9 results about "Saponite" patented technology

The present application relates to wave-absorbing paint technical field, disclose a kind of preparation method and application of color zinc-containing hectorite wave-absorbing material, steps are: lithium smectite, urea and zinc salt are mixed, grinding, form mixture, then added to water, stirring is uniform, 100~160 ℃ hydrothermal reaction 5~10 h, cooling, after suction filtration wash multiple times, obtain zinc-containing lithium smectite;The zinc-containing lithium smectite, ethanol and organic pigment are mixed, grinding, high-temperature baking, obtain color zinc-containing hectorite wave-absorbing material.The material prepared by the present application has the triple effects of wave-absorbing, thickening and coloring, and can improve the application of lithium smectite in paint.

The invention discloses a method for preparing hectorite nano-powder through in-situ stripping of a synthetic hectorite reaction liquid, and belongs to the technical field of nano-powder preparation. The method aims at solving the problems that in the prior art, the technological process for preparing hectorite nanosheets is complex, the stripping efficiency is low, the product uniformity is poor, and continuous production is difficult. According to the technical scheme, the preparation method comprises the following steps: after a hydrothermal synthesis reaction of hectorite is completed, naturally cooling a reaction solution, and aging at room temperature for 24 hours; diluting with water until the mass concentration of hectorite is 1-10wt%; the diluent is directly subjected to high-pressure homogenization treatment under the pressure of 10-100 MPa without drying, and interlayer in-situ efficient stripping is achieved through generated shearing, impacting and cavitation effects; then carrying out filter pressing and washing on the homogenized liquid until the conductivity of the discharged liquid is lower than 5S / cm; and finally, strongly drying under the conditions that the temperature is 90-130 DEG C and the grading frequency is 5-25 Hz, so as to obtain the delaminated hectorite nano powder with the water content of less than or equal to 2.0%. Through an integrated strategy of synthesis, in-situ stripping and continuous treatment, the traditional drying and re-dispersing steps are omitted, the technological process is remarkably simplified, the energy consumption is reduced, and the stripping effect is remarkable.

The invention discloses a material for constructing a non-Newtonian fluid, the non-Newtonian fluid, a preparation method and a blast hole blocking device, and belongs to the technical field of blasting engineering. The material for constructing the non-Newtonian fluid is prepared from the following components in parts by mass: 53 to 77 parts of sodium bentonite, 10 to 18 parts of modified hectorite, 1 to 4 parts of water-soluble carbonate, 1 to 2 parts of water-soluble hexametaphosphate, 0.3 to 4.5 parts of polyethylene glycol and 0.2 to 4.5 parts of silicon dioxide. After the material for constructing the non-Newtonian fluid is mixed with water, the non-Newtonian fluid with high static viscosity and limited recovery time period can be formed, the limited recovery time is less than or equal to 5.8 s, and the static viscosity is greater than or equal to 8000 mPa.s, so that the non-Newtonian fluid has excellent impact load absorption efficiency and can well meet the blast hole filling requirement.

The application discloses a kind of magnetic hectorite / carboxymethyl chitosan composite adsorption materials and preparation method thereof, belong to the technical field of adsorption material preparation, the preparation method is first by preparing magnetic precursor, and then preparing magnetic hectorite, and then it is compounded with carboxymethyl chitosan, finally using cyclic freezing method to prepare magnetic hectorite / carboxymethyl chitosan composite adsorption material, the obtained magnetic hectorite / carboxymethyl chitosan composite adsorption material has the characteristics such as high adsorption efficiency and good regeneration performance, while preparation is cheap, suitable for industrialized preparation, has certain use prospect in water pollution control field.

The invention relates to a polylactic acid in-situ intercalation clay composite material and a preparation method thereof. The invention relates to a preparation method of a polylactic acid in-situ intercalation clay composite material, which comprises the following steps: (1) adding smectite into absolute ethyl alcohol, stirring at 60-80 DEG C for 1-2 hours, adding polyethylene glycol, and continuously stirring to react for 1.5-3.5 hours; after the reaction is finished, drying to obtain organic modified smectite; (2) adding isophorone diisocyanate and L-lactic acid into a solvent, stirring and reacting at 60-80 DEG C for 8-12 hours, adding the organic modified smectite, and stirring and reacting at 100-120 DEG C for 8-12 hours; after the reaction is finished, dissolving, precipitating, carrying out suction filtration and drying to obtain PLA-g-OSPT; (3) adding polylactic acid and PLA-g-OSPT into dichloromethane, carrying out ultrasonic treatment, and then carrying out stirring reaction for 5-8 hours; and after the reaction is finished, drying to obtain the polylactic acid in-situ intercalation clay composite material. According to the polylactic acid in-situ intercalation clay composite material and the preparation method thereof, by modifying the raw materials, the mechanical property, the thermal stability and the gas barrier property of the material are improved.

The invention discloses ultrahigh-fluidity grouting material as well as a preparation method and application thereof, and belongs to the technical field of building materials. The grouting material is prepared from the following raw materials: 40 to 60 parts of Portland cement, 20 to 30 parts of superfine mineral powder, 5 to 8 parts of nano sol, 1 to 3 parts of sodium modified layered silicate clay or synthetic hectorite and 0.5 to 1.2 parts of polycarboxylate superplasticizer, the water-binder ratio is 0.18. The preparation method of the ultrahigh-fluidity grouting material comprises the following steps: uniformly mixing all powdery materials to obtain premixed dry powder; adding water into the nano sol for dispersion to prepare a mixing solution containing the nano sol; and uniformly stirring the premixed dry powder and the mixing liquid containing the nano sol to obtain the ultrahigh-fluidity grouting material. The invention also discloses an application of the ultrahigh-fluidity grouting material in post-tensioned prestressed structure duct grouting. According to the invention, an inorganic synergistic system of nano sol-high CEC layered silicate clay is creatively constructed, the contradiction between the flowability and the stability of the traditional grouting material is solved, and excellent performance under an ultralow water-binder ratio is realized.

The application discloses a kind of solidified soil of enhanced bending resistance, raw materials thereof include: soil solidifying agent and soil, the mass ratio of soil solidifying agent and soil is 1-2:10000;The raw materials of soil solidifying agent include by weight parts: zirconium oxychloride 2-6 parts, cerium nitrate hexahydrate 0.1-1 part, reed fiber 5-15 parts, magnesium sulfate whisker 1-3 parts, poly (propylene glycol) -silane-poly (ethylene glycol) 2-8 parts, bisphenol A epoxy resin 15-35 parts, phthalic anhydride 0.1-1 part, ordinary portland cement 30-40 parts, fly ash 25-35 parts, montmorillonite micro powder 2-8 parts, silicon micro powder 1-5 parts, sodium silicate 1-5 parts, polycarboxylic acid polymer 1-2 parts, expanding agent 1-5 parts, sodium hexametaphosphate 1-2 parts, alkyl dimethyl benzyl ammonium chloride ammonium chloride 1-2 parts.The application discloses the above-mentioned method for manufacturing solidified soil of enhanced bending resistance.

The invention discloses Fe-N double-doped fluorine-free hectorite as well as a synthesis method and application thereof and a wastewater treatment process, and belongs to the field of synthesis of inorganic layered functional materials. According to the synthesis method, a pre-complexing-step hydrothermal in-situ doping-hot air activation technology is adopted, a fluoride-free composite mineralizer is used for replacing traditional fluoride, meanwhile, dual-element in-situ doping is achieved by introducing an Fe source and an N source in a staged mode, the hectorite is endowed with the composite function of heavy metal adsorption-organic dye catalytic degradation, and the comprehensive performance of the hectorite is improved. The Fe-N double-doped fluorine-free hectorite has the advantages that the adsorption capacity of the prepared Fe-N double-doped fluorine-free hectorite to Cr (VI) is larger than or equal to 245mg / g, the visible light degradation rate of the Fe-N double-doped fluorine-free hectorite to RhB is larger than or equal to 93% within 90 minutes, the water quality after treatment is superior to the GB 21900-2008 primary standard, and the material can be recycled for more than 12 times. In addition, the wastewater treatment process can realize synchronous advanced treatment of the composite wastewater containing Cr (VI) and rhodamine B through a continuous process.

This invention discloses a method for preparing and applying an intercalated montmorillonite / nanocellulose gel packaging film with preservation and monitoring functions. It belongs to the field of packaging materials. This invention uses an ultrasonic-assisted method to insert lithium saponite between montmorillonite layers. Using lithium saponite-intercalated montmorillonite as a template and ascorbic acid as a reducing agent, a lithium saponite-intercalated montmorillonite immobilized nano-copper composite antibacterial agent is prepared. Then, using nanocellulose as a matrix, anthocyanins are added as an indicator and mixed with the immobilized nano-copper antibacterial agent. The resulting intercalated montmorillonite / nanocellulose gel film packaging with preservation and monitoring functions is prepared through a "double drying" technique. When applied to food storage packaging, the lithium saponite-montmorillonite-nanocopper structure exhibits long-lasting antibacterial activity, while the anthocyanins provide an indicator function for monitoring food freshness.