27 results about "Vinyl phosphate" patented technology

The invention provides impact-resistant high-toughness plastic as well as a preparation method and application thereof, and relates to the technical field of high polymer materials. Comprising the following raw materials in parts by weight: 35-45 parts of hydroxyl-terminated hyperbranched polycarbonate, 15-25 parts of LDPE (Low-Density Polyethylene) resin, 8-12 parts of inorganic filler, 4-6 parts of isocyano ethyl methacrylate, 1-3 parts of bis (1-vinyl imidazole-2-) ketone, 1-3 parts of bis (trimethylsilylated) vinyl phosphate, 1-3 parts of 1, 3, 5-triglycidyl-S-triazinetrione, 1-3 parts of 3, 3 '-diamino-4, 4'-diphenyl-1, 3, 4-triazole-2-ketone, 1-3 parts of 1, 3, 5-triazole-2-ketone, 1-3 parts of 1, 3 '-trimethylsilylated vinyl phosphate, 1-3 parts of 2, 3'-diphenyl-1, 3, 4, 5- The material is prepared from the following components in parts by weight: 1-3 parts of 4, 4 '-difluorodiphenyl sulfone, 2-4 parts of a coupling agent, 0.5-1.5 parts of an antioxidant, 0.8-1.2 parts of a compatilizer, 0.7-1 part of a catalyst and 0.8-1 part of an initiator. The plastic has the advantages of favorable mechanical properties, favorable heat aging resistance, favorable impact toughness, favorable flame retardancy and favorable environmental friendliness.

The invention discloses high-adhesion port machine lubricating grease and a preparation method thereof, and relates to the technical field of lubricating material preparation and application, the high-adhesion port machine lubricating grease is prepared from the following components by weight: 60-80 parts of base oil, 3-5 parts of a functional copolymer, 0.1-0.6 part of Meso-tetramethyl-meso-tetra (p-aminophenyl) calix [4] pyrrole, 0.1-0.6 part of 1, 2, 4-trimethyl-1, 3, 5-trimethyl-1, 3, 5-trimethyl-1, 3, 5-trimethyl-1, 3, 5-trimethyl-1, 3, 5-trimethyl-1 The lubricating oil comprises the following components in parts by weight: 0.3-0.5 part of 1, 3-diaminothiourea, 3-5 parts of molybdenum sulfide nanosheets, 0.5-1 part of an antirust agent, 0.1-1 part of a dispersing agent, 2-4 parts of an antioxidant and 0.3-0.6 part of modified rosin. The functional copolymer comprises a structural unit introduced by the following monomers: bis (trimethylsilylated) vinyl phosphate, 4-methyl-5-vinylthiazole, N-(4-cyano-3-trifluoromethylphenyl) methacrylamide and vinyl boronic acid pinacol ester. The lubricating grease is high in adhesive force and excellent in extreme pressure wear resistance, salt mist resistance and damp heat resistance.

An extreme-cold resistant low-fume halogen-free flame-retardant polyolefin sheath, a preparation method therefor, and a cable. The sheath comprises the following raw materials in parts by mass: 4-16 parts of an ethylene-vinyl acetate copolymer, 7-13 parts of a phosphate group functionalized linear low-density polyethylene, 9-15 parts of an ethylene-octene copolymer, 5-10 parts of a maleic anhydride-grafted ethylene-methyl methacrylate copolymer, 10-15 parts of magnesium hydroxide, 40-50 parts of aluminum hydroxide, etc. The preparation method for the phosphate group functionalized linear low-density polyethylene comprises: adding a catalyst to a pre-cooled ethylene monomer, adding a vinyl phosphate ester and an initiator after the reaction, and reacting for 1-2 hours at a temperature of 65-75°C and a pressure of 15-35 Mpa and then terminating the reaction, thereby obtaining the phosphate group functionalized linear low-density polyethylene. Compared with unfunctionalized polyethylene, the phosphate group functionalized polyethylene used has greatly improved low-temperature and flame-retardant performance, and can improve the overall flame-retardant and low-temperature performance of the formula.

The invention relates to the technical field of biomedical materials, in particular to multi-material 3D printing bionic gradient soft-hard integrated hydrogel as well as a preparation method and application thereof. Based on a copolymerization system of high-strength supramolecular N-acryloylglycinamide and vinyl phosphoric acid, an NAGA aqueous solution and an NAGA-VPA aqueous solution are printed into hydrogel of a gradient structure by adopting a DLP multi-material printing technology, then the hydrogel is sequentially soaked in a calcium-phosphorus mixed aqueous solution (Ca / P = 1.67), ammonia water, a calcium chloride aqueous solution and deionized water, and the hydrogel is prepared through a hydrothermal method. Therefore, in-situ gradient deposition and curing of hydroxyapatite (HAP) are realized. The multi-material 3D printing bionic gradient soft-hard integrated hydrogel prepared by the method has a continuous biochemical-mechanical gradient, a surface layer low-modulus area is matched with cartilage performance, a deep layer high-mineralization area is integrated with bone tissue, the HAP crystallinity of a transition area is in spatial dependence distribution, and the hydrogel is suitable for osteochondral defect repair and manufacturing of bionic joint prostheses.

The present application relates to siRNA for inhibiting ACVR2A and application thereof, and belongs to the technical field of biotechnology.The present application provides siRNA for inhibiting ACVR2A gene expression, research shows that the siRNA all has high inhibitory activity to the expression of ACVR2A gene and protein.The present application also provides modified siRNA for inhibiting ACVR2A gene expression, the modification includes 2'-methoxy modification, 2'-fluorine modification, phosphorothioate group connection, reverse baseless nucleotide modification, deoxyribonucleotide substitution and / or vinyl phosphate modification, research shows that the modified siRNA all has good ACVR2A inhibitory effect at the concentration of 1nM-10nM.

The invention provides a positive pole piece, a secondary battery and an electronic device, the positive pole piece comprises a positive current collector and a positive material layer located on at least one surface of the positive current collector, the positive material layer comprises a positive active material and a first compound, the first compound comprises at least one of vinyl phosphate, allyl phosphate, vinylene phosphate, diallyl phosphate, styrene phosphate, diphenyl phosphate or stilbene phosphate, and an infrared spectrogram of the positive electrode material layer has infrared characteristic peaks at any two of 1150cm <-1 > + / -10cm <-1 >, 1085cm <-1 > + / -10cm <-1 >, 1600cm <-1 > + / -10cm <-1 >, 1640cm <-1 > + / -10cm <-1 > or 1500cm <-1 > + / -10cm <-1 >. Through the arrangement, the high-temperature cycle performance and the thermal safety performance of the secondary battery can be improved, and the low-temperature performance and the impedance performance are both considered.

The invention discloses an acrylic ester filled flame-retardant battery and a manufacturing method thereof. 30-45 parts of acrylic ester, 20-40 parts of ethyl acetate, 10-15 parts of vinyl phosphate, 3-5 parts of sodium sulfamate and 1-3 parts of sodium p-styrenesulfonate are dehydrated and purified to prepare a flame-retardant mixing agent; the preparation method comprises the following steps: adding the raw materials into a mixing reaction kettle in a low-humidity environment at room temperature, mixing, stirring for 2 hours, filling into a sealing barrel, extruding out with inert gas when in use, injecting into a soft package battery which absorbs electrolyte after liquid injection, sealing, putting the battery into a cabinet, and carrying out formation in a hot-pressing formation cabinet, the surface of the battery is filled with the flame-retardant mixing agent, and the flame-retardant mixing agent is melted at high temperature and extruded and flattened by a pressure formation plate, so that a complete flame-retardant covering battery cell is formed in the battery. The surface of the roll core is filled with the acrylate flame retardant, so that the battery is prevented from detonation due to large-area combustion and too high temperature, and the purpose of reducing the combustion risk is achieved.

The invention belongs to the technical field of gel electrolytes, and particularly relates to an intrinsic flame-retardant gel polymer electrolyte, a preparation method thereof and a battery. The intrinsic flame-retardant gel polymer electrolyte comprises a flame-retardant polymer and an electrolyte, and the flame-retardant polymer comprises the following raw material components: diethyl vinyl phosphate, methyl methacrylate and polyethylene glycol dimethacrylate, diethyl vinyl phosphate is chemically bonded in a polymer network formed by cross-linking polymerization of methyl methacrylate and polyethylene glycol dimethacrylate through an in-situ thermal polymerization reaction, and the volume ratio of the dosage of methyl methacrylate to the dosage of polyethylene glycol dimethacrylate to the dosage of diethyl vinyl phosphate is (1-3): 1: 1. The electrolyte can inhibit a combustion chain reaction under extreme conditions without depending on an additional flame retardant additive, and can realize collaborative optimization of intrinsic flame retardant performance and electrochemical performance on the premise of not influencing an ion transmission channel of the electrolyte.

The invention discloses a phosphate type polycarboxylate superplasticizer with a slow release function and a preparation method thereof, a concrete admixture composition and application thereof, and belongs to the technical field of phosphate type polycarboxylate superplasticizers, the phosphate type polycarboxylate superplasticizer comprises (a) carboxylic acid monomer units accounting for 70-85% of the total molar ratio; (b) a vinyl phosphoric acid monomer unit accounting for 2-8% of the total molar ratio; (c) a functionalized polyether macromonomer unit which accounts for 10-25% of the total molar ratio and has a structural general formula of CH2 = C (R)-C (= O)-O-(CH2) n-C (= O)-O-(CH2CH2O) m-CH2CH2-O-P (= O) (OH)-OH; wherein R is H or CH3, n is equal to 1-3, and m is equal to 10-40. According to the invention, slow release of the polycarboxylic acid water reducing agent is realized, and the workability maintaining capability of mud-containing concrete in high-temperature long-distance transportation is remarkably improved while the high water reducing rate is maintained.

The present disclosure relates to a method for preparing a cytidine vinyl phosphate compound, comprising contacting a compound represented by formula (I) with an ammonia source compound in an organic solvent under aminolysis reaction conditions; in the compound represented by formula (I), R1, R2, R5, R6, R8 and R9 are each independently hydrogen, methyl or ethyl; R3 and R4 are each independently one of hydrogen, halogen, hydroxyl, protected hydroxyl, C1-C3 alkyl, C1-C3 alkoxy, substituted C1-C3 alkyl, substituted C1-C3 alkoxy; each R7 is independently one of hydroxyl, protected hydroxyl, C1-C3 alkyl, C1-C3 alkoxy, substituted C1-C3 alkyl, substituted C1-C3 alkoxy; R 10 The present disclosure also relates to the use of the cytidine vinyl phosphate compound prepared by the method.

The invention discloses a self-cleaning antifouling fabric and a preparation method thereof, and relates to the field of textile fabrics. When the self-cleaning antifouling fabric is prepared, hydroxylated multi-walled carbon nanotubes, N-methyldiethanolamine and diethyl vinyl phosphate are subjected to a reaction, and pre-modified multi-walled carbon nanotubes are obtained; reacting the pre-modified multi-walled carbon nanotube with sodium 2-bromoethanesulfonate to obtain a modified multi-walled carbon nanotube; the preparation method comprises the following steps: reacting 1, 3, 5, 7-tetramethylcyclotetrasiloxane with 1, 3-bis (3-aminopropyl) tetramethyldisiloxane to obtain amino-terminated hydrogen-containing silicone oil; reacting hexamethylenediamine, double-end amino hydrogen-containing silicone oil and adipic acid to obtain modified polyamide; the modified polyamide and the modified multi-walled carbon nanotubes are subjected to ball milling and then subjected to electrostatic spinning, and spinning fibers are obtained; and reacting the spinning fiber with vinyl silicone oil, and spinning and weaving by using a spinning machine to prepare the self-cleaning antifouling fabric. The self-cleaning antifouling fabric prepared by the invention has excellent self-cleaning antifouling, antistatic, flame-retardant and mechanical properties.

The application provides a positive electrode sheet, a secondary battery and an electronic device, comprising a positive electrode current collector and a positive electrode material layer located on at least one surface of the positive electrode current collector, the positive electrode material layer comprising a positive electrode active material and a first compound, the first compound comprising at least one of ethylene phosphate, allyl phosphate, vinylidene phosphate, diallyl phosphate, phenylethylene phosphate, diphenyl phosphate or diphenyl ethylene phosphate, and the infrared spectrum of the positive electrode material layer has infrared characteristic peaks at any two of 1150 cm ‑1 ±10 cm ‑1 , 1085 cm ‑1 ±10 cm ‑1 , 1600 cm ‑1 ±10 cm ‑1 , 1640 cm ‑1 ±10 cm ‑1 or 1500 cm ‑1 ±10 cm ‑1 . Through the above setting, the high-temperature cycle performance and thermal safety performance of the secondary battery are improved, and the low-temperature and impedance performance are considered.

The invention provides a nucleoside phosphoramidite compound, which is a compound of a 2 '-phosphoramidite group and 3'-modified 5 '-(E)-vinyl phosphate. The nucleoside phosphoramidite compounds of the invention can be used for incorporation into a terminal position of an oligonucleotide such that the modified oligonucleotide hybridizes to a portion of the target mRNA, resulting in loss or down-regulation of normal function of the target mRNA.

The invention relates to a flame-retardant spandex fiber and a preparation method thereof, and belongs to the technical field of spandex fibers. The preparation method comprises the following steps: S1, under the action of a photoinitiator, 1, 4-dimercapto-2, 3-butanediol and dimethyl vinyl phosphate are subjected to a photochemical reaction in a solvent, and a phosphorus / sulfur flame retardant containing hydroxyl is obtained; s2, under the action of a catalyst, a hydroxyl-containing phosphorus / sulfur flame retardant, diisocyanate and polyether glycol react in a solvent, and a flame-retardant polyurethane prepolymer is obtained; s3, carrying out chain extension reaction and neutralization reaction on the flame-retardant polyurethane prepolymer to obtain a flame-retardant polyurethane fiber-forming polymer; and S4, preparing the flame-retardant polyurethane fiber-forming polymer into a spinning solution, and carrying out dry spinning to obtain the flame-retardant polyurethane fiber. Phosphorus / sulfur-containing flame-retardant groups in the flame-retardant spandex fiber are combined with macromolecular chain segments of the spandex fiber through covalent bonds, so that the flame-retardant spandex fiber is good in stability and good in washing resistance.

The invention belongs to the technical field of nylon materials, and particularly discloses a high-temperature-resistant and flame-retardant nylon brush wire and a preparation method thereof, and the high-temperature-resistant and flame-retardant nylon brush wire comprises the following components by weight: 80-90 parts of PA6; 8-10 parts of modified carbon fiber; 0.3 to 0.5 part of an initiator; 6-8 parts of a toughening agent; 0.2 to 0.3 part of an antioxidant; wherein the modified carbon fiber is a vinyl phosphate-containing ionic liquid modified carbon fiber material, and the high-temperature-resistant and flame-retardant nylon brush wire provided by the invention has excellent high temperature resistance and flame retardance.

The invention relates to a divisional application of which the application number is 202411350349.8. The invention relates to a preparation method of a cytidine vinyl phosphate compound, which comprises the step of contacting a compound shown in a formula (I) with an ammonia source compound in an organic solvent under an ammonolysis reaction condition, in the compound as shown in the formula (I), R1, R2, R5, R6, R8 and R9 are respectively and independently hydrogen, methyl or ethyl; r3 and R4 are respectively and independently one of hydrogen, halogen, hydroxyl, protected hydroxyl, alkyl with 1 to 3 carbon atoms, alkoxy with 1 to 3 carbon atoms, substituted alkyl with 1 to 3 carbon atoms and substituted alkoxy with 1 to 3 carbon atoms; each R7 is independently one of a hydroxyl group, a protected hydroxyl group, a C1-C3 alkyl group, a C1-C3 alkoxy group, a substituted C1-C3 alkyl group, and a substituted C1-C3 alkoxy group; and R10 is hydrogen or methyl. The invention also relates to application of the cytidine vinyl phosphate compound prepared by the method.

The invention relates to the technical field of coatings, in particular to a high-temperature-resistant water-based coating and a preparation method thereof.The high-temperature-resistant water-based coating is prepared from, by weight, 100 parts of water-based organic silicon resin, 10-18 parts of high-temperature-resistant filler, 5-8 parts of rutile titanium dioxide, 3-5 parts of zirconium dioxide powder, 3-5 parts of water-based dispersing agent, 2-3 parts of aluminum silicate fiber, 1-2 parts of propylene glycol phenyl ether and 15-20 parts of deionized water. The water-based dispersing agent disclosed by the invention is environment-friendly, efficient and high in compatibility, and the water-based dispersing agent is prepared by taking methylene succinic anhydride, vinyl phosphate, azodiisobutyronitrile, PEGMA, octamethylcyclotetrasiloxane, a silane coupling agent and tetramethylammonium hydroxide as raw materials to react; rutile titanium dioxide and zirconium dioxide powder can be effectively dispersed in the high-temperature-resistant water-based paint, and the gravity settling prevention effect is remarkable.

The application provides a cyclic phosphate additive, which has a structure as shown in formula (I). The application also provides a preparation method of the cyclic phosphate additive, and the cyclic phosphate additive is prepared by using phosphorus oxychloride and ethylene glycol as raw materials, and through reaction process control, the ethylene chlorophosphate is obtained by one-step ring formation, and the target product is obtained by further substitution reaction of the ethylene chlorophosphate and alcohol. The preparation method of the cyclic phosphate provided by the application has the advantages of mild reaction condition, high yield, few by-products and simple purification; and the substitution reaction of the ethylene chlorophosphate and ROH does not involve reaction selectivity, has high raw material utilization rate, simple process operation, high efficiency, and is more suitable for industrialized production and application.

The application discloses a phosphate type polycarboxylic water reducing agent with slow-release function, a preparation method thereof, a concrete admixture composition and application thereof, and belongs to the technical field of phosphate type polycarboxylic water reducing agents, and comprises (a) a carboxylic monomer unit, accounting for 70-85% of the total mole ratio; (b) a vinyl phosphate monomer unit, accounting for 2-8% of the total mole ratio; and (c) a functional polyether macromonomer unit, accounting for 10-25% of the total mole ratio, and the structural general formula is as follows: CH2=C(R)-C(=O)-O-(CH2) n -C(=O)-O-(CH2CH2O) m -CH2CH2-O-P(=O)(OH)-OH; wherein R=H or CH3, n=1-3, and m=10-40. The application realizes slow release of the polycarboxylic water reducing agent, significantly improves the workability maintenance capability of the mud-containing concrete in high-temperature long-distance transportation while keeping high water-reducing rate.

The invention relates to an anionic hyperdispersant, modified phthalocyanine blue and a preparation method and application thereof, the hyperdispersant is formed by copolymerization of styrene, a polymerizable monomer and a cross-linking agent, and the polymerizable monomer is selected from sodium vinyl phosphate, sodium acrylate, sodium vinyl benzoate or sodium p-styrenesulfonate; the cross-linking agent is selected from N, N-methylene bisacrylamide or divinyl benzene; preferably, the hyperdispersant is formed by copolymerization of styrene, sodium acrylate and N, N-methylene bisacrylamide. The modified phthalocyanine blue comprises phthalocyanine blue and an anionic hyperdispersant coating the surface of the phthalocyanine blue, the obtained hyperdispersant can improve the dispersibility of the phthalocyanine blue pigment, and the obtained modified phthalocyanine blue is high in coloring degree and high in stability in water and has higher application value.

The present invention relates to the field of coating technology, specifically to a high-temperature resistant water-based coating and a preparation method thereof. The high-temperature resistant water-based coating comprises the following components by weight: 100 parts of a water-based silicone resin, 10 to 18 parts of a high-temperature resistant filler, 5 to 8 parts of rutile titanium dioxide, 3 to 5 parts of zirconium dioxide powder, 3 to 5 parts of an aqueous dispersant, 2 to 3 parts of aluminum silicate fiber, 1 to 2 parts of propylene glycol phenyl ether, and 15 to 20 parts of deionized water. The present invention is environmentally friendly, highly efficient, and highly compatible. The aqueous dispersant is prepared by reacting methylene succinic anhydride, vinyl phosphate, azobisisobutyronitrile, PEGMA, octamethylcyclotetrasiloxane, a silane coupling agent, and tetramethylammonium hydroxide as raw materials. The aqueous dispersant can effectively disperse rutile titanium dioxide and zirconium dioxide powder in the high-temperature resistant water-based coating of the present invention, and has a significant anti-gravity sedimentation effect.

The present invention provides an optical copolymer flame-retardant board, a preparation method thereof, and a reactive extrusion device, relating to the technical field of acrylic material production. The preparation method comprises the following steps: placing a mixture comprising vinyl phosphate, methyl methacrylate, a comonomer, and a functional monomer into a prepolymerization reactor for polymerization to obtain a first prepolymer; mixing the mixture comprising methyl methacrylate, a comonomer, and a functional monomer with the first prepolymer, and placing the mixture into a tubular reactor for polymerization to obtain a second prepolymer; and mixing the mixture comprising methyl methacrylate, a comonomer, and a functional monomer with the second prepolymer, and placing the mixture into a devolatilization extruder. After discharge, the material is granulated and pressed to obtain an optical copolymer flame-retardant board. The preparation method of the optical copolymer flame-retardant board provided by the present invention incorporates phosphate into PMMA polymer chains, resulting in an optical copolymer flame-retardant board with high transparency and excellent flame retardancy.

The invention relates to the technical field of water softening, in particular to hydrogel with a calcium ion adsorption function and preparation and application thereof. The preparation method comprises the following steps: firstly, uniformly mixing sodium acrylate with sodium vinyl phosphate to obtain a first mixed solution; then adding a cross-linking agent, an initiator and styrene into the first mixed solution to obtain a second mixed solution; and finally, initiating a polymerization reaction of the second mixed solution to obtain the hydrogel with the calcium ion adsorption function. According to the hydrogel, sodium acrylate and vinyl phosphoric acid are used as functional monomers, and styrene is introduced in a polymerization process, so that the strength of the hydrogel is improved, and the hydrogel is prevented from being too soft and broken in a use process.

This invention belongs to the field of oilfield development technology, specifically relating to a cationic clay stabilizer and its preparation method. The clay stabilizer comprises the following components by weight: 10-20 parts of a copolymer of 3-chloro-2-hydroxypropylmethyldiallyl ammonium chloride / dimethyldiallyl ammonium chloride, and 3-10 parts of vinyl phosphate-modified silica. The preparation method is as follows: the copolymer and modified silica are added together to a stirrer, heated to 50-60°C and stirred at 100-300 r / min, then cooled to 40-45°C and stirred again at 300-600 r / min to obtain the clay stabilizer. The clay stabilizer of this invention exhibits excellent comprehensive performance, high anti-swelling rate (greater than 92% even at 150°C, and higher than 93% after three water washes), good salt and acid / alkali resistance, and significantly improves the hydrophobicity of clay surfaces, making it suitable for complex oil reservoir conditions such as high temperature and high salinity.

The invention belongs to the technical field of artificial boards, and particularly discloses an antibacterial flame-retardant gasified slag-based artificial board and a preparation method thereof, and the artificial board is prepared from the following raw materials: antibacterial flame-retardant modified gasified slag, recycled fibers and waterborne polyurethane glue. Wherein the antibacterial flame-retardant modified gasified slag is prepared by performing activation, sulfydryl modification, phosphoric acid modification and acylating chlorination treatment on gasified slag and finally reacting with polyhexamethylene guanidine hydrochloride. Vinyl phosphoric acid is grafted to the surface of sulfydryl silane modified gasified slag through click reaction, acylating chlorination treatment is further carried out, reaction with polyhexamethylene guanidine hydrochloride is carried out, antibacterial flame-retardant modified gasified slag is obtained, and then the antibacterial flame-retardant modified gasified slag is mixed with recycled fibers and waterborne polyurethane glue to prepare the artificial board, so that the artificial board has excellent flame-retardant and antibacterial performance; the defects in the prior art are overcome.

The invention provides an embolism microsphere as well as a preparation method and application thereof. The embolism microsphere is prepared by polymerizing sodium vinyl phosphate and sodium acrylate in a molar ratio of 1: (6-12). The obtained embolism microspheres have large drug loading capacity, so that the treatment effect can be improved.

The preparation method comprises the following steps: carrying out free radical addition polymerization on a phosphoric acid small monomer consisting of ethylene phosphoric acid, vinyl phosphate and cis-propenyl phosphoric acid and unsaturated polyoxyethylene ether under the action of a chain transfer agent and an initiator under inert shielding gas to obtain the geopolymer-oriented delayed coagulation and viscosity reduction type phosphoric acid small molecular water reducing agent, wherein the free radical addition polymerization is carried out on the phosphoric acid small monomer consisting of ethylene phosphoric acid, vinyl phosphate and cis-propenyl phosphoric acid and the unsaturated polyoxyethylene ether, so as to obtain the geopolymer-oriented delayed coagulation and viscosity reduction type phosphoric acid small molecular water reducing agent. And adjusting the pH value to 6.0-7.0 by using an alkali solution to obtain the retarding and viscosity reducing type phosphate group small molecule water reducing agent. According to the present invention, the water reducing agent has strong adsorption performance and strong retarding and viscosity reducing performance in the geopolymer system, the unsaturated polyoxyethylene ether is adopted as the macromonomer of the water reducing agent, the side chain can provide the steric hindrance effect after the polymerization so as to achieve the dispersion effect, and the synergistic effect of the unsaturated polyoxyethylene ether and the water reducing agent achieves the retarding and viscosity reducing purposes in the geopolymer.