242 results about "Phenyl Ethers" patented technology

The invention belongs to the technical field of electrochemistry, and particularly relates to a negative electrode binder which is composed of a core layer and a shell layer, and the core layer is coated with the shell layer. In one negative electrode binder, a core layer monomer used for synthesizing a core layer comprises ethylene glycol phenyl ether unsaturated acid ester. In the other negative electrode binder, the diameter of the core layer is 50-500 nm, and the thickness of the shell layer is 1-10 nm; or the glass transition temperature of the shell layer is greater than the glass transition temperature of the core layer; or the swelling degree of the core layer in the electrolyte is 20%-200%, and the swelling degree of the shell layer in the electrolyte is 1%-10%. The negative electrode binders have good flexibility, dispersibility, mechanical modulus and bonding strength, are beneficial to inhibition of volume expansion generated by a negative electrode active material in the charging and discharging process, and are beneficial to maintenance of structural stability in the long cycle process, so that the cycle performance of the battery is improved.

The invention discloses a method for recovering bisphenol A and cyclic carbonate by coupling polycarbonate with an epoxy compound, and belongs to the technical field of depolymerization and recovery of high polymer materials. The method comprises the following steps: constructing a reaction system comprising bisphenol A polycarbonate, an epoxy compound, Lewis acid, alkali and ionic liquid; placing the reaction system at the temperature of 70-150 DEG C in an air atmosphere, and carrying out a reaction for more than or equal to 10 min to obtain bisphenol A and cyclic carbonate; wherein the epoxy compound comprises at least one of styrene oxide, 1, 2-epoxypropane, 1, 2-epoxybutane, 1, 2-epoxydodecane, n-butyl glycidyl ether, epoxy propyl phenyl ether, 2-toluene glycidyl ether and 3-(1-naphthyloxy)-1, 2-epoxypropane, and the epoxy compound comprises at least one of styrene oxide, 1, 2-epoxypropane, 1, 2-epoxybutane, 1, 2-epoxydodecane, n-butyl glycidyl ether, epoxy propyl phenyl ether, 2-toluene glycidyl ether and 3-(1-naphthyloxy)-1, 2-epoxypropane; the alkali is inorganic alkali or organic alkali; the method is mild in reaction condition, high in resource utilization efficiency, good in operation safety and high in chemical monomer yield, and has a wide application prospect in the field of waste plastic treatment.

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 novel PDRN, a supramolecular liposome containing the PDRN as well as a preparation method and application of the supramolecular liposome. The preparation method of the novel PDRN comprises the following steps: (1) mixing a tissue raw material and PBS, crushing, carrying out enzymolysis, adding SDS, a Tween20 solution, polyethylene glycol octylphenol ether, a TE buffer solution and NaCl, stirring, centrifuging, mixing a supernatant with absolute ethyl alcohol, and standing to obtain a DNA crude extract; (2) carrying out breaking shearing treatment by using an ultrasonic breaking instrument; and (3) carrying out enzymolysis treatment by using restriction endonuclease and deoxyribonuclease, and the like. The PDRN supramolecular liposome is obtained by wrapping the PDRN with fatty acid extracted from marine microalgae. The fish testis are used as the raw material source, the selection range of the raw materials is widened, the preparation cost is reduced, and the organic reagent used in the preparation method is ethyl alcohol which is easy to remove and harmless.

The present disclosure provides a thermosetting resin composition contributing to reducing the elastic modulus of a cured product and increasing the flexibility thereof while reducing the chances of causing a decline in the heat resistance of the cured product. A thermosetting resin composition contains: a maleimide compound (A) having at least two maleimide groups in one molecule; a compound (B) having, at either or both of terminals thereof, a substituent with an ethylenic unsaturated bond and having a polyphenylene ether skeleton; and an inorganic filler (C). The compound (B) includes a compound (B1) having a butadiene-derived structural unit.

The invention discloses a phenyl ether bimetal organic framework antifouling material, a preparation method and application, and belongs to the technical field of marine antifouling materials. The preparation method comprises the following steps: 1) dissolving a carboxyl-containing phenyl ether organic ligand, a zinc salt and a lanthanide metal salt in a polar organic solvent, and carrying out a coordination reaction in a closed reaction container, so that zinc and lanthanide metal ions and carboxyl form coordinate bonds, and bridging the metal ions to form tetra-metal clusters; washing and drying crystals obtained after the reaction to obtain the phenyl ether-based bimetal organic framework; and 2) grinding the phenyl ether-based bimetal organic framework, uniformly dispersing the ground phenyl ether-based bimetal organic framework into the waterborne polyurethane resin, and fully mixing to obtain the phenyl ether-based bimetal organic framework antifouling material. The invention also provides an application of the antifouling material in marine antifouling and anticorrosion. The prepared antifouling material is low in synthesis cost and difficulty and stable in property, and has a remarkable inhibition effect on biological sedimentation of diatom, barnacle and the like.

The invention discloses bacillus subtilis LXN-1, and the bacillus subtilis LXN-1 is preserved in the China General Microbiological Culture Collection Center (CGMCC), and the preservation number is CGMCC.NO 31697. The bacillus subtilis LXN-1 is a bacillus subtilis LXN-1 strain. The bacillus subtilis LXN-1 has an inhibition effect on various plant pathogenic bacteria, the inhibition rate on tomato botrytis cinerea can reach 61.5%, the inhibition rate on tobacco brown spot caused by alternaria longibrachiata can reach 72%, the bacillus subtilis LXN-1 also has a virus resistance effect, the inhibition rate on tobacco TMV viral plaque can reach 95%, and the bacillus subtilis LXN-1 has a good application prospect. In addition, the bacillus subtilis LXN-1 also has the potential of being compounded with pesticide bactericides with iprodione, trifloxystrobin, difenoconazole, pyraclostrobin, copper oxychloride and copper hydroxide as main components for use, and has market popularization and application values, and absorption of the plants to nutrient elements can be enhanced, and the growth of the plants can be promoted, and the bacillus subtilis LXN-1 also has the potential of being compounded with the pesticide bactericides with the iprodione, the trifloxystrobin, the difenoconazole, the pyraclostrobin, the copper oxychloride and the copper hydroxide as main components.

The present invention provides a blue pigment color paste for a gel pen, the blue pigment color paste contains a blue pigment, a nonionic surfactant, an acrylic resin and water, the nonionic surfactant is a polyoxyethylene polycyclic phenyl ether surfactant, and the acrylic resin is an acrylic resin having an aryl group. The pigment color paste provided by the invention has excellent storage stability, has excellent lubricity after being prepared into ink, and can realize good writing feeling.

The invention discloses a high-toughness polyetherketoneketone polymer and a preparation method thereof, and belongs to the technical field of macromolecular special engineering plastics. The high-toughness polyether ketone ketone polymer is obtained by reacting diphenyl ether, paraphthaloyl chloride, a compound 1 and anhydrous aluminum trichloride according to a molar ratio of 1: a: (1-a): (3-5), the value of a is 0.5-0.9, and the compound 1 is isophthaloyl chloride with a flexible polyether side chain. According to the high-toughness PEKK polymer disclosed by the invention, a flexible polyether side chain is introduced into a rigid polymer main chain, so that compared with a traditional PEKK polymer molecule with a pure rigid structure, the high-toughness PEKK polymer shows better flexibility, and harmony and unification of strength, rigidity and flexibility are realized.

The present invention provides an aqueous suspension agrochemical composition showing a suppression of a crystal growth during storage and a bubble generation during dilution. The present invention provides also an aqueous suspension agrochemical composition comprising (a) Inpyrfluxam, (b) one or more agrochemically active ingredients having a melting point of 50 °C or high (excluding inpyrfluxam), (c) a lignin sulfonate, and (d) a polyoxyalkylene aryl phenyl ether phosphoric acid ester salt.

The invention discloses a reversible thermosensitive polymer functional dye and a preparation method thereof, and belongs to the technical field of thermosensitive color-changing dyes, the reversible thermosensitive polymer functional dye comprises a color-changing core material and a transparent microcapsule, and the transparent microcapsule coats the color-changing core material. The color-changing core material is prepared from the following components: 8 to 12 parts of color-changing dye ODB, 15 to 28 parts of a color developing agent BFPA, 210 to 400 parts of a solvent benzyl phenyl ether, 6 to 15 parts of an antioxidant, 125 to 220 parts of montmorillonite subjected to surface treatment by an organosilane modified organic cationic surfactant, 56 to 82 parts of a nonionic polymer suspending aid and 5 to 12 parts of an ultraviolet light absorber; the capsule wall of the transparent microcapsule is prepared from a transparent polymer. The reversible thermosensitive polymer functional dye can improve the acting force of a color developing agent BFPA and a solvent benzyl phenyl ether, so that a complex of BFPA and thermosensitive black ODB is separated as soon as possible, and the color contrast of the reversible thermosensitive polymer functional dye in two states of color development and decoloration is improved.

Disclosed herein is a capped poly(phenylene ether) having an activated ester end group and a structure as further defined herein. The capped poly(phenylene ether) can be particularly useful in curable compositions, thermoset compositions, and articles formed therefrom.

The invention discloses a preparation method of a polyurethane-acrylate dispersoid and application of the polyurethane-acrylate dispersoid in a coating, and belongs to the technical field of chemical engineering, and the preparation method comprises the following steps: S1, preparation of a bifunctional prepolymer: reacting glycidyl phenyl ether with adipic acid to generate a polyfunctional acrylate derivative, and then reacting with a sulfydryl-terminated thio-polyurethane prepolymer to obtain the bifunctional prepolymer; a difunctional prepolymer is obtained; s2, preparation of a mixed solution A: mixing the thio-urethane acrylate prepolymer with a viscosity reduction solvent, a hydrophilic chain extender and dihydroxy propionate, fully and uniformly stirring, and reacting hydroxyl in the dihydroxy propionate with isocyanate groups in the thio-urethane acrylate prepolymer to generate an isocyanate-terminated prepolymer; the problems that in the prior art, a polyurethane-acrylate dispersion is poor in stability and insufficient in comprehensive performance are solved, and the polyurethane-acrylate dispersion has the advantages of being good in weather resistance and efficient in processing.

The present disclosure relates ttoo a method for controlling unwanted vegetation / weeds. More particularly, the present disclosure relates to a method for controlling Lolium genus weeds and Raphanus genus weeds, with a herbicidal combination comprising an isoxazoline herbicide and a phenyl ether herbicide.

The invention relates to food contact safety type water-based single-component gradient barrier acrylic acid industrial anticorrosive paint with heterostructure topology as well as a preparation method and application of the food contact safety type water-based single-component gradient barrier acrylic acid industrial anticorrosive paint. The coating is mainly prepared from the following components: a zinc molybdate / bentonite compound, triethanolamine, deionized water, titanium dioxide, barium sulfate, an ammonium polyacrylate dispersing agent, acrylic resin, a polyether modified polysiloxane wetting agent, hydroxyethyl cellulose ether, a non-silicon mineral oil defoaming agent, propylene glycol phenyl ether and 1, 3-propylene glycol. A three-dimensional interpenetrating network is constructed through charge-driven self-assembly of branched acrylic resin and zinc molybdate / bentonite, a corrosive medium is forced to diffuse along a zigzag path, and compared with a traditional homogeneous coating, the retarding efficiency is improved; and meanwhile, a Fe-OOCR chelating passivation layer is generated in situ by utilizing selective enrichment of carboxyl functional groups on a metal base material interface, and a multi-stage physical barrier is formed by combining gradient distribution of the titanium dioxide-barium sulfate core-shell filler, so that geometric blocking and energy dissipation of a corrosion medium permeation path are realized.

The present invention discloses a phenyl ether-based bimetallic organic framework antifouling material, its preparation method, and its application, belonging to the technical field of marine antifouling materials. The preparation method is as follows: 1) A phenyl ether organic ligand containing a carboxyl group, a zinc salt, and a lanthanide metal salt are dissolved in a polar organic solvent and placed in a sealed reaction vessel for a coordination reaction, whereby the zinc and lanthanide metal ions form coordination bonds with the carboxyl groups, bridging the metal ions to form a tetrametallic cluster; the resulting crystals are washed and dried to obtain the phenyl ether-based bimetallic organic framework; 2) the phenyl ether-based bimetallic organic framework is ground and uniformly dispersed in an aqueous polyurethane resin, followed by thorough mixing to obtain the phenyl ether-based bimetallic organic framework antifouling material. The present invention also provides the application of the antifouling material in marine antifouling and anticorrosion applications. The antifouling material prepared by the present invention has low synthesis cost and difficulty, stable properties, and significant inhibitory effect on the settlement of organisms such as diatoms and barnacles.

The invention belongs to the field of medicines, and particularly relates to a phenyl ether compound containing a hexahydrofuro [3, 2-b] furan structure and application of the phenyl ether compound. The compound is a phenyl ether compound containing a hexahydrofuro [3, 2-b] furan structure as shown in a general formula I and a pharmaceutically acceptable salt thereof, and substituent groups R1, R2 and R3 have meanings given in the specification. The compound disclosed by the invention has obvious inhibitory activity on xanthine oxidase, and the phenyl ether compound containing the hexahydrofuro [3, 2-b] furan structure and the pharmaceutically acceptable salt thereof can be used for preparing medicines for treating hyperuricemia or gout. # imgabs0 #

The invention discloses an unsaturated phenyl ether monomer, a holographic recording medium, a preparation method and a related device, the structural general formula of the monomer is as shown in G1 and G2, R1 represents any one of R2, A1 and A2 independently represent any one of hydrogen and phenyl, A3 represents hydrogen or methyl, A4 represents C1-C4 alkyl or phenyl, n is a positive integer and n = 1-5. The unsaturated phenyl ether monomer provided by the invention has high refractive index and is in a liquid state, and the holographic recording medium with high sensitivity, high diffraction efficiency and high refractive index modulation degree can be obtained by applying the unsaturated phenyl ether monomer to preparation of the photopolymer type holographic recording medium.

The invention relates to the technical field of polymer suspension preparation, and relates to a polymer suspension for coal rock gas. Comprising the following components in parts by weight: 0.05 to 0.07 part by weight of a viscosity regulator, 0.1 to 0.5 part by weight of polyacrylamide, 0.2 to 0.8 part by weight of hydroxypropyl guar gum, 0.01 to 0.05 part by weight of borax, 0.03 to 0.06 part by weight of a polyoxyethylene octyl phenyl ether surfactant, 0.02 to 0.05 part by weight of a sodium hydroxide pH regulator, 0.01 to 0.03 part by weight of a citric acid scale inhibitor, 0.02 to 0.04 part by weight of a sodium benzoate preservative and the balance of water. 0.01-0.03 part by weight of a chlorogenic acid salt-resistant agent and 10-20 parts by weight of a quartz sand proppant; wherein the viscosity modifier is prepared by reacting carboxymethyl cellulose with amino-polyethylene glycol-lipoic acid according to the ratio of 1: (1.2-1.5) and forming an amido bond under the condition of 1-ethyl-3-(3-dimethylaminopropyl)-carbodiimide hydrochloride and N-hydroxysuccinimide, and the viscosity modifier is adopted, so that the viscosity modifier can be used for modifying the viscosity of the product. The viscosity, the high-temperature stability and the salt resistance of the suspension are enhanced, and the limitation of the traditional suspension is effectively solved.

The application discloses an influenza virus extraction diluent and application thereof, and the diluent comprises Na2HPO4*12H2O, NaH2PO4*2H2O, NaCl, Proclin 300, ethylenediaminetetraacetic acid disodium salt dihydrate, polyoxyethylene-8-octylphenyl ether and alkylphenol polyoxyethylene ether. The polyoxyethylene-8-octylphenyl ether and the alkylphenol polyoxyethylene ether added in the diluent improve the virus extraction capacity, enhance the stability of the product, save the cost and time, provide a reference value for other products, prolong the product service life for customers, reduce the limitation, are more suitable for the temperature, and have greater market value.

The invention provides a preparation process of a PET (Polyethylene Terephthalate) film laser printing coating, and belongs to the technical field of laser printing coatings. 72-75 parts of water-based acrylic resin emulsion, 2-2.5 parts of polydimethylsiloxane, 5-7 parts of silicon-doped titanium dioxide, 1-2 parts of a silane coupling agent KH-570, 2-3 parts of a cross-linking agent vinyltriethoxysilane, 2-4 parts of a coalescing agent propylene glycol phenyl ether, 0.6-0.8 part of a photoinitiator and 0.3-0.5 part of a defoaming agent are put into a double-screw high-speed dispersion machine to be dispersed and left to stand, and a mixture is obtained; s2, carrying out corona treatment on the PET film to obtain a pretreated PET film; and S3, uniformly coating the pretreated PET film obtained in S2 with the mixture obtained in S1, and performing curing treatment to obtain the PET film laser printing coating. The heat resistance of the prepared PET film laser printing coating and the adsorption capacity of the PET film laser printing coating to carbon powder can be effectively improved.

An ionic cuprous complex with thermally activated delayed fluorescence performance, characterized in that: the ionic cuprous complex with thermally activated delayed fluorescence performance is tetrakis(3,5-bis(trifluoromethyl)phenyl)boronic acid-[bis(2-diphenylphosphinophenyl)ether]-[1,10-phenanthroline]copper(I), tetrakis(3,5-bis(trifluoromethyl)phenyl)boronic acid-[4,5-bisdiphenylphosphino-9,9-dimethylxanthene]-[1,10-phenanthroline]copper(I), tetrakis(3,5-bis(trifluoromethyl)phenyl)boronic acid-[4,5-bisdiphenylphosphino-9,9-dimethylxanthene]-[1,10-phenanthroline]copper(I), tetrakis(3, 5-Bis(trifluoromethyl)phenyl)boronic acid-[bis(2-diphenylphosphinophenyl)ether]-[4,7-diphenyl-1,10-phenanthroline]copper(I), tetrakis(3,5-bis(trifluoromethyl)phenyl)boronic acid-[4,5-bis(diphenylphosphinophenyl)ether]-[4,7-diphenyl-1,10-phenanthroline]copper(I), with complexes 1b, 2a, and 2b as luminescent dyes. These complexes have application value in the recording, storage, and protection of information.

The invention discloses high-wettability reactive nano-silver ink for flexible electronics and a preparation method and application thereof.The preparation method comprises the following steps that S1, silver citrate is weighed and placed in a container, ammonia water is added, and a mixture A is obtained; s2, adding a citric acid solution and organic alcohol into the mixture A to obtain a mixture B; s3, adding ascorbic acid into the mixture B, performing ultrasonic treatment, and filtering to obtain filtrate which is a mixture C; and S4, a surfactant is added into the mixture C, the surfactant is one or more than two of a polyoxyethylene acid ester surfactant, a polyether modified siloxane surfactant and a phenyl ether surfactant, and the ink is obtained after ultrasonic filtration. The prepared ink has excellent stability, can realize low-level rapid sintering, and shows excellent wettability on a silicon substrate.

The invention provides a self-assembled surfactant as well as preparation and application thereof. The preparation method comprises the following steps: adding an anionic surfactant and a nonionic surfactant into a buffer solution, uniformly mixing, and heating until the anionic surfactant and the nonionic surfactant are completely molten, so as to obtain the self-assembled surfactant. Wherein the anionic surfactant is one or more of lignosulfonate, secondary alkyl sulfonate and alpha-olefin sulfonate; the nonionic surfactant is one or more of polyethylene glycol, fatty alcohol-polyoxyethylene ether, polyoxyethylene alkyl ether and polyoxyethylene nonyl phenyl ether. The specific anionic surfactant and the nonionic surfactant are compounded, self-assembly is completed through heating, and the obtained self-assembly surfactant can remarkably improve the enzymolysis efficiency of lignocellulose.

The invention relates to the technical field of material preparation, and discloses a method for preparing a high molecular polymer with segmented distribution of zinc cadmium sulfur quantum dots. The method for preparing the high molecular polymer with segmented distribution of zinc cadmium sulfur quantum dots comprises the following steps: S1: mixing perylenetetracarboxylic dianhydride, dodecylamine and imidazole to react to obtain a perylene diimide derivative; S2: mixing sulfur powder, octadecene, cadmium oxide, zinc acetate and oleylamine to react to obtain zinc cadmium sulfur quantum dots; S3: assembling and compounding the perylene diimide derivative and the zinc cadmium sulfur quantum dots to obtain the high molecular polymer with segmented distribution of zinc cadmium sulfur quantum dots. The obtained high molecular polymer with segmented distribution of zinc cadmium sulfur quantum dots effectively improves the effect of degrading decabromodiphenyl ether.

The invention belongs to the technical field of polyimide materials, and particularly relates to an interpenetrating network type polyimide material as well as a preparation method and application thereof. The preparation method comprises the following steps: carrying out first polycondensation on pyromellitic dianhydride and 4, 4 '-diaminodiphenyl ether to obtain first polyamide acid; performing first cross-linking on the first polyamide acid under the action of a first cross-linking agent to obtain a first cross-linked network; carrying out second polycondensation on the amino-terminated poly (dimethyl siloxane) and 4, 4 '-(hexafluoroisopropenyl) diphthalic anhydride to obtain second polyamide acid; mixing the first polyamic acid and the second polyamic acid for pre-reaction, and then adding a second cross-linking agent for second cross-linking to obtain a precursor solution; and carrying out imidization on the precursor solution to obtain the interpenetrating network type polyimide material. The interpenetrating network type polyimide material obtained by the preparation method provided by the invention realizes synergistic enhancement of strength and toughness.

The invention discloses a self-repairing mute tire and a preparation method thereof, and relates to the technical field of tires, the self-repairing mute tire comprises a tire body, and a self-repairing rubber layer and a mute material which are sequentially attached to the inner wall of the tire body from inside to outside; the self-repairing adhesive layer is prepared from the following components: epichlorohydrin rubber, acrylate rubber, a rosinyl phenyl phosphine oxide isoxazolyl functional polymer, 4, 4-chloroformyl phenyl ether, a catalyst, 2, 2-bis [4-(4-aminophenoxy) phenyl]-1, 1, 1, 3, 3, 3-hexafluoropropane, trithiocyanuric acid, a filler, an accelerant TMTD (Tetramethylthiuram Disulfide) and an auxiliary agent; the rosinyl phenyl phosphine oxide isoxazolyl functional polymer comprises structural units introduced through a condensation polymerization reaction of the following monomers: glycerol triabietate, bis (4-carboxyl phenyl) phenyl phosphine oxide and 3, 5-isoxazoledicarboxylic acid. The tire is remarkable in self-repairing effect, good in mute performance, sufficient in performance stability and long in service life.

The invention discloses a preparation method of phloroglucinol triglycidyl ether, which comprises the following steps: (1) under the action of a catalyst and at the temperature of 100-130 DEG C, performing ring-opening reaction on phloroglucinol and epoxy chloropropane to generate tris (3-chloro-2-hydroxy propyl) phenyl ether; (2) adding water accounting for 1% of the total amount of reactants at 30-80 DEG C, adding alkali metal hydroxides in batches, and carrying out dehydrochlorination reaction; (3) dissolving the crude product obtained in the step (2) in a water-insoluble solvent, and washing with a low-concentration alkali metal hydroxide aqueous solution at 30-100 DEG C; and (4) washing with a low-concentration sodium dihydrogen phosphate solution, and carrying out reduced pressure distillation on a solvent layer to remove the solvent, thereby obtaining the phloroglucinol triglycidyl ether. By adopting the mode, the phenol type glycidyl ether with close to three functionality degrees can be synthesized.

The invention discloses a preparation method of phenyl trapezoid polysilsesquioxane modified wear-resistant polyurethane, which comprises the following steps: uniformly dispersing phenyl trapezoid polysilsesquioxane and epoxy propyl phenyl ether in a solvent, adding a catalyst, and reacting at 70-130 DEG C for 5-10 hours to obtain polyhydric alcohol with end carbon alcohol hydroxyl of the epoxy propyl phenyl ether. Uniformly dispersing the prepolymer, conventional polyol and excessive diisocyanate in a solvent, adding a catalyst, and reacting at 50-100 DEG C for 20 minutes to 2 hours, so as to obtain an isocyanate group-terminated prepolymer; and mixing the prepolymer with an arylamine chain extender, and carrying out a reaction in a mold at 80-120 DEG C for 2-10 h to obtain the phenyl trapezoidal polysilsesquioxane wear-resistant polyurethane workpiece. The polyurethane obtained by the invention can be used in high-wear environments, such as the inner wall of a grinding machine and the inner wall of a rolling mixer.

The invention relates to the technical field of chromatographic packing, in particular to phosphine-containing ligand modified silica gel chromatographic packing and a preparation method thereof.The preparation method comprises the steps that firstly, porous silsesquioxane microspheres containing diphenylphosphine ligands are designed and synthesized to serve as a functional unit, and modified bridged silane containing a phenyl ether structure serves as an alkali-resisting enhancing unit; then copolycondensation is carried out on the units and tetraethoxysilane through a sol-gel method, an organic-inorganic hybrid silica gel skeleton is constructed, and finally the pore channel structure of the filler is optimized through a two-step pore expanding technology. According to the method, a phosphine ligand is firmly embedded into a silica gel skeleton in a covalent bond form, and modified bridged silane containing a phenyl ether structure is used as a part of the skeleton to provide hydrophobic protection and space stabilization effects, so that long-term stability of the filler in a strong alkaline environment and high-capacity and high-selectivity adsorption of metal ions are synergistically realized.