452 results about "Divinylbenzene" patented technology

Disclosed in the present invention are a rubber filler, a rubber composite material containing same, a preparation method therefor, and the use thereof. The rubber filler comprises polydivinylbenzene microspheres and polydopamine-modified white carbon black loaded onto the polydivinylbenzene microspheres, the mass ratio of the polydivinylbenzene microspheres to the polydopamine-modified white carbon black being 1:(0.5-20). The rubber composite material comprises raw rubber of a solution-polymerized rubber and the rubber filler, the dosage of the rubber filler being 10-60 wt% of the dry-basis mass of the raw rubber of the solution-polymerized rubber. The present invention uses as the filler the polydivinylbenzene microspheres onto which the polydopamine-modified white carbon black is loaded, thereby solving the problems that white carbon black is prone to agglomeration and the binding force between white carbon black and rubber is poor. The rubber composite material obtained by the present invention is suitable for manufacturing green tires.

According to one embodiment, a magnetic recording / reproducing device includes a housing which accommodates a magnetic recording medium, and a magnetic head which records or reproduces magnetic data relative the magnetic recording medium, and a synthetic adsorbent provided in the housing and containing a polystyrene-divinylbenzene copolymer.

The invention provides transparent high-impact-resistance heat-resistant MBS (methyl methacrylate-butadiene-styrene) resin and a preparation method thereof, and relates to the field of high polymer material preparation methods, the transparent high-impact-resistance heat-resistant MBS resin is prepared from the following raw materials: water, ethanol, maleic anhydride, an emulsifier, MBS resin grafted latex, potassium persulfate and an antioxidant; the MBS resin grafted latex is prepared from the following raw materials: water, modified styrene-butadiene latex, sodium hydrogen sulfite, potassium persulfate, methyl methacrylate and styrene, the modified styrene-butadiene latex is prepared from the following raw materials: a pre-emulsion, glycidyl methacrylate, ammonium persulfate, divinyl benzene and potassium persulfate; the pre-emulsion is prepared from the following raw materials: water, an emulsifier, butadiene and styrene. The product is good in heat resistance and good in PVC modification effect, and the modified PVC composite material is high in light transmittance, high in cantilever beam impact strength and resistant to aging.

To provide a resin composition that effectively increases glass transition temperature while maintaining electrical specifications with low dielectric constants.SOLUTION: A resin composition includes a first resin polymerized by a monomer mixture including styrene, divinylbenzene, and ethylene, a second resin including a bismaleimide-modified polyphenylene ether resin, a divinylbenzene crosslinking agent, a halogen-free flame retardant, a spherical silica, and a siloxane coupling agent.SELECTED DRAWING: None

The invention discloses a magnetic ion exchange resin and a preparation method thereof, and the preparation method comprises the following steps: preparing a reaction solution which comprises magnetic particles, glycidyl methacrylate, divinylbenzene and a photoinitiator; the mass ratio of the glycidyl methacrylate to the divinyl benzene is (4.5-10): 1; an ultraviolet-initiated polymerization step: irradiating the reaction solution by ultraviolet light to initiate a polymerization reaction to obtain magnetic microspheres; a functional modification step: mixing the magnetic microspheres with an ammoniation reagent for ammoniation reaction to prepare ammoniated magnetic microspheres; and mixing the ammoniated magnetic microspheres with an alkylation reagent, and carrying out an alkylation reaction to prepare the magnetic ion exchange resin. According to the method, the production time is remarkably shortened, the extra energy consumption is reduced, and the process production flow is effectively simplified.

The invention relates to the technical field of battery binders, in particular to a water-based binder, a preparation method of the water-based binder and a carbon-coated aluminum foil. The water-based binder comprises a water-soluble monomer, an oil-soluble monomer, an amphiphilic monomer, a functional monomer, an initiator and a neutralizer, the amphiphilic monomer is prepared from at least one of sodium vinyl sulfonate, sodium p-styrenesulfonate, 2-acrylamide-2-methylpropanesulfonic acid and N-vinyl pyrrolidone; the functional monomer comprises at least one of divinylbenzene, pyrrole, phenylacetylene and 3, 4-ethylenedioxythiophene. According to the water-based binder, the water-soluble monomer, the oil-soluble monomer, the amphiphilic monomer and the functional monomer are compounded in proportion, the conductivity of the binder, the wettability to a conductive carbon material and an aluminum foil, the adhesion to the aluminum foil and the like are improved, the prepared battery has excellent cycle stability, and the service life of the battery is prolonged.

The present invention relates to a monolithic bipolar membrane with a low transmembrane voltage and a preparation method thereof. The preparation method includes the following steps: preparing a membrane liquid with styrene and divinylbenzene; heating the membrane liquid, and then impregnating a polyolefin thin membrane; polymerizing an impregnated thin membrane and preparing a basement membrane; producing the basement membrane into a semi-anion membrane; additionally partially sulfonating and additionally quaternizing one side of the semi-anion membrane; then, soaking the bipolar membrane in a FeCl2 solution, transforming the bipolar membrane in an alkaline solution, and preparing the bipolar membrane. The present invention effectively reduces the transmembrane voltage, thereby being beneficial to reducing energy consumption.

The invention discloses a high-efficiency composite catalyst for waste gas purification and a use method thereof, belongs to the technical field of catalysts, and aims to solve the technical problems that a zeolite molecular sieve used as a VOCs catalyst in the prior art is high in hydrophilicity, easy to cause a catalyst poisoning phenomenon and low in adsorption efficiency. The method comprises the following steps; the preparation method comprises the following steps: mixing styrene, divinyl benzene, a hydrophobic metal catalyst and a polar monomer, adding a related auxiliary agent to obtain an oil phase, mixing the oil phase and a water phase, and carrying out post-process treatment to obtain the high-efficiency composite catalyst for waste gas purification. A zeolite molecular sieve is used as a carrier, a hydrophobic inorganic adsorption material is prepared through modification of a modified fluorine-containing silane coupling agent, then the hydrophobic inorganic adsorption material is soaked in a mixed transition metal oxide solution, and the hydrophobic metal catalyst is obtained and has the advantage of being high in catalytic efficiency.

The invention discloses a hydrophobic porous adsorption material for removing perfluorooctanoic acid in water and application of the hydrophobic porous adsorption material. The hydrophobic porous adsorption material is prepared by carrying out free radical polymerization reaction on an imidazolyl ionic liquid monomer and divinyl benzene. The hydrophobic porous adsorbent combines the advantages of good pore channel diffusion, electrostatic adsorption, hydrophobic interaction and the like, and shows excellent adsorption performance and extremely high adsorption rate under different initial concentrations of perfluorooctanoic acid. The adsorption material provided by the invention is simple in preparation method and low in cost, the adsorption performance of the adsorption material on the perfluorooctanoic acid is remarkably improved through the synergistic effect of multiple mechanisms, and the adsorption material is an effective scheme for efficiently removing the perfluorooctanoic acid.

The invention relates to the field of ion exchange resin, and discloses quaternary ammonium type anion exchange resin, a preparation method and application thereof, and a catalytic hydration reaction method of an epoxy-containing compound. The anion exchange resin comprises a resin matrix # imgabs 0 # and a quaternary ammonium group connected with the resin matrix # imgabs 1 # through an alkylene group; wherein the resin matrix # imgabs2 is a hydrogenated styrene-dienylbenzene copolymer, and the styrene-dienylbenzene copolymer contains a styrene structural unit as shown in a formula (1), a dienylbenzene structural unit as shown in a formula (2), a # imgabs3 # formula (1) and a # imgabs4 # formula (2); in the formula (1), R11 is alkyl or hydrogen, and R12 is alkyl or hydrogen; in the formula (2), n is an integer between 0 and 2. The quaternary ammonium type anion exchange resin provided by the invention has excellent swelling resistance.

The invention relates to a high-purity isopropanol purification method based on modified resin, which comprises the following steps: adding activated carbon into an isopropanol mixed solution, decolorizing the isopropanol mixed solution, carrying out primary impurity adsorption, and removing particulate matters and macromolecular impurities meeting activated carbon adsorption conditions in the isopropanol mixed solution. The method comprises the following steps: carrying out primary dehydration through a 4A molecular sieve, adding hydrogen-type strong-acid cation exchange resin and hydrogen-oxygen type strong-base anion exchange resin into an isopropanol mixed solution, and removing positive ions and negative ions in the isopropanol mixed solution; the macroporous alkalescence anion exchange resin of the styrene-divinylbenzene copolymer is added, so that the content of residual acid and alkali is lower than 10ppb. The ionic liquid is fixed on hydrogen type strong-acid cation exchange resin and hydrogen-oxygen type strong-base anion exchange resin, and alcohol, ketone and organic acid impurities are removed. And carrying out fractional rectification on the isopropanol mixed solution, and removing light and heavy components to obtain isopropanol with the purity not lower than 99.999%.

The invention discloses a rubber filler, a rubber composite material containing the same, and a preparation method and application of the rubber filler. The rubber filler disclosed by the invention is prepared from polydivinylbenzene microspheres and polydopamine modified white carbon black loaded on the polydivinylbenzene microspheres, wherein the mass ratio of the polydivinylbenzene microspheres to the polydopamine modified white carbon black is 1: (0.5-20). The rubber composite material provided by the invention comprises solution polymerized raw rubber and the rubber filler, wherein the addition amount of the rubber filler is 10-60wt% of the dry basis mass of the solution polymerized raw rubber. According to the invention, the polydopamine modified white carbon black loaded polydivinylbenzene microspheres are used as a filler, so that the problems that white carbon black is easy to agglomerate and the binding force between the white carbon black and rubber is poor are solved. The obtained rubber composite material can be suitable for manufacturing green tires.

The invention relates to the technical field of anion exchange, in particular to styrene anion resin for hydrometallurgy and a preparation method of the styrene anion resin. The preparation method of the anion resin comprises the following steps: polymerizing divinylbenzene serving as a cross-linking agent with styrene, then carrying out polymerization reaction with a pore-foaming agent, an initiator, a dispersing agent and the like to obtain styrene white balls, carrying out chlorination and amination, and then reacting with isocyanate pyridine for functionalization to obtain the styrene anion resin with functional groups. The adsorption capacity and the thermal stability of the anion resin on heavy metal ions are improved. Compared with the prior art, the anion resin prepared by the invention has strong adsorption capacity on heavy metal ions and good thermal stability.

The invention discloses a method for catalyzing melamino-formaldehyde resin methylation reaction by solid acid. According to the invention, epoxy silane coupling agent grafted modified nanocellulose is introduced into sulfonated styrene-divinyl benzene cross-linked copolymer microspheres for in-situ crystal cross-linking, so that the problems that the traditional sulfonated polystyrene resin is poor in mechanical strength and solution solubility resistance, low in cycle index, easy to swell and fall off and the like are effectively solved; the prepared solid acid resin has the characteristics of high reaction activity, high proton transfer rate, high mechanical strength, high cyclicity and easiness in solid-liquid separation, and by utilizing the solid acid resin to catalyze the etherification reaction of the melamino-formaldehyde resin, the reaction temperature and the production energy consumption are reduced, the reaction time is shortened, the product quality and the production efficiency are improved, and the production cost is reduced. The problems of environmental protection and energy consumption caused by the generation of a large amount of VOCs in the etherification reaction of the traditional liquid catalyst for synthesizing the high-etherified melamine formaldehyde resin and the by-product inorganic salt in the subsequent process are solved.

The invention discloses an imidazolyl polyionic liquid catalyst and a preparation method and application thereof, belonging to the technical field of five-membered cyclic carbonate synthesis. The invention polymerizes an imidazolyl polyionic liquid and divinylbenzene to obtain an imidazolyl polyionic liquid catalyst, and uses the catalyst to catalyze carbon dioxide and styrene to prepare styrene cyclic carbonate in one step. The imidazolyl polyionic liquid catalyst can efficiently convert styrene into styrene cyclic carbonate (the yield of styrene cyclic carbonate is greater than 70%), and the catalytic performance of the imidazolyl polyionic liquid catalyst is not significantly reduced after centrifugal separation and drying. The imidazolyl polyionic liquid catalyst provided by the invention has the advantages of high catalytic activity, simple separation, good circulation performance, no need for solvents and co-catalysts, etc.

The invention belongs to the technical field of functional resin, and particularly relates to macroporous adsorption resin for sugar decolorization and a preparation method and application thereof.The preparation method of the macroporous adsorption resin for sugar decolorization comprises the following steps that water, a dispersing agent and a polymerization inhibitor are mixed, and a water phase is obtained; mixing a monomer, an initiator and a pore-foaming agent to obtain an oil phase; mixing the water phase and the oil phase, standing, shaping, carrying out polymerization reaction, and removing the pore-foaming agent to obtain matrix white balls; the monomer comprises at least one of divinylbenzene, styrene and methyl acrylate; in the oil phase, the mass ratios of the monomer, the initiator and the pore-foaming agent are respectively 36.38%-41.5%, 0.34%-0.45% and 58.05%-63.19%; and mixing the matrix white balls and Lewis acid, and carrying out a post-crosslinking reaction to obtain the macroporous adsorption resin for sugar decoloration. The synthesis process is low in equipment requirement, simple and convenient to operate, low in cost and environment-friendly; and the prepared product has high decolorization rate and can be regenerated.

The invention relates to the field of gel materials, and discloses biomass gel and a preparation method and application thereof.The method comprises the steps that 1, in an inert atmosphere 1, in the presence of a mixed solvent 1, polyether, 2-acrylamide-2-methylpropanesulfonic acid, dimethylaminoethyl methacrylate, divinylbenzene and an initiator are subjected to a polymerization reaction, and an intermediate is obtained; (2) in an inert atmosphere 2, in the presence of a mixed solvent 2, carrying out a cross-linking reaction on the intermediate, a biomass raw material and a trivalent iron salt to obtain biomass gel; the biomass raw material is selected from at least one of alkali lignin, dealkalized lignin, sodium lignin sulfonate, calcium lignin sulfonate, tannic acid, cellulose and inulin; by adopting the method disclosed by the invention, the biomass gel which is resistant to high temperature and salt and is not easy to dissociate can be prepared.

The invention discloses a high-hydrophilicity macroporous microsphere and a preparation method thereof, and the preparation method comprises the following steps: firstly, preparing a polystyrene seed microsphere and swelling; styrene, divinyl benzene and vinyl ester monomers are added for a polymerization reaction, then alcoholysis is carried out, and macroporous microspheres with primary hydrophilic groups on the surfaces are obtained; and finally, modifying a secondary hydrophilic group to obtain the high-hydrophilicity macroporous microsphere. The high-hydrophilicity macroporous microsphere provided by the invention is excellent in comprehensive performance, the surface of the microsphere is completely covered with the high-hydrophilicity macroporous microsphere through primary and secondary hydrophilic groups, and the hydrophilic groups are directly connected with the microsphere through chemical bonds, so that the high-hydrophilicity macroporous microsphere has good stability and can effectively reduce non-specific adsorption of base spheres and improve the recovery rate of protein purification; the preparation method of the high-hydrophilicity macroporous microspheres provided by the invention is simple and efficient, has wide raw material sources, can be used for preparing fillers such as affinity chromatography fillers, ion chromatography fillers, composite mode chromatography fillers and the like, and has wide application prospects and good industrialization conditions.

A resin composition is disclosed. The resin composition includes 100 parts by weight of vinyl group-containing polyphenylene ether, 20 parts by weight to 60 parts by weight of ethylene-styrene-divinylbenzene copolymer, and 5 parts by weight to 15 parts by weight of a compound represented by the Formula (1). An article made from the composition is also disclosed, and the article includes prepreg, resin film, laminate, or printed circuit board.

The invention belongs to the field of pharmaceutic adjuvants, and particularly relates to a method for preparing sodium polystyrenesulfonate resin through a centrifugal interfacial membrane emulsification technology and application of the sodium polystyrenesulfonate resin. The method comprises the following steps: by taking a mixed solvent of styrene, divinylbenzene and benzoyl peroxide as a dispersion phase and a polyvinyl alcohol solution as a continuous phase, carrying out centrifugal interfacial membrane emulsification, then carrying out suspension polymerization reaction to obtain polystyrene-divinylbenzene microspheres with narrow particle size distribution, and finally, carrying out sulfonation reaction and alkali exchange to obtain the polystyrene-divinylbenzene composite microsphere. The final product sodium polystyrenesulfonate resin is obtained. The resin prepared by controlling the centrifugal rotating speed, the centrifugal time and the using amount of the dispersing agent, the cross-linking agent and the sulfonating agent and combining a centrifugal interfacial membrane emulsification technology is in a dry golden brown powder shape, the average particle size is 60-100 microns after the resin is dispersed in water, and particles of the resin are uniformly distributed and are of a spherical structure. Meanwhile, the preparation method is simple in preparation process, short in operation time, low in energy consumption, good in economic benefit, suitable for industrial production and wide in market application prospect.

The invention discloses zwitterionic concrete internal curing hydrogel based on humidity-pH dual responsiveness and a preparation method of the zwitterionic concrete internal curing hydrogel, and belongs to the technical field of building materials. The water-based cleaning agent is prepared from the following raw material components in percentage by weight: 6%-8% of N-vinyl imidazole, 8%-12% of 2-methylimidazole, 6%-8% of 2-acrylamido-2-methylpropanesulfonic acid, 2%-4% of sodium p-styrenesulfonate, 26%-30% of acrylic acid, 18%-21% of N-vinyl pyrrolidone, 15%-18% of glycidyl methacrylate, 2%-5% of nano montmorillonite powder, 0.05%-0.1% of divinyl benzene, 0.05%-0.15% of N, N-dimethylformamide and the balance of water. The invention discloses an anti-freezing agent which is prepared from the following components in percentage by weight: 0.1%-0.3% of N, N-methylene bisacrylamide, 0.1%-0.3% of 1-[4-(2-hydroxyethoxy)-phenyl]-2-hydroxy-2-methyl-1-propane-1-ketone, 0.5%-0.8% of ammonium persulfate and 0.5%-0.8% of sodium hydrogen sulfite. Double response to the internal humidity and pH value of the concrete can be achieved, and the requirement for precise internal curing of modern high-performance concrete is met.

The invention belongs to the technical field of high polymer material preparation, and discloses a solvent-resistant degradable super-hydrophobic polylactic acid fabric and a preparation method thereof. The solvent-resistant degradable super-hydrophobic polylactic acid fabric is prepared by the following steps: carrying out melt spinning on poly-L-lactic acid (PLLA) and poly-D-lactic acid (PDLA) to obtain stereocomplex polylactic acid fibers (sc-PLA), carrying out one-in-one-button plain weaving to form a degradable sc-PLA fabric, spraying a poly-divinylbenzene (PDVB) solution, and carrying out infrared irradiation treatment, so as to obtain the solvent-resistant degradable super-hydrophobic polylactic acid fabric. Enabling the fabric and the PDVB material to generate cross-linking reaction to obtain the super-hydrophobic fabric. The super-hydrophobic Sc-PLA fabric prepared by the method has the characteristic of high water contact angle, and meanwhile, the super-hydrophobic Sc-PLA fabric has excellent solvent resistance and high temperature resistance, can be completely biodegraded, and is an environment-friendly fabric.

The invention discloses a hydrophobic modified manganese-doped copper-based catalyst for preparing methanol through CO2 thermal reduction hydrogenation as well as a preparation method and application of the hydrophobic modified manganese-doped copper-based catalyst, and belongs to the technical field of catalysts. The preparation method of the catalyst comprises the following steps: mixing a metal salt mixed solution of a copper salt, a zinc salt, an aluminum salt and a manganese salt with an alkaline solution of a sodium salt, and controlling the pH value; heating, aging, standing and layering; washing the precipitate, drying and roasting to obtain a manganese-doped copper-based catalyst to be hydrophobically modified; the preparation method comprises the following steps: carrying out a hydrothermal reaction on divinyl benzene and a DMF solution of epoxy resin, washing and drying a white solid obtained by the reaction to obtain a hydrophobic material nano-porous polydivinyl benzene; the preparation method comprises the following steps: mixing a hydrophobic material and a manganese-doped copper-based catalyst to be hydrophobically modified, grinding, tabletting and forming to obtain the hydrophobically modified manganese-doped copper-based catalyst. The CO2 adsorption capacity of the catalyst is improved, the monatomic dispersion degree of the catalyst is promoted, and large-scale low-steric-hindrance hydrophobic modification of an active phase is realized.

The invention relates to preparation of metal-labeled plastic microspheres, and belongs to the technical field of high-molecular polymers. The preparation method comprises the following steps: firstly, preparing a polyacrylonitrile inner core by an emulsion polymerization method, adding rare metal salt into the polyacrylonitrile inner core while synthesizing the polyacrylonitrile inner core, slowly injecting styrene, a cross-linking agent divinyl benzene and a functional monomer into a system to form a carboxyl modified polystyrene outer shell, and carrying out heat treatment on the carboxyl modified polystyrene outer shell to obtain the high-performance polystyrene composite material. And thus, the metal-labeled carboxyl modified nano plastic microspheres are obtained. According to the preparation method disclosed by the invention, the rare metal is coated inside the acrylonitrile, and the crosslinking agent is used for enhancing the crosslinking degree of the styrene, so that the metal marker in the prepared metal-labeled nano-plastic microsphere is stable in combination and hardly leaks from the plastic microsphere, and the metal-labeled nano-plastic microsphere can be used for quantifying trace micro-plastic in the environment; the metal chelated polystyrene nanospheres prepared by the method are large in specific surface area and uniform in particle size.

The invention discloses a preparation method and application of an amine functionalized polyion liquid loaded metal organic framework material catalyst, and belongs to the field of green catalysis. According to the preparation method, amido on amine functionalized ionic liquid reacts with chloromethyl on MIL-101 (Cr)-CH2Cl through a covalent bond, the ionic liquid is grafted to an MOF structure, divinyl benzene is introduced, and a free radical polymerization reaction is carried out on the surface of MOF. The prepared catalyst has the advantages of the MOF material (Lewis acidic site and high specific surface area) and the ionic liquid (Lewis alkaline site and nucleophilic reagent site), the advantage that 1 + 1 is greater than 2 is realized, the product separation is simple, and the catalyst can efficiently and synergistically catalyze carbon dioxide and an epoxy compound to synthesize cyclic carbonate.

The invention provides a double-layer polyethylene film with antibacterial activity. The invention discloses a rare earth / chitin composite material which is prepared from the following materials in parts by mass: 8 to 15 parts of chitosan, 2 to 7 parts of sodium periodate, 2 to 6 parts of polyethylene glycol, 1 to 4 parts of tributyl citrate, 2 to 6 parts of divinyl benzene, 3 to 9 parts of rare earth / chitin mixture, 4 to 9 parts of phthalaldehyde, 2 to 7 parts of bacteriostatic agent, 100 to 140 parts of low-density polyethylene, 3 to 9 parts of carbon fiber and 9 to 14 parts of carbon black. The rare earth substances and the chitin have bacteriostatic effects and can be synergistically matched after being mixed, so that the bacteriostatic effect of the whole polyethylene film is improved, meanwhile, the bacteriostatic agent is added into the polyethylene film, and the bacteriostatic agent contains chitosan and has very good composite bacteriostatic performance, so that the polyethylene film has a good antibacterial effect. The bacteriostatic agent has good compatibility between low-density polyethylene matrixes, the bacteriostatic performance of the finished film can be effectively improved, and the film is good in environmental protection property and excellent in comprehensive performance.

The invention provides a collection and detection method for electronic cigarette atomized released substances, and belongs to the technical field of electronic cigarette detection. The method comprises the following steps: step 1, adsorbing and collecting aerosol release substances generated after atomization of electronic cigarette atomized liquid by using a solid-phase extraction column, wherein the solid-phase extraction column is filled with an adsorbing material polyethylene divinylbenzene; step 2, eluting the solid-phase extraction column after adsorption in the step 1 to obtain an eluent as a to-be-detected sample solution; and 3, detecting the content of a sweetening agent in the to-be-detected sample solution obtained in the step 2 by using a liquid chromatograph, and detecting the content of a cooling agent and a flavor substance in the to-be-detected sample solution by using a gas chromatograph-mass spectrometer. The method provided by the invention has very good trapping efficiency on substances with various phase states and pH values in aerosol release substances of the electronic cigarette, especially has a relatively strong adsorption effect on low-carbon ester and terpene flavor substances, improves the detection accuracy, and is suitable for simultaneous detection of various components in electronic cigarette products.

The invention belongs to the technical field of new energy materials and lithium ion batteries, and relates to a PVDF-HFP / LLZO composite solid electrolyte membrane, a preparation method and application of the PVDF-HFP / LLZO composite solid electrolyte membrane in a flexible electronic device. The composite solid electrolyte membrane disclosed by the invention comprises a matrix formed by PVDF-HFP (Polyvinylidene Fluoride-Hexafluoropropylene) nanofibers and LLZO (Likelike Likelike Zinc Oxide) particles, and a three-dimensional network structure formed by crosslinking DVB (Divinylbenzene) in the matrix, wherein SDS (Sodium Dodecyl Sulfate) is adsorbed on the surfaces of the LLZO particles. A flexible fiber scaffold structure is constructed through an electrostatic spinning process, and sodium dodecyl sulfate (SDS) is introduced into a precursor to carry out interface regulation and control treatment on the surface of an inorganic filler LLZO, so that the dispersity and wettability of the inorganic filler LLZO in a polymer matrix are improved; meanwhile, divinylbenzene (DVB) is introduced as a cross-linking monomer, and in-situ construction of a three-dimensional network structure is realized under a heat treatment condition, so that the mechanical stability and ionic conductivity of the membrane material are remarkably improved.

The invention provides a suspension containing radioactive microspheres as well as a preparation method and application of the suspension. The radioactive microsphere comprises a resin microsphere and radionuclide loaded on the resin microsphere, the material of the resin microsphere comprises at least one of polystyrene, polyethylene or polydivinylbenzene or a cross-linked polymer of the polystyrene, the polyethylene or the polydivinylbenzene, the average particle size of the radioactive microsphere is 25-40 [mu] m, and the non-spherical ratio of the radioactive microsphere is controlled within 5%. Therefore, the distribution density of the microspheres in the tumor part is improved, and the tumor killing effect is improved; in addition, the occurrence rate of adverse events can be reduced.

The invention relates to the technical field of catalysts, and provides a supported sulfonated polystyrene-divinylbenzene catalyst as well as a preparation method and application thereof. The preparation method of the catalyst comprises the following steps: carrying out hydrophobic modification on the surface of a carrier by adopting a silane coupling agent, then growing polystyrene-divinylbenzene on the modified carrier in situ, and carrying out sulfonation treatment to prepare the supported sulfonated polystyrene-divinylbenzene catalyst. The preparation method of the supported sulfonated polystyrene-divinylbenzene catalyst provided by the invention is simple, the utilization efficiency of resin can be improved, and the cost of the catalyst is reduced; the prepared catalyst is uniform in size, good in strength, not easy to crush, small in resistance and good in stability during liquid-phase flow catalytic continuous reaction, has good catalytic activity and high isosorbide yield when being used for catalyzing dehydration of sorbitol to prepare isosorbide, and can be recycled for multiple times.