718 results about "Triisopropanolamine" patented technology

The invention discloses a concrete early-strength agent, which is characterized in comprising the following components according to weight percentage: inorganic salt early-strength component 35-55 percent, organic early-strength component 5-10 percent, water reducing component 15-25 percent, wherein the inorganic salt early-strength component is prepared by at least two among sulfate, carbonate, nitrate, and nitrite; the organic early-strength component selects any one among calcium formate, sodium acetate, calcium oxalate, triethanolamine, tri-iso-propanolamine and carbamide; the water reducing component selects one among naphthalenesulfuric acid type, melamine type and polycarboxylate type. The invention makes the concrete be coagulated and hardened rapidly under the condition of low temperature, so that the early strength of the concrete is greatly improved as well as later strength is ensured.

The invention relates to a low-temperature concrete early strength agent, which belongs to cement additives. The early strength agent consists of sodium metaaluminate, sodium silicate, sodium sulfate, sodium carbonate, lithium carbonate, lithium bromide, alkali metal chlorides, alkali metal hydroxides, zinc fluosilicate, magnesium fluosilicate, sodium fluosilicate, calcium fluoride, triisopropanolamine, a filtrate reducer, beta-naphthalene formaldehyde sulfonate polycondensate, ultrafine powder SiO2, ultrafine powder Al2O3, ultrafine powder Fe2O3, ultrafine powder CaO and ultrafine powder MgO. The early strength agent is mainly applied to winter concrete construction or low-temperature environmental emergency projects; when the early strength agent is used, the composition mixture is added into concrete according to 2 to 5 percent of the total weight of cement, water is added and then stirring is performed; and a cement block with the strength of 13.5MPa can be formed in a low-temperature environment at the ambient temperature of approximately 4 DEG C within 12 hours, a cement block with the strength of 18.5MPa can be formed within 24 hours and a cement block with the high strength of 30MPa can be formed within three days.

The invention discloses a silicate cement grinding aid and a preparation method thereof. The silicate cement grinding aid is prepared from the following main raw materials by weight: 3-6 parts of sodium hexametaphosphate, 2-5 parts of aluminum sulfate, 5-8 parts of tetra sodium salt of amino trimethylene phosphonic acid (ATMP.Na4), 4-6 parts of ethylene diamine tetra (methylene phosphonic acid) sodium, 38-45 parts of polymeric alkylol amine, 34-42 parts of triisopropanolamine, 8-12 parts of waste engine oil, 2-5 parts of sodium alpha-olefin sulfonate, 10-16 parts of sorbitol, 15-20 parts of diethylene glycol, 8-13 parts of polypropylene wax, 6-10 parts of oxidized polyethlene wax, 4-8 parts of lignite wax, 20-30 parts of odium thiosulfate, 12-18 parts of sodium thiosulfate and 15-20 parts of quicklime powder. The prepared silicate cement grinding aid has the advantages that the quality is stable, the effect is remarkable, the adding amount is small, the use is simple, and the adding is more convenient and reliable to control.

The invention relates to a cement grinding aid, in particular to a cement grinding aid and a preparation method thereof. The cement grinding aid is prepared from, by weight, 13-18 parts of polymeric polylol, 8-12 parts of tri-isopropanolamine, 12-15 parts of polyol ether, 15-20 parts of ethanediol, 25-30 parts of triethanolamine, 15-18 parts of molasses, 13-15 parts of lignin, 0.03-0.06 part of sodium chloride, 0.5-1 part of silane coupling agents and 40-45 parts of water. By means of the obtained cement grinding aid, in the cement production process, the phenomena of clinker fine particle aggregation and ball pasting can be effectively improved, mobility of clinker particles is enhanced, thereby the pulverization effect of grinding media in a grinding machine for materials is enhanced, grinding efficiency can be improved by 15-20%, the cement machine-hour yield is increased, electricity consumption is greatly lowered, production cost is lowered, in addition, strength of cement at different ages can be remarkably improved, and flowability of the cement is improved.

The invention discloses a cement grinding aid and a preparation method thereof. Raw materials of the cement grinding aid consists of 10-30 percent of triethanolamine, 12-30 percent of tirisopropanolamine, 5-20 percent of ethylene glycol, 3-10 percent of propanediol, 15-40 percent of water, 1-5 percent of sodium dodecyl benzene sulfonate, 3-10 percent of lignin and 2-5 percent of anhydrous sodium sulfate; water is poured into a reactor and heated to 40-50 DEG C to be reserved; the sodium dodecyl benzene sulfonate is added to be stirred for 15min; the anhydrous sodium sulfate is added and stirred for 10min, then the lignin is added and stirred for 30min; materials in the reactor are filtered by a 150 mesh screen; the ethylene glycol and the propanediol are added and stirred for 20min; the triethanolamine and the tirisopropanolamine are added and stirred for 30min and the grinding aid products are obtained. The cement grinding aid can improve grinding efficiency and early and later strength of cement and reduce cement cost.

The present invention discloses a fiber reinforcement fire-proof thermal insulation plate, which is prepared by raw materials having the following weight portions: 80-100 portions of fly ash, 30-50 portions of expanded perlite, 10-20 portions of haydite, 10-20 portions of vegetable fiber, 5-10 portions of winnowing beads, 5-8 portions of sepiolite, 3-5 portions of sodium fluorosilicate, 3-5 portions of calcium formate, 3-5 portions of flame-retardant, 0.1-0.5 portion of triisopropanolamine loeate and 0.1-0.3 portion of dimethoxy-ethane. According to the present invention, industrial production wastes are adopted as main raw materials, so that the production cost is reduced; and defects in the existing building thermal insulation plates can be effectively overcome through the cooperation effect produced by organic combination of the fly ash, light aggregates and additives.

The invention belongs to the technical field of cement technology admixtures, and relates to a composite high-efficient liquid cement grinding aid which contains water solution with the following materials by weight percent: 10 to 20 percent of triethanolamine, 5 to 10 percent of glycol, 5 to 10 percent of tri-isopropanolamine, 5 to 10 percent of calcium lignosulphonate, 5 to 10 percent of molasses, and 5 to 10 percent of sodium silicate; and the water solution is subjected to magnetization treatment. The composite high-efficient liquid cement grinding aid has the following advantages: by the magnetization treatment, solid / liquid stable suspension durability is good, no separation or sediment phenomenon occurs after long-term storage, dosing amount is low, application range is wide, hourly output of a cement grinding mill can be improved by 15 to 20 percent, cement strength can be improved by 1 to 2MPa, 5 to 8 percent of clinker can be saved, and 5 to 8 percent of industrial residue can be additionally dosed.

The invention relates to an enhanced liquid cement grinding aid capable of improving the grinding efficiency of a cement grinding mill and enhancing the strength of cement. The liquid cement grinding aid comprises the components with the weight percentages as follows: 10 to 20 percent of triethanolmine, 5 to 10 percent of triisopropanolamine, 3 to 5 percent of diethylene glycol, 2 to 5 percent of sodium formate, 2 to 5 percent of sodium acetate, 1 to 3 percent of sodium lignosulfonate, 10 to 20 percent of desugarized molasses, 5 to 10 percent of glycerin, and water.

The invention discloses sodium silicate sand with high wet-compressive strength and a preparation method thereof. The sodium silicate sand with high wet-compressive is prepared from the following raw materials in parts by weight: 55-75 parts of silica sand, 30-40 parts of carborundum, 10-15 parts of limestone, 5-8 parts of bentonite, 3-6 parts of bauxite, 4-7 parts of modified sodium silicate, 2-3 parts of Arabic gum powder, 1-2 parts of dioctyl phthalate, 3-4 parts of lithium slag powder, 2-3 parts of talcum powder, 1.5-2.5 parts of gypsum, 1-2 parts of triisopropanolamine, 0.5-1 part of stearic acid and 3-5 parts of water. The sodium silicate sand disclosed by the invention is high in wet-compressive strength, easy to draw and repair, so that process requirements of drawing and then curing are completely satisfied. Moreover, the sodium silicate sand has good mobility, low gas evolution rate, good gas permeability and good collapsibility, can be used for remarkably improving the quality of a casting piece and lowering the rejection rate of the casting piece.

The invention discloses a concrete nano water-reducing super high-early-strength agent which is capable of remarkably increasing early and late strength of concrete and shortening construction period and simultaneously has good water-reducing performance, plastic retaining performance, corrosion inhibiting performance and stability. The agent comprises the following ingredients: 46-52 wt% of early strength components, 26-32 wt% of water reducing components, 6-15 wt% of corrosion inhibiting components, 4-5 wt% of retarding components, and 6-8 wt% of adjustment components, wherein the early strength components comprise three or four selected from magnesium sulfate, sodium sulfate, sodium nitrite, triethanolamine, sodium thiosulfate, triisopropanolamine, and calcium formate, the water reducing components comprise one selected from naphthalene sulfonic acid high-efficiency water reducer and carboxylic acid water reducer, the corrosion inhibiting components comprise one selected from calcium nitrite, calcium nitrate, potassium chromate, and stannous chloride, the retarding components comprise one selected from sodium gluconate and citric acid, and the adjustment components comprise nano ground calcium carbonate.

The invention provides an early-strength water reducer for recycled aggregate concrete, which is suitable for the field of building materials. The the early-strength water reducer comprises the following raw materials by weight percent: 20-25% of a polycarboxylic acid water reducer, 1-6% of tri-isopropanolamine, 0.5-2% of triethanolamine, 5-15% of sodium sulfocyanate, 3-10% of calcium formate, and 42-70.5% of water. The early-strength water reducer provided by the invention is low in dosage, good in early-strength effect, free from chloride ions, resistant to the corrosion of steel bars, suitable for recycled concrete, and capable of enhancing the early strength of a recycled concrete product and improving the peaceability of a recycled concrete mixture.

The invention provides a liquid cement grinding additive, which comprises the following components in percentage by weight: 10 to 20 percent of tetrahydroxyethyl-ethylenediamine, 10 to 20 percent of ethoxyl-diethylenetriamine, 10 to 15 percent of diethylene glycol, 5 to 10 percent of polyethylene glycol, 2 to 5 percent of sodium tripolyphosphate, 3 to 5 percent of calcium lignosulphonate, 0 to 10 percent of tri-isopropanolamine, 0 to 8 percent of sodium gluconate, and the balance of water, wherein the molecular weight of the polyethylene glycol is between 200 and 400. As a preferred scheme of the invention, the content of the tri-isopropanolamine is between 5 and 10 percent, and the content of the sodium gluconate is between 5 and 8 percent. A cement and concrete admixture using the liquid cement grinding additive has good adaptability, can significantly improve the grinding efficiency of a grinding machine and improve the strengths of the cement in an early period and a later period by 2 to 4 MPa, or can reduce the clinker dosage by 4 to 8 percent and increase the adding volume of a mixed material by 4 to 8 percent in the cement under a condition of keeping the same cement strength grade.

The invention provides a super slump type polycarboxylate water reducing agent for bored pile concrete. The water reducing agent is in a liquid state and comprises the following ingredients: sodium oleate, water reducing type polycarboxylate plasticizer, slump type polycarboxylate plasticizer, hydroxyethylidene diphosphonic acid, 2-acrylamide-2-methylpropanesulfonic acid / itaconic acid / acrylic acid terpolymer, hydroxypropyl methyl cellulose or hydroxyethyl methyl cellulose, air entraining agent and triisopropanolamine. The super slump type polycarboxylate water reducing agent for bored pile concrete provided by the invention has the following beneficial effects that by using the super slump type polycarboxylate water reducing agent, the bored pile concrete is good in homogeneity, the static bleeding rate of the bored pile concrete can be generally less than 1%, stable working performance can be maintained within a long time span, meeting the working property of concrete after 0.5-5.0h can be met by adjusting the formulation and dosage and improving the compressive strength ratio of the concrete, and the 28 d strength can be more than 130% of that of benchmark concrete. The invention further provides a preparation method of the super slump type polycarboxylate water reducing agent for bored pile concrete.

The invention patent relates to an enhanced cement composite grinding aid, pertaining to a cement additive. The enhanced cement composite grinding aid has the following main ingredients in percentagesby weight: 45 percent to 90 percent of diethanol isopropanolamine, 10 percent to 30 percent of molasses, 5 percent to 20 percent of lignosulphonate, 0 percent to 15 percent of inorganic dispersant and 0 percent to 30 percent of water. The main ingredient of the grinding aid, diethanol isopropanolamine, is a substitute for trolamine and triisopropanolamine in respect of property and the property thereof is superior to single trolamine or triisopropanolamine grinding aid. The application of the enhanced cement composite grinding aid to cement production can effectively increase output per machine hour of a grinder, improve cement strength in early period and later period, and reduce cement production cost.

The invention relates to a deepwater cementing low-temperature early strength agent. The low-temperature early strength agent comprises the following components in percentage by weight: 33 to 66 percent of alkali metal bromides, 6 to 16 percent of sodium metaaluminate, 15 to 35 percent of alkali metal hydroxides, 8 to 15 percent of silicon dioxide and 0.8 to 1.5 percent of alcamines organics, wherein the alkali metal bromides are a mixture of one, two or more of NaBr, KBr and LiBr; the alkali metal hydroxides are NaOH, KOH or a mixture of the NaOH and KOH; and the alcamines organics are triethanolamine, triisopropanolamine or a mixture of the triethanolamine and triisopropanolamine. The deepwater cementing low-temperature early strength agent has small influence on rheological behaviour of cement paste at low temperature, can prompt the cement paste to be solidified rapidly at low temperature and reach higher early strength, shortens the thickening time of the cement paste at lower temperature and can well meet the requirements of the cementing construction of a surface casing under the conditions of low temperature, shallow gas and the like.

The invention discloses a cement grinding aid. The cement grinding aid comprises the following components in percentage by weight: 8 to 20 percent of triethanolamine, 0 to 10 percent of triisopropanolamine, 8 to 20 percent of diol byproduct, 0 to 10 percent of synthetic glycerine, 0 to 25 percent of molasses, 0 to 5 percent of calcium lignosulfonate, 0 to 15 percent of polyurethane, 0 to 10 percent of cystine, 3 to 5 percent of sorbitol, 5 to 10 percent of sodium carboxymethylcellulose, 0 to 5 percent of citric acid, 0 to 5 percent of silica powder, 0 to 5 percent of fly ash and the balance of water. The invention also discloses a preparation method of the cement grinding aid. The grinding aid can effectively improve the equipment-hour yield of a cement grinding mill, reduce energy consumption and remarkably improve cement performance, does not have adverse side effects on cement, reduces the using amount of cement clinkers by 4 to 10 percent, improves the equipment-hour yield of cement production by 6 to 10 percent, and has a good effect. The method has a unique process, a part of raw materials are treated by ultrasound, and the prepared grinding aid has high performance.

The invention brings forward a liquid alkali-free accelerator and preparation and application thereof. The liquid alkali-free accelerator comprises the following ingredients (by weight): 20-45% of aluminum sulfate, 15-25% of aluminium hydroxide, 10-35% of hydrofluoric acid, 0.5-2% of triisopropanolamine, 0.5-5% of water glass, 0-1% of a stabilizing agent, 1-5% of a reinforcing agent, 5-8% of a pHregulator, 0.2-0.5% of a cosolvent, and the balance water. The liquid alkali-free accelerator has the following advantages: the production process is simple, heating is not required, and ''three wastes (waste gas, waste water and industrial residue)'' are not generated; alkali etch of concrete structures is reduced, strength is enhanced, and durability of sprayed concrete is increased. With low dosage, Portland cement grout can be initially coagulated within 2 min and finally coagulated within 4 min; 1d strength of cement mortar can reach 15 MPa and above, and ratio of 28d compressive strengthis greater than 100%; and the liquid alkali-free accelerator has good adaptation to different kinds of cement.

The invention relates to an aid suitable for multiple glyphosate salt water agents. The aid has a wide application range, and can be used as a synergist for multiple glyphosate salt water agents including ammonium glyphosate, glyphosate isopropylamine, glyphosate dimethylamine, glyphosate ethanol amine, glyphosate triisopropanolamine, glyphosate triethylamine, glyphosphate-trimesium, and glyphosate potassium. The aid is composed of cocamidopropyl betaine, sodium cocoyl sarcosinate, iso-tridecanol polyoxyethylene ether, alkyl glucoside, ammonium sulfate, and water agent. When the weight of the aid accounts for 5 to 20% of various glyphosate water agents, the aid can guarantee the storage stability of water agents and has an excellent synergetic effect on glyphosate.

The invention provides a method for realizing simple and direct preparing of high-efficiency cement rubber additive. The method, which has lower cost and takes ammonia, propylene oxide (PO) and ethylene oxide (EO) as raw materials, comprises the following steps that: superfluous ammonia stream and PO stream are fed into a continuous reactor so as to continuously form a mixture containing isopropanolamine, diisopropanolamine and triisopropanolamine; liquid level inside the continuous reactor is maintained to ensure that the stream in the reactor undergoes outer circulation spraying through a circulating pump from the bottom to the top of the continuous reactor, and part of the stream is continuously fed into a flash tower so as to remove unreacted ammonia; then, the stream with ammonia removed is reacted with EO stream so as to continuously generate products. The method ensures that products do not need rectification separation and greatly reduce production energy consumption, thereby reducing the production cost of products.

The invention relates to a preparation method of a triisopropanolamine modified early strength polycarboxylate superplasticizer. The preparation method comprises the following steps of (1) selecting raw materials; (2) dissolving polyester macromonomer, acrylic acid and maleic acid triisopropanolamine ester while stirring to obtain a uniform solution, then, adding an oxidizing agent, and stirring to obtain a uniform solution; (3) adding a reducing agent and chain transfer agent mixture into the uniform solution obtained in the step (2) at one step, continuing to stir, and adding a proper amount of deionized water to obtain the early strength polycarboxylate superplasticizer. The preparation method has the following main advantages that 1, the water reducing ratio is high, cement particles can be effectively dispersed, and the early stage hydration is promoted; 2, triisopropanolamine can be slowly released in an alkaline environment for cement hydration, so that the hydration is further promoted, the early strength is improved, but the initial flowability of slurry is not affected; 3, a one-step method and a one-step feeding way are adopted in the preparation method, and the preparation method is simple in process and short in reaction period.

The invention discloses a fiber-reinforced fireproof insulation board. The fiber-reinforced fireproof insulation board is prepared from the raw materials in parts by weight: 80-100 parts of fly ash, 30-50 parts of expanded perlite, 10-20 parts of ceramsite, 10-20 parts of plant fiber, 5-10 parts of floating bead, 5-8 parts of meerschaum, 3-5 parts of sodium fluosilicate, 3-5 parts of calcium formate, 3-5 parts of flame retardant, 0.1-0.5 part of oleic triisopropanolamine and 0.1-0.3 part of glycol dimethyl ether. According to the fiber-reinforced fireproof insulation board, industrial production wastes are adopted as main raw materials, so that the production cost is reduced; through the organic combination and generated synergism of the fly ash, lightweight aggregate and additives, the defects in the existing building insulation boards can be effectively overcome.

The invention relates to an alkali-free liquid concrete setting accelerator and a preparation method thereof. The alkali-free liquid concrete setting accelerator is prepared from the following components in parts by mass: 30 to 60 parts of polyaluminium sulfate, 5 to 20 parts of magnesium sulfate, 5 to 10 parts of calcium formate, 1.0 to 3.5 parts of methylcellulose, 0.8 to 1.5 parts of polyacrylamide, 0.2 to 1.0 part of organic acid, 1 to 3 parts of triisopropanolamine, 0.15-1.08 parts of defoaming agent, 0.5-2.5 parts of hydrofluoric acid, 2 to 6 parts of aluminum hydroxide, 0.5-1.5 parts of 85%-concentration phosphoric acid and 30 to 50 parts of water. The alkali-free liquid concrete setting accelerator has the beneficial effects that the alkali-free liquid concrete setting accelerator provided by the invention does not contain alkali metal ions, and is free of corrosion and pungent smell, stable in quality, good in adaptability, low in mixing amount, high in condensation speed and high in strength.

The invention discloses an alkali-free setting accelerator containing a coagulation and early-strength accelerator and an organic amine substance and a preparation method thereof. The alkali-free setting accelerator is characterized by comprising the following raw materials in percentages by mass: 35% to 50% of aluminum sulfate, 3% to 15% of magnesium sulfate, 0 to 15% of sodium fluoride, 0.125% to 0.5% of the organic amine substance, 1% to 5% of a thickening agent and 1% to 5% of a stabilizing agent, with the balance being water, wherein the mass percents of the components sum to 100%; and the organic amine substance is any one selected from the group consisting of triisopropanolamine, diethanolisopropanolamine and tetrahydroxyethyladipicdiamide. The preparation method comprises steps ofbatching, raw material mixing under stirring, and formation of a uniform and stable system. The alkali-free setting accelerator provided by the invention is alkali-free, has good cohesiveness, low resilience value, high later strength retention rate and moderate cost, can be extensively applied to construction of tunnels, culverts, sinking and driving engineering, etc., can realize large-scale industrial production, and has strong strong practicability.

The invention belongs to the technical field of cement technology admixtures, and particularly relates to a composite high-efficient environment-friendly powdery cement grinding aid which is made by materials with the following weight ratio: 40 to 50 percent of treated citric acid slag, 10 to 20 percent of flyash, 5 to 10 percent of molasses, 5 to 10 percent of anhydrous sodium sulfate, 5 to 10 percent of sodium silicate, 1 to 3 percent of triethanolamine, 1 to 3 percent of tri-isopropanolamine, 5 to 10 percent of slaked lime, and 10 to 20 percent of calcium lignosulphonate. The treated citric acid slag is obtained by ultrasonication. The composite high-efficient environment-friendly powdery cement grinding aid has the beneficial effects of: wide applicability, low dosing amount, improved grinding aiding effect, improved early-stage strength and later-stage strength of cement, saved cement clinker, adoption of industrial residue as the main body, and being green and environment-friendly.

The invention relates to an environment-friendly, high-efficient and composite liquid cement grinding aid and a preparation method thereof. The grinding aid is prepared from following materials: 1-20 parts of triethanolamine, 1-20 parts of triisopropanolamine, 10-20 parts of glycerol, 10-20 parts of molasses, 2-8 parts of propylene glycol, 3-6 parts of sodium tripolyphosphate, 3-8 parts of sodiumhexametaphosphate and 30-50 parts of water. The grinding aid of the invention has low toxicity, does not volatilize and has stable source, sufficient supply, simple processing and preparation and lowcost; the indexes meet standard requirement of JC / T667-2004 Cement Grinding Aid; after the cement is doped, the distribution and shape of the separated particles can be improved and no bad influence for cement quality exists; the yield and quality of the cement are good. The performance is stable, the price is low and the performance cost ratio is high. The adaptability is wide, the doping quantity is low, the grinding effect is improved, the free calcium oxide in the cement is reduced, and the early strength and long-term strength of the cement are improved.

The present invention discloses a fiber reinforcement aerated thermal insulation plate, which is prepared by raw materials having the following weight portions: 80-100 portions of fly ash, 30-50 portions of expanded perlite, 10-20 portions of haydite, 10-20 portions of vegetable fiber, 5-10 portions of winnowing beads, 5-8 portions of sepiolite, 3-5 portions of sodium fluorosilicate, 3-5 portions of calcium formate, 2-4 portions of foaming agent, 0.1-0.5 portion of triisopropanolamine loeate and 0.1-0.3 portion of dimethoxy-ethane. According to the present invention, industrial production wastes are adopted as main raw materials, so that the production cost is reduced; and defects in the existing building thermal insulation plates can be effectively overcome through the cooperation effect produced by organic combination of the fly ash, light aggregates and additives.

The invention relates to a novel liquid cement grinding aid and a preparation method thereof. The novel liquid cement grinding aid is prepared from the following raw materials by weight ratio: 10-25 parts of triisopropanolamine, 10-20 parts of glycerol, 10-20 parts of molasses, 2-8 parts of propylene glycol, 3-6 parts of diglycol, 3-10 parts of ethylene glycol and 30-45 parts of water. The novel liquid cement grinding aid has low toxicity, stable and sufficient source of raw materials and low cost, is non-volatile and is easy to process and prepare. All the indexes of the novel liquid cement grinding aid meet the standard requirements of the cement grinding aid JC / T667-2004. Mixed with the cement, the novel liquid cement grinding aid can reduce the free energy on the surface of the powder and change the distribution and the morphology of the particles of the powder, can not cause bad influence on the quality of the cement and can be generally used. Due to the adoption of the novel liquid cement grinding aid, the efficiency of grinding the cement into powder by using a grinding machine can be significantly improved, the early and later-stage strength of the cement can be increased by 2-5MPa, the cement clinker can be saved, and the mixing amount of the cement admixture can be increased by 5%.

The invention relates to concrete synergist. Components of the concrete synergist, mixed by weight, include 8%-12% of triisopropanolamine, 25%-35% of polymeric alkylol amine, 5%-15% of modified polycarboxylic acid water reducer, 25%-35% of black liquor extractive and water. The concrete synergist, which is prepared by means of scientific proportioning and mixing of all components, is non-poisonous, free of abnormal odor, green and healthy. When concrete added with the concrete synergist is compared with traditional concrete, a concrete grade is increased on the premise of the same consumption, and 10%-15% of cement consumption is reduced on the premise of the same grade, so that pumping resistance is small during conveyance, workability of the concrete is improved, the concrete is resistant to bleeding, concrete cracks are decreased, all components of the concrete are more disperse, and the concrete is integrally uniform after hardening.

The invention discloses a low-hardness solvent-proof polyurethane elastomer and a preparation method thereof. The raw material of the low-hardness solvent-proof polyurethane elastomer comprises two parts including a component A and a component B, wherein the component A comprises 100 parts of polyester polyatomic alcohol, 15 to 30 parts of toluene diisocyanate, 0 to 20 parts of soften flux, and 3 to 10 parts of filling material; the component B comprises 100 parts of chain extendor, 0 to 0.5 part of foam killer, and 0.02 to 0.05 part of catalyst. The chain extendor is composed of an alcohol amine chain extendor and a three-functionality alcohol chain extendor, wherein the alcohol amine chain extendor adopts a mixture of TIPA (triisopropanolamine) and DEA (diethanol amine) or TEA ( triethavolamine), and the mixture molar ratio is 1 to 0.5-1.5; the three-functionality alcohol chain extendor is made of GLY (glycerine),TMP (trimethylolpropane) or TME (trimethylolethane); the molar ratio of the three-functionality alcohol chain extendor to the alcohol amine mixture is 1 to 0.25-1.5. The material has a better mechanical property, and better solvent resisting performance and cutting machinability, and can be used in the fields of color coating and the like.

Provided are a composite cement enhanced grinding aid containing amide polyamine polycarboxylic acids and a preparation method therefor. The composite cement enhanced grinding aid is prepared from the following raw materials, by weight, 20-60% of amide polyamine polycarboxylic acids, 4-15% of triethanolamine, 2-12% of triisopropanolamine, 2-10% of diethanolisopropanolamine, 1.5-8.0% of diglycol, 1-6% of sodium lignosulfonate, 2.5-10.0% of sodium lauryl sulfate, 1-8% of waste molasses and 20-60% of water. The invention also comprises a preparation method for the composite cement enhanced grinding aid containing amide polyamine polycarboxylic acids. The obtained composite cement enhanced grinding aid has obvious effects at aspects of raising the machine-hour output, increasing fluidity of materials in grinding and increasing cement strength, and has good adaptability with concrete admixtures.