61 results about "1-ethyl-3-methylimidazolium" patented technology

Use is made, for selectively hydrogenating the olefinic double bonds of block copolymers, at least one block of which comprises olefinic double bonds, using a catalyst based on a metal from Group VIII in a medium comprising an organic solvent for the copolymer and an ionic liquid as solvent for the catalyst, of a water-immiscible ionic liquid, preferably an ionic liquid for which the anion is the hexafluorophosphate anion and the cation is the 1-butyl-3-methylimidazolium (bmim+) or 1-ethyl-3-methylimidazolium (emim+) cation.Applied to poly(styrene)-b-poly(butadiene)-b-poly(methyl methacrylate) block copolymers, the poly(butadiene) block of which predominantly possesses a 1,4-microstructure, this process results in copolymers for which the degree of hydrogenation is at least equal to 50% and which exhibit a melting point of greater than 30 °C.

Representative embodiments provide a liquid or gel separator utilized to separate and space apart first and second conductors or electrodes of an energy storage device, such as a battery or a supercapacitor. A representative liquid or gel separator comprises a plurality of particles, typically having a size (in any dimension) between about 0.5 to about 50 microns; a first, ionic liquid electrolyte; and a polymer. In another representative embodiment, the plurality of particles comprise diatoms, diatomaceous frustules, and / or diatomaceous fragments or remains. Another representative embodiment further comprises a second electrolyte different from the first electrolyte; the plurality of particles are comprised of silicate glass; the first and second electrolytes comprise zinc tetrafluoroborate salt in 1-ethyl-3-methylimidalzolium tetrafluoroborate ionic liquid; and the polymer comprises polyvinyl alcohol (“PVA”) or polyvinylidene fluoride (“PVFD”). Additional components, such as additional electrolytes and solvents, may also be included.

The invention discloses cotton fibers with antibacterial and insect-resisting effects. The cotton fibers are characterized by being prepared from the following raw materials in parts by weight: 21-24 parts of cotton fibers, 10-12 parts of apocynum venetum fibers, 6-8 parts of silk fibers, 7-9 parts of cashmere fibers, 9-11 parts of pineapple fibers, 4-7 parts of polypropylene fibers, 6-8 parts of taxus chinensis superfine micro-powder, 3-5 parts of ailanthus altissima leaf extracted powder, 1-3 parts of zeolite powder, 1.1-2.3 parts of chitosan, 0.5-0.7 part of magnesium nitride, 0.8-1.4 parts of N,N-dicyanoethylaniline, 5-7 parts of sulfonated castor oil, 15-18 parts of fatty alcohol alkoxy ether, 1-2 parts of mashed garlic, 1.3-2.5 parts of cnidium monnieri cuss, 2.1-3.6 parts of coptis chinensis, 90-95 parts of 1-ethyl-3-methylimidazolium diethylphosphate, 95-100 parts of 1-butyl-3-methylimidazolium acetate, 3-6 parts of an addition agent and a proper amount of water. According to the cotton fibers, the taxus chinensis superfine micro-powder is added into raw materials by adopting an ultrasonic technology and a prepared cotton textile has a very good health effect and a useful pain-relieving effect on tumor patients and female symptoms; furthermore, the other active ingredients are added so that the good clothes properties of sweat absorption, breathability, softness, allergy prevention, easiness of washing, low probability of fuzzing and balling up and the like of natural cotton fibers are maintained, and the cotton fibers have good antibacterial and insect-resisting functions, a good electromagnetic radiation shielding function and the like.

Representative embodiments provide a liquid or gel separator utilized to separate and space apart first and second conductors or electrodes of an energy storage device, such as a battery or a capacitor. A representative liquid or gel separator comprises a plurality of particles selected from the group consisting of: diatoms, diatomaceous frustules, diatomaceous fragments, diatomaceous remains, and mixtures thereof; a first, ionic liquid electrolyte; and a polymer or, in the printable composition, a polymer or a polymeric precursor. Another representative embodiment further comprises a second electrolyte different from the first electrolyte; the first and second electrolytes comprise zinc tetrafluoroborate salt in 1-ethyl-3-methylimidalzolium tetrafluoroborate ionic liquid; and the polymer comprises polyvinyl alcohol (“PVA”) or polyvinylidene fluoride (“PVFD”). Additional components, such as additional electrolytes and solvents, may also be included.

The invention relates to a high capacity and Coulomb-efficiency lithium-ion capacitance battery anode system, belonging to the field of electrochemistry. The lithium-ion capacitance battery anode material comprises graphite-base anode material and activated carbon, and the electrolyte solution comprises ionic liquid and lithium salt, wherein the lithium salt is LiPF6 or LiN(CF3SO2)2, and the ionic liquid is 1-ethyl-3-methylimidazolium bis((trifluoromethyl)sulfonyl)imide salt or N-methyl, propyl piperidinium bis((trifluoromethyl)sulfonyl)imide which is used as solvent. The organic solvent of propylene carbonate, ethylene carbonate, dimethyl carbonate or ethyl methyl carbonate can be added into the electrolyte solution to be used as the functional additive. The capacity and the Coulomb efficiency of the lithium-ion capacitance battery anode material can be markedly improved in the electrolyte solution.

The invention discloses a synthesizing method of polyimide. The method comprises the following step that: an aromatic diamine compound and an aromatic dianhydride compound are subject to a polymerization reaction in an ionic liquid, such that polyimide is obtained. The ionic liquid can be any one of 1-ethyl-3-methylimidazolium tetrafluoroborate, 1-ethyl-3-methylimidazolium acetate, 1-ethyl-3-methylimidazolium dicyanamide, 1-butyl-3-methylimidazolium tetrafluoroborate, 1-butyl-3-methylimidazolium hexafluorophosphate, 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, and 1-butyl-3-methylimidazolium trifluoromethanesulfonate. The operation of the method is simple, the product made with the method is easy to purify and has high dissolvability (the product can be dissolved in regular solvents of N, N-dimethylacetamide, or tetrahydrofuran). The method has advantages of high yield, stable performance, good application prospect, and is suitable for industrialized production. Withthe method, polyimide films or fibers can be produced.

Disclosed water-washable silk composite fiber is characterized by being prepared from the following raw materials in parts by weight: 18-22 parts of silk, 11-13 parts of wool, 4-7 parts of cuprammonium rayon, 6-8 parts of polyester fiber, 8-10 parts of newdal fiber, 10-12 parts of bast fiber, 0.6-1.1 parts of nanometer TiO2, 6-9 parts of aloe viscose fiber, 0.7-0.9 parts of hydroxypropyl methyl cellulose, 0.8-1.4 parts of polypropylenglycol diglycidyl ether, 100-110 parts of 1-butyl-3-methylimidazolium dibutyl phosphate, 110-120 parts of 1-ethyl-3-methylimidazolium diethylphosphate, 1-3 parts of radix aucklandiae, 2-4 parts of cortex moutan, 3-5 parts of an auxiliary agent, and proper amount of water. By adding cuprammonium rayon and nanometer TiO2, the silk composite fiber has performances of resisting ultraviolet, resisting static electricity, resisting water washing and the like; and additionally by adding aloe viscose fiber, the Chinese herbal medicines and other compositions, the prepared silk composite fiber has the characteristics of resisting bacteria, diminishing inflammation, light and soft texture, excellent air permeability, high strength and high elasticity, and thus the silk composite fiber is repeatedly cleanable and keeps comfortableness, and is not flat or sunk after being used for a long time.

The object of the present invention is to provide a synthetic lubrication oil which shows low viscosity, is excellent in viscosity properties at high temperature and shows stable lubricating properties in a wide range of temperature. The synthetic lubricating oil is one comprising an ionic liquid containing an organic cation selected from the group consisting of an imidazolium cation, a pyridinium cation, a quaternary ammonium cation and a quaternary phosphonium cation and a bis(fluorosulfonyl)imide anion, and one comprising an ionic liquid composition which comprises an ionic liquid (A) containing a 1-ethyl-3-methylimidazolium cation and an ionic liquid (B1) containing a 1-methyl-3-propylimidazolium cation and / or an ionic liquid (B2) containing a 1-methyl-3-isopropylimidazolium cation.

Disclosed moisture-absorbing air-permeable silk composite fiber is characterized by being prepared from the following raw materials in parts by weight: 16-19 parts of silk, 13-15 parts of camel hair, 7-9 parts of coral fleece, 10-12 parts of ramie fiber, 8-11 parts of PTT short fiber, 5-7 parts of soybean fiber, 2.3-4.7 parts of milk protein fiber, 0.4-0.8 parts of tea polyphenol, 1.2-3.2 parts of plastic starch, 0.3-0.6 parts of sodium pyrophosphate, 1.2-2.4 parts of cocounut oil essence, 100-110 parts of 1-butyl-3-methylimidazolium dibutyl phosphate, 110-120 parts of 1-ethyl-3-methylimidazolium diethylphosphate, 1-2 parts of frankincense, 0.5-0.9 parts of sediment of human urine, 0.6-0.8 part of flos lonicerae, 2-4 parts of an auxiliary agent, and proper amount of water. By adding ramie fiber, the silk composite fiber has functions of resisting bacteria, inhibiting bacteria, eliminating and adsorbing odor, absorbing moisture and breathing, and the like, and by adding tea polyphenol, the improved silk composite fiber also has effects of resisting radiation, being smooth and light, keeping warm and resisting static electricity.

The invention relates to a method for electrodepositing palladium from an ionic liquid. The method is characterized in that an ionic liquid containing PdCl2 is utilized as an electrolyte, and a palladium element is directly obtained on a cathode in a constant current electrodeposition mode at a low temperature (25-70DEG C). The cation of the ionic liquid used in the invention is a 1,3-dialkyl substituted imidazole ionic liquid, and concretely is a 1-ethyl-3-methylimidazolium cation [EMIm]<+> having a low viscosity and a good conductivity at normal temperature, and the anion of the ionic liquid is trifluoroacetate (CF3COO<->), trifluoromethanesulfonate (CF3SO3<->), dicyanamide (DCA<->), ethylsulfate (C2H5SO4<->) and hexafluorophosphate (PF6<->). The cation is combined with one or more anions to form a substance, and the substance can be used as a PdCl2 solvent and an electrolyte. The method has the advantages of simple operation and low apparatus cost, and the electrolytic medium ionic liquid has the advantages of wide electrochemical window, good thermal stability, wide difference between a solidifying point and a boiling point and the like, so environment pollution caused by the inflammableness and the volatility of a common organic solvent is avoided.

The invention relates to a method for assisting in preparing antimonene by means of a 1-ethyl-3-methylimidazolium trifluoroacetate liquid phase and belongs to the field of preparation of novel inorganic two-dimensional materials. The simple method for assisting in stripping by means of an ionic liquid phase is used, antimony powder is stripped to obtain a small number of layers of antimonene. The preparation method provided by the invention has the characteristics that the method is simple and easy to operate, and the prepared antimonene is high in quality and large in concentration; and used ionic liquid has the advantages of being environmentally friendly, recyclable and the like.

Representative embodiments provide a liquid or gel separator utilized to separate and space apart first and second conductors or electrodes of an energy storage device, such as a battery or a supercapacitor. A representative liquid or gel separator comprises a plurality of particles, typically having a size (in any dimension) between about 0.5 to about 50 microns; a first, ionic liquid electrolyte; and a polymer. In another representative embodiment, the plurality of particles comprise diatoms, diatomaceous frustules, and / or diatomaceous fragments or remains. Another representative embodiment further comprises a second electrolyte different from the first electrolyte; the plurality of particles are comprised of silicate glass; the first and second electrolytes comprise zinc tetrafluoroborate salt in 1-ethyl-3-methylimidalzolium tetrafluoroborate ionic liquid; and the polymer comprises polyvinyl alcohol (“PVA”) or polyvinylidene fluoride (“PVFD”). Additional components, such as additional electrolytes and solvents, may also be included.

The invention provides a method for preparing a germanium nano array by inducing ionic liquid electro-deposition with a laser, and belongs to the technical field of preparation methods of the germanium nano array. The method solves the problems that a conventional preparation method of the germanium nano array requires a high temperature, is complex in preparation technology and is toxic. According to the method disclosed by the invention, an ionic liquid electro-deposition technology and a laser irradiation technology are combined, non-toxic pollution-free green ionic liquid 1-ethyl-3-methylimidazolium bis[(trifluoromethyl)sulfonyl]imide is used as a solvent, Gecl4 is used as an electrolyte, the electrolyte is irradiated by a pulsed laser, and a one-step method is adopted to prepare the germanium nano array in an electro-deposition manner. The preparation method does not require the high temperature and is simple in technology, convenient to operate and easy to realize.

The invention discloses Chinese herbal medicine antibacterial cotton fibers. The Chinese herbal medicine antibacterial cotton fibers are characterized by being prepared from the following raw materials in parts by weight: 20-23 parts of cotton fibers, 10-13 parts of modal fibers, 8-10 parts of bamboo pulp fibers, 7-9 parts of banana stem fibers, 5-8 parts of down feather fibers, 1-3 parts of sophora alopecuroide extract powder, 1-2 parts of attapulgite, 0.4-0.8 part of ammonium persulfate, 1.3-3.5 parts of glycine betaine, 18-22 parts of ethylene glycol monophenyl ether, 15-17 parts of benzyl benzoate, 4-5 parts of wild chrysanthemum, 3-4 parts of jasmine flowers, 1-2 parts of lonicera japonica, 100-110 parts of 1-ethyl-3-methylimidazolium diethylphosphate, 106-110 parts of 1-butyl-3-methylimidazolium acetate, 3-6 parts of an addition agent and a proper amount of water. According to the Chinese herbal medicine antibacterial cotton fibers, the operation is simple, the cost is low and the operability is strong; the wild chrysanthemum, jasmine flowers and lonicera japonica are added so that the Chinese herbal medicine antibacterial cotton fibers have an antibacterial function and also have a flower flavor; and meanwhile, various animal and plant fibers are also added to the Chinese herbal medicine antibacterial cotton fibers so that the strength and the heat preservation performance of the cotton fibers are remarkably improved.

The invention discloses a method for electroplating a Ni-Cr-PTFE composite coating in ionic liquid. In a non-water system and an inert-gas atmosphere, [BMIM]NiCl3 liquid containing nickel ions, [BMIM]CrCl4 liquid containing chromium ions, LiCl, PTFE and N,N-dimethyldodecylamine oxide (OB-2) are added into a certain amount of mixed solvent of 1-ethyl-3-methylimidazolium chlorine (EMIMCI) and ethylene glycol (EG), mechanical stirring and ultrasonic wave stirring are conducted for a certain time until the mixture is mixed evenly, and electroplate liquid is obtained; a cathode electrode and an anode electrode are placed into an electroplating bath, a certain space between the electrodes, temperature, impulse frequency, pulse duty factor, deposition period and average current density are kept, pulse electroplating is conducted at a certain stirring speed, and after electroplating, washing and drying are conducted, and the Ni-Cr-PTFE composite coating is obtained, wherein a pretreated matrix serves as the cathode electrode, and a platinum sheet or graphite serves as the anode electrode. Due to the fact that the PTFE and Cr are added, the antifriction performance and hardness of the coating are obviously improved, the process procedure is simple, the equipment investment is low, and the method is environmentally friendly and economical.

Representative embodiments provide a composition for printing a liquid or gel separator utilized to separate and space apart first and second conductors or electrodes of an energy storage device, such as a battery or a supercapacitor. A representative composition comprises a plurality of particles, typically having a size (in any dimension) between about 0.5 to about 50 microns; a first, ionic liquid electrolyte; and a polymer or polymeric precursor. In another representative embodiment, the plurality of particles comprise diatoms, diatomaceous frustules, and / or diatomaceous fragments or remains. Another representative embodiment further comprises a second electrolyte different from the first electrolyte; the plurality of particles are comprised of silicate glass; the first and second electrolytes comprise zinc tetrafluoroborate salt in 1-ethyl-3-methylimidalzolium tetrafluoroborate ionic liquid; and the polymer comprises polyvinyl alcohol (“PVA”) or polyvinylidene fluoride (“PVFD”). Additional components, such as additional electrolytes and solvents, may also be included.

Solid, or highly viscous, organic electrolytes consisting of alkylimidazolium cation with alkyl, PEGylated and fluorinated side chains of different molecular weights were synthesized and characterized (cf. chemical structures in Schemes 1 and 2). The PEGylated / fluorinated imidazolium iodide is a solid organic electrolyte that has a conductivity of about 2×10−5 S / cm at 30° C. The ionic conductivity could be significantly increased (1.11×10−4 S / cm at 30° C. and S / cm at 2.88×10−3 at 90° C.) by blending the PEGylated / fluorinated imidazolium iodide with another solid electrolyte, 1-ethyl-3-methylimidazolium iodide (EtMlml). The PEGylated imidazolium iodides synthesized in the present work have conductivities in the range 1.6×10−4 S / cm to 2×10−4 S / cm at 30° C. and viscosities in the range 620 cP to 720 cP at 30° C. The iodide counter ion in the present electrolytes supplies the anion for the I− / I3− redox mediators for DSSCs. Therefore, the organic electrolytes of the present invention can be used even without the addition of inorganic salts such as Lil or KI. We found that the addition of an organic solid electrolyte. EtMlml, resulted in an increase in the ionic conductivity of the PEGylated / fluorinated imidazolium iodides, whereas the addition of the inorganic Lil led to a decrease in ionic conductivity. All the electrolytes are thermally stable until high temperatures (250° C. to 300° C.).

The invention relates to a method for separating acetone and methyl alcohol by extractive distillation of ionic liquid. Acetone and methyl alcohol can form binary azeotrope which is difficult to separate by a conventional method. According to the method, acetone and methyl alcohol azeotrope is separated by using 1-ethyl-3-methylimidazolium dicyanamide ionic liquid as an extracting agent in an extractive distillation mode with a normal-pressure extractive distillation tower, a flash tank and a stripping tower only, along with simple process, low equipment cost, little extracting agent dosage and high product purity. The method adopts the ionic liquid with high boiling point, low steaming pressure, proper viscosity, low evaporation rate and easy recycling as the extracting agent, the composition of binary azeotrope of acetone and methyl alcohol can be broken through, and the method can be used for recycling acetone and methyl alcohol in industrial application.

The present invention provides an ionic liquid or plastic crystal comprising anions and cations, said anions including [C(SO2F)3]- and said cations including at least one type selected from the group consisting of 1-ethyl-3-methylimidazolium ([EMI]+), N,N-diethyl-N-methyl-(2-methoxyethyl ) ammonium ([DEME]+), N-methyl-N-propylpyrrolidinium ([Py13]+), N-methyl-N-propylpiperidinium ([PP13]+), tetramethylammonium ([N1111]+), tetraethylammonium ([N2222]+), triimethyl hexyl ammonium ([N6111]+), triethylhexylammonium ([N6222]+), N-methyl-N-ethylpyrrolidinium ([Py12]+), 1-butyl-3-methylimidazolium ([C4mim]+), and 1-hexyl-3-methylimidazolium ([C6mim]+).

The invention discloses a technology for separating an ethyl alcohol-water system by means of extractive distillation and flash coupling. The technology comprises the steps that ionic liquid is adopted as an extracting agent, the relative volatility of ethyl alcohol for water can be improved, and the separating efficiency can be improved to obtain an ethyl alcohol product, wherein the ionic liquid is 1-ethyl-3-methylimidazolium tetrafluoroborate and 1-ethyl-3-methylimidazolium dicyanamide. The adopted ionic liquid extracting agent can improve the relative volatility of ethyl alcohol in the ethyl alcohol-water system, and the solvent ratio is decreased. The ethyl alcohol with the purity larger than 99.9% is obtained. According to the technological process for separating ethyl alcohol-water by means of extractive distillation and flash coupling, the stable and continuous ionic liquid can be recycled.

Disclosed long-acting slow-release fragrant silk composite fiber is characterized by being prepared from the following raw materials in parts by weight: 16-23 parts of silk, 5-8 parts of white eider, 8-10 parts of acrylic fiber, 4-7 parts of basalt fiber, 6-8 parts of pearl fiber, 9-12 parts of kendir fiber, 7-9 parts of aloe viscose fiber, 1.2-2.5 parts of matricaria chamomilla extraction liquid, 1.1-2.3 parts of lemon juice, 0.4-0.7 parts of zinc acetate, 1-2 parts of talcum powder, 0.7-0.9 parts of stearic acid, 100-110 parts of 1-butyl-3-methylimidazolium dibutyl phosphate, 105-110 parts of 1-ethyl-3-methylimidazolium diethylphosphate, 2-4 parts of wild chrysanthemum flower, 1-3 parts of scutellaria baicalensis, 3-5 parts of an auxiliary agent, and proper amount of water. The original taste of conventional silk is changed, and the prepared silk composite fiber has the characteristics of durable refreshing fragrance, resistance to worm damaging, good handfeel, high elasticity and the like, gives people refreshing feeling and does not generate yellowing phenomenon.

The present invention provides an ionic liquid or plastic crystal comprising an anion and a cation, the anion comprising [C(SO2F)3]−, and the cation comprising at least one member selected from the group consisting of 1-ethyl-3-methylimidazolium ([EMI]+), N,N-diethyl-N-methyl-(2-methoxyethyl)ammonium ([DEME]+), N-methyl-N-propylpyrrolidinium ([Py13]+), N-methyl-N-propylpiperidinium ([PP13]+), tetramethylammonium ([N1111]+), tetraethylammonium ([N2222]+), trimethylhexylammonium ([N6111]+), triethylhexylammonium ([N6222]+), N-methyl-ethylpyrrolidinium ([Py12]+), 1-butyl-3-methylimidazolium ([C4mim]+), and 1-hexyl-3-methylimidazolium ([C6mim]+).

Colorless clear flexible polyurethane having a high dielectric constant and a self-repairing method thereof are disclosed. The polyurethane is prepared by mixing polyalkylenecarbonate diol end-cappedwith hydroxy, diisocyanate, 2,2'-dithiobisethanol, dibutyltin dilaurate and chloralkane; reacting the mixture to obtain an oligomer solution end-capped with isocyanate; adding a polyol crosslinking agent, lithium bis(trifluoromethanesulfonyl)imide and 1-ethyl-3-methylimidazolium bis[(trifluoromethyl)sulfonyl]imide into the oligomer solution; reacting the mixture at 40-60 DEG C for 0.5-1.5 h; and removing the solvent after the reaction is finished. Self-repairing of the colorless clear flexible polyurethane damaged is completed by fixing and tightly attaching damaged surfaces of the polyurethane with a clamp, and then heating the damaged surfaces at 80-150 DEG C for 0.5-2 h. The provided polyurethane has high tensile strength, high elongation at break, outstanding bending capability and a high dielectric constant.

Disclosed silk composite fiber with the anticancer function is characterized by being prepared from the following raw materials in parts by weight: 17-21 parts of tussah silk, 10-13 parts of waste eider down, 7-9 parts of cashmere fiber, 11-13 parts of rose fiber, 8-10 parts of alga fiber, 5-8 parts of taxus chinensis fiber, 4-7 parts of far-infrared ceramic fiber, 5.3-6.8 parts of nylon yarn fiber, 20-30 parts of rice washing water, 2-4 parts of dimethyl siloxane, 0.2-0.4 part of soda ash, 3-5 parts of acetyl tributyl citrate, 1.2-3.5 parts of kaolin, 95-105 parts of 1-butyl-3-methylimidazolium dibutyl phosphate, 100-120 parts of 1-ethyl-3-methylimidazolium diethylphosphate, and 3-6 parts of an auxiliary agent. By adding taxus chinensis fiber, once the inside-contained paclitaxel smell forms microcirculation in human body capillary micropores, cancer cell division is effectively inhibiting and cance cell propagation is prevented. Additionally, a plurality of other beneficial compositions are added, and the prepared silk composite fiber is rich in elasticity, bulkiness and flexibility, and the added Chinese herbal medicines are pleasant in smell, are capable of promoting sleep and are free of toxic and side effects.

The invention relates to a thermoplastic polyurethane elastomer (TPU). First, (a) diisocyanate, (b) polyester polyol, (c) at least one chain-extender, (d) 1-ethyl-3-methylimidazolium trifluoromethanesulfonate, (e) a catalyst and (f) optional additives are prepared; the components (a), (b), (c), (d), (e) and (f) are sequentially mixed or mixed at a same time, such that a reaction mixture is obtained; and a reaction is carried out under a temperature of 210-250 DEG C, such that the elastomer is obtained. According to the invention, 1-ethyl-3-methylimidazolium trifluoromethanesulfonate is introduced into the raw materials of the thermoplastic polyurethane elastomer, such that a material antistatic property is improved, and surprisingly the material has good miscibility with other components. The prepared antistatic thermoplastic polyurethane elastomer also shows good mechanical performances such as tensile strength and ultimate elongation rate. The material also has excellent wear resistance.

The invention discloses a compound solvent for separating cycloalkanes and aromatic hydrocarbons from naphtha, and a preparation method and application of the compound solvent. The compound solvent comprises 1-ethyl-3-methylimidazolium bis((trifluoromethyl)sulfonyl)imide and sulfolane according to a mass ratio of 1:(2-100). The preparation method comprises the following steps: keeping the temperature of sulfolane at 60-80 DEG C, then dropwise adding 1-ethyl-3-methylimidazolium bis((trifluoromethyl)sulfonyl)imide, and carrying out stirring until the compound solvent is uniformly mixed. The compound solvent disclosed by the invention is suitable for separating cycloalkanes and aromatic hydrocarbons from naphtha with relatively low aromatic content and high naphthenic content, so that components in the naphtha can be separated according to components, and then the components are fully used.

The invention discloses cotton fibers capable of releasing far infrared negative ions. The cotton fibers are characterized by being prepared from the following raw materials in parts by weight: 20-23 parts of cotton fibers, 7-9 part of active carbon fibers, 6-10 parts of camel hair fiber, 10-12 parts of ramie fibers, 5-7 parts of polypropylene fibers, 3-5 parts of fructus xanthii extract, 2-4 parts of far infrared negative ion powder, 1-2 parts of nano aluminum oxide, 1-3 parts of medical stones, 2.1-3.5 parts of hot melt adhesive powder, 15-18 parts of C12 alcohol polyoxyethylene ether, 9-12 parts of citric acid, 12-15 parts of monoacetin, 2-4 parts of divaricate saposhnikovia root, 1-3 parts of isatis tinctoria, 100-110 parts of 1-ethyl-3-methylimidazolium diethylphosphate, 95-105 parts of 1-butyl-3-methylimidazolium acetate, 4-6 parts of an addition agent and a proper amount of water. According to the cotton fibers capable of releasing the far infrared negative ions, the fructus xanthii extract is added into the raw materials by using an ultrasonic technology and has a good bacterium inhibition effect on staphylococcus aureus; and meanwhile, active ingredients including the far infrared negative ion powder, divaricate saposhnikovia root, isatis tinctoria and the like are added so that the prepared cotton fibers can release the negative ions beneficial to a human body and also have the effects of resisting bacteria, preventing mites, retarding flame and the like.

A gel polymer electrolyte comprises polymethyl methacrylate, an ionic liquid, a lithium salt and mesoporous molecular sieve SBA-15; the ionic liquid is at least one selected from 1-ethyl-3-methylimidazolium tetrafluoroborate, 1-ethyl-3-methylimidazolium hexafluorophosphate, 1-ethyl-3-methylimidazolium trifluoromethanesulfonate and 1-ethyl-3-methylimidazolium bis[(trifluoromethyl)sulfonyl]imide; the lithium slat is at least one selected from lithium tetrafluoroborate, lithium hexafluorophosphate, lithium trifluoromethanesulfonate and lithium bis(trifluoromethanesulfonyl)imide; and the mass ratio of polymethyl methacrylate, the ionic liquid, the lithium salt and mesoporous molecular sieve SBA-15 is 1:(0.8-1.5):(0.1-0.3):(0.04-0.08). The gel polymer electrolyte is relatively high in tensile strength. The invention also provides a preparation method of the gel polymer electrolyte.