15results about How to "Good gel" patented technology

The invention provides a composite exciting agent and application thereof, and relates to the technical field of exciting agents, and the composite exciting agent comprises an alkaline exciting agent, a calcium source exciting agent and an auxiliary exciting component. Industrial solid waste materials such as the slag, the fly ash and the steel slag can work cooperatively in the same system, the gelling performance, the mechanical strength and the durability of the material are remarkably improved, and the purposes of solid waste resource utilization and low-carbon environmental protection are achieved.

The invention provides a nano modified composite cementing material, which relates to the technical field of cementing materials, and comprises the following components: slag, construction waste powder, a nano material, an alkali activator and water. By introducing the nano material, the pore structure of the solid waste-based material is remarkably improved, and the gelling capacity, mechanical property and durability of the solid waste-based material are improved. Meanwhile, the material also has relatively strong crack resistance, and the photocatalytic performance and the self-cleaning function of the material can be improved by introducing a functional nano material.

The invention relates to the technical field of 3D printing building materials, in particular to a 3D printing geopolymer composite material with low drying shrinkage and a preparation method thereof.The 3D printing geopolymer composite material is prepared from, by mass, 400 parts of slag powder, 320 parts of fly ash, 80 parts of steel slag micro powder, 1200 parts of quartz sand, 5.1-25.6 parts of sodium hydroxide, 46.4-66.9 parts of sodium silicate, 8 parts of barium chloride and 296 parts of water. The preparation method comprises the following steps: fully mixing the slag powder, the fly ash, the steel slag micro-powder and the quartz sand according to a preset mass ratio to obtain a uniform basic powder mixture; adding an alkali activator and barium chloride into the basic powder mixture, and continuously mixing until the mixture is uniform to obtain a first mixture; and adding water into the first mixture according to a preset water-binder ratio, and carrying out stirring treatment according to a preset stirring method to obtain the 3D printing geopolymer composite material with low drying shrinkage. According to the invention, the drying shrinkage can be reduced.

The invention discloses a gelator and a preparation method and application thereof, the structural formula of the gelator is # imgabs0 #, R1 is a side chain group connected to an amino acid central carbon atom except an amino group, a carboxyl group and a hydrogen atom; the amino acid is selected from one of glycine, alanine, valine, leucine, isoleucine, methionine, proline, tryptophan, serine, tyrosine, cysteine, phenylalanine, asparagine, glutamine, threonine, aspartic acid, glutamic acid, lysine, arginine, histidine, selenocysteine and pyrrole lysine; the amino acid is selected from one of glycine, alanine, valine, leucine, isoleucine, methionine, proline, tryptophan, serine, tyrosine, cysteine, phenylalanine, asparagine, glutamine, threonine, aspartic acid, glutamic acid, lysine, arginine, histidine, selenocysteine and pyrrole lysine; r2 is alkyl with the carbon atom number of 16 to 19; and R3 is 9-fluorenyl methoxy carbonyl group or t-butyloxycarbonyl group. The gelator has a hydrophobic long alkyl tail chain, can spontaneously gather and assemble into a three-dimensional network structure through hydrogen bonds, pi-pi interaction and hydrophobic force, and fixes an oil phase in an oil solvent or an oil-water mixture in an effective manner to form high-strength gel.

The invention belongs to the technical field of fire extinguishing agent materials, and provides an aluminum silicate gel fire extinguishing agent for lithium battery fire disasters and a preparation method of the aluminum silicate gel fire extinguishing agent. The fire extinguishing agent is composed of a modified aluminum silicate gelling agent, a modified emulsion, a cross-linking agent, an adsorbent, a flame retardant, a foam stabilizer and a foaming agent, a phosphate group is introduced into the aluminum silicate gelling agent, so that the aluminum silicate gelling agent has better free radical capturing capacity, hydroxyl free radicals and hydrogen free radicals in flames are eliminated, and the flame extinguishing effect is improved. According to the present invention, the modified emulsion is added, such that the good fire extinguishing effect can be provided, the re-combustion phenomenon of the lithium ion battery can be effectively prevented, the long-chain alkyl group and the epoxy group are introduced into the modified emulsion so as to improve the lipophilicity and the hydrophilicity of the emulsion, effectively reduce the surface tension, and improve the wetting effect on the surface of the lithium battery; the fire extinguishing effect is further enhanced, and meanwhile, the activated carbon adsorbent can well adsorb generated harmful gas when the lithium ion battery is on fire.

The invention discloses a modified calcium oxide expansive grouting material, the raw materials of which include: cement, calcium oxide expansive agent, water-based polyurethane, early strength agent, defoamer, water reducer and water; the mass ratio of cement, calcium oxide expansive agent, water-based polyurethane, early strength agent, defoamer, water reducer and water is 1000:30-90:8-12:50-70:2-4:10-14:500. The raw materials also include: limestone, silica powder, fly ash, sodium alginate, graphene oxide, microbial preparation, urea, calcium lactate; the mass ratio of limestone, silica powder, fly ash, sodium alginate, graphene oxide, microbial preparation, urea, calcium lactate and cement is 20-40:1-3:5-15:1-2:1-3:1-2:1-3:1-2:1000. The invention also discloses a preparation method and application of the modified calcium oxide expansive grouting material.

The invention discloses shield mortar with high solid waste content. The shield mortar comprises the following components in parts by weight: 30-60 parts of cement, 300-440 parts of slag, 120-200 parts of fly ash, 300-550 parts of tailing sand and 5-10 parts of a shield mortar additive, the shield mortar admixture is prepared from the following components in parts by weight: 200 to 500 parts of exciting agent, 50 to 100 parts of water reducing agent, 20 to 50 parts of thickening agent and 350 to 730 parts of filler. According to the shield mortar, the solid waste utilization rate reaches 90% or above, the cement consumption is reduced, the cost is reduced, and the performance meets the engineering requirements.

The invention discloses a proportioning method of corrosion-resistant durable concrete, which comprises the following components in parts by weight: 100-150 parts of cement, 30-50 parts of pulverized coal balls, 40-60 parts of superfine slag powder, 10-20 parts of silica fume, 200-300 parts of coarse aggregate, 150-250 parts of fine aggregate, 1-3 parts of a water reducing agent, 0.1-0.3 part of an air entraining agent and 40-60 parts of water, the cement is sulfate-resistant portland cement, the pulverized coal balls are spherical particles prepared from fly ash, and the fine aggregate is spherical particles prepared from fly ash. Active components in the fly ash and a cement hydration product calcium hydroxide are subjected to a secondary hydration reaction to generate more gelling substances, and the cement, the fly ash and the superfine slag powder jointly construct a compact structure, so that invasion of corrosive ions such as chloride ions and sulfate ions is effectively blocked, and the corrosion resistance of the cement is improved. The corrosion risk of concrete in marine environments, chemical pollution areas and other high-corrosion environments is greatly reduced, the water-binder ratio is reduced through the water reducing agent, pores formed by free water in the concrete are reduced, the impermeability of the concrete is remarkably improved, and therefore the durability of the concrete is improved, and the service life of the concrete is prolonged.

The application discloses a kind of based on molybdenum tailings stone powder replacement cement's cementitious material preparation method, the method includes: after molybdenum tailings are broken, ball milling, using alkaline activator and surface active regulator are wet mechanical chemical activation;Particle size distribution is obtained by airflow classification system regulation and control, continuous dense;The molybdenum tailings stone powder obtained and benchmark cement, auxiliary mineral admixture and functional additive are mixed according to proportion, form high packing density composite cement paste, wherein molybdenum tailings stone powder mass ratio reaches above preset threshold;After standard or accelerated maintenance, the obtained material 28 days compressive strength is not less than 42.5 MPa, 90 days strength continues to grow, and volume stability and working performance are excellent.The application is activated modification, grading optimization and multiple synergistic design, significantly improve molybdenum tailings cementitious activity, realize high value utilization of bulk solid waste at the same time, reduce energy consumption and carbon emission, suitable for large-scale production of green building materials.

The invention belongs to the technical field of sustained-release materials, and particularly relates to an ethylene sustained-release material and a preparation method and application thereof.The ethylene sustained-release material comprises chitosan quaternary ammonium salt, an ethephon solution, porous starch, calcium chloride and sodium alginate; the mass ratio of the chitosan quaternary ammonium salt to the ethephon to the porous starch to the calcium chloride to the sodium alginate is (0.3-0.6): (0.01-0.15): (8-12): (7-15): 1. The ethylene sustained-release material formed by the invention has a very good sustained-release effect on ethylene in a humidity environment, also has very good biodegradability, and avoids pollution to the environment.

The invention relates to the field of cement, and particularly discloses environment-friendly cement based on carbonaceous coal gangue and a manufacturing method of the environment-friendly cement. The environment-friendly cement based on carbonaceous coal gangue comprises the following raw materials: 60-80 parts of modified coal gangue powder; 30 to 40 parts of cement clinker; 10 to 20 parts of slag powder; 10 to 15 parts of desulfurized gypsum; 5-10 parts of tourmaline powder; 5-10 parts of ammonium sulfate micro powder; 3 to 7 parts of sodium carboxymethyl cellulose; the modified coal gangue powder is obtained by calcining and activating coal gangue powder and enhancing the coal gangue powder with a beta-alanine aqueous solution. According to the environment-friendly cement, the coal gangue is used as one of the main raw materials, and the coal gangue is converted into the environment-friendly cement with high additional value through activation and enhancement treatment. Not only is the dependence on natural resources reduced, but also the recycling of waste resources is realized, and the resource utilization rate is increased; moreover, the cement disclosed by the invention can keep relatively good working performance in a construction process.

The application relates to the field of cement, and particularly discloses an environment-friendly cement based on carbonaceous coal gangue and a manufacturing method thereof. The environment-friendly cement based on carbonaceous coal gangue raw materials comprise modified coal gangue powder 60-80 parts; cement clinker 30-40 parts; slag powder 10-20 parts; desulfurization gypsum 10-15 parts; tourmaline powder 5-10 parts; ammonium sulfate micro powder 5-10 parts; sodium carboxymethyl cellulose 3-7 parts; and the modified coal gangue powder is obtained by calcining and activating coal gangue powder and then treating the coal gangue powder with a beta-alanine aqueous solution. The environment-friendly cement disclosed by the application takes coal gangue as one of main raw materials, converts the coal gangue into environment-friendly cement with high added value through activation and enhancement treatment. This not only reduces the dependence on natural resources, but also realizes the recycling of waste resources and improves the resource utilization rate; and the cement disclosed by the application can maintain good working performance in the construction process.

The invention relates to a glass dumpling wrapper and a glass dumpling making method, and belongs to the technical field of food processing. The preparation method of the glass dumpling wrapper comprises the following steps: taking 6 parts of potatoes and 4 parts of potato starch; cleaning the potatoes, steaming and peeling; the steamed potatoes are put into a basin to be pressed into fragments, and the potatoes are made into fine and smooth mashed potatoes through repeated mashing and filtering for standby application; taking potato starch, pouring the potato starch into the mashed potato in three times according to a pouring ratio of 5: 3: 2, kneading into dough, uniformly stirring, and kneading with hands to obtain the dough; covering the kneaded dough with a cover, and standing for 20 minutes for standing; and preparing the dumpling wrappers. The preparation method of the glass dumplings comprises the following steps: obtaining the prepared glass dumpling wrappers for later use; preparing dumpling stuffing; and carrying out manual stuffing wrapping operation on the stuffing and the glass dumpling wrappers to obtain the glass dumplings. The packing box is high in transparency, the color of the stuffing inside the packing box can be clearly seen, and the packing box is very attractive. And the potato starch can be modified to eliminate viscosity to generate a loose structure, so that the taste is good.

The present invention discloses a phosphogypsum-waste concrete composite cementitious material for roads and a preparation method thereof. Through the compounding and use of waste concrete recycled powder and phosphogypsum, the micropowder undergoes significant changes in particle morphology, chemical activity and structural characteristics through the synergistic effects of multiple levels of processes such as specific microbial group treatment, airflow suspended aggregate and modifier. The particles of the cementitious material obtained by the present invention are more uniform, the surface is smooth, the structure is more compact, and the impurities are reduced; the potential volcanic ash activity inside is stimulated, the chemical activity is significantly improved, and it can better participate in the hydration reaction; and it forms a more stable and firm combination with other road construction materials, and the durability and mechanical properties are significantly enhanced, thereby improving the overall stability and service life of the road, so as to completely replace cement for application in road engineering. At the same time, the reduction and resource application of phosphogypsum and waste concrete recycled powder are achieved.

The present invention belongs to the technical field of nanofiber composite paper, and relates to a high-strength, high-thermal-conductivity PBO nano-insulating composite paper and a preparation method thereof. The raw materials of the PBO nano-insulating composite paper include: PBO fiber, mica sheet, chitosan, anhydrous sodium sulfate, methanesulfonic acid and trifluoroacetic acid. The present invention introduces mica sheet, chitosan and anhydrous sodium sulfate into the PBO nanofiber dispersion: by introducing mica sheet, the migration of carriers in the structure is hindered, and its insulation performance is improved; the introduction of chitosan improves the interface compatibility between PBO nanofiber and mica sheet, reduces the agglomeration phenomenon of mica sheet, enhances its mechanical properties, and reduces the interface thermal barrier between PBO nanofiber and mica sheet, reduces the scattering of phonons, and improves its thermal conductivity; sulfate ions in anhydrous sodium sulfate can absorb hydrogen ions in PBO nanofiber, improve their mutual π-π interaction, and promote their gelation. Thereby, the mechanical properties, thermal conductivity and insulation properties of PBO nano-insulating composite paper are improved.