56 results about "TETRASODIUM IMINODISUCCINATE" patented technology

The invention discloses a modified attapulgite filter material for heavy metal wastewater treatment and a preparation method of the modified attapulgite filter material. The modified attapulgite filter material is prepared by the following steps of a, adding attapulgite powder and a silane coupling agent in water for ultrasonic dispersion treatment to prepare modified attapulgite; b, mixing the modified attapulgite with tetrasodium iminodisuccinate to obtain a mixture; and c, adding silica sol in the mixture, and performing pelleting to prepare the modified attapulgite filter material for heavy metal wastewater treatment. The method has the beneficial effects that by utilizing etrasodium iminodisuccinate to modify the attapulgite filter material, the prepared filter material is large in specific surface area and strong in adsorption ability, strengthens the chelation to heavy metal ions, greatly increases the adsorption quantity to the heavy metal ions, can be recycled for many times and cannot generate secondary pollution to environment.

The invention discloses an electroless tin plating formula for a printed circuit board. The formula comprises the following components with the following concentrations: 10-30g / L of stannous ions, 70-130g / L of thiourea, 30-70g / L of methanesulfonic acid, 30-60g / L of citric acid, 20-50g / L of tetrasodium iminodisuccinate, 10-30g / L of carbohydrazide, 10-50mg / L of interfacial agent, 0.05-0.15g / L of bismuth acetate and 20-40g / L of polyamino polyether methylene phosphonate, wherein the component solutions are uniformly mixed and then prepared into an electroless tin plating solution; and the electroless tin plating solution has the following characteristics: tin is stable in tin deposition rate, bivalent tin is not liable to be oxidized into tetravalent tin, and the solution is high in stability. The formula disclosed by the invention contains many complexing agents, the stannous ions are not liable to be oxidized into tetravalent tin, the oxidization of oxygen dissolved in the plating solution can be cancelled by virtue of a reducing agent, the plating solution contains bismuth acetate, a plating layer is a tin-bismuth alloy, and the alloyed plating layer is not liable to grow tin whiskers; and moreover, the electroless tin plating solution has the following characteristics: tin is stable in tin deposition rate, bivalent tin is not liable to be oxidized into tetravalent tin, and the solution is high in stability.

The chelating state micronutrient fertilizer with the insecticidal function comprises trace elements and chelating agents and also comprises botanical pesticides and dispersion agents; the chelating state micronutrient fertilizer is shaped like powder; chelating agents are selected from tetrasodium iminodisuccinate salt and or EDTA (Ethylene Diamine Tetraacetic Acid); the botanical pesticides comprise Cynanchum komarovii Al. extracts and also comprise Stellera chamaejasme extracts and Ageratina adenophora extracts. According to the chelating state micronutrient fertilizer with the insecticidal function, the trace elements are added, trace elements and other nutrients brought by a plant source which serves as the pesticides are contained, the trace elements and the other nutrients can be chelated into the chelating state micronutrient fertilizer, the botanical pesticides are also contained, and accordingly the formula is reasonable, the synergistic effect is obvious, the utilization rate of effective components is high, the pest killing effect is good through due to the double insecticidal mechanism for damaging protective enzyme systems and nervous systems of nematodes and the fumigation action of multiple ingredients, and the botanical pesticides are free of pest resistance. The invention also relates to a production method of the chelating state micronutrient fertilizer with the insecticidal function.

An environment-friendly eluent for treating heavy-metal-polluted soil comprises tetrasodium iminodisuccinate, concentrated nitric acid and water, wherein the mass ratio of each component after preparation is as following: tetrasodium iminodisuccinate 0.18-5 per mill, concentrated nitric acid 0.024-0.6 per mill, and water 994.4-999.796 per mill. The preparation method is as following: 1. putting tetrasodium iminodisuccinate with mass ratio 0.18-5 per mill into a plastic barrel, and adding water with mass ratio 994.4-999.796 per mill into the plastic barrel, then stirring the resultant by a stirrer for 10 min to have the tetrasodium iminodisuccinate fully dissolved; 2. adding concentrated nitric acid with mass ratio 0.024-0.6 per mill into the plastic barrel, and then stirring the resultant by a stirrer for 10 min to obtain the environment-friendly eluent for treating heavy-metal-polluted soil. By the invention, the eluent can restore heavy-metal-polluted soil and can be biodegraded completely without causing a second pollution.

The invention discloses a foam sterilization detergent used for food devices. The detergent comprises, by weight, 20-60 parts of sodium hypochlorite, 3-15 parts of sodium hydroxide, 8-20 parts of sodium lauryl diphenyl ether disulfonate, 2-8 parts of tetrasodium iminodisuccinate, 1-5 parts of sodium polyaspartate and 50-80 parts of deionized water. The foam sterilization detergent has the advantages of one-step cleaning and disinfection, great time shortening, increase of the working efficiency, and reduction of the production cost.

The invention discloses an oilfield formation supermolecular blocking removal and permeation increasing agent and a blocking removal and permeation increasing system and a utilization method thereof.The oilfield formation supermolecular blocking removal and permeation increasing agent is prepared from, by weight, 10%-15% of sulfonated sodium dioctyl succinate, 1%-5% of trisodium nitrilotriacetate, 1%-5% of tetrasodium iminodisuccinate, 5%-10% of sodium polyacrylate, 5%-10% of polyepoxysuccinic acid and the balance water. By the oilfield formation supermolecular blocking removal and permeationincreasing agent, a blocking removal and permeation increasing radius can be safely increased, formation permeability and crude oil fluidity are improved, quick cleaning of an oil well is realized, the oil well recovery rate is increased, and oil-gas output is increased.

The invention discloses an antifouling soaping agent comprising polyoxyethylene ether chain quaternary ammonium salt and a preparation method thereof. The antifouling soaping agent comprises the following components in parts by weight: 2-30 parts of a polyoxyethylene ether chain quaternary ammonium salt cationic surface active agent, 5-20 parts of fatty alcohol-polyoxyethylene ether, 5-15 parts of alkyl glycoside APG, 5-20 parts of sorbitan laurate, 5-17 parts of tetrasodium iminodisuccinate, 3-10 parts of sodium citrate, 3-15 parts of sodium tripolyphosphate, 1-3 parts of a defoamer and the balance of water. The antifouling soaping agent disclosed by the invention has extremely excellent surface activity, is excellent in cleaning ability, and can particularly protect the white texture well, prevent unfixed dyes from sticking to fibers and improve the color and luster degree of fibers. The antifouling soaping agent is simple in preparation method, mild in reaction condition and low in production cost.

The invention relates to an RNA extraction kit suitable for normal-temperature transportation. The kit comprises a lysis binding solution, and the lysis binding solution contains guanidine isothiocyanate with the concentration of 1 to 5 M, sodium thiocyanate with the concentration of 0.2 to 3 M, trihydroxymethyl aminomethane with the concentration of 0.01 to 0.1 M, tetrasodium iminodisuccinate with the concentration of 0.001 to 0.05 M, sodium ascorbate with the mass fraction of 0.05-1%, betaine with the mass fraction of 0.1-2%, Tween 20 with the mass fraction of 1-6%, sodium acetate with the concentration of 0.05 to 0.5 M, and isopropanol withthe mass fraction of 25-55%. The lysis binding solution does not contain toxic organic solvents such as phenol and does not contain reagents such as protease K needing cold-chain transportation, so that the RNA extraction kit can be transported under the condition of normal temperature. The lysis binding solution has the effects of lysis of cells / viruses and promotion of combination of nucleic acid and magnetic beads, can complete lysis and combination in one step, and is more suitable for an automatic nucleic acid extractor. The two protein denaturants are combined for use, and compared with single use of one protein denaturant, the capacity of removing impurities such as protein with complex chemical properties can be enhanced.

The invention relates to cement-based high-permeability crystalline masterbatch concrete. The concrete comprises, by weight, 8-12 parts of high-permeability crystalline masterbatch, 35-50 parts of 60-150 mesh graded silica sand, 0.5-2 parts of re-dispersible adhesive powder, 0.3-0.5 part of water reducing agents, 0.3-0.5 part of antifoaming agents, 0.2-0.4 part of cellulose ether, 40-60 parts of cement, and 80-120 parts of water. According to the cement-based high-permeability crystalline masterbatch concrete and a preparation method thereof, the high-permeability crystalline masterbatch is prepared from sodium silicate, high-activity nanoscale magnesium-oxide and calcium-oxide composite powder and tetrasodium iminodisuccinate chelate, and the concrete prepared on the basis of the high-permeability crystalline masterbatch has the advantages of being high in permeability and excellent in secondary impermeability; the high-activity magnesium oxide and calcium oxide are reacted with silicate to generate chemical crystal, the self-healing performance of the concrete is greatly improved, and the concrete is simple in preparation method and low in cost.

The invention relates to a scale removing agent used in an oil well and a preparation method of the scale removing agent, and belongs to the technical field of cleaning agents of petroleum exploitation equipment. The method provided by the invention adopts three-dimensional envelope type chelating agent tetrasodium iminodisuccinate (IDS), diethylene triamine pentaacetic acid (DTPA), amino trimethylene phosphonic acid (ATMP), sodium ethylenediamine tetramethylene phosphonate and polymaleic acid to prepare the alkaline scale removing agent, and the scale removing agent has strong chelating ability, complexes inorganic scale generated in an oil field through multi-stage ionization, has a better removing effect on the inorganic scale such as carbonate scale and sulfate scale and less corrosivity to the petroleum exploitation equipment, and prolongs a pump inspection cycle in the oil well.

The invention relates to an inactivated virus preservation solution and a preparation method thereof. The inactivated virus preservation solution comprises guanidinium isothiocyanate, trihydroxymethyl aminomethane hydrochloride, tetrasodium iminodisuccinate, an anionic surfactant, a cationic surfactant and dithiothreitol. According to the inactivated virus preservation solution provided by the invention, not only the integrity of viral nucleic acid can be effectively guaranteed , but also the components for inactivating viruses are added, so that the inactivation performance of the viruses is guaranteed, a collected biological sample can be applied to nucleic acid detection, the risk of virus transmission infection is reduced, and subsequent nucleic acid extraction and amplification detection are not influenced.

The invention discloses a synthesis technology of a chelating agent-tetrasodium iminodisuccinate. The tetrasodium iminodisuccinate is obtained through atmospheric production of fumaric acid, ammonium bicarbonate and sodium hydroxide as raw materials. The preparation method is simple, convenient, low in cost and stable in effect; the obtained etrasodium iminodisuccinate is good in quality and high in purity, does not contain toxic substances such as fumaric acid, can be directly mixed with various fertilizers and is used as a fertilizer enhancing chelating agent.

The invention belongs to the field of garden plant cultivation, and more specifically relates to a garden plant growth retardant. Each liter growth retardant contains 200 mg of paclobutrazol, 20 mg of polysorbate, 10 mg of prohexadione calcium, 30 mg of vitamin, 5 mg of rhizoma arisaematis leaves juice, and 10 mg of tetrasodium iminodisuccinate. Under prerequisite that the landscape effect is guaranteed, the garden growth delaying speed is realized by the plant growth retardant, and the maintenance cost can be saved.

An environment-friendly eluent for treating heavy-metal-polluted soil comprises tetrasodium iminodisuccinate, concentrated nitric acid and water, wherein the mass ratio of each component after preparation is as following: tetrasodium iminodisuccinate 0.18-5 per mill, concentrated nitric acid 0.024-0.6 per mill, and water 994.4-999.796 per mill. The preparation method is as following: 1. putting tetrasodium iminodisuccinate with mass ratio 0.18-5 per mill into a plastic barrel, and adding water with mass ratio 994.4-999.796 per mill into the plastic barrel, then stirring the resultant by a stirrer for 10 min to have the tetrasodium iminodisuccinate fully dissolved; 2. adding concentrated nitric acid with mass ratio 0.024-0.6 per mill into the plastic barrel, and then stirring the resultant by a stirrer for 10 min to obtain the environment-friendly eluent for treating heavy-metal-polluted soil. By the invention, the eluent can restore heavy-metal-polluted soil and can be biodegraded completely without causing a second pollution.

The invention discloses a chelating type blocking remover, which is a multifunctional compound composition and comprises the following components in percentage by weight: 5%-30% of scale inhibitor Bis(hexamethylenetriaminepenta(methylenephosphonic acid)), 0%-20% of scale inhibitor polyaspartic acid, 5%-25% of chelating agent tetrasodium iminodisuccinate, 0%-5% of a chelating agent ethylenediaminetetraacetic acid tetrasodium salt, 1%-5% of an active synergist polyquaternium- 37, 1%-5% of a dispersing agent polyacrylamide and the balance of water. The chelating type blocking remover disclosed by the invention is safe, environment-friendly, non-toxic, non-irritant, non-explosive, non-corrosive to equipment, harmless to personnel and easy to degrade, efficient and lasting andcan effectively remove the formation insoluble scale; the construction is convenient; the process is simple; special injection equipment is not needed; the process is directly carried out after the reaction is ended;flowback is not needed; and the labor and the materials are saved.

A natural cleaning and herbicide composition having an quaternary ammonium compound, one or more additional amine-based surfactants, and an herbicidally active limonene component, that synergistically creates an effective COVID-19 disinfectant in wipes, an effective clearer for bulk cleaning applications, as well as an impressive gross soils remover following EPA protocol. The composition may further contain sodium silicate, tetrasodium iminodisuccinate, an ethanolamine, caustic potash, and / or water. A formulation of the present disclosure comprises a mixture of about 74% soft water, about 1% Tetrasodium Iminodisuccinate, about 0.5% Monoethanolamine, about 0.5% Sodium Silicate, about 2% alkali surfactant, about 12% Ethoxylated Amine, about 1% Amine Oxide, about 1% Quaternary Amine, and about 6% Limonene.

The invention discloses a metal cleaning fluid which is used for cleaning stains and corrosion layers on the surface of metal copper. The metal cleaning fluid is characterized by comprising 60-170 parts of oxalic acid, 28-80 parts of citric acid, 45-78 parts of sodium dihydrogen phosphate, 16-48 parts of sodium pyrophosphate, 2-5 parts of tetrasodium iminodisuccinate, 0.3-1.2 parts of dopamine, 0.4-1.8 parts of agar, 110-195 parts of ethanol and 785-950 parts of water. The invention also discloses a cleaning method of the cleaning fluid. The cleaning method comprises the following steps of, S1, preparing the cleaning liquid; S2, carrying out chemical cleaning treatment; S3, carrying out freeze drying; and S4, carrying out injection of high-pressure gas. According to the cleaning fluid and the cleaning method thereof, the surface stains and corrosion products of metal copper materials can be effectively cleaned; and meanwhile, secondary erosion or secondary oxidation corrosion in the final drying process is effectively avoided.

The invention provides a molluscicide. The molluscicide takes an iron phosphate chelate as an effective component, the iron phosphate chelate is formed by chelating iron phosphate and a chelating agent, and the chelating agent comprises one or a combination of more than two of L-glutamic acid-N,N- tetrasodium diacid, methylglycine diacetic acid and tetrasodium iminodisuccinate. According to the invention, a novel molluscicide is created by chelating a natural substance iron phosphate existing in the nature with a biological strong chelating agent GLDA and the like, and the solubility of iron phosphate in soil is improved through the complexing action of the chelating agent, so that iron phosphate is absorbed by crops as a phosphate fertilizer, the problem of degradation residue of iron phosphate in soil is solved, and nutrients are provided for crops. The molluscicide is ensured to be harmless to the ecological environment and safe, and the problems that most molluscicide products arepoisonous and harmful to aquatic organisms such as fishes and wild animals, high in residue, poor in soil degradation and the like and cause ecological pollution to the environment are solved.

The invention provides a fertilizer synergist and a preparation method thereof. The preparation method comprises the following steps: preparing a porous support through sepiolite powder and cottonseedhull powder; mixing the porous support with tetrasodium iminodisuccinate to obtain a first mixture; then mixing bacillus licheniformis, chaetomium globosum, enterococcus bacillus, hyssutella and humic acid to obtain a second mixture; and finally mixing the first mixture, the second mixture and N-cyclohexylmaleimide, and uniformly pelletizing to obtain the fertilizer synergist. The fertilizer synergist has the effect of synergizing fertilizer.

The invention relates to the field of silk fibroin extraction, and discloses an extraction method of wild antheraea pernyi silk fibroin. The extraction method comprises the following steps: degumming and drying tussah silks; extracting the wild antheraea pernyi silk fibroin with a mixed solution system of FeCl2 and tetrasodium iminodisuccinate, and adjusting pH under ultrasonic assistance in an extracting process in order to increase the extraction rate; performing ultrafiltration on a solution undergoing ultrasonic treatment, performing freeze drying on the remaining solution after ultrafiltration, and grinding the obtained wild antheraea pernyi silk fibroin into powder for later use. The method provided by the invention is easy to operate, and has low environmental harm and high protein extraction rate; the obtained silk fibroin has higher purity.

The invention belongs to the technical field of gypsum building materials, and particularly relates to a degradable efficient gypsum retarder as well as a preparation method and application thereof. The degradable efficient gypsum retarder is prepared by compounding polyaspartic acid calcium and tetrasodium iminodisuccinate in a specific ratio, so that the green and environment-friendly propertiesare guaranteed, and the degradable efficient gypsum retarder has an excellent high-efficiency retarding effect. The preparation method comprises the following steps: respectively preparing polyaspartic acid calcium and tetrasodium iminodisuccinate into aqueous solutions with specific concentrations, mixing, and drying, so that the polyaspartic acid calcium and the tetrasodium iminodisuccinate possibly form a chelate with a specific spatial configuration; the obtained finished product has an excellent retarding effect when applied to desulfurized gypsum and phosphogypsum, and the strength performance of gypsum cannot be obviously reduced.

The invention belongs to the technical field of cleaning agents and particularly relates to a water-in-oil type ink cleaning agent and a preparation method thereof. The water-in-oil type ink cleaning agent is characterized by mainly containing the following components in parts by weight: 15-25 parts of turpentine, 13-25 parts of tetrachloroethylene, 1-5 parts of oleic acid, 5-10 parts of isopropanol, 3-7 parts of dibutyl phthalate, 5-7 parts of fatty acid methyl ester ethoxylate, 2-7 parts of apricot glue, 0.5-1.5 parts of tetrasodium iminodisuccinate, 1-3 parts of sodium dodecyl benzene sulfonate, 0.3-1.3 parts of sorbitan trioleate, 1-5 parts of benzotriazole, 3-5 parts of sodium hydroxide, 30-70 parts of water, 7-16 parts of aids and 0.5-1.5 parts of an oxidant, wherein the aids are triethanolamine and n-butyl alcohol. According to the water-in-oil type ink cleaning agent, the problems that a solvent-type ink cleaning agent is inflammable and explosive can be solved, the pollution caused to a production environment and atmosphere is relieved, and the cleaning time is shortened.

The invention relates to the technical field of chelating agents, in particular to an environment-friendly phosphorus-free chelating agent and a preparation method thereof.The preparation method of the chelating agent comprises the following steps that sodium ethylenediamine diphenylacetate, tetrasodium iminodisuccinate and tetrasodium glutamate diacetate are prepared; tetrasodium iminodisuccinate and tetrasodium glutamate diacetate can well integrate iron, calcium and magnesium ions, have a stabilizing effect on hydrogen peroxide, do not replace a previous phosphorus-containing chelating agent with phosphorus, and reduce excessive phosphorus in sewage treatment, and have the beneficial effects that sodium gluconate has high-quality corrosion and scale inhibition effects, so that the stabilizing agent of the chelating agent is improved, and the stability of the chelating agent is improved; the environmental protection effect of the chelating agent can be improved due to corrosion and scale inhibition, citric acid is added, a chelate formed by citric acid and iron ions is low in solubility, a proper amount of ammonium salt is added to generate monoammonium citrate which is chelated with Fe < 3 + > and Fe < 2 + > ions, ammonium ferrous citrate and ammonium ferric citrate which are high in solubility are formed respectively, precipitates appear when rust is removed, and the effect of removing rust is achieved. The use effect of the chelating agent is improved.

A chelating system for inclusion in a composition at least stored in a polymer lined metal passivated steel container which provides for stability of both the composition and the container. The composition preferably is a cleaning composition including a color-changing dye or indicator. The chelating system provides for stable storage of the composition through preventing degradation of the dye / indicator over an extended storage time. The chelating system included in the composition has a low affinity for the passivation metal on the steel container which provides for stability of the polymer liner present over the passivation layer and, thus, provides for the stability of the container. A preferred combination is a cleaning composition including (a) tetrasodium iminodisuccinate as the chelant and (b) a pH sensitive color-changing dye / indicator, in combination with a PET-lined chromium passivated tin-free steel container.

The chelating state micronutrient fertilizer with the insecticidal function comprises trace elements and chelating agents and also comprises botanical pesticides and dispersion agents; the chelating state micronutrient fertilizer is shaped like powder; chelating agents are selected from tetrasodium iminodisuccinate salt and or EDTA (Ethylene Diamine Tetraacetic Acid); the botanical pesticides comprise Cynanchum komarovii Al. extracts and also comprise Stellera chamaejasme extracts and Ageratina adenophora extracts. According to the chelating state micronutrient fertilizer with the insecticidal function, the trace elements are added, trace elements and other nutrients brought by a plant source which serves as the pesticides are contained, the trace elements and the other nutrients can be chelated into the chelating state micronutrient fertilizer, the botanical pesticides are also contained, and accordingly the formula is reasonable, the synergistic effect is obvious, the utilization rate of effective components is high, the pest killing effect is good through due to the double insecticidal mechanism for damaging protective enzyme systems and nervous systems of nematodes and the fumigation action of multiple ingredients, and the botanical pesticides are free of pest resistance. The invention also relates to a production method of the chelating state micronutrient fertilizer with the insecticidal function.

The invention discloses a microbial foliar fertilizer and a preparation method thereof. A formula for the microbial foliar fertilizer comprises the following raw materials in parts by weight: 20-35 parts of animal dung biogas slurry, 1-3 parts of low-molecular-weight organic acid, 10-20 parts of sodium selenite, 0.1-0.5 part of ammonium molybdate, 60-80 parts of potassium fulvate, 1-5 parts of a microbial agent, 1-10 parts of zinc sulfate, 1-5 parts of boric acid, 1-5 parts of an accelerant, 80-100 parts of monopotassium phosphate, 0.5-1 part of manganese sulfate and 10-20 parts of calcium superphosphate, wherein the low-molecular organic acid is composed of diethylamine tetraacetic acid, oxaloacetic acid and citric acid according to a weight ratio of 1: (2-3): (1-1.5); the accelerant is composed of pullulan and tetrasodium iminodisuccinate according to a weight ratio of (0.5-1): (0.3-0.9); and the microbial agent is prepared from Bacillus licheniformis and Bacillus subtilis accordingto a weight ratio of 1: (0.5-0.9). The microbial foliar fertilizer has the double effects of promoting crop growth and preventing and treating plant foliar diseases, greatly reduces the use amount ofchemical fertilizers and pesticides, improves farmland environment quality, and enhances the quality of agricultural products.

The invention provides a stainless steel passivation agent. The stainless steel passivation agent is prepared from the following components in mass by percentage: 5%-30% of citric acid, 5%-20% of phytic acid, 1%-10% of dicumyl peroxide, 1%-20% of silicone, 0.3%-0.6% of tetrasodium iminodisuccinate and the balance of deionized water. A preparation method of the stainless steel passivation agent comprises the following steps that the citric acid, the phytic acid, the dicumyl peroxide, the tetrasodium iminodisuccinate and water-based acrylic polysiloxane are added to the deionized water accordingto the ratio, the mixture is heated up to 50 DEG C and stirred for 20min to form the passivation agent. The stainless steel passivation agent forms a dense protective film on the surface of the stainless steel, and the service life of a stainless steel workpiece is effectively prolonged.

The invention discloses a film removing liquid and method for removing a nitride film layer on the surface of a cobalt-based hard alloy. The film removing liquid does not contain substances such as permanganate, chlorate or hydrogen peroxide, and is composed of sodium hydroxide, sodium percarbonate, tetrasodium iminodisuccinate, sodium lignin sulfonate, graphene oxide powder, isopropanol, ethanol,and deionized water, wherein the deionized water is used as a solvent. According to the film removing liquid, a buckypaper subjected to constant potential cathode polarization treatment is used as aflexible carrier of the film removing liquid, in the film removing process, only the buckypaper absorbing the film removing liquid needs to be used for covering the surface of the nitride film layer,ultrasonic vibration is combined, effective removal of the nitride film layer can be realized, and the damage on the base body cobalt-based hard alloy is extremely weak in the film removing process.

The invention discloses a crystalline self-repairing polymer cement-based waterproof material and a preparation method thereof. The crystalline self-repairing polymer cement-based waterproof materialis prepared from the following raw materials in percentage by mass: 27 to 35 percent of Portland cement, 18 to 24 percent of quartz sand, 0.8 to 1 percent of vinyl silane coupling agent, 6 to 9.5 percent of an excitant, 0.2 to 0.5 percent of an ultraviolet light absorber and 30 to 48 percent of modified polyacrylate emulsion, the preparation method of the modified polyacrylate emulsion comprises the following steps: I, weighing; II, adding an acrylate monomer and methacrylic acid into ethanol, stirring and dissolving to obtain a solution A; III, adding sodium itaconate, sodium p-styrenesulfonate, tetrasodium iminodisuccinate and an initiator into deionized water, and stirring for dissolving to obtain a solution B; and IV, uniformly mixing the solution A and the solution B, transferring into a reaction kettle, and carrying out copolymerization reaction at 70-100 DEG C for 3-6 hours, thereby obtaining the product. According to the invention, structures such as -COONa and -SO3Na are introduced into a copolymer to form a copolymer emulsion with a chelating effect and an emulsifying and dispersing effect, so that a modified polyacrylate-concrete stably combined compact waterproof layeris formed.