78 results about "Aziridine" patented technology

The invention relates to aziridinyl-functional organic compounds comprising a group Z of Formula (I1), wherein n is an integer ranging from and including 1 up to and including (100), and R' is selected from the group consisting of hydrogen, methyl and C2-C4 saturated aliphatic hydrocarbyl. The invention further relates to particles, composition, cured forms of the aziridinyl-functional organic component, the particles and the composition. The invention further relates to an article.

The invention provides photosensitive resin, an anti-dazzle film, a preparation method of the anti-dazzle film and a degradation method of the anti-dazzle film, and relates to photosensitive resin in the field of display and optical film materials. The photosensitive resin is prepared by reaction of raw materials including a urethane acrylate oligomer, an aziridine compound and an acrylic monomer, and the molecular structure of the photosensitive resin has a beta-amino ester bond and an ultraviolet-curable acrylate group. The degradable photosensitive resin is provided by introducing beta-amino ester bonds into the photosensitive resin, so that the anti-dazzle film prepared from the coating composition containing the photosensitive resin can be quickly hydrolyzed and degraded under a mild hydrothermal condition, the problem of pollution of a polymer coating in electronic waste is fundamentally solved, and the anti-dazzle film has the advantages of high anti-dazzle performance and the like. And the environmental problem caused by the method can be effectively relieved.

The invention discloses a universal polymer force-sensitive cross-linking agent based on combination of a force-sensitive group and a bis-aziridine cross-linking function, and a preparation method and application thereof. The cross-linking agent is prepared by esterification of the force-sensitive group and a bis-aziridine group. The method comprises the following steps: in a nitrogen environment, carrying out a reaction on a force sensitive group, 4-[3-(trifluoromethyl) diazo-3-yl] benzoic acid, 4-dimethylaminopyridine (DMAP) and 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide hydrochloride (EDC-HCl) in anhydrous dichloromethane; and extracting the obtained mixture for three times, performing column chromatography purification on the obtained mixture on a silica gel column by using an eluent, and spin-drying to obtain a final product. The mechanical response sensitivity and structural stability of the material are remarkably improved, a mechanical force sensitive group introduction strategy suitable for various polymer systems is established, and a new technical path and theoretical support are provided for multifunctional design and wide application of the stress sensitive material.

This invention discloses an acid and alkali resistant polyamide membrane and its preparation method. The method is as follows: S1: Immerse the ultrafiltration base membrane in an aqueous sodium hydroxide solution for soaking and then set aside; S2: Treat the base membrane with a mixed aqueous solution of polyamine and aziridine crosslinking agent; S3: Wet the base membrane in an organic phase solution of polyacrylamide monomer to obtain a polyamide composite membrane; S4: Immerse the prepared polyamide composite membrane in an alcoholic solution of hydroxymethyl crosslinking agent, then dry it in a forced-air drying oven, and after washing with water, obtain the acid and alkali resistant polyamide membrane. This application uses two crosslinking agents, aziridine and hydroxymethyl, which can undergo specific crosslinking reactions with the carboxyl groups inside the polyamide membrane, to directly perform dual crosslinking modification on the membrane interior and surface, without introducing other polymer materials to avoid excessive increase in membrane permeation resistance. The polyamide membrane prepared by this method has both good acid and alkali resistance and water permeability.

The present invention relates to a multiaziridine crosslinking composition, characterized in that the composition is an aqueous dispersion having a pH ranging from 9 to 14 and comprising a multiaziridine compound in dispersed form, wherein such multiaziridine compound has: a. from 2 to 6 of the following structural units A: (see Formula) (A) wherein R1, R2, R3 and R4 are H m is 1, R' and R'' are in accordance with (1) or (2): (1) R' = H or an aliphatic hydrocarbon group containing from 1 to 14 carbon atoms, and R'' = an alkyl group containing from 1 to 4 carbon atoms, CH2-O-(C=O)-R''' or CH2-O-R'''', wherein R''' is an alkyl group containing from 4 to 12 carbon atoms and R'''' is an alkyl group containing from 1 to 14 carbon atoms, (2) R' and R'' together form a saturated cycloaliphatic hydrocarbon group containing from 5 to 8 carbon atoms; b.one or more linking chains where each of these linking chains links two of the structural units A; and c. a molecular weight in the range of 600 to 10000 Daltons.

The invention discloses a surface-treatment-free water-based acrylate adhesive for a PVC (polyvinyl chloride) floor and a preparation method of the surface-treatment-free water-based acrylate adhesive, and belongs to the technical field of polymer adhesives. The adhesive comprises the following raw material components: 0.5-15% of ester-soluble chlorinated polypropylene and 26-32% of chlorine; 0.5-15% of acrylic acid; 1-5% of ethyl acrylate; 65 to 95% of butyl acrylate; 0.5 to 3 percent of nano ZnO emulsion; 0.5 to 2% of an aziridine cross-linking agent; 1-5% of a nonionic surfactant; 0.1-1% of a water-soluble initiator; wherein the ester-soluble chlorinated polypropylene is introduced by being dissolved in a mixed monomer of ethyl acrylate and butyl acrylate in advance. The obtained adhesive is good in stability and high in initial adhesion, surface treatment-free adhesion is realized, and the initial adhesion and cohesion are balanced; meanwhile, the coating has excellent heat resistance and creep resistance, is a full-water-based system, is extremely low in VOC content, is green and environment-friendly, and has important industrial application value.

The invention relates to a novel chemical cross-linking agent with mass spectrum fragmentable trehalose disaccharide as a skeleton structure and a preparation method thereof. The cross-linking agent disclosed by the invention has the following characteristics: 1) trehalose disaccharide is used as a skeleton structure, so that the cross-linking agent has excellent biocompatibility; 2) the trehalose skeleton has a pair of symmetrical mass spectrum fragmentable glucosidic bonds, so that a cross-linked peptide fragment can be simplified into a conventional peptide fragment modified by a cross-linking agent fragment; 3) the enrichment of the cross-linked peptide fragment can be realized by the trehalose skeleton under the condition of not adding an enrichment handle; and 4) active groups of the cross-linking agent comprise but not limited to a plurality of reactive groups such as succinamide ester, diaziridine, phenylsulfonyl fluoride, hydrazide group, amino group, hydroxylamine group and the like, and chemical cross-linking of a plurality of amino acids except lysine is realized. The trehalose cross-linking agent disclosed by the invention is applied to the field of proteomics, and provides technical support for realizing large-scale analysis of a protein complex in a complex sample, spatial structure analysis of protein and a protein-protein interaction network.

The invention discloses C2-quaternary carbon amino sugar as well as a preparation method and application thereof. According to the preparation method, C2-position functionalized glyene is taken as a raw material, di-tert-butyldiaziridone is taken as a nitrogen source, and a double amination reaction of unsaturated bonds of sugar rings is realized by utilizing a copper-catalyzed nitrogen-nitrogen bond activation strategy, so that the C2-quaternary carbon amino sugar compound is constructed. In-vitro antifungal activity research results show that the C2-quaternary carbon amino sugar has certain inhibitory activity on tested fungi, and the compounds I-2 and I-3 show good broad-spectrum antibacterial biological activity and can be used as an agricultural bactericide. The C2-quaternary carbon amino sugar developed by the invention has the remarkable characteristics of simple and efficient synthesis method, cheap and easily available raw materials, mild reaction conditions and the like, and has a good application prospect.

The invention discloses a double-sided polyurethane foam adhesive tape with strong environmental adaptability, and relates to the technical field of polyurethane foam adhesive tapes, the double-sided polyurethane foam adhesive tape comprises a base material layer, bonding layers and an environmental adaptation enhancer, the bonding layers are mounted on two sides of the base material layer, and the environmental adaptation enhancer is added in the base material layer and the bonding layers. The base material layer is composed of open-cell polyurethane foam, the density of the polyurethane foam is 30-80 per cubic meter, the average cell diameter of the polyurethane foam is 50-300 microns, the compression resilience rate of the polyurethane foam is 95-90%, the bonding layer is made of a polyurethane-based pressure-sensitive adhesive, the environmental adaptation enhancer is composed of one or more of a weather-resistant agent, a plasticizer or a cross-linking agent, and the adhesive layer is made of a polyurethane-based pressure-sensitive adhesive. The adhesive layer comprises a weather-resistant agent and a cross-linking agent, the weather-resistant agent accounts for 0.5-3% of the total mass of the adhesive layer, the plasticizer accounts for 1-5% of the total mass of the base material layer, the polyester plasticizer comprises a glass transition temperature of-35 DEG C to-40 DEG C, and the cross-linking agent comprises an aziridine compound accounting for 0.1-1% of the total mass of the adhesive layer.

The present disclosure relates to a separator for a rechargeable battery and a rechargeable battery including the same. A separator for a rechargeable battery includes a porous substrate and a coating layer on at least one surface of the porous substrate. The coating layer includes a crosslinking product of a binder and a crosslinking agent, and a filler. The binder includes a (meth) acrylic binder including a first structural unit derived from (meth) acrylic acid, a (meth) acrylate, or a salt thereof, a second structural unit derived from a hydroxyalkyl (meth) acrylate, and a third structural unit derived from a (meth) acrylamide sulfonic acid or a salt thereof. The cross-linking agent comprises an aziridine cross-linking agent, the filler comprises a mixture of a first filler and a second filler, the first filler is an inorganic filler, and the second filler is a fibrous filler.

The invention discloses a synthesis method and application of carbamate. The synthesis method of the carbamate comprises the following steps: dispersing an aziridine compound, amine, an organic strong base and a 4A molecular sieve in a solvent, and introducing carbon dioxide for reaction to obtain the carbamate. The aziridine compound, carbon dioxide and amine are used as raw materials to synthesize carbamate, and the method has the advantages of mild reaction conditions, simple and easily available raw materials, high yield, simple operation, good reaction region selectivity, safety, environmental protection and the like, is easy for industrial production, and has wide application prospects in the fields of organic synthesis, fine chemical engineering, medicine and health and the like.

The present application relates to a kind of water-based polyurethane waterproof coating applied with waterproofing membrane, including by mass fraction: polyether polyol 50~250 parts, diisocyanate 10~60 parts, modified crosslinking agent 1~10 parts, 1,4-butanediol 1~20 parts, ethylenediamine 2~10 parts, trimethylolpropane 2~10 parts, catalyst 2~10 parts, triethylamine 2~10 parts, organic solvent 30~100 parts, rutile titanium dioxide 10~100 parts, filler 100~800 parts, environmental protection type film forming aid 10~100 parts, other auxiliary agent 6.6~45 parts, the rest is water;The modified crosslinking agent is prepared by trifunctional aziridine, trishydroxymethyl aminomethyl methane, ethylene glycol di (3-mercaptopropionate), methyl methacrylate trifluoroethyl ester and 3-(2,3-epoxypropoxy) propyl methyl diethoxysilane, N,N-dimethylformamide and p-benzenesulfonic acid.The present application introduces modified crosslinking agent in water-based polyurethane system, so that the adhesion of coating and waterproofing membrane is firm and the peel strength is significantly improved, and the durability of the waterproof effect of coating and roll composite layer is improved.

Examples present disclosure relate to a separator for a rechargeable lithium battery, and a rechargeable lithium battery including the separator, and include a separator for a rechargeable lithium battery including a porous substrate, and a coating layer located on at least one surface of the porous substrate. The coating layer includes a cross-linked product of a binder, a cross-linking agent, and carboxyalkyl cellulose or a salt thereof, and a filler. The binder includes a (meth)acryl-based binder including a structural unit derived from (meth)acrylate or (meth)acrylic acid, a cyano group-containing structural unit, and a sulfonate group-containing structural unit. The cross-linking agent includes one or more of an aziridine-based cross-linking agent and a carbodiimide-based cross-linking agent.

The invention relates to a preparation method of chiral beta-substituted phenylethylamine and a derivative thereof, which comprises the following step: by taking aziridine as a raw material, nickel salt as a catalyst and a chiral ligand as a ligand and a metal reducing agent, carrying out asymmetric cross electrophilic coupling reaction to prepare the chiral beta-substituted phenylethylamine. The chiral beta-substituted phenylethylamine and the derivative thereof are obtained in one step by adopting a nickel-catalyzed asymmetric electrophilic cross-coupling method, and the method has the advantages of high step economy, high reaction efficiency, less pollutant emission and the like.

The invention discloses aza-2-ketone derivatives, a synthesis method thereof and application of the aza-2-ketone derivatives in preparation of drugs. According to the invention, an alpha-carbonyl acyl silane compound is taken as a raw material, and under illumination, the alpha-carbonyl acyl silane compound and a vinyl aziridine compound are subjected to [5 + 2] cycloaddition reaction, so that a series of aza-2-ketone derivatives with different structures are simply and efficiently synthesized. The aza-2-ketone derivative disclosed by the invention can be further converted into medicine molecules such as kappa-opioid receptor selective agonist molecules and the like. The method has the advantages of easily available raw materials, simple operation, mild reaction conditions, and diversity of functional groups.

The present disclosure relates to a separator for a rechargeable battery and a rechargeable battery including the separator. The separator includes a porous substrate and a coating layer located on at least one surface of the porous substrate. The coating layer includes a crosslinked product of a binder and a crosslinking agent, and a filler. The binder includes a (meth)acrylic binder including a first structural unit derived from (meth)acrylic acid, (meth)acrylate, or a salt thereof, a second structural unit derived from hydroxyalkyl (meth)acrylate, and a third structural unit derived from (meth)acrylamido sulfonic acid or a salt thereof. The crosslinking agent includes an aziridine-based crosslinking agent. The filler includes a mixture of a first filler and a second filler, wherein the first filler is an inorganic filler and the second filler is a metal-organic framework structure.

This invention relates to the field of coating technology, specifically to a printing coating for colored paper and its preparation method. In the preparation process, this invention incorporates dithiol dihydroxyacetic acid to increase the crosslinking points of the system, and trimethylolpropane tris(2-methyl-1-azacyclopropane propionate) containing an unstable aziridine three-membered ring to improve the degree of crosslinking. It also introduces isoborneol methacrylate to reduce internal stress, effectively balancing the crosslinking density and volume shrinkage of the system, resulting in a coating with excellent adhesion. Furthermore, this invention adds the bifunctional monomer 1,6-hexanediol diacrylate to make the network structure more uniform and provide anti-photooxidation properties, making the system less prone to oxidative discoloration. The addition of tripropylene glycol diacrylate reduces the risk of yellowing caused by small molecule migration. Therefore, the coating obtained in this way has significant anti-yellowing effects, preventing color distortion of colored paper and maintaining the appearance stability of the colored paper.

The invention discloses a preparation method of a solid propellant containing alkali metal. The preparation method comprises the following steps: step 1, mixing and stirring an adhesive, metal aluminum powder, ammonium perchlorate, alkali metal salt powder, tris (2-methyl-1-aziridine) phosphine oxide and a polymerizing agent to obtain slurry; step 2, carrying out negative pressure pouring on the explosive slurry to obtain an explosive column; and 3, the grain is dried, cured and demolded, and the solid propellant containing the alkali metal is obtained. According to the preparation method, the solid propellant which is relatively rapid in response to microwave energy and relatively efficient is prepared at relatively low cost.

The present invention features compounds containing an aziridine moiety and methods for synthesizing the same. The compounds can be linked to a monovalent organic moiety and can be used to bind to a target (e.g., a target protein), e.g., by crosslinking to the target. In some embodiments, the monovalent organic moiety is capable of binding to a presenter protein. Also disclosed are complexes containing the compounds (e.g., presenter protein / compound complexes, compound / target protein complexes, or ternary complexes). Also disclosed are methods of forming the complexes and methods of modulating biological processes using the compounds and complexes.

The present application relates to the field of leather, and more particularly to a temperature-controlled color-changing leather and a preparation method thereof, comprising a leather layer and a buffer layer, a color-changing layer and a protective layer arranged in sequence on the leather layer; the color-changing layer comprises the following raw materials in parts by weight: modified polyurethane resin 100-120 parts, water-based polycarbonate 15-25 parts, color-changing microcapsules 15-30 parts, heat-conducting filler 2-5 parts, aziridine 1-2 parts, silicone oil 2-3 parts, antioxidant 0.3-0.8 parts, leveling agent 0.2-0.5 parts, thickening agent 0.5-1.5 parts, phase solvent 3-5 parts and dispersant 0.5-1 part. The gradient design of each layer structure, the toughening modification of the material and the strengthening of the microcapsule shell layer solve the core technical problems of poor bending resistance, easy breakage of microcapsules and low production efficiency of the existing temperature-controlled color-changing leather.

The present disclosure relates to a separator for a rechargeable battery, and a rechargeable battery including the separator. The separator includes a porous substrate and a coating layer located on at least one surface of the porous substrate. The coating layer includes a crosslinked product of a binder and a crosslinking agent, and a filler. The binder includes a (meth)acrylic binder including a first structural unit derived from (meth)acrylic acid, (meth)acrylate, or a salt thereof, a second structural unit derived from hydroxyalkyl (meth)acrylate, and a third structural unit derived from (meth)acrylamidosulfonic acid or a salt thereof. The crosslinking agent includes an aziridine-based crosslinking agent. The filler includes a mixture of a first filler and a second filler, the first filler is an inorganic filler, and the second filler is a fibrous filler.

This invention discloses a method using arylmethyl ketones and 2-aryl- N This invention relates to a method for synthesizing dihydropyrrole derivatives using toluenesulfonylaziridine as a starting material, belonging to the field of organic synthetic chemistry. The method uses tris(dibenzylacetone)dipalladium (Pd2(dba)3) as a catalyst, and 2-iodobenzoic acid (IBX) and potassium persulfate (K2S2O8) as co-oxidants. N,N Using dimethylformamide (DMF) as both solvent and carbon source, the reaction is carried out in an oil bath at 100℃–120℃ for 15–24 h, followed by post-treatment to obtain dihydropyrrole derivatives. This invention utilizes readily available raw materials, is simple to operate, employs mild reaction conditions, exhibits broad functional group compatibility, provides high product selectivity, and is environmentally friendly. Yields can reach 51%–90%, making it suitable for large-scale preparation of structurally diverse dihydropyrrole derivatives. It has significant application value in drug development, natural product synthesis, and materials chemistry.

The present invention relates to a separator for a lithium secondary battery and a lithium secondary battery comprising same, the separator for a lithium secondary battery comprising: a porous substrate; and a coating layer positioned on at least one surface of the porous substrate. The coating layer comprises: a crosslinked product of a binder, a crosslinking agent, and carboxyalkyl cellulose or a salt thereof; and a filler, wherein the binder includes a (meth)acrylic binder comprising a structural unit derived from (meth)acrylate or (meth)acrylic acid, a structural unit containing a cyano group, and a structural unit containing a sulfonate group, the crosslinking agent includes an aziridine-based crosslinking agent, and the filler is surface-modified and has a particle diameter D100 of 1.0 μm or smaller.

The invention discloses a method for preventing color migration of pigment-dyed superfine fiber synthetic leather, which specifically comprises the following steps of: blade-coating a treating agent prepared from chemically modified cellulose, polyethylene glycol 200 and an aziridine cross-linking agent according to a certain concentration on the surface of pigment-dyed superfine fiber leather; the blade coating process comprises the steps of treating agent preparation, treating agent blade coating (the liquid carrying rate is 30%-60%), drying (the temperature is 80-100 DEG C, and the time is 1-5 min) and finished product obtaining. The treating agent disclosed by the invention consists of chemically modified cellulose, polyethylene glycol 200 and an aziridine cross-linking agent. The chemically modified cellulose has relatively strong hydrophilicity, and is matched with polyethylene glycol 200 with relatively high hydrophilicity, an isolating membrane formed under the action of an aziridine cross-linking agent is relatively high in polarity, compact in structure and stable in property, and pigments are encapsulated in the microfiber leather, so that migration of pigment molecules to the outside is effectively prevented; the purpose of preventing color migration of the pigment dyed superfine fiber synthetic leather is achieved.

The invention discloses a method for enantioselective synthesis of NH-aziridine, which comprises the following steps: in the presence of a chiral phosphoric acid catalyst, reacting alpha-cyano heterocyclic conjugated olefin as shown in a formula (I) with N-acyloxyhydroxylamine in an organic solvent to obtain NH-aziridine as shown in a formula (II), according to the present invention, the method can be smoothly performed in the inert organic solvent at the temperature of-40-25 DEG C, the substrate can suitably cover pyridine, quinoline, benzimidazole, benzothiazole, benzoxazole and other N-heteroaromatic rings, the product yield is high, and the enantiomeric excess (ee) can be up to 99%. Inorganic additives (such as magnesium oxide) may be optionally added during the reaction to increase yield on individual substrates without affecting enantioselectivity. The method avoids the traditional multi-step sequence of nitrogen protection first and then deprotection, and has the advantages of economical steps, mild conditions, feasible amplification and the like.

The use of AKR1C3 enzyme-activated DNA alkylating agent prodrug compounds containing aziridine structures, as well as their salts, esters, solvates, and isotopic isomers, in combination with anti-allergy drugs / nonsteroidal analgesics for the treatment of cancer and tumor patients; and the use of AKR1C3 enzyme-activated DNA alkylating agent prodrug compounds containing aziridine structures, as well as their salts, esters, solvates, and isotopic isomers, in combination with anti-allergy drugs / nonsteroidal analgesics in the preparation of drugs for the treatment of cancer and tumors.

The application belongs to the technical field of polyurethane films, and particularly relates to a waterproof and breathable polyurethane film and a preparation method thereof. The polyurethane film comprises the following components in parts by weight: 40-50 parts of polyurethane resin, 3-4 parts of functional chitosan oligosaccharide, 6-8 parts of polystyrene, 1-2 parts of mesoporous silica nanoparticles, 0.5-0.8 parts of a crosslinking agent, and 40-50 parts of an organic solvent. The polyurethane film is prepared by using polyurethane resin as a main component, adding hydrophobic polystyrene, porous mesoporous silica nanoparticles and functional chitosan oligosaccharide, and crosslinking the components by means of aziridine crosslinking agent to form a polyurethane film with a compact structure. The polyurethane film not only improves the mechanical properties, waterproof and breathable properties, but also greatly enhances the antibacterial properties and flame-retardant properties of the polyurethane film.

The invention discloses a high-adhesion anti-fingerprint UV film and a preparation method thereof. The UV film comprises a base layer, a bonding layer, a functional layer and an anti-fingerprint layer which are sequentially stacked. The silane coupling agent KH-560 added in the bonding layer can chemically react with active groups on the surfaces of the base layer and the protected base material to form chemical bond connection, and meanwhile, a polymer network structure formed by urethane acrylate and 2-ethylhexyl acrylate further enhances the bonding force with the base material. Fluorosilicone resin in the anti-fingerprint layer has the characteristic of low surface energy, so that the adhesive force between fingerprint stains and the surface of the film can be effectively reduced, and fingerprints are easy to wipe and remove; due to the addition of the aziridine cross-linking agent, the anti-fingerprint layer forms a compact cross-linked network structure, and the wear resistance and durability of the anti-fingerprint layer are improved. The nano silicon dioxide in the functional layer not only improves the hardness and the wear resistance of the UV film, but also can improve the optical performance of the film.

This separator for a battery comprises a porous substrate and a coating layer placed on at least one surface of the porous substrate, wherein the coating layer includes: a binder; a cross-linking agent; a cross-linked product of a carboxyalkyl cellulose or a salt thereof; a filler; and an adhesive binder, the binder including a (meth)acrylic binder that comprises a first structural unit derived from (meth)acrylamide and a second structural unit derived from (meth)acrylamidosulfonic acid or a salt thereof, the cross-linking agent including an aziridine-based cross-linking agent, the carboxyalkyl cellulose or a salt thereof being included in an amount of 20-50 wt% on the basis of the total amount of the (meth)acrylic binder, the cross-linking agent and the carboxyalkyl cellulose or a salt thereof, and the adhesive binder including a swellable adhesive binder, wherein the swellable adhesive binder comprises a first structural unit derived from a vinyl aromatic monomer, a second structural unit derived from an alkyl (meth)acrylate and a third structural unit derived from a phosphonate-based monomer.

The invention belongs to the technical field of concrete additives, and particularly relates to a glue reducing agent for compounding a water reducing agent as well as a preparation method and application of the glue reducing agent. The glue reducing agent disclosed by the invention is prepared by compounding an active excitation dispersant and triethanolamine, the active excitation dispersant is prepared by preparing an intermediate from aziridine and diethylene glycol monovinyl ether, and then preparing a medium-low molecular weight polymer from the intermediate and an amine small monomer. According to the active excitation dispersing agent, multi-polar groups are concentrated in the same molecule, the active excitation dispersing agent can effectively act on gaps where water reducing agent molecules cannot act, the dispersity of cement particles is higher when the active excitation dispersing agent is mixed with a water reducing agent for use, meanwhile, the cement reducing agent can participate in hydration reaction, the hydration rate is adjusted, and the pore structure is optimized; and the working performance and the strength of the concrete are improved.