16 results about "Diethylene glycol diethyl ether" patented technology

The invention provides a method for preparing adamantane, and relates to the technical field of chemical production. The method comprises the following steps: mixing 1-bromoadamantane, an organic solvent and an aminating agent and heating at 160-250° C. to obtain adamantane; the organic solvent comprises one or more of diethylene glycol dimethyl ether, diethylene glycol diethyl ether, triethylene glycol dimethyl ether and tetraethylene glycol dimethyl ether, and the aminating agent is a mixture of urea and sodium bicarbonate; the method solves the technical problems that the current preparation of adamantane has a large risk, high cost and is difficult to use for industrial production.

The invention discloses odorless ink for a printer, which comprises a coloring agent, a solvent, a surfactant, a thermal insulation agent, a viscosity modifier, an antibacterial agent, a dispersing agent, a thickening agent and a PH modifier, the humectant is diethylene glycol diethyl ether, and the other components comprise, by weight, 72-87% of diethylene glycol diethyl ether, 8-15% of diethylene glycol dimethyl ether, 8-15% of diethylene glycol dimethyl ether, 8-15% of diethylene glycol dimethyl ether, 8-15% of diethylene glycol dimethyl ether, 8-15% of diethylene glycol dimethyl ether, 8-15% of 2-5% of organic pigment and 3-8% of vinyl chloride-vinyl acetate resin. Compared with the prior art, the odorless ink has the advantages that the odorless ink is environment-friendly and economical, so that the using effect of the odorless ink is improved.

Solvent blends useful for the formulation and application of polyamide-imide resins are described. A solvent blend may include a primary solvent and a co-solvent, wherein the primary solvent is provided at a higher concentration than the co-solvent. The primary solvent may include one or more first materials, wherein the first materials include at least one of 1,3- Dimethyl-2-imidazolidinone, N-Cyclohexyl-2-pyrrolidone, or N,N'-Dimethyl propyleneurea. The co-solvent may include one or more second materials different than the one or more first materials, wherein the second materials include at least one of N,N-Diethylacetamide, N,NDimethylpropionamide, gamma-butyrolactone, N-butylpyrrolidinone, N-Methylmorpholine, 2,5,7,10-Tetraoxaundecane, 3-Methoxy-N,N-dimethyl propenamide, Anisole, Cyrene, 1,1,3,3- Tetramethylurea, Diethylene Glycol Diethyl Ether, 1,3-Dimethyl-2-imidazolidinone, NCyclohexyl- 2-pyrrolidone, or N,N'-Dimethyl propyleneurea.

The invention discloses a low-temperature lithium-sulfur battery electrolyte and a lithium-sulfur battery containing the electrolyte, and relates to the technical field of lithium-sulfur batteries. The electrolyte comprises a solvent, a lithium salt and an additive, the solvent is an ether solvent with a chain-shaped or cyclic molecular structure or a composite solvent composed of the ether solvent, preferably one or more of ethylene glycol dimethyl ether, ethylene glycol diethyl ether, 1, 3-dioxolane, diethylene glycol dimethyl ether, diethylene glycol diethyl ether, triethylene glycol dimethyl ether and tetraethylene glycol dimethyl ether; the additive is a borate or borane anion acceptor with an electron-deficient structure. According to the low-temperature lithium-sulfur battery electrolyte provided by the invention, an anion acceptor additive with an electron-deficient structure and electron-rich sulfur have relatively strong interaction, so that the dissolution of lithium polysulfide is promoted, the formation of lithium polysulfide clusters is prevented, and the reaction kinetics of the lithium polysulfide is promoted; and the sulfur utilization rate of the battery under a poor electrolyte condition and a low-temperature condition is improved.

The invention provides 300 DEG C-resistant low-viscosity white ink suitable for handheld equipment, and relates to the technical field of ink materials. The 300 DEG C-resistant low-viscosity white ink applicable to the handheld equipment is prepared from the following materials in parts by weight: 15 to 20 parts of organic silicon resin, 10 to 15 parts of polyester resin, 10 to 12 parts of cross-linking agent, 15 to 20 parts of silicon-aluminum coated rutile type titanium dioxide, 5 to 10 parts of modified nano zinc oxide, 10 to 15 parts of diethylene glycol diethyl ether, 5 to 10 parts of isopropanol, 4 to 6 parts of ethylene glycol monomethyl ether and 5 to 8 parts of functional additive. According to the 300 DEG C-resistant low-viscosity white ink suitable for the handheld equipment, disclosed by the invention, the balance of low viscosity and high temperature resistance is realized by optimizing the components, the proportion and the preparation method of the ink.

The invention discloses a foramsulfuron nano dispersible oil suspending agent and a preparation method thereof, and relates to the technical field of herbicides. The invention relates to a foramsulfuron nano dispersible oil suspending agent which comprises the following components in percentage by weight: 1-5% of foramsulfuron, 20-30% of an emulsifier and the balance of a dispersion medium, the dispersion medium is prepared from methyl oleate and diethylene glycol diethyl ether according to the mass ratio of 1: 1; the emulsifying agent in the foramido-sulfuron nano dispersible oil suspending agent is prepared from one or two of 7200-F and sitosterol formyl arginyl-glycyl-aspartic acid dipotassium salt, and the emulsifying agent is prepared from one or two of 7200-F and sitosterol formyl arginyl-glycyl-aspartic acid dipotassium salt. The foramsulfuron nano dispersible oil suspending agent prepared by the invention is stable in performance, environment-friendly and green, and has excellent characteristics of small granularity, high dispersity and low decomposition rate.

The application discloses a negative-electrode-free sodium battery electrolyte and a preparation method and application thereof, and belongs to the battery field.The negative-electrode-free sodium battery electrolyte comprises the following raw materials in parts by weight: 50-80 parts of a linear ether main solvent; 10-30 parts of 1,3-dioxolane cosolvent; 10-17 parts of an electrolyte sodium salt; and 0.3-2 parts of a pyridine boronic acid additive.The pyridine boronic acid additive is at least one of pyridine-3-boronic acid, pyridine-3-boronic acid neopentyl glycol ester and pyridine-4-boronic acid neopentyl glycol ester.The linear ether main solvent is at least one of ethylene glycol dimethyl ether, diethylene glycol dimethyl ether, tetraethylene glycol dimethyl ether, ethylene glycol diethyl ether and diethylene glycol diethyl ether.The negative-electrode-free sodium battery electrolyte can achieve the effects of good first-effect exertion and long cycle life.

The invention discloses a lithium ion electrolyte and a preparation method thereof, and belongs to the technical field of electrolyte preparation. Comprising a non-aqueous organic solvent, a lithium salt, an additive and modified phosphorus-containing flame-retardant vesicles, the additive comprises 2, 3-dipicolinic acid anhydride, a modified layered inorganic material, modified aramid fiber and diethylene glycol diethyl ether; the modified layered inorganic material is obtained by firstly modifying a layered inorganic material with a lithium material and then modifying with a high-molecular polymer; the modified aramid fiber is obtained by firstly carrying out plasma treatment on aramid fiber and then grafting polypropylene ethyl ester; the modified phosphorus-containing flame-retardant vesicles are obtained by firstly wrapping a flame retardant with poly (N-isopropylacrylamide) and then modifying with an acrylate monomer, the electrolyte is prepared by mixing the components, and the battery prepared from the electrolyte has relatively excellent electric cycle performance at the high temperature of 45 DEG C and 60 DEG C; meanwhile, the flame retardant property is high, even the non-combustible degree can be achieved, and real flame retardance is achieved.

The invention discloses a phase change absorbent for CO2 capture and an application method thereof, and relates to the technical field of carbon capture, utilization and storage. The phase change absorbent comprises diethylaminoethanol, piperazine anhydrous, a physical solvent and water, and the physical solvent is any one of n-butyl alcohol, diethylene glycol dimethyl ether and diethylene glycol diethyl ether. Through the activation effect of the activating agent, the problem of low tertiary amine absorption rate is solved; the problem of high regeneration energy consumption of the absorbent is solved by utilizing the characteristic of low regeneration reaction heat of the tertiary amine product and the characteristics of low sensible heat and low latent heat of the phase change absorbent, and comprehensive optimization of the phase change absorbent on key indexes such as CO2 cycle loading capacity, absorption rate, regeneration energy consumption, degradation resistance and corrosion resistance is realized by virtue of deep synergy of multiple components and multiple functions; the comprehensive performance of the phase change system is far better than that of a traditional phase change system with single amine or homogeneous-phase mixed amine or primary and secondary amine as a main absorption component.

A composition comprises a polymer; diethylene glycol diethyl ether solvent; and a compound of formula (I); (I) (II) wherein: M+ is an alkali or alkaline earth metal cation, preferably Li+; X is Al or B; and R1 in each occurrence is independently a substituent wherein two R1 groups may optionally be linked to form a ring. At least two of the R1 groups, possibly all of the R1 groups, are not linked, or at least two of the R1 groups may be linked to form a group R2 as set out above in formula (II). The composition may include one or more further solvents such as C2-10 alkylene carbonates and / or a di(C1-10) alkyl carbonate, and the polymer may be fluorinated. A gel comprising the composition may be used as an electrolyte in a metal or metal ion battery.

The invention discloses a photonic crystal colloid film based on polyvinylpyrrolidone (PVP) modification and a preparation method of the photonic crystal colloid film. The photonic crystal colloid film is formed by self-assembling silicon dioxide microspheres (SiO2) subjected to PVP surface modification in an elastic colloid with polyethylene glycol phenyl ether acrylate (PEGPEA) and diethylene glycol ethyl ether acrylate (DEGEEA) as main components and performing ultraviolet curing through a photoinitiator 1173. Compared with a traditional photonic crystal thin film, the photonic crystal colloid thin film effectively inhibits angle dependence, and stable characterization of the photonic crystal structural color is achieved. Meanwhile, the film has the characteristics of good flexibility, high sensitivity, environmental friendliness and simple process, shows extremely high production efficiency in large-scale industrial production, and has remarkable technical advantages and application potential.

The invention relates to a liquid crystal aligning agent, a liquid crystal alignment film, and a liquid crystal display element. Provided are a liquid crystal aligning agent, a liquid crystal aligning film, and a liquid crystal display element which are capable of suppressing poor coating of an aligning film and non-uniformity of display of a liquid crystal display element due to the influence of a wiring structure or C / H, and which are capable of reducing viscosity while maintaining a resin component and a molecular weight. A liquid crystal aligning agent containing: at least one polymer selected from the group consisting of polyimide precursors and polyimides that are imides thereof; and a solvent containing a solvent A, a solvent B, and a solvent C. Solvent A: is selected from the group consisting of N-methyl-2-pyrrolidone, N-ethyl-2-pyrrolidone, [gamma]-butyrolactone, and dimethylimidazolinone. The solvent B is dipropylene glycol dimethyl ether. Solvent C: selected from the group consisting of diethylene glycol diethyl ether and diacetone alcohol.

The invention discloses a preparation method and application of rare earth metal, and the preparation method comprises the following steps: 1) providing an electrolyte which is a mixture of a polar aprotic solvent and a lithium salt; wherein the polar aprotic solvent is selected from at least one of ethylene glycol dimethyl ether, ethylene glycol diethyl ether, ethylene glycol dibutyl ether, diethylene glycol dimethyl ether, diethylene glycol diethyl ether, triethylene glycol dimethyl ether and N-methyl pyrrolidone; 2) mixing a rare earth compound with the electrolyte in the step 1) to obtain an electrolyte containing the rare earth compound; (3) electrolyzing the electrolyte containing the rare earth compound under constant potential; and (4) after electrolysis is finished, the cathode piece is taken out, residual electrolyte on the surface of the cathode piece is removed, and rare earth metal on the surface of the cathode piece is collected. According to the preparation method, rare earth metal can be obtained, and no other additives are added in the electrolysis process.

The invention discloses a high-solubility lithium-sulfur battery electrolyte and a lithium-sulfur battery containing the electrolyte, and relates to the technical field of high-solubility lithium-sulfur batteries. The electrolyte comprises a solvent and a lithium salt, the solvent comprises a main solvent I and a main solvent II; the main solvent I is composed of one or more ether solvents, and the main solvent II is composed of one or more phosphamide solvents; the main solvent I is an ether solvent with a chain-shaped or annular molecular structure or a composite solvent composed of the ether solvent, preferably one or more of ethylene glycol dimethyl ether, ethylene glycol diethyl ether, 1, 3-dioxolane, diethylene glycol dimethyl ether, diethylene glycol diethyl ether, triethylene glycol dimethyl ether and tetraethylene glycol dimethyl ether; according to the high-solubility lithium-sulfur battery electrolyte, a high-DN phosphamide solvent promotes dissolution of lithium polysulfide and stabilizes free radicals and reaction kinetics, the sulfur utilization rate of the battery in the high-load poor electrolyte is increased, a core-shell structure is formed by phosphamide and an ether solvent through intermolecular hydrogen bonds, and the stability of lithium metal is improved.

A composition comprising a polymer; diethylene glycol diethyl ether; and a compound of formula (I);wherein: M+ is an alkali metal cation; X is Al or B; and R1 in each occurrence is independently a substituent wherein two R1 groups may optionally be linked to form a ring. A gel comprising the composition may be used as an electrolyte in a metal or metal ion battery.

The invention discloses a fluorescent shielding glue solution as well as a preparation method and application thereof, relates to the technical field of papermaking, and aims to solve the technical problem that existing synthetic fiber paper cannot meet application requirements. The fluorescent shielding glue solution comprises the following components: a glue solution and a mixture of diethylene glycol diethyl ether and benzotriazole. The fluorescent shielding glue solution is different from other granular chemical coatings and is hydrophilic, so that the air permeability, the surface strength and the watermark anti-counterfeiting effect under light transmission of synthetic fiber paper are not affected after surface sizing treatment is performed on the synthetic fiber paper, and the anti-counterfeiting effect of the synthetic fiber paper is improved while the requirement of the special paper for no fluorescent reaction is met. The papermaking performance and the anti-counterfeiting performance of the paper are not influenced, so that the application requirements are better met.