crosslinking monomers, and immunoadjuvant prodrug monomers within a confined space of a nanoemulsion via a copper-free click polymerization reaction to form crosslinked polymer nanoparticles. The nanoparticle size is controllable, and the composition is precisely defined. Under physiological conditions, the drug delivery material exhibits good colloidal stability and high drug loading. Upon near-infrared light irradiation, the generated ROS can cleave the thioketone bonds, causing the nanoparticles to depolymerize and achieving photo-triggered, controllable release of the immunoadjuvant. Under photodynamic action, this drug delivery material efficiently generates reactive oxygen species to induce immunogenic cell death in tumor cells. Simultaneously, the released immunoadjuvant activates the TLR7 / 8 pathway, promotes dendritic cell maturation, and enhances the systemic anti-tumor immune response, thereby inhibiting the growth of tumors in situ and at distant sites, and reducing the risk of metastasis and recurrence.

Disclosed is an efficacious, low-pH skin care composition that provides good sensory properties and has a low skin irritation potential. The low-pH composition includes an effective amount of a vitamin B3 compound and, optionally, one or more additional skin care actives to provide a skin health and / or appearance benefit. The low-pH composition also includes a pH buffer comprising lactic acid and sodium lactate, a polymer thickener comprising polyacrylate crosspolymer-6, and a silicone fluid having a kinematic viscosity of 100 cSt or less at 25° C. The pH of the low-pH composition can range from 2.0 to 5.0.

This invention provides a suspension containing radioactive microspheres, a method for preparing the same, and its applications. The radioactive microspheres comprise resin microspheres and a radionuclide loaded on the resin microspheres. The resin microspheres are made of at least one of polystyrene, polyethylene, or divinylbenzene, or a cross-linked polymer thereof. The average particle size of the radioactive microspheres is 25 μm to 40 μm. By controlling the non-spherical ratio of the radioactive microspheres to within 5%, the distribution density of the microspheres in the tumor region is increased, thereby enhancing the tumor-killing effect; furthermore, it can reduce the incidence of adverse events.

The present invention provides a class of high RI polysiloxane vinylic crosslinkers. The polysiloxane vinylic crosslinkers of the invention each comprise (1) a polysiloxane segment comprising dimethylsiloxane units and aryl-containing siloxane units each having one methyl substituent and one organic substituent having up to 45 carbon atoms and at least one aryl moiety connected to the Si atom through a linking group having at least 2 (preferably 3) carbon atoms; and (2) an ethylenically unsaturated group. The invention also provides an insert or a silicone hydrogel contact lens comprising a crosslinked polymeric material comprising repeat units of at least one of such high RI polysiloxane vinylic crosslinkers.

This invention discloses a high-performance composite solid electrolyte and its preparation method, belonging to the technical field of electrochemical energy storage and solid electrolyte materials. The solid electrolyte comprises a porous inorganic solid electrolyte framework layer with interconnected channels, a pore wall interface anchoring layer, and a cross-linked polymer network within the channels. The interface anchoring layer is formed by reacting a sulfur-containing silane coupling precursor on the pore wall surface and copolymerizing it with the cross-linked network to achieve pore wall fixation and covalent bridging. The cross-linked network contains polyether segments and fixed anionic structural units introduced by the polymerization of 4-styrenesulfonyltrifluoromethylsulfonylimide lithium monomer. The electrolyte membrane is prepared through framework preparation, pore wall layering, depressurized wetting, and curing, which can reduce solid-solid interface impedance and its growth, increase the lithium-ion migration ratio, reduce the risk of dendrite penetration, and improve cycle stability and safety.

The application discloses a synthesis method of super-crosslinked polymer, which comprises the following steps: putting FeCl3 solid into a reactor, and keeping the reactor in an oxygen-free and water-vapor-free state; adding a mixed solution of a substrate and a reactant into the reactor to carry out a first reaction, so as to obtain a first reaction product; adding methanol into the first reaction product to quench, and filtering the quenched product to obtain a second product; and carrying out washing and drying treatment on the second product, so as to obtain the super-crosslinked polymer; wherein the substrate comprises 2,7-di(n-carbazolyl)-9,9-difluorofluorene or 2,7-di(n-carbazolyl)-9,9-dimethylfluorene; and the reactant comprises dimethoxymethane or 1,4-dimethoxybenzene. The HCP material containing carbazole-fluorenyl in the application is a porous polymer containing N and F atoms, and is an effective CO2 adsorbent. The synthesis method of the material is proposed for the first time, and the material is applied to effective adsorption of CO2.