339 results about "Sodium gluconate" patented technology

The invention relates to the field of concrete preparation, and particularly discloses green low-carbon concrete prepared based on recycled aggregate and a preparation method of the green low-carbon concrete. The green low-carbon concrete is prepared from the following raw materials in parts by weight: 10-12 parts of fly ash, 20-30 parts of slag, 80-100 parts of modified recycled aggregate, 5-8 parts of an exciting agent, 15-20 parts of cement, 10-20 parts of water, 1-3 parts of sodium gluconate and 0.5-1.5 parts of a water reducing agent, and the modified recycled aggregate is recycled aggregate subjected to surface activation treatment; the preparation method comprises the following steps: sequentially adding and mixing the fly ash, the slag and the modified recycled aggregate, carrying out dry mixing at a rotating speed of 30-50r / min for 2-3min, adding the exciting agent, the water and the water reducing agent, and uniformly stirring to form a uniform concrete mixture; and curing to obtain the product. The composition can be used for engineering construction and has the advantages of being green, low in carbon and high in compressive strength.

The invention relates to the technical field of reverse osmosis membrane maintenance, in particular to a cleaning scale inhibitor special for a reverse osmosis membrane and application of the cleaning scale inhibitor. The cleaning scale inhibitor provided by the invention comprises an agent A, an agent B and an agent C, the agent A comprises the following components in percentage by mass: 10-20% of organic phosphonic acid, 10-20% of polycarboxylic acid polymer, 5-10% of sulfamic acid, 3-8% of sodium gluconate and the balance of water; the agent B comprises 8-15% of an isothiazolinone bactericide, 5-10% of a nonionic surfactant, 3-8% of a chlorine bactericide, 2-5% of sodium dodecyl benzene sulfonate and the balance of water; and the agent C comprises 10-20% of sodium polyacrylate, 8-15% of sodium hexametaphosphate, 5-10% of citric acid, 3-8% of silicate and the balance of water. The cleaning scale inhibitor provided by the invention has an efficient cleaning effect on various pollutants, is environment-friendly, and does not cause chemical damage to a reverse osmosis membrane.

The invention relates to the technical field of glass cleaning agents, in particular to an environment-friendly cover plate glass cleaning agent and a preparation method thereof. The environment-friendly cover plate glass cleaning agent comprises the following raw materials in percentage by weight: 12-20% of inorganic base, 8-12% of a surfactant, 5-8% of a chelating agent, 3-5% of a humectant, 1-3% of an adsorbent, 1-3% of a dispersing agent, 0.3-1% of a buffering agent and the balance of deionized water, the surfactant is dodecyl glucoside and dodecyl ethyoxyl sulphobetaine, and the weight range ratio of the dodecyl glucoside to the dodecyl ethyoxyl sulphobetaine is (3-1): 1; the chelating agent is one or more of sodium gluconate, sodium polyaspartate and sodium polyepoxysuccinate. According to the present invention, the degradable surfactant and the degradable chelating agent are adopted, and the dispersant is added to modify the nanometer titanium dioxide, such that the low pollution property is achieved while the high decontamination efficiency and the anti-fingerprint ability are considered.

The invention relates to the technical field of alkaline zinc-manganese flow batteries, in particular to an alkaline flow battery based on carbon felt surface functionalization and electrolyte additive collaborative optimization. The surface functionalization of the carbon felt is that the carbon felt is modified by nitrogen-doped carbon dots, so that the pore size of the carbon felt is increased, the pore volume, the specific surface area and the hydrophilicity of the carbon felt are improved, the wettability of an electrolyte and the adsorption capacity to zinc atoms can be enhanced, and more zinc deposition sites are provided. Sodium gluconate is selected as an additive and is coordinated with zinc ions in the negative electrode electrolyte, so that the solvation structure of the zinc ions is changed. Through cooperative regulation and control of carbon felt modification and sodium gluconate, the zinc deposition morphology is changed, the zinc deposition is compact and uniform, the performance of the battery is improved, and the cycle life of the battery is prolonged. The invention has the advantages of outstanding performance, safety, environmental protection, low price and the like.

The invention discloses a high-performance ionic piezoelectric hydrogel system based on molecular network reconstruction and micro-nano structure coordinated regulation and an establishment method thereof, and the establishment method comprises the following steps: S1, mixing acrylamide, polyacrylamide, sodium gluconate and polyvinyl alcohol to prepare a pre-polymerized solution, and adding HCl into the pre-polymerized solution to obtain a mixed solution system; and S2, carrying out gradient cross-linking and ultraviolet curing on the mixed solution system to obtain the high-performance ionic piezoelectric hydrogel system based on molecular network reconstruction and micro-nano structure coordinated regulation. The sensitivity is improved by 66%, and the problem that a traditional material is insufficient in response to weak biological signals (such as pulse micro-vibration) is solved.

The present invention relates to a method of producing a carbonated composite:a. providing a particulate mineral material, wherein the mineral material comprises metal slag, wherein the metal slag comprises steel slag;b. providing a modifier, wherein the modifier comprises sodium gluconate;c. mixing the mineral material and the modifier with water to form a slurry;d. treating the slurry with carbon dioxide, to form a wet solid residue, wherein the concentration of carbon dioxide is greater than about 10 vol%; ande. drying the wet solid residue to form the carbonated composite.

The invention relates to the technical field of building materials, and discloses a steam-curing-free prefabricated concrete low-carbon early-strength water reducing agent which comprises the following components in parts by weight: 50-60 parts of a WPC1000-series polycarboxylic acid water reducing agent; 7 to 9 parts of sodium gluconate; 10 to 15 parts of nano silicon dioxide powder; 1 to 2 parts of perovskite type perovskite; 5-10 parts of slag powder or fly ash; the invention further provides a preparation method of the steam-curing-free precast concrete low-carbon early-strength water reducing agent and application of the steam-curing-free precast concrete low-carbon early-strength water reducing agent. By introducing the low-carbon mineral admixture, the nano silicon dioxide and the perovskite photocatalyst, the early strength of the concrete is improved, the carbon emission is reduced, the concrete is endowed with a self-cleaning function, and the dual goals of environmental protection and efficient construction are achieved.

The invention relates to the technical field of electroplating, in particular to a nickel stripping agent, a preparation method of the nickel stripping agent and a nickel plating layer stripping method. The nickel stripping agent comprises the following raw materials: an oxidizing agent, a complexing agent, a dissolution promoter, a surfactant and a corrosion inhibitor, wherein the mass ratio of the oxidizing agent to the complexing agent to the dissolution promoter to the surfactant to the corrosion inhibitor is (4-15): (3-25): (1-11): (0.01-1): (0.01-5); wherein the oxidizing agent is nitrobenzoic acid; the complexing agent is one or more of 2-amino-2-methyl-1-propyl alcohol, acetylacetone, nitrilotriacetic acid, nitrilotriacetic acid sodium salt, acrylate, sodium gluconate and ethylenediamine hydrochloride; the dissolution promoter is an alcohol ether solvent. According to the nickel stripping agent, the oxidizing agent with relatively low toxicity and a non-toxic or low-toxicity non-volatile complexing system are adopted, nickel can be completely removed, a base material cannot be eroded, and the threat to the health of operators can be remarkably reduced.

The invention relates to the technical field of concrete, in particular to low-magnetism concrete. The low-magnetism concrete is prepared from the following raw materials: Portland cement, ash, fine aggregate, aluminum oxide modified coarse aggregate, an additive, graphene oxide modified basalt fiber and water, wherein the particle size of the fine aggregate comprises the following components in percentage by weight: 20%-50% of the particle size of 1-3mm, 20%-50% of the particle size of 3-5.5 mm and 0%-60% of the particle size of 5.5-10mm; the additive is obtained by compounding a water reducing agent and sodium gluconate.

The invention relates to the technical field of electrolytic copper foil processing, and particularly provides an ultra-low profile RTF copper foil surface treatment process which comprises the following steps of acid pickling, coarsening, curing, ashing, passivation, anti-oxidation, silanization and drying, and a coarsening additive is one or a mixture of two of NaWO4, NaMoO4, D-sodium gluconate and trisodium citrate. Through alternate circulation of multiple roughening and curing processes, the bonding force between crystal grains and the surface of the copper foil is remarkably enhanced, the copper powder falling phenomenon is thoroughly eliminated, and the anti-stripping strength is higher; the reverse copper foil prepared by the production process provided by the invention has ultra-low profile tolerance, the roughened surface Rz is less than or equal to 1.8 mu m, and the peel strength is more than or equal to 0.5 N / mm. The roughness is reduced on the basis of maintaining the peel strength of the copper foil, so that the obtained electrolytic copper foil is more beneficial to high-frequency signal transmission, and the applicability is wider.

The invention discloses food-grade metal surface blackening liquid as well as a blackening process and application. The blackening liquid comprises a basic blackening component and a modified graphene solution, wherein the basic blackening liquid comprises 15-25 g / L of sodium pyrophosphate, 8-12 g / L of sodium molybdate, 20-30 g / L of sodium gluconate, 2-5 g / L of sodium erythorbate, a citric acid / sodium citrate buffer solution, 10-15 ml / L of polyethylene glycol and 0.5-1 ml / L of polysorbate 80; the modified graphene is PEI modified graphene oxide. According to the method, stubborn dirt is cleaned and peeled off through ultrasonic waves, and grease is degraded through photocatalysis of nano TiO2, so that the surface hydrophilicity is improved, and the adsorption uniformity of blackening liquid is enhanced; according to the method, Si-O-Si network crosslinking is optimized through staged heating (80 DEG C to 120 DEG C to 140 DEG C), the hardness and the adhesive force are improved, thermal stress concentration in a traditional process is avoided, meanwhile, raw material decomposition can be avoided at the temperature, and the safety of blackening liquid is further guaranteed.

The invention relates to a decarburization gasification slag green mortar concrete blender and a preparation method thereof. The invention relates to a bacillus pasteurii water-soluble fertilizer which comprises microbial mineralized bacteria liquid of bacillus pasteurii, microcapsules (shells of which are composed of gelatin calcium alginate composite layers and ZrO2 nano-coatings) for encapsulating sodium gluconate, steel slag powder (the particle size is less than 50 microns) subjected to carbon dioxide carbonization treatment, plasma modified powder of which the surface is grafted with a silane coupling agent, and rosin soap, wherein the shells of the microcapsules are composed of gelatin calcium alginate composite layers and ZrO2 nano-coatings; the steel slag powder is subjected to carbon dioxide carbonization treatment; a polycarboxylic acid water reducing agent, a naphthalene water reducing agent and the like. The preparation method comprises the following steps: carrying out mixed culture on the decarburized gasification slag and a microbial mineralized bacterial solution, carrying out plasma treatment on the HPMC, xanthan gum and steel slag powder, mixing the cellulose ether and the starch ether under the assistance of ultrasonic waves, packaging the retarder by a spray drying method, and mixing the modified steel slag powder and the microcapsules according to a specific mass ratio. According to the invention, a microorganism-microcapsule-steel slag synergistic system is combined with a plasma modification technology, so that high performance and greenization of the concrete blender are realized, and the strength, durability and other properties of concrete are improved.

The invention relates to a multifunctional scale inhibition and dispersion agent applied to a reverse osmosis system and a preparation method of the multifunctional scale inhibition and dispersion agent. The multifunctional scale inhibition and dispersion agent comprises the following components in parts by mass: 6-9 parts of CS-GLU, 1.5-2.5 parts of ascorbic acid, 3-4.5 parts of polyaspartic acid, 1-2 parts of sodium gluconate, 2-4 parts of polyethylene glycol, 0.005-0.03 part of nano SiO2, 1-3.5 parts of triammonium citrate, 3-6 parts of acetic acid, 0.2-0.5 part of urea, 1-2.5 parts of EDTA-2Na and 65.47-81.295 parts of deionized water. A traditional scale inhibitor only depends on chemical chelation and has no repair and oxidation resistance. According to the product, chemical scale inhibition and physical repair (film formation and nano filling) are cooperated, and the limitation of a single function is broken through; an anti-oxidation system (ascorbic acid + EDTA) is arranged in the product to replace a dangerous reducing agent, so that the service life of the membrane is prolonged; a traditional scale inhibitor is sensitive to high-valence ions such as Fe < 3 + > and Al < 3 + > and is narrow in applicable water quality range. The charge of the product is adapted to zwitterionic characteristics, and deposition pollution of a traditional anionic scale inhibitor is avoided.

The invention relates to a panel material of a thermal insulation board, which is formed by curing panel slurry. The panel slurry is prepared from 26%-34% of cement, 38%-50% of quartz sand, 3%-10% of secondary coal ash, 2%-4% of silica fume, 0.6%-3% of a water reducing agent, 0.1%-1% of a defoaming agent, 0.1%-2% of an alkaline exciting agent, 0.1%-0.8% of graphene oxide grafted carbon fibers, 0.05%-1.5% of carboxymethylcellulose, 0.05%-1% of sodium gluconate, 0.8%-2.5% of an anti-corrosion inhibitor, 0.5%-2% of low-temperature water-based emulsion and 10%-16% of water. The sum of the percentages of the components is 100%. The panel prepared by the invention has the advantages of high compressive strength, breaking strength and corrosion resistance under the condition of smaller thickness (0.3-2cm), difficulty in cracking during drilling and the like, the service life of the thermal insulation board is prolonged, and the safety of the thermal insulation board is improved.

The invention provides an industrial cleaning agent and a preparation method thereof, and the cleaning agent is prepared from the following raw materials by weight: 0.05-0.1% of sodium hydroxide, 0.2-0.3% of sodium gluconate, 1-2% of secondary alkyl sodium sulfonate, 1.5-2% of polyol, 1-1.5% of amino trimethylene phosphonic acid, 0.3-0.6% of gluconic acid-delta-lactone, 0.6-1% of glycerin, 0.8-1.2% of propylene glycol butyl ether, 0.05-0.075% of a modified polyether defoamer, and the balance of water. And the balance of water. The modified polyether defoaming agent is obtained by sequentially reacting alkenyl polyether with # imgabs0 # and hydrogen-containing silicone oil. The cleaning agent provided by the invention has better defoaming effect, lower corrosivity and higher stability, and also has the advantages that the preparation method is simple and easy to operate, and the cleaning agent is suitable for large-scale industrial production.

The invention belongs to the technical field of silicon material cleaning, and particularly relates to a silicon material cleaning agent and a preparation method and application thereof. The silicon material cleaning agent provided by the invention comprises the following components in parts by mass: 50-60 parts of water; 15 to 30 parts of an acidic etching solution; 10 to 20 parts of a first chelating agent; 10 to 20 parts of a second chelating agent; 0.5 to 5 parts of a surfactant; 5 to 15 parts of a builder; wherein the first chelating agent is selected from at least one of 1-hydroxyethylidene-1, 1-diphosphonic acid or ethylenediaminetetraacetic acid; the second chelating agent is selected from at least one of citric acid, gluconic acid, tartaric acid, malic acid, sodium citrate, sodium gluconate, potassium pyrophosphate and sodium pyrophosphate. The silicon material cleaning agent is used for silicon material cleaning, various metal ions can be cleaned at a time, the silicon material cleaning efficiency is improved, and the industrial cost is effectively reduced.

The application discloses an oil and gas field polymer solution viscosity protection system with improved ferrous ion tolerance, and belongs to the technical field of oil and gas field chemicals.The system comprises the following components in mass percentage: 5-10% of a ferrous ion stabilizer, 10-20% of a free radical capturing agent, 10-20% of a structure reinforcing agent, 5-10% of a synergist, and the balance of water; the ferrous ion stabilizer is at least one selected from sodium gluconate, potassium gluconate, diethylene triamine pentaacetic acid and hydroxyethylidene diphosphonic acid; the free radical capturing agent is a compound containing phenolic hydroxyl; the structure reinforcing agent is an imidazoline compound; and the synergist is an aldehyde compound.The application method of the viscosity protection system is as follows: the viscosity protection system is first added into liquid water, polymer powder is then added, a gel breaker is further added, and stirring is uniformly performed to obtain a polymer solution.The viscosity protection system significantly reduces the influence of ferrous ions on the viscosity of the polymer solution, and improves the application effect of polyacrylamide substances in the field of oil and gas fields.

The invention provides a preparation method of a boron adsorbent based on layered dihydroxide. The preparation method comprises the following steps: firstly, preparing layered dihydroxide LDHs from divalent metal salt M < 2 + > and trivalent metal salt M < 3 + >; then dispersing LDHs in a solvent to obtain slurry, adding a polyhydroxy organic matter into the slurry, and drying to obtain polyhydroxy organic matter intercalated hydrotalcite; the polyhydroxy organic matter is selected from meglumine, sodium gluconate, citric acid and / or tartaric acid, and finally calcining and grinding to obtain the boron adsorbent. According to the preparation method disclosed by the invention, the polyhydroxy organic matter is inserted, so that the obtained product has double effects of intercalation and surface functionalization, and active sites of reaction are increased while the interlayer spacing is increased, so that the adsorption capacity is greatly improved, and the adsorption capacity of the obtained product is remarkably higher than that of other adsorbents based on layered dihydroxide.

The invention relates to the technical field of chemical analysis, in particular to a high performance liquid chromatography detection method for a mixture of D-mannitol and sodium gluconate. According to the method disclosed by the invention, by changing components of a mobile phase and diluting a sample in a proper proportion, complete separation of the D-mannitol and the sodium gluconate in a liquid chromatogram can be achieved, and meanwhile, the D-mannitol and the sodium gluconate are accurately and quantitatively detected. Linear, precision, repeatability, detection limit, quantitation limit and recovery rate experiments are carried out on the method for determining the content of D-mannitol and sodium gluconate, all the experiments meet the requirements of GB / T27404-2008 Laboratory Quality Control Standards, and it is proved that the method for determining the content is scientific and effective. The method disclosed by the invention is simple to operate, and by adopting the method disclosed by the invention, the detection time of each batch of samples is only 15 minutes, so that the detection efficiency is greatly improved.

The invention relates to the technical field of catalyst preparation, and discloses a carbon modified copper-based catalyst and a preparation method and application thereof. The method comprises the following steps: (1) sequentially carrying out coprecipitation and aging on an alkaline precipitant solution, a metal salt solution and an anion modifier solution to obtain an intermediate product I; and (2) under the condition that the oxygen concentration is not higher than 5% by volume, roasting the intermediate product I to obtain the carbon modified copper-based catalyst, the anion modifier solution contains sodium dodecyl diphenyl ether disulfonate and sodium gluconate in a molar ratio of 1: (1-10); the pH value of the anion modifier solution is 9-11; the metal salt solution contains zinc salt, copper salt and aluminum salt. The prepared carbon modified copper-based catalyst has the advantages of high conversion per pass of carbon dioxide, low activation temperature, high methanol selectivity, long-period operation and stable structure.

The invention relates to the technical field of well cementation engineering, in particular to a multi-element micromolecule compounded high-temperature-resistant oil well cement retarder and application thereof. The multi-element micromolecule compounded high-temperature-resistant oil well cement retarder is prepared from the following raw materials in parts by weight: 20 to 30 parts of disodium 1-hydroxyethylidene-1, 1-diphosphonate, 5 to 10 parts of sodium tetraborate, 5 to 10 parts of sodium gluconate, 2 to 5 parts of chromium sulfate and 65 to 130 parts of water. The invention can effectively solve the problem of performance failure of the traditional oil well cement retarder caused by a large temperature difference environment with a bottom hole circulation temperature of more than 220 DEG C and more than 90 DEG C.

The invention relates to the technical field of building materials, and discloses special waterproof concrete for a waterproof curtain based on a mineral admixture and a preparation method of the special waterproof concrete. The metastable state shielding main slurry takes cement, S95-grade slag powder and microbeads as cementing materials, and sodium carbonate, sodium gluconate and salt-tolerant anionic polyacrylamide are used as auxiliary materials; the delayed acid activator is prepared from aluminum sulfate octadecahydrate, citric acid monohydrate and water. The preparation method comprises the steps that the two components are prepared respectively and conveyed through an independent pipeline, and the component B is directly injected into a central flow field of the component A at the tail end of a grouting pipeline. By means of calcium ion shielding and aluminum ion delayed release mechanisms, the contradiction between slurry long-distance conveying fluidity keeping and rapid thixotropic hardening after mixing is solved, and a formed consolidation body has an organic and inorganic interpenetrating network structure, is excellent in anti-seepage performance and is suitable for deep underground engineering waterproof curtain construction.

This invention relates to the field of semiconductor cleaning technology and discloses a cleaning agent for semiconductor silicon wafers and its preparation method. This cleaning agent aims to solve the problem that traditional strong alkaline or phosphate-based wet electronic chemical cleaning agents easily corrode the silicon wafer surface, damage the crystal lattice, and thus affect electrical performance. This cleaning agent utilizes a multi-component synergistic effect: a surfactant system composed of alkyl glycosides and sophorolipids enhances particle wetting and stripping; lipase and silicon-pharmacoprotein precisely catalyze the removal of specific contaminants; sodium gluconate complexes metal ions; gelatin-polyacrylamide copolymer disperses contaminants to prevent secondary contamination; glycerol and trehalose maintain enzyme activity; and ultrapure water ensures the system meets the electronic-grade purity standards for wet electronic chemicals. Overall, it avoids strong alkaline corrosion, maintains the integrity of the silicon wafer lattice, and improves particle removal efficiency, meeting the high standards required for wet electronic chemical-based silicon wafer cleaning agents in advanced processes.

The application belongs to the technical field of concrete admixtures, and particularly relates to a grass-planting concrete admixture and application thereof. The grass-planting concrete admixture comprises the following raw materials in parts by weight: silica fume 80-86 parts, water reducing agent 2-4 parts, accelerator 5-10 parts, adjusting agent 1-2 parts, and reinforcing agent 2-4 parts; the reinforcing agent is prepared by mixing polyacrylamide, EVA emulsion and sodium gluconate at a mass ratio of 1:1:2. The grass-planting concrete admixture is used for preparing concrete, which can effectively improve the strength of the grass-planting concrete, the compressive strength of which is more than 15 MPa, and promote the growth of plants, guarantee the porosity and provide an excellent living environment for the growth of plants, and effectively solve the problems of the prior art.

The invention relates to the technical field of degumming agents, and discloses a preparation process of a degumming agent for a solar photovoltaic silicon wafer. The degumming agent comprises the following components in percentage by weight: 2-8% of tetramethylammonium hydroxide, 3-6% of organic alcohol amine, 0.5-1.5% of alkyl glycoside, 0.2-0.8% of a chelating agent, 0.5-3% of a functional additive and the balance of deionized water, the chelating agent is sodium gluconate; the functional additive comprises a sodium silicate corrosion inhibitor, a thickening agent and a penetrating agent; the preparation method comprises the following steps: S1, adding trimethylamine and epoxy chloropropane into tetrahydrofuran, carrying out stirring reaction at 60-65 DEG C for 8-15 hours, and removing a solvent to obtain a cationized intermediate; s2, adding the cationized intermediate into water, adding sodium carboxymethyl cellulose, uniformly stirring, heating and pressurizing to 120-130 DEG C, stirring and reacting for 8-12 hours, and removing the solvent to obtain the modified sodium carboxymethyl cellulose.

The invention relates to the technical field of concrete admixtures, in particular to a preparation method of a high-performance concrete retarder. According to the method, graft copolymerization and supramolecular chemical modification are organically combined, firstly, straw fibers serve as a matrix and are subjected to free radical graft copolymerization with acrylic acid and acrylamide, carboxyl and amide functional groups are introduced, and nanofibers with a slow release function are formed; then constructing a dynamic network structure with sodium gluconate and zinc ions through supramolecular self-assembly (hydrogen bonds and coordinate bonds), compounding with the modified sweet potato powder, and performing swelling treatment to obtain the retarder. According to the retarder prepared by the method, the initial setting time reaches 9-10 hours, the final setting time reaches 10-11 hours, the compressive strength of 3d exceeds 45MPa, the compressive strength of 28d reaches 75MPa or above, and the retarder has good compatibility with a polycarboxylate superplasticizer and is free of the problem of condensation sensitivity. The method is suitable for the low-carbon fields of maritime work cement, light building materials and the like.

This invention relates to the field of packaging equipment technology, specifically to a quantitative packaging device for sodium gluconate, comprising a bag feeding mechanism. The bag feeding mechanism includes a first frame and a second cylinder. A horizontal plate is fixed to one side of the first frame, and a first cylinder is mounted on the top of the horizontal plate. A first mounting frame is fixed to the output end of the first cylinder, and a mounting plate is hinged to the bottom of the first mounting frame. Multiple sets of floating suction cups are fixed on the mounting plate. One end of the second cylinder is hinged to the first mounting frame, and the other end of the second cylinder is hinged to the mounting plate. The floating suction cup consists of a suction cup body and a base body. The base body is fixed to the mounting plate, and the suction cup body and the base body are slidably connected, achieving airflow through relative sliding. When a packaging bag is adsorbed, the suction cup body and the base body slide relative to each other, automatically cutting off the airflow between them. The suction cup body can still maintain a negative pressure environment, eliminating the need for continuous air supply and solving the problems of high energy consumption and insufficient reliability caused by the reliance on continuous air supply in traditional packaging equipment.

The invention relates to the technical field of building material preparation, and discloses a composite foaming preparation method of a light sound-insulation hollow brick, which comprises the following steps: firstly, preparing a negative coordination precursor solution, forming a complex by using sodium gluconate and borax, and dissolving sodium alginate; performing dry premixing on the lithium salt coagulant, the cement and the mineral admixture; mixing the precursor solution, the dry powder and the prefabricated foam to prepare slurry; after pouring, calcium ions excited by lithium salt are used for replacing borate radicals in the precursor solution, and the slurry is induced to generate rheological mutation in a standing stage, so that bubbles and a hollow structure are locked; and finally, curing and demolding to obtain a finished product. By constructing a negative coordination shielding and ion replacement triggering mechanism, the problems that high-porosity slurry is prone to mold collapse and poor in foam stability are solved, an organic gel network is formed in a matrix, and the acoustic damping performance and mechanical stability of the hollow brick are remarkably improved.

The invention relates to the technical field of low-carbon gelling, in particular to a preparation method of a low-carbon gelling material containing AOD (Argon Oxygen Decarburization) slag solid waste. The preparation method comprises the following steps: adding 50-60 parts of activated AOD slag and 20-30 parts of modified aluminum oxide into 80-100 parts of water, stirring and dispersing to form a matrix suspension, sequentially adding 10-15 parts of biomass ash, 5-8 parts of nano CaCO3 and 3-5 parts of sodium carbonate into the matrix suspension, and stirring at the stirring speed of 200-300 rpm for 30-40 minutes; 0.8-1.2 parts of superfine basalt fibers and 0.3-0.6 part of sodium gluconate are added, the mixture is stirred at the speed of 500-600 rpm for 15-20 min, and the low-carbon cementing material is obtained. The early strength increasing speed of the low-carbon cementing material containing the AOD slag solid waste is increased, and the durability of the low-carbon cementing material containing the AOD slag solid waste under complex environmental conditions is improved.

The application discloses a kind of corrosion and scale inhibitor sulfur removal agent and preparation method thereof, belong to sulfur removal agent technical field, by weight parts including following components: hydroxyl alkyl amine modified triazine compound 30~60 parts, polyaspartic acid scale inhibitor 10~25 parts, sodium gluconate 5~15 parts, ethylenediamine tetramethylene phosphonic acid sodium 3~10 parts, organic phosphonic acid corrosion inhibitor 2~8 parts and water 20~40 parts;The hydroxyl alkyl amine modified triazine compound is prepared by triazine sulfur removal agent and N-methyl diethanolamine or diethanolamine under 50~80 ℃ for 2~4 hours, wherein the molar ratio of triazine sulfur removal agent and hydroxyl alkyl amine is 1:0.3~0.8.The application is prepared by using hydroxyl alkyl amine modified triazine compound as core sulfur removal component, triazine sulfur removal agent and N-methyl diethanolamine or diethanolamine are reacted under specific temperature and time, which greatly improves the capture activity and reaction rate of hydrogen sulfide, and improves water solubility and dispersibility, realizes efficient sulfur removal.