107 results about "Polystyrene microsphere" patented technology

The invention relates to the technical field of lithium batteries, in particular to a preparation method of a positive plate and a battery comprising the positive plate. The invention discloses a positive plate preparation method and a battery comprising the positive plate, and the positive plate preparation method comprises the following steps: firstly, pre-mixing a pretreated NCM811 positive plate material, a composite conductive agent composed of super conductive carbon black and the like, and hydroxyl-containing modified polyvinylidene fluoride in proportion, adding polystyrene microspheres to prepare a slurry, coating a modified aluminum foil with the slurry, and carrying out vacuum drying to obtain a positive plate; performing segmented drying, gradient rolling and the like to obtain a positive plate; and finally, winding, packaging and injecting liquid according to the sequence of the positive plate, the diaphragm treated by dopamine and the negative plate, standing and forming to obtain the battery, and mainly improving the performances of conductivity, interface stability, low-temperature discharge and the like.

The invention discloses a preparation method of a composite phase change material, a thermal-insulation and antibacterial fabric and a preparation method thereof, and belongs to the field of functional textile fabrics and preparation thereof. The composite phase change material provided by the invention can be applied as a coating finishing component, and the preparation method comprises the following steps: taking polystyrene microspheres as a core, and forming a composite precursor through dopamine self-polymerization coating; and compounding the composite precursor with a layered double-metal hydroxide, and calcining to obtain the carbon microsphere supported layered double-metal oxide material with a hollow structure, and mixing the carbon microsphere supported layered bimetal oxide material with paraffin, and loading to obtain the carbon microsphere supported layered bimetal oxide material. The textile fiber fabric provided by the invention has excellent thermal insulation and antibacterial characteristics, is good in comfort, and has wide application prospects in industrial production and clothing application.

The invention relates to the technical field of micro-fluidic chips, and discloses a multi-fluid effect synergistic three-dimensional single-row focusing micro-fluidic chip and a method for single-line focusing of polystyrene microspheres by using the micro-fluidic chip, the micro-fluidic chip comprises a sample liquid inlet, one end of the sample liquid inlet is provided with an inertia focusing link, and the other end of the sample liquid inlet is provided with an inertia focusing link; a tapered flow guide cone structure is arranged between the inertial focusing link and the sample liquid inlet and is used for inhibiting the initial dispersion and diffusion trend of particles at the sample liquid inlet; the bionic gradient height structure is positioned at one end, far away from the tapered flow guide cone structure, of the inertial focusing link and is used for focusing and compressing the particles in the vertical direction; a sheath fluid focusing area is arranged at one end, far away from the inertial focusing link, of the bionic gradient height structure, and a sheath fluid inlet and a chip mixed liquid outlet are sequentially formed in one end, far away from the bionic gradient height structure, of the sheath fluid focusing area. According to the invention, efficient three-dimensional centered arrangement is realized, dynamic convergence of a particle trajectory from a dispersion state to a central single beam is realized, and a digital focusing regulation capability is realized.

The invention discloses a preparation method and application of high-sensitivity and high-stability time-resolved fluorescent microspheres, and relates to the technical field of immunochromatography. The preparation method comprises the following steps: (1) preparing high-stability high-carboxyl-density polystyrene microspheres; (2) preparing a high-stability europium ion chelate; and (3) preparing the high-stability fluorescent microspheres. Through a strategy of combining functional monomer copolymerization and surface covalent labeling, the fluorescent microspheres which are connected through strong covalent bonds from inside to outside and are high in stability and carboxyl density are constructed; obvious differential advantages and innovativeness are shown in the aspects of chemical stability, anti-leakage capability of fluorescent markers and surface functional group density. A time-resolved fluorescent microsphere test strip developed based on the microspheres has the advantages of good stability, high detection sensitivity and the like, and can realize rapid detection and analysis of a substance to be detected.

The application discloses a kind of " sandwich type " crosslinked polystyrene analysis magnetic beads based on swelling and layer-by-layer assembly and its preparation method and application, the preparation method of magnetic bead is: with carboxylated crosslinked polystyrene microspheres as template, Fe3O4 is loaded to the microsphere template of swelling and forms microsphere assembly;Then in containing PEI poor solvent, assemble oleic acid modified hydrophobic Fe3O4;After that, microsphere assembly is phase transfer from organic phase to water phase, then grow silica shell layer, finally sequentially modified and carboxylated by amino, obtain carboxylated " sandwich type " crosslinked polystyrene analysis magnetic bead.The application uses carboxylated crosslinked polystyrene microspheres as template, loads Fe3O4 particle by swelling method and layer-by-layer self-assembly method, realizes biocompatibility by microsphere outer package silicon, provides a kind of analysis magnetic bead with uniform size, fast magnetic separation speed, slow settling time, good biocompatibility, good detection performance, applied to the detection combined with ELISA has good technical effect.

The invention discloses a white polyester film for compounding building decoration materials and a preparation method and application of the white polyester film for compounding the building decoration materials. The white polyester film is of a three-layer co-extrusion structure and comprises a core layer and two surface layers, comprising the following components in percentage by mass: 8%-20% of polystyrene microspheres with the particle size of 0.5-10 microns, 50%-70% of PET polyester chips with the titanium dioxide content of 3000ppm and 20%-40% of PET polyester chips with the silicon dioxide content of 150000ppm. The surface layer A is a low-gloss surface layer and comprises the following components in percentage by mass: 50%-70% of PET polyester chips with the silicon dioxide content of 30000 ppm and 30%-50% of PET polyester chips with the silicon dioxide content of 15000 ppm; and the surface layer C comprises the following components in percentage by mass: 10%-40% of PET polyester chips with the silicon dioxide content of 30000 ppm and 60%-90% of PET polyester chips. The white polyester film has a good shaping effect after being compounded and stamped with the plate, and does not yellow after being irradiated by a UV lamp for 60 hours.

The invention provides a multicolor flow-based synaptic heterogeneity analysis device and analysis method and application thereof, the analysis device comprises: (1) a scattering-resolution pretreatment module: adopting a BD FACS fusion double laser platform, firstly positioning an FSC-SSC coordinate by using a standard 0.5 m polystyrene microsphere, and then loading a synaptic body; the adopted sheath fluid comprises HPMC (Hydroxymethyl Methacrylate)-3cp and 1 * PBS (Phosphate Buffer Solution) without Ca < 2 + > / Mg < 2 + >; an adopted carrier buffer solution comprises EDTA (Ethylene Diamine Tetraacetic Acid), a 1 * protease inhibitor mixture and 1 * PBS (Phosphate Buffer Solution) without Ca < 2 + > / Mg < 2 + >; and (2) a multi-color flow type synchronous marking-sorting module which is used for detecting two kinds of code fluorescent marks in parallel on double laser platforms of 488 nm and 561 nm, eliminating cross color by a logic gate-double exponential decay compensation algorithm, and realizing transmitter and function sorting.

The invention relates to a glycosylated hemoglobin HbA1c freeze-drying detection reagent and a preparation method and application thereof.The preparation method comprises the steps that surface aminated polystyrene microspheres are prepared through an emulsion polymerization method, then double bonds are introduced through Schiff base reaction and methylacrolein reaction, and the glycosylated hemoglobin HbA1c freeze-drying detection reagent is obtained. Then preparing anionic polystyrene microspheres with hydrophilic chains through free radical polymerization, and preparing freeze-dried powder of the HbA1c detection reagent R1 by adopting the anionic polystyrene microspheres; the preparation method comprises the following steps: preparing a hydrophilic cross-linking agent 2, 5-bis (2, 4-dihydroxy-6-formylphenoxy) terephthalaldehyde, then carrying out a Schiff base reaction on the hydrophilic cross-linking agent 2, 5-bis (2, 4-dihydroxy-6-formylphenoxy) terephthalaldehyde and HbA1c mAb to prepare an HbA1c oligomer, and preparing the HbA1c detection reagent R2 freeze-dried powder by using the HbA1c oligomer. The glycosylated hemoglobin HbA1c freeze-drying detection reagent prepared by the invention has the advantages of high antigen binding efficiency, excellent detection sensitivity, sufficient retention of antibody activity and strong detection specificity.

The application relates to the field of sewage treatment, and discloses a sulfur autotrophic denitrification biofilter composite filler and a preparation method thereof. The method comprises the following steps: carrying out a silane hydrolysis reaction on a silane coupling agent containing a mercaptan group to prepare a hydrolysis solution, and then adding hydroxylated polystyrene microspheres into the hydrolysis solution to carry out a grafting reaction and prepare the sulfur autotrophic denitrification biofilter composite filler. The method grafts mercaptan groups to the surface of the polystyrene microspheres by using the silane coupling agent containing the mercaptan group. The mercaptan groups can specifically combine with sulfur transport proteins on the cell membrane of sulfur autotrophic denitrification microorganisms, so that the sulfur autotrophic denitrification microorganisms can selectively colonize on the surface of the polystyrene microspheres, competition between other microorganisms and the sulfur autotrophic microorganisms can be avoided, the colonization stability of the sulfur autotrophic microorganisms is improved, and the biofilm formation efficiency is improved.

The application discloses a preparation method of a three-dimensional ordered metal oxide inverse opal photonic crystal film. The method comprises the following steps: mixing polystyrene microspheres and corresponding solvents in proportion to obtain a microsphere emulsion for standby; under constant temperature environment conditions, a vertical deposition self-assembly method is adopted to obtain a large-area ordered photonic crystal template on a substrate, wherein by adjusting the mass of glycerol, the cracking phenomenon of the template can be reduced; on the basis of the photonic crystal template, a metal precursor solution is filled into the template pores, the template microspheres are removed, and finally an inverse opal photonic crystal film containing periodically arranged holes is obtained. The application can be used for the preparation of templates and inverse opals of all sizes of PS balls. The prepared photonic crystal template has the advantages of few structural defects, high ordered arrangement, low method cost, high repeatability and strong applicability, and the prepared high-quality photonic crystal film has stable structural color.

The invention provides a nanocellulose styrene composite emulsion and application thereof in air filter paper, and relates to the technical field of functional paper preparation. According to the method, a nanocellulose solution is introduced into an oil phase containing styrene to be emulsified, the high-stability nanocellulose styrene composite emulsion is prepared, and the stability of the nanocellulose styrene composite emulsion is improved from two aspects: firstly, nanocellulose forms a compact covering layer on the surface of a liquid drop, so that demulsification fusion is prevented; and 2, a complex three-dimensional network structure in which fibers and liquid drops are mutually crosslinked is constructed by regulating and controlling the volume ratio of a water phase to an oil phase. After the emulsion is coated on the surface of the filtering base paper and is dried, styrene is subjected to in-situ polymerization in the drying process to form polystyrene microspheres, and firm bonding is generated between fibers and nano cellulose, so that the bonding force between a coating layer and the base paper is remarkably enhanced. The dry / wet tensile strength and bursting strength of the air filter paper prepared by the method are remarkably improved, and the overall stability is excellent.

The invention belongs to the field of micro-nano structures, and relates to a double-layer gold nanopore structure supported by a nano needle tip as well as a preparation method and application of the double-layer gold nanopore structure. According to the preparation method, the double-layer gold nanopore structure supported by the nano needle tip is obtained through an electron beam thermal evaporation system, a polystyrene microsphere self-assembly technology and reactive ion etching (RIE), the preparation process is simple, the cost is low, the repeatability is good, the structural stability is good, and the tolerance is high. Compared with a single-layer gold nanopore structure, the single-layer gold nanopore structure not only has more modes, but also presents complex multi-mode response dependent on pumping wavelength.

The invention relates to the technical field of preparation of micro-nano adsorption materials, in particular to a magnetic porous microsphere for in-vitro diagnosis and a preparation method of the magnetic porous microsphere. The invention discloses a preparation method of magnetic porous microspheres for in-vitro diagnosis. The preparation method comprises the following steps: S1, preparing polystyrene-based spheres; s2, preparing porous polystyrene microspheres; s3, preparing magnetic composite microspheres; s4, constructing a porous silicon dioxide middle layer; and S5, introduction of a surface functionalized layer: polymerizing a monomer containing a functional group on the surface of the composite microsphere coated with a layer of porous silicon dioxide through a monomer swelling polymerization method, so as to introduce a functionalized polymer layer on the surface of the microsphere and in a porous channel, thereby obtaining the magnetic porous microsphere for in vitro diagnosis. The prepared magnetic porous microspheres are low in settling velocity, good in magnetic separation efficiency, good in monodispersity, uniform in particle size distribution, high in magnetic content, high in surface functional group content and wide in application scene.

The invention discloses a composite solid electrolyte membrane with a three-dimensional network structure and a preparation method thereof, and the preparation method comprises the following steps: (1) immersing a silicon wafer into a polystyrene microsphere emulsion, and carrying out deposition and calcination to obtain a SiO2 inverse opal template; (2) adding the SiO2 inverse opal template into the oxide solid electrolyte precursor solution for infiltration, drying and calcining to obtain an oxide / SiO2 composite framework; (3) removing the SiO2 template in the oxide / SiO2 composite skeleton, washing and drying the SiO2-removed composite skeleton, immersing the SiO2-removed composite skeleton into a silane hydrolysate for reaction, and washing and drying to obtain a three-dimensional oxide solid electrolyte skeleton of which the surface is modified with-OH groups; and (4) immersing the three-dimensional oxide solid electrolyte skeleton of which the surface is modified with the-OH group into the polymer electrolyte precursor solution for infiltration, and drying and curing to obtain the composite solid electrolyte membrane with a three-dimensional network structure. The composite solid electrolyte membrane can improve the ionic conductivity and the cycle performance.

The invention provides spatial layered porous titanium dioxide as well as a preparation method and application thereof. The preparation method of the spatial layered porous titanium dioxide comprises the following steps: S1, mixing a carbohydrate carbon source, an organic solvent and water, carrying out hydrothermal reaction, centrifuging, washing and drying to obtain carbon spheres; s2, styrene, water, polyvinylpyrrolidone and potassium persulfate are mixed, heated and stirred, and polystyrene microsphere emulsion is prepared; s3, dispersing carbon spheres in a solvent to prepare a carbon sphere dispersion liquid; s4, under the vacuum filtration condition, dispensing and assembling the carbon sphere dispersion liquid and / or the polystyrene microsphere emulsion to form a hard template with a spatial sequence structure; and S5, completely infiltrating the hard template with TiCl4, and sequentially drying and calcining to obtain the spatial layered porous titanium dioxide. The spatial layered porous titanium dioxide disclosed by the invention shows excellent photocatalytic reaction performance, and has relatively high CO selectivity during photocatalytic reduction of carbon dioxide.

The invention belongs to the technical field of amino acid production, and discloses a method for separating and purifying glutamic acid, which comprises the following steps: separating and purifying a glutamic acid crude product by using a weak cation exchanger to obtain a medicinal glutamic acid refined product; the weak cation exchanger is functionalized polystyrene microspheres, and the glutamic acid crude product contains heteroamino acid. The method can effectively separate and remove heteroamino acid, is simple in process and low in cost, and completely meets the standard of medicinal glutamic acid.

The invention provides a delayed UV curing packaging adhesive for an OLED (Organic Light Emitting Diode) display panel, the OLED display panel and a manufacturing method of the OLED display panel. The delayed UV curing packaging adhesive for the OLED display panel comprises the following components in parts by weight: 40-70 parts of glycidyl ether epoxy resin; 1 to 10 parts of oxetane resin; 30 to 50 parts of a nano-scale filling material; 0.1 to 1 part of a defoaming agent; 0.1 to 2 parts of a photoinitiator; 0.1 to 2 parts of a dispersant; 0.1 to 5 parts of PS (polystyrene) microspheres; and 0.1-1 part of an organic delayed curing agent. The organic delayed curing agent is used for reducing the viscosity of the delayed UV curing packaging adhesive for the OLED display panel after UV pre-curing, so that the viscosity of the delayed UV curing packaging adhesive for the OLED display panel after UV pre-curing operation in the pressing and fixing operation process is 400 P.S to 1600 P.S. The delayed UV curing packaging adhesive for the OLED display panel not only can prevent external water, oxygen or pollutants from entering the box dam structure, but also can prevent the fill adhesive from overflowing from the box dam structure.

The application relates to the technical field of adsorbing silica gel, and discloses a preparation method of high-porosity adsorbing silica gel. In the application, styrene, acrylic acid and a modified crosslinking agent are polymerized to obtain modified polystyrene microspheres; the silicon hydroxyl generated by hydrolysis of triethoxysilyl in a silane coupling agent type quaternary phosphonium salt and the carboxyl on the surface of the modified polystyrene microspheres are subjected to a dehydration condensation reaction to obtain quaternary phosphonium salt grafted modified polystyrene microspheres; the quaternary phosphonium salt grafted modified polystyrene microspheres are used as sacrificial space-occupying templates; and a sol-gel process is combined to synchronously construct a double-stage hierarchical pore structure, so that the porosity of the adsorbing silica gel is improved.

The present application belongs to the technical field of glycosylation detection and analysis, and particularly relates to a serum glycosylation flow analysis method based on lectin affinity. The present application enriches target molecules in a sample to be measured by coupling a polystyrene microsphere with a decoy molecule, and then incubates the polystyrene microsphere with a fluorescently labeled lectin, and directly analyzes the glycosylation information of the target molecules by a flow cytometer. In the present application, the decoy molecule of the target protein is coupled to the polystyrene microsphere to enrich the target protein, and the target protein is focused for subsequent analysis, which can effectively reduce the field of view and improve the specificity. After the lectin is combined with the target protein, the fluorescence analysis of the flow cytometry is directly performed, which can effectively reduce the damage of the washing operation to the affinity of the lectin, and thus overcomes the weakness of the weak affinity between the lectin and the sugar chain. Moreover, only a small amount of sample is required to realize the analysis of multiple lectins, and the washing-free real-time analysis can be realized, which provides a new way for the analysis of glycosylation by using lectin, and has important potential application value.

The invention relates to the technical field of methane-hydrogen sulfide reforming, in particular to a preparation method and application of a molybdenum-based catalytic material for methane-hydrogen sulfide reforming. The preparation method comprises the following steps: S1, calcining nano gamma aluminum oxide; s2, treating the calcined nano gamma aluminum oxide with a sodium citrate solution; s3, the polystyrene microspheres are treated through dodecyl trimethyl ammonium bromide; s4, combining the nano gamma aluminum oxide treated in the step S2 with the polystyrene microspheres treated in the step S3; s5, adding ammonium molybdate tetrahydrate, metal salt and the nano gamma aluminum oxide assembled in the step S3 into deionized water to obtain a precursor; s6, calcining and grinding the precursor obtained in the step S5 to obtain a primary catalytic material; and S7, vulcanizing the primary catalytic material obtained in the step S6 to obtain the catalytic material. The catalytic material prepared in the invention has high activity and high methane conversion efficiency.

The invention relates to low-heat-generation tread resin and a preparation method and application thereof.The low-heat-generation tread resin is of a core-shell structure and comprises an inner core and a long-chain structure wrapping the surface of the inner core, the inner core comprises polystyrene microspheres, and the long-chain structure comprises a trimethylsilyl methyl sulfide bond modified polybutadiene chain segment. The low-heat-generation tread resin is used for preparing a tread rubber material, and through the unique core-shell molecule design and multiple reaction sites, the dispersity of white carbon black can be effectively improved, a rubber-filler interface can be reinforced, and internal friction and energy dissipation of the interior of the rubber material during dynamic deformation are reduced; and the rolling resistance can be effectively reduced, the wear resistance is improved, and the good wet skid resistance is maintained, so that the tire prepared from the tread rubber material has the advantages of safety, durability and economical efficiency.

The application discloses a copper ion removing and detecting reagent based on cluster luminescent polymer microspheres, a preparation method and application thereof, and the reagent is obtained by sulfonating monodisperse porous cross-linked polystyrene microspheres, and the reagent is used for removing and specifically detecting copper ions. The one-step sulfonating monodisperse porous cross-linked polystyrene microsphere method is used to prepare the copper ion removing and detecting reagent based on cluster luminescent polymer microspheres. The polymer fluorescent microspheres based on cluster luminescence have excellent detection capacity for copper ions. Meanwhile, the sulfonic acid groups after the sulfonation treatment make the polymer microspheres have excellent copper ion removing capacity. The application provides a new method for copper ion detection and removal, and the new method has the advantages of simple operation, economy and good stability.

This invention discloses a cation-cavity-dynamic covalent nanonetwork functional synergistic microring, its preparation method, and its application, belonging to the field of biomedical materials. The microring has an anisotropic ring structure with a positively charged inner wall and an environmentally responsive polyphenolic dynamic covalent nanonetwork grafted onto the outer wall. The inner wall enables electrostatic capture and physical confinement of bacteria, while the outer wall enables broad-spectrum adhesion and antibacterial effects, synergistically achieving integrated functions of capture, antibacterial, and anti-inflammatory. The preparation method uses polystyrene (PS) microspheres as seeds to obtain a Patchy template, which is then coated with silica, amino-functionalized, grafted with a dynamic covalent nanonetwork, and the template is removed and purified to obtain the target microring. The process is mild, the structure is uniform, and the biocompatibility is excellent. The microring of this invention has high capture and bactericidal efficiency against common clinical pathogens and significant antioxidant and anti-inflammatory effects. It can be used in the research and development of drugs for the treatment of bacterial infection-related inflammatory diseases, providing a novel carrier and technical direction for antibacterial and anti-infective biomedical materials.

The application discloses a kind of spherical porous silicon-carbon composite material and its preparation method and application, belong to lithium ion battery material preparation technical field.The preparation method of the spherical porous silicon-carbon composite material includes: polystyrene microsphere is added to resin solution, and adding scandium-metal organic framework composite material is uniformly dispersed, carbonization is carried out after drying at 700-900 DEG C, 1050-1250 DEG C steam activation, obtain porous carbon material, then transfer to fluidized bed, and heated to 400-600 DEG C, pass into silane mixed gas, under negative pressure condition deposition 30-300 min, pass into heteroatom gas passivation, deposition amorphous carbon by vapor deposition method, obtain silicon-carbon composite material.The application utilizes internal doping scandium to improve the specific capacity of material and the porous structure formed after carbonization of metal framework to improve the compressive strength of material, reduce expansion, improve cycle performance.

The invention relates to the technical field of zinc negative electrodes, in particular to a zinc negative electrode with a modified polystyrene microsphere self-assembled protective layer and a preparation method and application of the zinc negative electrode. The invention relates to a zinc negative electrode with a modified polystyrene microsphere self-assembled protective layer. The zinc negative electrode comprises a zinc foil and aminated polystyrene microspheres which grow on the zinc foil in situ through horizontal evaporation self-assembly. According to the invention, a horizontal evaporation self-assembly method is adopted, disorderly dispersed polystyrene microspheres are used for self-assembly to form a three-dimensional zinc negative electrode protection layer array capable of guiding zinc ions to uniformly deposit and improving zinc ion diffusion kinetics, the growth of zinc dendrites is effectively inhibited, the coulombic efficiency of the zinc negative electrode is remarkably improved, and the cycle life of the zinc negative electrode is remarkably prolonged.

This invention discloses a method for preparing and applying highly sensitive and stable time-resolved fluorescent microspheres, relating to the field of immunochromatography. The preparation method of this invention includes the following steps: (1) preparation of highly stable polystyrene microspheres with high carboxyl density; (2) preparation of highly stable europium ion chelates; and (3) preparation of highly stable fluorescent microspheres. This invention constructs a highly stable fluorescent microsphere with high carboxyl density, linked by strong covalent bonds from the inside out, through a strategy combining "functional monomer copolymerization" and "surface covalent labeling." This microsphere exhibits significant advantages and innovation in chemical stability, anti-leakage capability of the fluorescent label, and surface functional group density. The time-resolved fluorescent microsphere test strip developed based on this microsphere has advantages such as good stability and high detection sensitivity, enabling rapid detection and analysis of analytes.

The application discloses a preparation method of polyglycerol and belongs to the technical field of fine chemical synthesis; in the preparation method of polyglycerol, polystyrene microspheres loaded with phosphomolybdic acid and gallium oxide are introduced as a solid acid catalyst, the phosphomolybdic acid, the gallium oxide and the polystyrene microspheres can interact with each other, so that the reaction efficiency of glycerol polymerization is remarkably improved, and further by controlling the reaction temperature and the reaction time, the polyglycerol with high purity and high yield can be synthesized; and the polyglycerol obtained has light color and high quality. Meanwhile, in the preparation method, the reaction temperature is relatively low, the energy consumption is small, the solid acid catalyst used can be separated by filtration and recycled, the green and environmental protection effect is achieved, and in addition, in the preparation method, no toxic, harmful or highly corrosive substances are used, so that the safety in the preparation process can be effectively ensured.

The invention discloses a PE-RT pipe and a preparation method thereof, and relates to the technical field of building heating and ventilation. The PE-RT pipe comprises an outer layer and an inner layer, the outer layer comprises heat-resistant polyethylene, and a V-shaped convex contact structure is arranged on the surface of the inner layer; the inner layer is prepared from the following components in parts by weight: 75 to 80 parts of low-density polyethylene A; 20 to 25 parts of low density polyethylene B; 5 to 15 parts of amino-modified silver-loaded silicon dioxide nano particles; 0.05 to 1.5 parts of amino modified polystyrene microspheres; 5-15 parts of an alkyl modified silicone additive with Ca, wherein a is greater than or equal to 5; 0.5 to 2 parts of a compatilizer; 0.5 to 2 parts of a coupling agent; the low-density polyethylene A is metallocene linear low-density polyethylene. The inner wall of the PE-RT pipe is provided with a micro-nano structure and a low-surface-energy antibacterial hydrophobic layer at the same time, and the PE-RT pipe has long-acting and lasting hydrophobic and anti-scaling functions.

The application provides an MHM electrode material and a preparation method and application thereof, and belongs to the technical field of electrochemical desalination. The MHM electrode material is Ti3C2T x MXene, polystyrene microspheres are treated by a polydien dimethyl ammonium chloride solution, and then are stirred and reacted with Ti3C2T x MXene, and then are subjected to freeze drying and pyrolysis to obtain the MHM electrode material. The Ti3C2T x MXene is constructed into a three-dimensional spherical structure, the stacking problem of traditional MXene layers is avoided, the advantages of the good conductivity, large surface area and excellent mechanical properties of the Ti3C2T MXene are fully exerted, the structural stability, the electrochemical performance and the desalination capacity are significantly improved, the MHM electrode exhibits excellent adsorption capacity, fast ion transmission rate and good cycle stability in a CDI device, and a new idea is provided for CDI material design.

The invention provides a saline-alkali soil conditioner and a preparation method thereof. The preparation method comprises the following steps: S1, preparing polystyrene microspheres coated with polyethyleneimine; s2, preparing attapulgite of which the surface is grafted with TEMPO oxidized cellulose, and then carbonizing the attapulgite to obtain a carbon-coated attapulgite composite material; s3, preparing composite aerogel; s4, bacillus pasteurii and azotobacter chroococcum are loaded on the composite aerogel, and the saline-alkali soil conditioner is obtained. The double strains are loaded on the composite aerogel, controlled release and slow release of the strains are achieved, in addition, the two microbial agents serve as dominant flora, breeding of harmful pathogens in soil can be inhibited, soil micro-ecological balance can be adjusted, and a healthy rhizosphere environment is created for follow-up crop planting.