540 results about "Phthalate" patented technology

The invention provides a baricitinib phthalate crystal form, and relates to the technical field of crystal form drug molecules. The crystal form is radiated by Cu-K alpha, and an X-ray diffraction pattern represented by 2 theta has characteristic peaks at 6.20 + / -0.2 degrees, 6.53 + / -0.2 degrees, 14.53 + / -0.2 degrees, 18.29 + / -0.2 degrees, 18.53 + / -0.2 degrees, 18.70 + / -0.2 degrees, 19.44 + / -0.2 degrees and 26.95 + / -0.2 degrees; the crystallographic measurement parameters are as follows: an orthorhombic system is adopted, and the space group is Pbcn; the cell parameters are as follows: # imgabs 0 # alpha = 90 degrees, beta = 90 degrees, gamma = 90 degrees, and the cell volume # imgabs 1 #. The invention also provides a related preparation method and application. The baricitinib phthalate crystal form disclosed by the invention is good in stability and relatively high in solubility and permeability.

The invention provides a process for preparing cyclohexane-1, 2-dioctyl phthalate, which adopts a loop reaction process to perform hydrogenation reaction of dioctyl phthalate, and comprises the following steps: under the condition of excessive hydrogen atmosphere, firstly putting a catalyst, a solvent and a target product into a reaction tank to form a circulating material; when reaction liquid passes through the Venturi ejector, hydrogenation reaction can be carried out, the Venturi reactor can provide a high gas-liquid mixing ratio, the reaction rate is high, and the production efficiency is high. The catalyst and the reaction mixed liquid are separated by combining a membrane separation process, so that the catalyst is recycled, and the cost is reduced. The target product is added into the system to maintain material balance in the system, so that stable production is ensured. Compared with the traditional technical process, the method has the advantages that the reaction time is shortened, the energy consumption of the device and the investment cost are reduced, the high conversion rate of reactants and the high selectivity of target products can be kept, the operation period of the device is long, and continuous and stable production is realized.

The invention discloses a quick-curing polyurethane seamless expansion joint material for roads and a preparation method, and belongs to the technical field of road engineering materials. The material is prepared from polyether polyol, polycaprolactone glycol, a bisphenol A epoxy-polyether block isocyanate terminated prepolymer, a methyl phenyl silicon-boron hybrid hydroxyl chain extender, diphenylmethane diisocyanate, calcium carbonate, wollastonite, a hindered amine anti-aging agent and dioctyl phthalate. Wherein the bisphenol A epoxy-polyether block isocyanate terminated prepolymer is prepared by the following steps: reacting bisphenol A with epoxy chloropropane to generate epoxy resin, reacting with polytetramethylene ether glycol, and introducing isophorone diisocyanate; the methyl phenyl silicon-boron hybrid hydroxyl chain extender is prepared by carrying out hydrosilylation and ethylene glycol reaction on methyl trimethoxy silane, 3-glycidyl ether oxypropyl trimethoxy silane and allylboronic acid pinacol ester; and the methyl phenyl silicon-boron hybrid hydroxyl chain extender is prepared by carrying out hydrosilylation on methyl trimethoxy silane, 3-glycidyl ether oxypropyl trimethoxy silane and allylboronic acid pinacol ester. The material has the advantages of quick curing property, weather resistance and high-temperature stability, and is suitable for road seamless expansion joint scenes.

The invention relates to a photo-thermal aging resistant photovoltaic cable and a preparation method thereof, and belongs to the technical field of high polymer materials. The photo-thermal aging resistant photovoltaic cable is composed of a conductor wire core, and an insulating layer, a filling layer and an outer sheath which are sequentially coated on the outer side of the conductor wire core, the outer sheath is prepared from the following raw materials in parts by weight: 80-120 parts of polyvinyl chloride resin, 3-5 parts of a modified anti-aging agent, 2-8 parts of a modified flame retardant, 1-3 parts of dioctyl phthalate, 10-20 parts of nano silicon dioxide, 1-3 parts of butyl stearate and 3-5 parts of zinc stearate; the photo-thermal aging resistant photovoltaic cable prepared by the invention not only has good ultraviolet ray and thermal aging resistant effects, but also has an excellent flame retardant effect.

The invention relates to the technical field of waterproof materials, and particularly discloses a self-adhesive polymer modified asphalt waterproof material as well as a preparation method and application thereof. The self-adhesive polymer modified asphalt waterproof material is prepared from the following raw materials in parts by mass: 45 to 55 parts of asphalt, 8 to 12 parts of softening oil, 10 to 15 parts of modifier, 8 to 12 parts of desulfurized rubber and 10 to 15 parts of filler, the modifier comprises the following raw materials: an ethylene-octylene copolymer, butadiene styrene rubber, coumarone resin and a functional modified material; the functional modified material is prepared from illite and phthalic acid ester. Through the design of the modifier and the proportion design of the raw material components, the synergistic interaction effect of the raw materials is fully played, the comprehensive performance of the waterproof material is improved, and the self-adhesive polymer modified asphalt waterproof coiled material prepared from the waterproof material has excellent high and low temperature properties, persistent adhesivity, peel strength, aging resistance and water resistance.

The invention relates to the technical field of rubber-plastic composite flame-retardant materials, and provides a graphite rubber-plastic composite flame-retardant material and a preparation method thereof.The preparation method comprises the following processes that nitrile rubber, polyvinyl chloride, dioctyl phthalate, modified expandable graphite, a stabilizer, sulfur and an anti-aging agent are added into a high-speed mixer and mixed to be uniform, and a premix is obtained; and feeding the premix into a double-screw extruder, and carrying out melt blending, extrusion and vulcanization to obtain the composite flame-retardant material. The preparation method has the beneficial effects that the modifier is combined with the expansible graphite and compounded with the nitrile rubber, the polyvinyl chloride and other base materials, so that the flame retardant property and the mechanical property of the prepared composite material are remarkably improved.

The invention provides a flexible 3D printing material with a double-layer structure and a preparation method thereof.The flexible 3D printing material comprises a TPU coating layer and an inner-layer TPU composite material, the TPU coating layer is prepared from hard TPU, and the inner-layer TPU composite material is prepared from flexible TPU and a coupling agent used for improving the interface bonding strength between the flexible TPU and the coupling agent; the inner-layer TPU composite material further comprises a plasticizer, the plasticizer is used for improving the overall elongation at break of the material and reducing the hardness of the material, and the plasticizer is one or more of phthalate, terephthalate, succinate or isophthalate. According to the scheme, the outer layer material which is moderate in hardness, good in tensile strength and low in elongation at break is used for coating the inner layer flexible material which is high in elongation at break, so that the 3D printing material can be smoothly replaced in AMS, a flexible product can be smoothly printed by using FDM, and additional treatment is not needed.

The invention relates to the technical field of composite materials, and discloses a polyurethane composite material for a solar photovoltaic power generation frame and a bracket. The polyurethane composite material comprises the following raw materials: a compound flame retardant, an isocyanate monomer, a catalyst, a small molecule chain extender, a functional additive, talcum powder, dioctyl phthalate, zinc stearate, and an antioxidant 168; wherein the compound flame retardant is prepared by introducing nitrogen-phosphorus flame retardant elements into the structure of epoxy-terminated polybutadiene, and undergoing polycondensation reaction with the isocyanate monomer, so that the nitrogen-phosphorus flame retardant elements are introduced into the polyurethane main chain, thereby giving the polyurethane composite material excellent flame retardant performance; and the functional additive is prepared by chemically connecting polyethylene fibers with fullerenes, thereby improving the anti-ultraviolet performance of the polyurethane composite material and effectively extending its service life.

The invention relates to the technical field of shield tunnel construction, and discloses a shield tunnel segment joint waterproof material and a waterproof structure, the shield tunnel segment joint waterproof material comprises a component A and a component B; the component A comprises the following component: 30-40 parts of liquid polysulfide rubber; 5 to 10 parts of a fluorinated polyurethane prepolymer; 1-5 parts of a silane coupling agent; 3-5 parts of fumed silica; 8-15 parts of hollow glass beads; 10 to 15 parts of nano calcium carbonate; 0.5 to 2 parts of polytetrafluoroethylene micro powder; 0.1 to 1 part of ettringite; the component B comprises the following component: 1-5 parts of manganese dioxide; and 5 to 10 parts of dioctyl phthalate. By utilizing the characteristics that the sealing gasket has excellent fluidity during injection and can be automatically cured into a high elastomer within a set time, a pre-installed sealing gasket can be replaced by adopting an innovative injection process, and the construction difficulty faced by high-precision shield segment assembly in a high-water-pressure environment is effectively solved.

The invention relates to the technical field of cables, and provides a flexible cable for a robot, which comprises a cable core and a sheath layer wrapping the cable core, the cable core comprises signal lines and power lines. Each signal line sequentially comprises a conductor, a belting layer and a shielding layer from inside to outside; the shielding layer sequentially comprises a first shielding layer and a second shielding layer from inside to outside; the first shielding layer is a bare copper wire mesh layer; the second shielding layer is a tinned copper wire mesh layer; the belting layer is a glass fiber tape layer; the sheath layer comprises the following raw material components in parts by weight: 80-90 parts of polyvinyl chloride resin, 20-30 parts of a plasticizer, 2-4 parts of an anti-aging agent, 2-4 parts of a calcium-zinc stabilizer, 1-4 parts of a lubricant and 6-16 parts of a flame retardant; the plasticizer is prepared from dioctyl phthalate, polyethylene glycol adipate and p-methoxyacetophenone. According to the technical scheme, the problem of low elongation at break of the flexible cable for the robot in the prior art is solved.

Processes and systems for producing recycled content polyethylene terephthalate (r-PET) are provided. Integration of chemical recycling facilities with PET production facilities reduces energy consumption and helps minimize adverse environmental impacts, while providing valuable end products having up to 100 percent recycled content.

The invention relates to the field of pharmaceutical preparations, in particular to water-free swallowing granules and a preparation method thereof. The water-free swallowing granules provided by the invention comprise drug-containing taste-masking granules and a taste-modifying material, and the drug-containing taste-masking granules are prepared from drug-containing pellets and the taste-masking material; the raw material of the drug-containing pellet comprises an adhesive, and the adhesive is selected from one or more of povidone, hydroxypropyl methylcellulose, methylcellulose, hydroxypropyl cellulose or starch slurry; the weight ratio of the drug-containing pellet to the taste masking material is (2-10): 1; the taste masking material comprises a coating component and an anti-sticking agent, wherein the coating component is selected from one or more of ethyl cellulose, cellulose acetate, cellulose acetate phthalate, cellulose acetate butyrate, hydroxypropyl methyl cellulose phthalate and carboxymethyl ethyl cellulose; the anti-sticking agent is selected from one or two of lauryl sodium sulfate and talcum powder, and the obtained water-free swallowing granules are easy to swallow and good in stability.

The present disclosure relates to a flexible multi-layered material. An embodiment consistent with the disclosure has a plurality of poly(vinyl chloride)—PVC—layers, wherein at least one of the plurality of PVC layers is a foam layer, wherein each of the layers of the plurality of PVC layers comprises up to 60% (w / w) of a phthalate-free plasticizer, and wherein the phthalate-free plasticizer is selected from the group consisting of: phosphate, trimellitate, adipate, citrate, sebacate, polyester, vegetable oil, and mixtures thereof, and wherein the solubility of the phthalate-free plasticizer in the PVC is at least 13 (J·cm−3)1 / 2.

Pharmaceutical compositions suitable for oral administration (such as a tablet or a capsule) are provided, which comprise a therapeutically effective amount of an amorphous solid dispersion of cabozantinib, e.g., for treating a proliferative disorder. Preferably, the amorphous solid dispersion consists of (a) cabozantinib or a pharmaceutically acceptable salt thereof (such as cabozantinib(S)-malate); (b) at least one pharmaceutically acceptable carrier selected from the group consisting of hydroxypropyl methyl cellulose acetate succinate (HPMC-AS), polyvinyl pyrrolidine and vinyl acetate (PVP / VA) copolymer, hydroxypropyl methylcellulose phthalate (HPMCP), and mixtures thereof; (c) a pore-forming agent; and (d) a plasticizer.

A laundry liquid composition comprising a surfactant, an alkoxylated zwitterionic or cationic polyamine polymer and an aminocarboxylate sequestrant.

The invention discloses an anti-aging light-conversion silver black mulching film and a preparation method thereof, and belongs to the technical field of agricultural polymer films. The preparation method comprises the following steps: S1, mixing low-density polyethylene powder, aluminum paste, a complex light conversion agent, dioctyl phthalate and EVA (Ethylene Vinyl Acetate) to prepare silver light conversion master batches; s2, vinyl-terminated fluorosilicone oil, tert-butyl peroxybenzoate and linear low-density polyethylene powder are stirred for a reaction, and modified low-density polyethylene is obtained; the modified low-density polyethylene, maleic anhydride grafted polyethylene, a multi-effect light stabilizer and polyethylene wax are subjected to banburying granulation, and modified light-stable master batches are obtained; s3, carrying out banburying granulation on the low-density polyethylene powder, the polyethylene powder, carbon black, zinc stearate, ethylene bis-stearamide and the EVA powder to obtain black master batches; s4, blending the silver layer and the black layer, and performing double-layer co-extrusion to obtain the light-conversion silver-black mulching film. The light-conversion silver black mulching film provided by the invention has good mechanical properties and aging resistance.

The invention relates to a composite plasticizer, a silicon nitride green body, a preparation method of the silicon nitride green body and a silicon nitride ceramic chip, and relates to the technical field of ceramic materials. The first plasticizer comprises at least one of a glycol polymer and glycol polymer monomethyl ether, the glycol polymer is HO-(CaH2aO) b-H, the glycol polymer monomethyl ether is HO-(CaH2aO) b-CH3, a is greater than or equal to 2 and less than or equal to 6, and the molecular weight is 2000-10000. The molecular formula of the second plasticizer is R1-(CmH2mO) n-R2, m is greater than or equal to 2 and less than or equal to 6, m * n is greater than or equal to 2 and less than or equal to 30, R1 is one of hydroxyl, alkoxy or carboxylic ester group, and R2 is one of hydrogen, alkyl or alkyl carbonyl. The composite plasticizer provided by the embodiment of the invention can replace a phthalate plasticizer in related technologies, and reduces environmental and health risks while improving the plasticizing effect.

The present invention relates to a solid Ziegler-Natta catalyst component for use in olefin polymerization. The catalyst component comprises magnesium, titanium, halide, one or more dicylopentyldialkoxysilane compounds, one or more dialkylaminotrialkoxysilane compounds, and one or more internal electron donors comprising urea, phthalate and 1,3-diether. The catalyst components, according to present invention, are able to produce polypropylene polymers having high isotacticity with high melt flow rate.

The application discloses a method for inhibiting the migration of toxic small molecules in plastics based on a protein-based phase transition composite coating, which is characterized by the following steps: inducing the rapid phase transition of proteins on the surface of plastics by a disulfide bond reducing agent to form a nanofilm, and adsorbing polysaccharides on the surface of the nanofilm to form a protein-based phase transition composite coating on the surface of the plastics, which can inhibit the migration of toxic small molecules in the plastics. The preparation method of the protein-based phase transition composite coating is simple, the cost is low, the inhibition effect on the migration of phthalate plasticizers and bisphenol A in plastics (such as PVC, PP, PE, PS and PET) is good, the adsorption of drugs on the surface of medical plastics can be prevented at the same time, the protein-based phase transition composite coating has good biocompatibility, is suitable for temperature-sensitive plastics, has universality, can be safely used on the surface of food and medical plastic products, and has a good popularization and application prospect on the surface of plastics.

The invention is suitable for the technical field of protective coatings, and provides a peelable protective coating and application thereof. The strippable protective coating is prepared from the following components in parts by weight: 20 to 50 parts of polyurethane, 1.5 to 5.5 parts of polytetrafluoroethylene, 1 to 4 parts of dioctyl phthalate, 2 to 3 parts of nano titanium dioxide, 0.7 to 1.3 parts of ultraviolet light absorber, 1 to 2 parts of tetraamino phthalocyanine, 3 to 6 parts of tetrahydroxy zinc porphyrin-metal oxide, 2.2 to 5.4 parts of inorganic filler, 0.3 to 0.6 part of surfactant and 0.2 to 0.7 part of antioxidant; preferably, the tetrahydroxy zinc porphyrin-metal oxide is one or more of tetrahydroxy zinc porphyrin-ZnO, tetrahydroxy zinc porphyrin-NiO and tetrahydroxy zinc porphyrin-CuO, and the tetrahydroxy zinc porphyrin-metal oxide is one or more of tetrahydroxy zinc porphyrin-ZnO, tetrahydroxy zinc porphyrin-NiO and tetrahydroxy zinc porphyrin-CuO. The mass ratio of the tetraamino phthalocyanine to the tetrahydroxy zinc porphyrin-metal oxide is 1: 3. The prepared protective coating has excellent mechanical properties and is easy to peel off, and no substance is left on the surface of a base material after the whole protective coating is peeled off.

The invention discloses an antibacterial coating which comprises a component A and a component B. The component A comprises the following raw materials in parts by weight: 40-60 parts of epoxy resin, 15-35 parts of polyamide resin, 5-10 parts of tea tree essential oil, 1-3 parts of di (2-ethylhexyl) phthalate, 1-2 parts of fumed silica, 1-2 parts of acrylate, 1-2 parts of sodium phosphate and 1-2 parts of polyvinyl ether. The component B comprises the following raw materials in parts by weight: 20-30 parts of modified nano zinc oxide, 40-60 parts of an antibacterial curing agent, 15-20 parts of butanol and 2-10 parts of acetone. The weight ratio of the component A to the component B is 8: (2-4), and the water-resistant coating is excellent in mechanical property, high in adhesive force and good in water resistance.

The invention discloses a paired electrochemical synthesis method of anisaldehyde and phthalide, which comprises the following steps of: adopting p-methyl anisole and phthalate as raw materials, oxidizing p-methyl anisole at an anode to generate anisaldehyde through electrolytic reaction in the same electrolytic bath, and reducing phthalate at a cathode to generate phthalide, an electrolyte system adopted in the electrolytic reaction comprises an electrolyte, water, N, N-dimethylformamide and methanol. In the same electrochemical synthesis system, p-methyl anisole and phthalate are used as raw materials, the mixed solvent which is low in price and easy to obtain is used, anisaldehyde is generated on an anode and phthalide is generated on a cathode through an electrolytic reaction, high-added-value products exist in the anode and the cathode, an oxidizing agent and a noble metal catalyst are not needed, and the method is simple and convenient to operate. Basically no three wastes are generated, and no hydrogen and oxygen are generated in the reaction process, so that the method is safer.

The invention relates to high-molecular-weight polydiethylene glycol phthalate, a preparation method thereof and low-warping hydrolysis-resistant glass fiber reinforced PBT (polybutylene terephthalate) in the field of resin. The high-molecular-weight polydiethylene glycol phthalate has a structure as shown in a formula (I), and the low-warping hydrolysis-resistant glass fiber reinforced PBT is prepared from the following components: PBT, high-molecular-weight polydiethylene glycol phthalate, an inorganic filler and glass fibers. By adding the high-molecular-weight polydiethylene glycol phthalate, the tensile strength and bending strength of a PBT and high-molecular-weight polydiethylene glycol phthalate blending system can be improved, the notch impact strength of the system can be improved to a certain extent, the molding shrinkage rate of the blending system is reduced, and the PBT / high-molecular-weight polydiethylene glycol phthalate blending system has hydrolysis resistance and can be used for preparing the PBT / high-molecular-weight polydiethylene glycol phthalate composite material. And the effect is obvious.

Disclosed are biodegradable compositions, suitable for using in packaging, containing an Ulva polysaccharide, a nanomaterial, a non-Ulva biomass, and a non-phthalate plasticizer, and methods of forming thereof.

The present application provides a lubricating additive, comprising the following components of the raw material: 20 to 40 parts by weight of an ester compound, the ester compound is selected from one or more of di(2-ethylhexyl) adipate, diisobutyl adipate, diheptyl adipate, diisononyl adipate, diisodecyl adipate, dimethyl sebacate, dibutyl sebacate and di(2-ethylhexyl) sebacate; 5 to 15 parts by weight of a fluorine-containing ion salt, the fluorine-containing ion salt is selected from one or more of lithium di(trifluoromethanesulfonyl)imide, lithium trifluoromethanesulfonate and lithium tetrafluoroborate; 1 to 5 parts by weight of an alkyl phthalate. The lubricating additive has good dispersibility in base oil, and the prepared conductive grease has good electrical conductivity and friction reduction and anti-wear properties. It is used in electrical equipment to have lubrication, friction reduction and antistatic effects, can reduce the failure frequency of equipment, extend the service life of equipment, and improve production efficiency and safety.

The embodiment of the invention discloses a porous multi-element doped sludge carbon-based low-temperature denitration catalyst and a preparation method thereof, relates to the technical field of air pollution control, and aims to solve the technical problem that the existing catalyst is generally poor in performance in a medium-low temperature flue gas environment. The preparation method comprises the following steps: obtaining target sludge; the method comprises the following steps: pretreating target sludge to obtain a sludge carbon precursor; performing ternary molten salt assisted one-step carbonization activation treatment on the sludge carbon precursor to obtain porous sludge carbon particles; mixing and dissolving the porous sludge carbon particles with a manganese precursor, a cobalt precursor and a rare earth metal Ce precursor in deionized water, adding a coupling agent, uniformly stirring and mixing, carrying out ultrasonic immersion treatment, and carrying out vacuum drying to obtain active component-loaded sludge carbon; the coupling agent is a silane coupling agent or a phthalate coupling agent; and carrying out microwave roasting treatment on the sludge carbon in an inert atmosphere to obtain the porous multi-element doped sludge carbon-based low-temperature denitration catalyst.

The invention discloses a high-stability MEMS hydrogen sensor and a preparation method thereof. The high-stability MEMS hydrogen sensor is a semiconductor resistance type hydrogen sensor based on a metal oxide gas sensitive coating and sequentially comprises a silicon nitride supporting layer, a Pt / Ti heating electrode, a sensing electrode, a silicon nitride isolating layer and a metal oxide gas sensitive film from bottom to top. The metal oxides are high-purity antimony doped tin dioxide, tetraamino palladium nitrate and tetraammineplatinum nitrate. The preparation method comprises the following steps: mixing high-purity antimony-doped tin dioxide powder, tetraamino palladium nitrate powder and tetraammineplatinum nitrate powder, preparing gas-sensitive slurry from a mixed solution of terpilenol, diethylene glycol butyl ether acetate, ethyl cellulose, dibutyl phthalate and dioctyl phthalate, dispensing the gas-sensitive slurry on a central interdigital electrode area of an MEMS chip, and performing vacuum drying to obtain the gas-sensitive MEMS chip. And performing vacuum standing and slow heating to obtain the sensor. The sensor is low in detection lower limit and stable in resolution ratio after high-humidity aging.

This invention proposes a catalyst component, catalyst, and their applications for olefin polymerization, belonging to the field of olefin polymerization technology. The catalyst component contains products obtained from the reaction of a magnesium source, a titanium source, and an internal electron donor, wherein the internal electron donor comprises furan compounds and diether compounds. The catalyst of this invention exhibits high hydrogen sensitivity and stereoregulation, with a good balance between the two. The molecular weight distribution of the prepared low melt index polymer is broader than that of the high melt index polymer, and the catalyst component of this invention does not contain phthalate compounds (plasticizers).

The invention relates to the technical field of sound insulation boards, in particular to a building energy-saving expandable polystyrene sound insulation board. Comprising the following components in parts by weight: 8 to 12 parts of a composite enhancer, 42 to 48 parts of styrene, 0.1 to 0.5 part of benzoyl peroxide, 0.3 to 0.7 part of an azodiisobutyronitrile foaming agent, 55 to 85 parts of methylbenzene, 2 to 6 parts of silicon dioxide, 3 to 9 parts of talcum powder and 1 to 7 parts of dioctyl phthalate, wherein the composite reinforcer is obtained by mixing acrylic acid and Troger base polyimide according to the mass ratio of 1: (2-3); a composite enhancer is adopted, acrylic acid and Troger base polyimide are introduced into polystyrene, external force is absorbed and dispersed through a flexible segment of the acrylic acid, heat preservation and temperature resistance of the material are improved through temperature resistance and low heat conductivity of the Troger base polyimide, and heat preservation and temperature resistance of the material are improved through binding force of the acrylic acid and the Troger base polyimide. The sound insulation effect of the material is improved.

The invention relates to the technical field of water reducing agents, and discloses a slow-release polycarboxylic acid water reducing agent and a preparation method thereof.The slow-release polycarboxylic acid water reducing agent is prepared by adding polyoxyethylene ether, acrylic acid, hydroxyethyl acrylate, a propylene glycol methyl ether acetate chain transfer agent, monoethylene glycol phthalate, hydrogen peroxide, alkenylated silane and water into a stirrer, stirring, adding an initiator, and stirring to obtain a mixture; and finally, obtaining the slow-release polycarboxylic acid water reducer. Quaternary ammonium salt in the slow-release polycarboxylate superplasticizer increases the dispersity to cement particles, so that the surfaces of the cement particles are slightly positively charged, the fluidity of cement paste is increased, the strength of concrete is improved, and silane contained in the slow-release polycarboxylate superplasticizer can deeply permeate into capillary pore walls of the concrete and chemically react with hydrated cement, so that the strength of the concrete is improved. The silane-modified polycarboxylic acid water reducing agent has the advantages that a polysiloxane interpenetrating network structure is formed, the durability of concrete is improved, the content and substitution degree of silane are increased by a hyperbranched structure in the silane-modified polycarboxylic acid water reducing agent, the silane is hydrolyzed firstly in the hydrolysis process of the water reducing agent, and a good slow-release effect is achieved.