9 results about "Imidazole acetate" patented technology

The application provides a production technology of ultra-high specific surface area high-dispersibility silicon dioxide for special tires, and belongs to the technical field of silicon dioxide production; the production method comprises the steps of liquid water glass pretreatment, initial mixing, first-time acid adding, simultaneous acid and alkali adding, and second-time acid adding; the liquid water glass pretreatment step is as follows: liquid water glass is added into deionized water, uniformly stirred, then amino-trimethylene phosphonic acid solution is added, stirring is carried out at 40-50 DEG C for 25-40 min, after the stirring is completed, 1-ethyl-3-methyl imidazole acetate is added, heat preservation stirring is carried out for 18-25 min, then microwave treatment is carried out, and pretreated liquid water glass is obtained; the prepared silicon dioxide has good dispersibility and high specific surface area, and can effectively improve the strength performance and stability of the special tire when used in the special tire.

The invention belongs to the technical field of chemical separation, and particularly relates to a device and a method for separating and purifying tetrahydrofuran and n-butyl alcohol from gamma-butyrolactone production industrial waste liquid. The device comprises a pre-separation tower, an n-butyl alcohol refining tower, a water treatment tower, a butanone removal tower, a tetrahydrofuran extraction tower and a solvent recovery tower, the quality purity of tetrahydrofuran separated by adopting the device can reach 99.95% or above, the recovery rate can reach 94.3% or above, the quality purity of n-butyl alcohol can reach 99.5% or above, and the recovery rate can reach 99% or above. According to the method, a separation method combining extractive distillation and heterogeneous azeotropic distillation is adopted, an ionic liquid 1-butyl-3-methylimidazole acetate is used as an extraction agent for extractive distillation separation of a tetrahydrofuran-water mixture, and a mixture of n-butanol and water is separated through heterogeneous azeotropic distillation without adding an entrainer. The process provided by the invention plays an important role in environmental protection and clean production, and can realize low-energy-consumption, clean and efficient separation of the azeotropic system.

The invention discloses a novel supramolecular assembly material with nitrogen fertilizer slow release and controlled release functions and a preparation method of the novel supramolecular assembly material, and belongs to the technical field of nitrogen fertilizer synergistic materials. The supramolecular assembly material is prepared from a composite plant source inhibitor, a functionalized hydrogen bond molecule donor, a novel composite dispersing agent and a high-efficiency cosolvent, the composite plant source inhibitor is composed of cyclopentanone, a coumarin derivative and a flavonoid compound. The functionalized hydrogen bond molecular donor is composed of citrulline, N-acetyl urea and ethyl carbamate; the novel composite dispersing agent is prepared from a naphthalene sulfonate formaldehyde condensate, sodium polyepoxysuccinate and nano silicon dioxide; the efficient cosolvent is prepared from acetic acid, acetonitrile and 1-butyl-3-methylimidazole acetate. The supramolecular assembly material is a supramolecular crystal formed by two or more molecules through intermolecular hydrogen bond interaction, and has excellent stability and controllability. After being mixed with a nitrogen fertilizer, the nitrogen fertilizer can be obviously prolonged.

The invention relates to the technical field of high polymer materials, and discloses a preparation method and application of a high-weather-resistance chlorinated polyethylene rubber and plastic material. The preparation method comprises the following steps: adding 1-butyl-3-methylimidazole acetate; cerium trifluoromethanesulfonate; dibenzoyl methane; the invention further provides a preparation method of the high-weather-resistance chlorinated polyethylene rubber and plastic material, and the preparation method comprises the following steps: firstly, preparing each stabilizer into a uniform liquid premixed master batch, and then carrying out melt blending on the liquid premixed master batch and resin, so that effective construction of a micro-reaction region is ensured. Through the synergetic stable system, intelligent response and long-acting catalysis of a stable function are realized, the problems of easy migration, non-uniform dispersion and short action period of a traditional auxiliary agent are fundamentally solved, the material is endowed with excellent long-term weather resistance and color stability, and the material is suitable for preparing products such as outdoor profiles and pipes.

The invention discloses an antibacterial plastic and a preparation method thereof, and belongs to the technical field of polymer composite materials. The plastic is prepared from the following raw materials in parts by weight: modified zinc oxide-chitosan composite particles, 2, 5-dihydroxy terephthalamide, a polyolefin matrix, a silane coupling agent, an antioxidant, a heat stabilizer and a lubricant. The composite particle is prepared by synergistically modifying zinc oxide through chitosan and 1-ethyl-3-methylimidazolium acetate ionic liquid, and the dispersity and antibacterial persistence of an inorganic phase are remarkably improved. The antibacterial rate, the thermal stability and the processing fluidity of the obtained plastic are obviously superior to those of a contrast sample, the antibacterial rate on escherichia coli and staphylococcus aureus reaches 99.9%, and the antibacterial lasting period exceeds 90 days. According to the technology, through ionic liquid-chitosan synergistic interface modification and small organic molecule hydrogen bond network construction, synergistic improvement of the antibacterial property and the processability is achieved, and prominent innovativeness and application value are achieved.

The application relates to the field of textile fabrics, and discloses a preparation process, product and application of super-elastic spandex blended fabric. The preparation process of the super-elastic spandex blended fabric comprises the following steps: spandex fiber and polyamide fiber are blended to obtain spandex blended yarn; rib knitting is performed to obtain spandex blended fabric; the spandex blended fabric is soaked in a pretreatment agent, dried, soaked in an elastic agent, repeatedly rolled, washed with water, dried, and super-elastic spandex blended fabric is obtained; dyeing, sanding, and heat setting are performed; the pretreatment agent is prepared from trimethylsiloxy silicate, 3-aminopropyl trihydroxysilane, carbon 12 to carbon 16 alkyl siloxane and an ethanol aqueous solution; and the elastic agent is prepared from methacrylated silk fibroin, 1-ethyl-3-methyl imidazole acetate and a dimethyl sulfoxide aqueous solution. The super-elastic spandex blended fabric of the application is applied to the field of stretch socks with high requirements for elasticity and supporting pressure, such as silk socks, pantyhose, medical compression stockings and the like, and has good elastic recovery and is easy to put on and take off.

The invention relates to the technical field of aramid paper, in particular to aramid insulation paper and a preparation method thereof.The preparation method comprises the steps that S1, 1-ethyl-3-methylimidazolium acetate and deionized water are evenly mixed to obtain an ionic liquid / water cosolvent; s2, adding carboxylated meta-aramid chopped fibers, aramid nanofibers, hyperbranched epoxy resin, amino modified boron nitride nanosheets and a dispersing agent into an ionic liquid / water cosolvent, and uniformly dispersing to obtain slurry; s3, performing multi-stage vacuum dehydration on the pulp to obtain a wet paper web; s4, carrying out electromagnetic sintering treatment on the wet paper web to melt the hyperbranched epoxy resin and trigger a cross-linking reaction between epoxy and carboxyl and amino; and S5, carrying out hot pressing treatment on the paper web treated in the step S4, cooling, carrying out spray quenching, freezing, and terminating a tempering reaction to obtain the aramid insulation paper. The preparation method provided by the invention realizes comprehensive improvement of the mechanical property, the insulating property and the heat-conducting property of the aramid paper.

The application provides ginger waste residue / cellulose electrostatic spinning fiber and a preparation method thereof. The ginger waste residue / cellulose electrostatic spinning fiber comprises the following components and their weight parts: 4-15 parts of cellulose solution; 1 part of ginger waste residue solution; wherein the solvents of the ginger waste residue solution and the cellulose solution are 1-butyl-3-methyl imidazole acetate salt solutions; the method comprises the following steps: S1, separately preparing ginger waste residue solution and cellulose solution; S2, mixing the ginger waste residue solution and the cellulose solution to prepare an electrostatic spinning solution; S3, preparing ginger waste residue / cellulose fiber by using an electrostatic spinning method; S4, drying the obtained ginger waste residue / cellulose fiber at room temperature after spinning; the application provides a method for preparing a filamentous fiber with large specific surface area and high porosity by using ionic liquid solutions of ginger waste residue and cellulose as raw materials and through an electrostatic spinning technology, and the process is simple; and the ionic liquid has good elution effect and is suitable for large-scale production.

The application relates to an ionic liquid conductive hydrogel as well as a preparation method and application thereof, and belongs to the technical field of polymer hydrogels. The ionic liquid conductive hydrogel has a three-dimensional network structure formed by polyvinyl alcohol and poly(3,4-ethylenedioxythiophene): polystyrene sulfonic acid (PEDOT:PSS) treated by imidazole salt ionic liquid, wherein the imidazole salt ionic liquid is 1-ethyl-3-methyl imidazole acetate. The ionic liquid is introduced into the hydrogel system formed by PEDOT:PSS and polyvinyl alcohol as a dopant, freezing crosslinking, solvent replacement and salting-out technology are combined, and the mechanical and electrical properties of the hydrogel are synergistically controlled. The strain sensor prepared based on the ionic liquid conductive hydrogel has excellent tensile property and fatigue resistance, high mechanical strength, low hysteresis and repeatability, and can be widely applied to the wearable sensor field such as rehabilitation training of patients with hand dysfunction, human motion state sensing and interactive control.