323 results about "Trimethylene glycol" patented technology

The invention discloses an organic amine composite absorbent for carbon capture and application thereof, and belongs to the technical field of carbon dioxide capture, the organic amine composite absorbent for carbon capture is in a solution state and comprises the following components: a main agent, an auxiliary agent, an accelerant A, an accelerant B and water; wherein the mass ratio of the main agent to the auxiliary agent is 2: (1-2); the mass ratio of the auxiliary agent to the accelerant A is 2: (1-2); the mass ratio of the accelerant A to the accelerant B is 2: (1-2); the total mass concentration of the main agent, the auxiliary agent, the accelerant A and the accelerant B in the organic amine composite absorbent for carbon capture is 30-40 wt%; the main agent is selected from N-methyldiethanolamine or N, N-diethyl ethanolamine, the auxiliary agent is selected from piperazine or hydroxyethyl ethylenediamine, the accelerant A is selected from triethylene glycol monomethyl ether and / or ethylene glycol monomethyl ether, and the accelerant B is selected from ethyl butyl ether and / or isobutyl ether. The organic amine composite absorbent for carbon capture has a wide application prospect in removal of carbon dioxide in flue gas.

The present invention belongs to the technical field of graphite oxide reduction, and discloses a graphene reduced by graphene oxide, a graphene film and a preparation method thereof. The method comprises the following steps: dispersing graphene oxide in a mixed solution of triethylene glycol to form a graphene oxide dispersion, irradiating with a laser wavelength of 1000 to 1100 nm, washing and drying after the irradiation to obtain graphene. The present invention combines a laser with a wavelength of 1064 nm with a dispersion based on triethylene glycol, which can provide extremely high transient energy for reactants, thereby promoting a deprotonation process and a reduction process, and the prepared graphene is completely reduced, has a large size and few defects.

The invention relates to the field of battery materials, in particular to a halogen-free electrolyte for a magnesium metal battery and a preparation method of the halogen-free electrolyte. The magnesium salt comprises at least one of bis (trifluoromethanesulfonyl) imide magnesium and magnesium trifluoromethanesulfonate; the additive is prepared from at least one of indole, 3-azaindole, 4-azaindole, 5-azaindole, 6-azaindole, 4-amino indole, 5-amino indole, 6-amino indole and 7-amino indole; the organic solvent comprises ethylene glycol dimethyl ether, diethylene glycol dimethyl ether, triethylene glycol dimethyl ether, tetraethylene glycol dimethyl ether, 1, 3-dioxolame or 1, 3-dioxane. The preparation method comprises the following steps: sequentially adding the magnesium salt and the additive into the organic solvent, and stirring and reacting at room temperature for 1 min to 24 h to obtain the halogen-free electrolyte for the magnesium metal battery. And the prepared electrolyte has excellent performances of small overpotential, long service life and wide electrochemical window, and has a good commercial application prospect.

The invention discloses UV glue for a holographic IMR diaphragm and the holographic diaphragm prepared from the UV glue. The UV glue is prepared from the following raw materials: vinyl silane, polyester acrylate, aliphatic polyurethane acrylate, trifunctional sulfydryl modified acrylate, a bifunctional active monomer, a trifunctional active monomer and a photoinitiator. The bifunctional active monomer comprises one or more of dipropylene glycol diacrylate, tripropylene glycol diacrylate and triethylene glycol diacrylate. And the trifunctional active monomer is trimethylolpropane triacrylate or pentaerythritol triacrylate. A silicon-oxygen bond in the added vinyl silane has hydrophilicity and can be subjected to a hydrolysis reaction with water molecules in air in a high-temperature and high-humidity environment to generate a Si-OH intermediate, and then the Si-OH intermediate and the silicon-oxygen bond are condensed to form a Si-O-Si bond, so that the compactness of a cross-linked network is further enhanced; and the light-cured coating has excellent water resistance and temperature resistance.

The invention relates to the technical field of PVB (polyvinyl butyral) films, in particular to a full-wave-band heat-shielding modified PVB composite film as well as a preparation method and application thereof. The full-band heat shielding modified PVB composite film provided by the invention is of an asymmetric structure and comprises a modified PVB matrix and a heat shielding coating covering one side of the modified PVB matrix, the modified PVB matrix is prepared from the following components: polyvinyl butyral and an epoxy silane coupling agent; the heat shielding coating comprises the following components: CsWO3 nano powder, ZnO nano powder, water-based acrylic resin and a composite dispersion system; the composite dispersion system comprises triethylene glycol di-2-ethylhexoate, polyvinylpyrrolidone and diethylene glycol monobutyl ether. The full-wave-band heat shielding modified PVB composite film provided by the invention can realize 780-2500nm full-wave-band near-infrared high-efficiency barrier, improve the binding force and performance stability of a heat shielding coating, and meet the production requirements of light weight, environmental protection and industrialization at the same time.

The invention provides wear-resistant fluorescent waterborne polyurethane and a preparation method thereof, and relates to the technical field of novel fluorescent polymer materials. The wear-resistant fluorescent waterborne polyurethane is prepared from the following raw materials in parts by weight: 5 to 15 parts of perylene bisimide modified monomer, 20 to 45 parts of oligomer polyol, 35 to 45 parts of isocyanate, 2 to 7 parts of hydrophilic monomer, 5 to 10 parts of chain extender, 2 to 5 parts of neutralizer and 0.01 to 0.1 part of catalyst, wherein the perylene bisimide modified monomer takes perylene bisimide as a center, the nitrogen end of the perylene bisimide is grafted with a cage type polysilsesquioxane group, and the bay position of the perylene bisimide is modified with a triethylene glycol group. The wear-resistant fluorescent waterborne polyurethane disclosed by the invention has high solid-state fluorescent quantum yield and excellent physical and mechanical properties.

The invention relates to a preparation method of triethylene glycol diacetate, and belongs to the technical field of organic synthesis. The method comprises the following steps: adding triethylene glycol, an acetylation reagent and a multifunctional catalyst into a reaction kettle provided with a stirrer, a thermometer and a reflux condensing tube, and stirring and heating for reaction under the protection of nitrogen; after the reaction is finished, cooling reaction liquid to room temperature, and filtering and recovering the catalyst; performing reduced pressure distillation and silica gel column purification on the filtered reaction liquid to obtain triethylene glycol diacetate; the multifunctional catalyst is prepared from mesoporous silicon dioxide microspheres, 3-mercaptopropyltrimethoxysilane, 4-vinyl benzo-18-crown ether, sodium ethoxide, absolute ethyl alcohol, an ethanol solution of tetrabutyl titanate and chlorosulfonic acid. The preparation method comprises the following steps: preparing the mesoporous silicon dioxide microspheres, 3-mercaptopropyltrimethoxysilane, 4-vinyl benzo-18-crown ether, sodium ethoxide, absolute ethyl alcohol, the ethanol solution of tetrabutyl titanate and chlorosulfonic acid; the triethylene glycol diacetate prepared by the method has high yield and high purity, and can meet industrial production and market requirements.

Processes for recovering dialkyl terephthalates. The processes can include exposing a polyester composition to one or more glycols to depolymerization conditions thereby providing one or more depolymerization products. The one or more glycols can include diethylene glycol (DEG), triethylene glycol (TEG), 1,4-cyclohexanedimethanol (CHDM), poly(ethylene glycol) (PEG), neopentyl glycol (NPG), propane diol (PDO), butanediol (BDO), 2-methyl-2,4-pentanediol (MP diol), poly(tetramethylene ether)glycol (PTMG), or a combination thereof. The one or more depolymerization products can be exposed to an alcoholysis process to recover dialkyl terephthalate. Optionally, ethylene glycol (EG) produced from the depolymerization process can be recovered and re-used in a subsequent dialkyl terephthalate recovery or other process.

A novel thermoplastic polyurethane composition is disclosed which comprise the reaction product of a polyisocyanate component, a polyol component, wherein the polyol component comprises a polyester comprising the reaction product of triethylene glycol and / or tetraethylene glycol with a diacid having 6 carbon atoms or fewer, and, optionally, a chain extender component.

The invention relates to the technical field of waste gas treatment, and particularly discloses waste gas treatment liquid for treating large-air-volume low-concentration waste gas through a water-based method. The waste gas treatment liquid for treating the large-air-volume low-concentration waste gas through the water-based method comprises a surfactant, a defoaming agent, a dissolution accelerant and water. Wherein the surfactant can be selected from any one or more of polyoxyethylene alkyl ether, polyoxyethylene alkyl ether and polyoxyethylene fatty acid ester; the dissolution accelerant can be selected from any one or more of ethylene glycol monobutyl ether, diethylene glycol monobutyl ether and triethylene glycol monobutyl ether; the defoaming agent is any one or more of butanol, dimethyl silicone oil, silicone and polyether modified polysiloxane. When the waste gas absorption liquid obtained in the invention is used for treating waste gas, the absorption efficiency of methanol, butanol, benzene, toluene, xylene, ethyl acetate, dichloromethane and acetone is obviously improved, and the absorption efficiency of the waste gas absorption liquid on aromatic hydrocarbon, halogenated hydrocarbon, alcohol, ketone and ester pollutants is improved.

To provide a removal composition which is capable of satisfactorily removing a strong resist, and a polymer residue and a resist residue on a substrate for semiconductor device production, while reducing the toxicity to humans, and which is also capable of suppressing damage to a wiring metal.SOLUTION: The present invention relates to a nonaqueous composition which is used for removing a polymer residue, a resist, and / or a resist residue on a substrate for semiconductor device production by applying ultrasonic waves thereto, and which contains 80-100 mass% of diethylene glycol monoethyl ether or triethylene glycol monomethyl ether.SELECTED DRAWING: Figure 1

The invention discloses a wide-voltage wide-temperature-range sodium-ion battery electrolyte and a preparation method and application thereof, and belongs to the technical field of sodium-ion battery electrolytes.The wide-voltage wide-temperature-range sodium-ion battery electrolyte comprises sodium salt, an organic solvent and an additive, the organic solvent is selected from one or more of ethylene carbonate, propylene carbonate, ethyl methyl carbonate, dimethyl carbonate, diethyl carbonate, ethylene glycol dimethyl ether, diethylene glycol dimethyl ether and triethylene glycol dimethyl ether, and the additive is selected from one or more of fluoroethylene carbonate, allyl-1, 3-propane sultone, 1, 3-propylene sultone, 1, 3-propylene sultone and 1, 3-propylene sultone. The additive is one or more of 1, 3-propyl sultone, methylene methane disulfonate, ethylene sulfate, trifluoromethanesulfonic anhydride, pentaerythritol bicyclic sulfate, tri (trimethylsilane) phosphate, tri (trimethylsilane) phosphite, tri (trimethylsilane) borate, acesulfame sodium and aluminum trifluoromethanesulfonate, and the additive is one or more of 2, 3-propylene sultone, methylene methane disulfonate, ethylene sulfate, trifluoromethanesulfonic anhydride, pentaerythritol dicyclosulfate, tri (trimethylsilane) phosphate, tri (trimethylsilane) phosphite, tri (trimethylsilane) borate, tri (trimethylsilane) phosphate and tri (trimethylsilane) borate. The electrolyte provided by the invention not only keeps high coulombic efficiency at low temperature, but also has good cycle stability at high temperature.

The invention relates to a dental resin composition with an antibacterial function as well as a preparation method and a detection method thereof. The composition comprises a basic resin matrix and a basic resin matrix, wherein the basic resin matrix is prepared from the following components in percentage by weight: 35wt% of bisphenol A diglycidyl ether dimethacrylate (Bis-GMA), 40wt% of triethylene glycol dimethacrylate (TEGDMA), 24wt% of 2-hydroxyethyl methacrylate (HEMA), 0.5 wt% of camphorquinone (CQ) and 0.5 wt% of N, N-dimethyl-4-ethyl aminobenzoate (EDMAB); chlorinated catechol functional monomer: chlorinated catechol monomer Cl-DMA as shown in formula (I), chemical name of chlorinated catechol monomer Cl-DMA is N-(2-chloro-4, 5-dihydroxyphenethyl) methacrylamide, and structural formula of chlorinated catechol monomer Cl-DMA is # imgabs0 #

A low-concentration and low-temperature electrolyte for sodium ion batteries and a preparation method and application thereof, which relates to an electrolyte for sodium ion batteries and a preparation method and application thereof. It aims to solve the technical problems of high cost and low specific capacity of existing low-concentration electrolytes for sodium ion batteries. The electrolyte of the present invention is a mixture of sodium salt, a strong solvating ether solvent and a weak solvating ether solvent, wherein the strong solvating ether solvent is ethylene glycol dimethyl ether, diethylene glycol dimethyl ether, triethylene glycol dimethyl ether or tetraethylene glycol dimethyl ether; the weak solvating ether solvent is dimethoxymethane, dimethoxyethane, trimethoxymethane or trimethoxyethane; the preparation method is: dissolving the sodium salt in a solvent in an anhydrous and oxygen-free argon glove box; the sodium ion battery assembled with the electrolyte has an initial specific capacity of 300 mAh g at -20°C. ‑1 , 230mAh g after 120 cycles ‑1 The battery has an operating temperature of ‑20~25℃ and can be used in the field of sodium ion batteries.

The invention provides a dental resin mixture, dental resin, a preparation method of the dental resin, a color difference uniformity evaluation method and a dental restoration. The dental resin mixture comprises inorganic particles, a polymerizable monomer and an initiator, wherein the particle size of the inorganic particles is 0.1-6 [mu] m, and the polymerizable monomer comprises triethylene glycol dimethacrylate and urethane dimethacrylate in a mass ratio of (1-4): (6-10). The invention provides the dental resin and the dental prosthesis which have the advantages that the chromatic aberration among all local areas is small, and the overall color uniformity of the product is better.

The invention provides a high-stability wear-resistant bio-based hydrophobic resin composition, a dental material, a preparation method and application, and relates to the technical field of biomedical materials. The invention provides a high-stability wear-resistant bio-based hydrophobic resin composition. The coating is prepared from epoxy soybean oil acrylate, triethylene glycol dimethacrylate, perfluoroalkyl acrylate, hydrophilic nano silicon dioxide, hydrophobic nano silicon dioxide, gamma-methacryloyloxypropyltrimethoxysilane, camphorquinone and ethyl 4-dimethylaminobenzoate. According to the invention, epoxy soybean oil acrylate is used as a resin matrix to replace common bisphenol A resin, so that the adhesive is more environment-friendly and has sustainability; and hydrophilic nano silicon dioxide and hydrophobic nano silicon dioxide are introduced, so that the hydrophobic stability of the material is improved while the mechanical property is enhanced, and the hydrophobic property is not easy to decline after cold and hot cycling treatment.

The invention discloses high-dispersion polyhedral nano silver powder as well as a preparation method and application thereof, and belongs to the technical field of preparation of electronic materials and nano powder. The problems that an existing polyhedral nano silver powder preparation method is difficult in morphology control and poor in dispersity, uses toxic reagents and the like are solved. According to the method, the growth process of the nano-silver crystal faces in a triethylene glycol system is regulated and controlled by means of high adsorption capacity and coordination of high-valence metal ions, the high-valence metal ions are selectively adsorbed on different crystal faces of silver, the surface energy and the growth rate of each crystal face are changed, and therefore control over the polyhedral morphology of the nano-silver powder is achieved. Besides, due to the fact that different high-valence metal ions are different in radius, charge number and adsorption capacity, the different high-valence metal ions have different regulation and control effects on the silver crystal face, and then controllable preparation of the polyhedral nano silver powder is achieved by selecting the different high-valence metal ions.

The invention relates to the technical field of ink-jet ink, in particular to dye-type ink-jet ink as well as a preparation method and application thereof. Compared with the prior art, the invention has the following beneficial effects: glycerol plays a moisturizing role, triethylene glycol plays an anti-freezing role, triethylene glycol monobutyl ether plays a role of a penetrant, triethanolamine is used as a pH value regulator and a cosolvent, and the leveling agent, the lubricant and the silicone oil play a role of a surfactant. According to the invention, through reasonable matching of the components and control of performance parameters such as pH value, conductivity, surface tension, viscosity and the like, the obtained dye-type ink-jet ink has small color difference with OEM ink, and the cost is low.

The invention provides a deep eutectic solvent and a method for recovering metal elements in a decommissioned lithium battery. The deep eutectic solvent is obtained by mixing a hydrogen bond donor and a hydrogen bond acceptor and reacting; the temperature in the reaction process is 70-100 DEG C, and the molar ratio of the hydrogen bond donor to the hydrogen bond acceptor is 1: (2-10); wherein. The hydrogen bond donor comprises at least one of imidazole, 1, 2, 4-triazole and 1-ethyl-3-methylimidazole, and the hydrogen bond receptor comprises at least one of propylene glycol, glycerol, n-butyl alcohol and triethylene glycol. The deep eutectic solvent has high safety, and when the deep eutectic solvent is used for recycling the positive electrode material of the decommissioned lithium battery, the leaching rate of the lithium element and the recycling rate of the cobalt element or the manganese element can be effectively increased, and the deep eutectic solvent has high recycling purity.

The invention relates to the technical field of polyvinyl butyral modified materials, and discloses a modified PVB (polyvinyl butyral) material based on nano-silica and a preparation method thereof, the modified PVB material is prepared from the following raw materials by weight: 100 parts of polyvinyl butyral resin; 25 to 45 parts of triethylene glycol di-2-ethylhexoate; 0.5 to 5.0 parts of nano silicon dioxide; 0.05 to 0.50 part of a titanate coupling agent; 0.02 to 0.15 part of magnesium stearate; and 1.0 to 5.0 parts of epoxidized soybean oil. The method comprises the following steps: dispersing silicon dioxide by a plasticizer, dehydrating, adding a coupling agent for in-situ grafting, and compounding a stabilizer to prepare mother liquor; infiltrating the mother liquor into the resin to obtain a swelling material; and performing temperature-controlled extrusion. The modified PVB material based on nano silicon dioxide prepared by the invention solves the problems of particle agglomeration and yellowing, and has high transparency, high strength and excellent heat aging resistance.

An ink includes: a pigment, a pigment dispersion resin, 7 mass % or more and 20 mass % or less of polyethylene glycol having a molecular weight of 200 or more and 600 or less, 1 mass % or more and 15 mass % or less of 3-methyl-1,5-pentanediol, 1 mass % or more and 10 mass % or less of triethylene glycol monobutyl ether, and water.

The invention discloses a medium-matte polyester film which is composed of a base material layer A, a surface matte layer B and a matte coating C sprayed on the outer side of the surface matte layer B. The base material layer A is composed of polyethylene glycol terephthalate and silicon dioxide nanoparticles. The surface matte layer B is composed of polyethylene glycol terephthalate, polytetrafluoroethylene and polyethylene glycol nanoparticles; the matte coating C is prepared from polyurethane acrylate, organic silicon silicon dioxide particles, triethylene glycol tripropoxy acrylate, benzophenone, polyether siloxane and polydimethylsiloxane. According to the medium-matt-degree polyester film, by optimizing the proportion of components such as PET, SiO2, PTFE and PEG, the good mechanical strength, wear resistance and matt effect are balanced, and the medium-matt-degree polyester film has excellent light transmittance and ultraviolet resistance. The film not only has low glossiness and high haze, but also shows excellent chemical resistance, scratch resistance and long-term stability, and is suitable for high-end applications such as polaroid release films and optical devices.

The invention relates to the technical field of batteries, and discloses an electrolyte and application thereof, and a lithium carbon fluoride battery. The electrolyte comprises a lithium salt and an organic solvent; wherein the lithium salt is lithium bis (fluorosulfonyl) imide; the organic solvent is selected from one of ethylene glycol dimethyl ether, diethylene glycol dimethyl ether, triethylene glycol dimethyl ether, tetraethylene glycol dimethyl ether, ethylene glycol diethyl ether, ethylene carbonate, propylene carbonate, dimethyl carbonate, ethyl methyl carbonate, dimethylformamide, dimethylacetamide and dimethyl sulfoxide. The electrolyte can be applied to preparation of a lithium primary battery. The invention also relates to a lithium carbon fluoride battery comprising the electrolyte. The electrolyte system provides an optimized solution for the preparation of the high-energy-density lithium carbon fluoride battery, has a wide application prospect, can remarkably improve the performance of the battery, reduces the production cost, and promotes the further development of the lithium carbon fluoride battery technology.

In order to overcome the problems of high recovery price, high energy consumption and low utilization rate of the existing kettle residue for the production of ethylene glycol by ethylene carbonate alcoholysis method, the application provides a kettle residue recovery method and device for the production of ethylene glycol by ethylene carbonate alcoholysis method, and the application provides a kettle residue recovery method for the production of ethylene glycol by ethylene carbonate, which comprises the following steps: under the conditions of temperature 150-250 DEG C and pressure 0.6-2 MPa, the ethylene glycol in the kettle residue produced by the preparation of ethylene glycol by ethylene carbonate alcoholysis method is converted into diethylene glycol under the catalysis of alkali metal salt catalyst, and after the reaction is completed, the kettle residue is a mixture of ethylene glycol, diethylene glycol, triethylene glycol and salt, the mixture is purified, and ethylene glycol and diethylene glycol are recovered; the economic benefit is improved, the rectification separation operation is simplified, the equipment investment and the overall energy consumption are reduced, and the utilization rate of ethylene glycol kettle residue is improved.

The invention discloses a modified polylactic acid modified composite material and a card preparation method thereof, and belongs to the field of card preparation. The composite material comprises 55-65% of a base material, 3-5% of a plasticizer, 3-5% of a flexibilizer, 15-25% of a reinforcing agent, 0.5-3% of a coupling agent, 0.03-0.05% of an antioxidant and 0.03-0.05% of an anti-ultraviolet agent. The base material is poly (L-lactic acid), poly (D-lactic acid) or a polylactic acid mixture; the plasticizer is tributyl citrate and triethylene glycol dicaprylate; the flexibilizer is MBS resin; the reinforcing agent is glass fiber and talcum powder filler; the coupling agent is a silane coupling agent. When the card is prepared, the composite material and the adhesive are put into a high-speed mixer at 110-130 DEG C for high-speed stirring, mixing and melting, and then extrusion is performed. The invention aims to solve the problems of insufficient mechanical properties, insufficient toughness, poor heat resistance, poor weather resistance and poor processability when a card is prepared from PLA, and provides an effective modification formula, a modification process and a card preparation process.

The problem to be solved by the present invention is to provide an electrolyte solution for a lithium metal battery, which can easily improve the durability of the lithium metal battery and can suppress an increase in battery resistance. In order to solve the problem, the present invention provides an electrolyte solution for a lithium metal battery, in which an electrolyte salt contains lithium bis-fluorosulfonyl imide (LiFSI), an organic solvent contains 1, 2-dimethoxyethane (DME), and 1, 1, 2, 2-tetrafluoroethyl-2, 2, 3, 3-tetrafluoropropyl ether (TTE), the electrolyte solution for a lithium metal battery further comprises: a polyethylene glycol compound having an average molecular weight of 200-1200, wherein the electrolyte solution for a lithium metal battery contains 0.015% by mass or more and less than 0.3% by mass of a first compound; and at least one compound selected from the group consisting of diethylene glycol dimethyl ether, triethylene glycol dimethyl ether, and tetraethylene glycol dimethyl ether. The electrolyte solution for a lithium metal battery contains 0.1% by mass or more and less than 1.0% by mass of a second compound.

The invention discloses an electrolyte for improving dynamics of a strong-coordination solvent passivated low-temperature lithium metal battery, and belongs to the technical field of electrolytes. The electrolyte comprises the following components: lithium salt, an organic solvent and an additive, wherein the additive comprises at least two of fluoroethylene carbonate, fluoropropylene carbonate, diethylene glycol dimethyl ether, 1, 1, 2, 2-tetrafluoroethyl 2, 2, 3, 3-tetrafluoropropyl ether, ethylene glycol dimethyl ether, 2, 2, 2-trifluoroethyl ether, methyl trifluoroethyl carbonate and triethylene glycol dimethyl ether. The electrolyte prepared by the invention can keep good conductivity and battery reaction power in a low-temperature environment, has relatively high power and capacity, can ensure rapid and efficient transmission of lithium ions in an electrode solution, accelerates the charging and discharging speed of the battery, shortens the charging time, has good compatibility with positive and negative electrode materials, reduces interface side reactions, and improves the service life of the battery. And the battery has higher energy output under the same volume or weight, and the cruising ability of the battery is effectively improved.

The invention provides a preparation method of a eutectic solvent for absorbing carbon dioxide and the eutectic solvent. The preparation method of the eutectic solvent for absorbing carbon dioxide comprises the following steps: respectively drying piperazine and tetraethylene glycol to obtain pretreated piperazine and pretreated tetraethylene glycol; the pretreated piperazine and the pretreated tetraethylene glycol are mixed according to the molar ratio of 1: 1-1: 5, and a mixed solution is obtained; continuously introducing nitrogen into the mixed solution for a first specified duration to establish a nitrogen protective atmosphere in the mixed solution; and placing the mixed solution in a sealed reaction bottle, heating and stirring for 2-3 hours at 70-80 DEG C, and then naturally cooling to room temperature to obtain the transparent eutectic solvent. According to the preparation method of the eutectic solvent for absorbing carbon dioxide and the eutectic solvent provided by the invention, the prepared eutectic solvent not only can realize efficient and rapid CO2 absorption, but also is simple in preparation process.

The invention discloses a photomagnetic response type deep eutectic solvent for absorbing acrylonitrile and a preparation method thereof, the photomagnetic response type deep eutectic solvent comprises a hydrogen bond donor and a hydrogen bond acceptor, the hydrogen bond donor is one of triethylene glycol monobutyl ether (TGBE), N-methyl pyrrolidone (NMP), triethylene glycol (TEG) and triethanolamine (TEOA); the hydrogen bond acceptor is one of tetraethylene glycol dimethyl ether (TGDE) and sulfolane (SUL). The ether bond is used as a hydrogen bond acceptor region, the hydroxyl is used as a hydrogen bond donor region, a negative electricity region of the ether bond and a positive electricity region of acrylonitrile form a hydrogen bond, a wide van der Waals force is formed between a non-polar region of TGBE and acrylonitrile, and the whole absorption efficiency is synergistically improved with the hydrogen bond effect of TGDE. In addition, the fluidity of the solvent is remarkably improved due to the low viscosity of the ethers, and mass transfer limitation caused by high viscosity is avoided, so that the ethers have excellent performance in a continuous absorption tower.

The invention belongs to the technical field of organic ultrathin nanomaterials, and particularly relates to a photoresponse type polymer ultrathin nanosheet as well as a preparation method and application thereof. The preparation method comprises the following steps: (1) adding dicyclohexylcarbodiimide, N-hydroxysuccinimide, N, N-diisopropylethylamine and 4-carboxyl phenylboronic acid pinacol ester into a solvent, and reacting to obtain an intermediate product; (2) carrying out heating reaction on the intermediate product, triethylene glycol and a catalyst to obtain a phenylboronic acid pinacol ester derivative; (3) adding 4, 4-dibromo azobenzene, a phenylboronic acid pinacol ester derivative, a palladium catalyst and potassium carbonate into a solvent for reaction to obtain an amphiphilic alternating copolymer; and (4) dispersing the amphiphilic alternating copolymer in a solvent for self-assembly to obtain the amphiphilic alternating copolymer. According to the invention, a photoresponse group azobenzene structure is introduced into a polymer main chain, so that the ultrathin organic material is endowed with a unique photoresponse characteristic; the method is simple and easy to implement, good in repeatability and high in stability.