815 results about "Diethylene glycol" patented technology

The invention discloses preparation of a high-uniformity cerium oxide abrasive material and application of the high-uniformity cerium oxide abrasive material in a chemical mechanical polishing solution. According to a method, cerium nitrate or cerium oxalate is used as a cerium source, a cationic or nonionic surfactant is used as a structure-directing agent, and the high-uniformity cerium oxide abrasive material is prepared in a mixed solvent system formed by water and isopropanol or water and diethylene glycol according to a specific volume ratio. The preparation method comprises the following steps: regulating the particle size and the morphology structure through a solvothermal reaction, carrying out cleaning, drying and high-temperature calcination treatment on a reaction product to obtain sphere-like cerium oxide nano-particles with high particle size concentration ratio, moderate surface roughness and good dispersity, adding cerium oxide powder into deionized water, and carrying out ultrasonic dispersion to obtain the spherical cerium oxide nano-particles. And sequentially adding a dispersing agent and amino acid while stirring, uniformly stirring, fixing the volume, and adding a pH regulator to enable the solution to be weakly acidic, thereby obtaining the chemical mechanical polishing solution. The cerium oxide submicron powder which is different in surface appearance, particle size and distribution uniformity is prepared by adjusting the solvent ratio and other reaction conditions.

The invention belongs to the technical field of polyurethane, and particularly relates to a low-swelling-rate hydrophilic polyurethane sponge composite material as well as a preparation method and application thereof. The low-swelling-rate hydrophilic polyurethane sponge composite material is prepared from a component A and a component B according to the mass ratio of 100: (50-55), and the component A comprises the following raw materials: a foaming agent, wollastonite powder, an antibacterial agent, emulsifying wax and a polyether type cross-linking agent; the component B comprises polyether ester polyol and toluene diisocynate; the polyether type cross-linking agent is prepared by taking triethanolamine as an initiator and carrying out ring-opening polymerization reaction with EO; the polyether ester polyol is prepared by taking polyethylene glycol, diethylene glycol, trimethylolpropane and adipic acid as raw materials through esterification reaction. The hydrophilic polyurethane sponge prepared from the composite material is good in hydrophilicity, high in aperture ratio, fine and smooth in foam hole, low in swelling ratio and excellent in mechanical property.

The invention discloses an actinide purification method and device, and belongs to the technical field of medical radioactive isotope separation and purification. The method comprises the following steps: passing a thorium target solution containing actinide through a cation exchange column, and leaching with inorganic acid to obtain a first effluent containing Ac < 3 + >; enabling the first effluent containing the Ac < 3 + > to pass through a TK221 resin extraction column to obtain a second effluent containing the Ac < 3 + >; the second effluent containing Ac3 + passes through a TRU resin extraction column, and actinide is obtained. The TK221 resin also contains phosphine oxide and a small amount of long alkyl chain alcohol on the basis of diglycolamide, and shows better performance on purification of Ac < 3 + >. Meanwhile, the elution acidity in the TRU resin separation process is properly improved, and the outflow speed of Ac, La and Ce can be delayed, so that the effect of separating Ac from La and Ce is achieved, and the yield of 225Ac is improved while the concentration of metal impurities is reduced.

The invention discloses a preparation method of a large-area and distance-adjustable gold nanoparticle single-layer superlattice film and a product and application thereof, and belongs to the technical field of nanomaterials, the method comprises the following steps: modifying the surfaces of gold nanoparticles by using sulfydryl polystyrene and 1, 8-octyldithiol to obtain double-ligand co-modified gold nanoparticles; an interface assembly strategy is adopted to enable the double-ligand co-modified gold nanoparticles to form a film at the interface of toluene and diethylene glycol, and after toluene volatilizes, the large-area gold nano single-layer superlattice film with the adjustable distance is obtained. According to the method disclosed by the invention, by accurately regulating and controlling double-ligand modification on the surfaces of the gold nanoparticles and optimizing interaction among the particles in the assembly process, accurate regulation and control of the particle spacing of the gold nanoparticle single-layer superlattice film from 1nm to 8nm are realized. The electromagnetic field intensity can be obviously enhanced by accurately regulating and controlling the particle gaps to the sub-nanometer scale, so that the material becomes an ideal SERS substrate, and possibility is provided for developing a metamaterial with a high optical index.

The invention discloses a refining device and method for a polymerization product and application. The refining device comprises an aldehyde removal tower, a dehydration tower, a water separation tank, a light component removal tower, a byproduct tower and a product tower. According to the present invention, the reaction product obtained through the ethylene glycol dehydration condensation reaction contains water, acetaldehyde, diethylene glycol, 1, 4-dioxane, 2-methyldioxocyclopentane and other components, and has characteristics of complex components and coexistence of multiple azeotropic pairs, and the invention provides the sequential rectification method by introducing the azeotropic breaking component according to the composition, therefore, a diethylene glycol product with high purity and byproducts of acetaldehyde and 1, 4-dioxane are separated, the process is continuous and easy to operate, and the method has industrial feasibility.

The invention relates to the technical field of chemical etching, and provides an aluminum / molybdenum and molybdenum / aluminum / molybdenum etching solution and a preparation method and application thereof. The etching solution provided by the invention comprises 55-65% of phosphoric acid, 4-6% of nitric acid, 15-27% of acetic acid, 1-5% of an additive and 3-20% of water, the additive is prepared from one or more of polyethylene glycol, phosphotriester, sorbitan fatty acid ester, acetic ester, diethylene glycol monobutyl ether, 3-methoxy propionate and ammonium hydrogen phosphate. The etching liquid provided by the invention can simultaneously etch an aluminum / molybdenum composite metal layer and a molybdenum / aluminum / molybdenum composite metal layer of a display panel, and has the advantages of good compatibility, wide application range, high etching yield, good metal line morphology of an etched substrate, CD-Loss and a Tapper angle within a specification requirement range, and no drilling and etching, chamfering and other defects.

The invention relates to a process method for separating out-of-service photovoltaic modules, and belongs to the field of organic chemical industry and the field of efficient recycling of secondary resources. The method comprises the following steps: placing the retired photovoltaic module and an organic solvent containing diethylene glycol monobutyl ether in a dynamic fluid circulation system for layering treatment; the dynamic fluid circulation system controls the organic solvent to circularly flow on the surface of the decommissioned photovoltaic module to complete layering of the decommissioned photovoltaic module, and waste liquid and solids are obtained through solid-liquid separation; the solid object contains glass, a crystalline silicon battery piece and a back plate. According to the method, an appropriate solvent is selected and a flow field is optimized, so that efficient layering of an EVA packaging layer and stripping of a photovoltaic module are realized, and complete recovery of glass, a crystalline silicon battery piece and a back plate is ensured.

The invention provides a cold-resistant and salt-resistant concrete admixture as well as a preparation method and application thereof, and belongs to the technical field of buildings and civil engineering. The concrete admixture comprises a water reducing agent, an anti-freezing agent, calcium carbonate, polyvinyl alcohol, modified nano montmorillonite and a coupling agent, wherein the anti-freezing agent is diethylene glycol butyl ether acetate, hexaethyl phosphoramidite and copper 2-ethylhexanoate. By compounding the components, the compactness of the concrete is effectively improved, so that the concrete provided by the invention has better cold resistance, freezing resistance, impermeability and salt corrosion resistance, and the strength of the concrete can be improved.

The invention relates to the technical field of stripping liquids, and discloses a water-based photoresist stripping liquid for the AMOLED (Active Matrix / Organic Light Emitting Diode) field, which comprises the following components in percentage by mass: 15-20% of 2, 2-dimethylolpropionic acid, 25-30% of diethylene glycol monobutyl ether, 8-10% of diethylene glycol monomethyl ether, 5-8% of diethanol amine, 1.5-3% of a metal protective agent, 0.5-1% of a surfactant and the balance of pure water. According to the stripping liquid, raw materials including 2, 2-dimethylolpropionic acid, diethylene glycol monomethyl ether and diethylene glycol monobutyl ether are subjected to double-tower distillation, metal ions are reduced to 100 ppt, the pollution possibility is eliminated, and metal impurities and granularity in the stripping liquid production process are controlled. According to the invention, the proper metal protective agent and surfactant are adopted, so that the metal silver is protected in the stripping process, the surface tension is reduced, the permeability of the solution is improved, and the problem of photoresist residue is solved.

The present invention relates to the technical field of plastic recycling, and disclosed are a method for preparing a regenerated resin from PET recyclate and a use thereof. The method comprises the following steps: mixing PET recyclate, a polyol, and a catalyst; carrying out elevated temperature reaction; after cooling, adding a polybasic acid or a polybasic acid anhydride for reaction; and after the reaction is finished, cooling to obtain a regenerated resin. The polyol is selected from at least one of diethylene glycol, tripropylene glycol, and polyethylene glycol; the average functionality of the polybasic acid is greater than 2; and the catalyst is selected from at least two of zinc acetate, manganese acetate, and tetrabutyl titanate. According to the present invention, the regenerated resin is applied to the preparation of water-based ink, so that the water-based ink achieves the same printing performance as acrylic resin ink. In the method of the present invention, no waste is generated during polymerization, achieving a 100% recycling rate for waste plastic. Fossil raw materials are saved, and PET recyclate is also fully utilized, achieving the objective of turning waste into wealth.

The invention discloses an ether polymerization inhibitor special for a butadiene extraction system and a preparation method of the ether polymerization inhibitor. The ether polymerization inhibitor comprises the following raw materials: a polymerization inhibitor intermediate, a solvent and a dispersing agent, the production process comprises the following steps: preparing a polymerization inhibitor intermediate, preparing a solvent, compounding, feeding and mixing, filtering, removing impurities and detecting. According to the method, firstly, a polymerization inhibitor 701 and diethylene glycol normal pressure etherification process is adopted, and beta-hydroxyethyl methyl ether is introduced to seal a terminal group, so that the power consumption is reduced, the generation of byproducts is inhibited, the solubility of an intermediate acetonitrile is improved to be greater than or equal to 30g / L, and the anti-interference performance is greatly enhanced; the solvent doped with a small amount of silane modified nano diatomite is prepared, impurities can be adsorbed, metal ions can be chelated, the dispersing agent can be assisted to be evenly distributed, the problems that a pure water solvent is single in function and the dispersing agent is prone to agglomeration are solved, and the polymerization inhibition efficiency and the stability of an extraction system are guaranteed.

The invention relates to the field of polyester, and discloses a method for continuously producing 1, 4-cyclohexanedimethanol by taking waste polyester as a raw material. Comprising the following steps: 1) mixing waste polyester with ethylene glycol, and performing alcoholysis under the action of an alcoholysis catalyst to obtain alcoholysis liquid containing diethylene glycol terephthalate; 2) performing primary hydrogenation on the alcoholysis solution under the catalysis of a hydrogenation catalyst A to obtain a reaction solution containing 1, 4-cyclohexane dioctyl phthalate diglycol ester; 3) performing secondary hydrogenation on the reaction liquid under the catalysis of a hydrogenation catalyst B to obtain a reaction liquid containing 1, 4-cyclohexanedimethanol; and 4) carrying out gas-liquid separation and rectification on the reaction liquid to obtain ethylene glycol and 1, 4-cyclohexanedimethanol. According to the method, the CHDM is produced by taking the waste polyester as the raw material, the method is simple in production process flow, and continuous production can be realized; through optimization of the catalyst and the process, high PET conversion rate, high CHDM selectivity, high CHDM yield and low production cost can be realized under relatively mild reaction conditions.

The invention relates to the field of chemical synthesis, in particular to a production process of allyl diethylene glycol dicarbonate, which comprises the following steps: by taking allyl alcohol and dimethyl carbonate as raw materials, carrying out transesterification under the action of a core-shell catalyst to generate dipropylene carbonate; carrying out solid-liquid separation, carrying out reduced pressure distillation to recover methanol and dimethyl carbonate, and then carrying out second-step ester exchange reaction with diethylene glycol under the action of the same catalyst to generate allyl diethylene glycol dicarbonate; and finally, performing multi-stage reduced pressure distillation purification to obtain a high-purity product. According to the core-shell type catalyst, an MCM-41 molecular sieve is used as a carrier, an inner core is formed after amino modification and zirconium ion coordination, then an interface layer and a phenyl modified silicon dioxide shell are used for packaging, and the core-shell type catalyst has high activity, high selectivity and excellent structural stability. The method has the advantages of mild process conditions, recyclable catalyst, high product yield and excellent purity, and is suitable for industrial production.

A polymerization raw material obtained by the depolymerization of waste polyester is disclosed. The polymerization raw material contains recycled bis(2-hydroxyethyl) terephthalate in which the contents of acetate-based ester compounds and diethylene glycol ester compounds are adjusted to specific levels. The polymerization raw material is excellent in purity and quality, and free from the problem that thermal resistance characteristics deteriorate in the polymerization of a polymer from the recycled monomer.

The invention relates to the field of protective films, and discloses a liquid crystal display light guide plate TPE protective film and a preparation method thereof, the protective film comprises modified SBS, polypropylene, modified nano calcium carbonate, a lubricant and a plasticizer; the modified nano calcium carbonate is prepared by grafting a modified additive on the surface of nano calcium carbonate through chemical reaction and then coordinating with copper ions; the modified additive is prepared by preparing a chlorinated silicon-containing intermediate by using dichlorodiphenyl silane, diethylene glycol and cyanuric chloride as raw materials and then grafting a component I and 3-aminopropyltrimethoxysilane; the component I is prepared from 5-chloromethylthiazole and p-phenylenediamine through a reaction, and the modified SBS is prepared from epoxidized SBS and nano titanium dioxide subjected to amination modification by 3-aminopropyltriethoxysilane through a ring-opening reaction. The film material is endowed with excellent tensile strength, aging resistance and antibacterial and flame-retardant effects.

The present invention discloses a kind of ultrafine slag powder grinding aid and preparation method thereof, belong to the technical field of grinding admixture. The grinding aid of the present invention is prepared by including the following raw materials in parts by weight: 20-40 parts of small molecule polyether polyols, 10-20 parts of ethylene glycol and diethylene glycol mixed solution, 5-10 parts of water glass, 0.1-0.5 parts of sodium hexadecylsulfonate, 0.1-0.5 parts of defoamer and 20-40 parts of water. The present invention adopts ethylene oxide and glycolic acid to synthesize small molecule polyether polyol oligomers, which can adapt to slag of different particle sizes, achieve good adsorption and dispersion, effectively solve the agglomeration problem of slag differential during ultrafine grinding, and have a good grinding aid effect on slag. The obtained grinding aid can effectively improve the efficiency of ultrafine grinding of slag powder, shorten the time of ultrafine grinding, and increase the output by 20% per hour.

The invention belongs to the technical field of textile dyeing and finishing, and particularly relates to a long-acting hydrophilic, soft, fluffy and washable silicone oil composition as well as a preparation method and application thereof. The silicone oil composition is prepared from the following raw materials in parts by mass: 20 parts of modified silicone oil, 0.5 to 2.5 parts of anionic surfactant, 0.5 to 2 parts of nonionic surfactant, 0.1 to 1 part of polyhexamethylene biguanide hydrochloride, 0.2 to 0.5 part of glacial acetic acid and 76 to 79 parts of water, the modified silicone oil is prepared from the following raw materials: octamethylcyclotetrasiloxane, tetramethylethylenediamine, secondary aminated polyether amine, allyl epoxy polyether, polyether amine, allyl glycidyl ether, isopropanol, diethylene glycol butyl ether, an end-capping reagent and a catalyst. The silicone oil composition provided by the invention can endow a fabric with a long-acting hydrophilic effect, excellent hand feeling, low yellowing and washability; and the dye has excellent stability, is safe and stable to use, and does not influence the colored light of the dyed fabric.

The invention discloses a liquid organic hydrogen storage material and application thereof, and belongs to the technical field of liquid hydrogen storage. The liquid organic hydrogen storage material is an organic compound with a diol structure, the organic compound with the diol structure is one of 1, 5-pentanediol, diethylene glycol and diethanol amine, the liquid organic hydrogen storage material is low in melting point, high in boiling point, safe and low in toxicity, hydrogen is generated through liquid-phase dehydrogenation lactonization, the available hydrogen content is about 3.8%, and the 1, 5-pentanediol structure is one of 1, 5-pentanediol, diethylene glycol and diethanol amine. The 1, 5-pentanediol can be prepared from a biomass platform compound furfural through hydrogenation and hydrogenolysis, and the source is rich; the diethylene glycol and the diethanol ammonia are bulk chemical products, easy to obtain and low in price, and the liquid organic hydrogen storage material has high industrial application value.

The invention relates to the field of solid electrolyte preparation, and particularly discloses a solid electrolyte preparation method, a solid electrolyte and a battery, and the solid electrolyte preparation method comprises the following steps: step 1, synthesis of a pyridyl covalent organic framework (PCOF): dissolving 1, 3, 5-triformyl benzene and 2, 6-diaminopyridine pyridyl amine monomers in a mixed solvent of m-trimethylbenzene and 1, 4-dioxane, and stirring to obtain a solid electrolyte solution; the preparation method comprises the following steps: adding an acetic acid catalyst under the protection of argon, reacting at 100-130 DEG C for 48-96 hours, and then carrying out centrifugal separation, cleaning, neutralization, secondary cleaning and drying to obtain PCOF powder; by introducing the flexible diethylene glycol (DEG) group with relatively high polarity, the interface contact between the DEG-PMCOF and the lithium metal electrode is tighter, the interface impedance is effectively reduced, the overall performance of the battery is improved, meanwhile, the overall toughness of the material is remarkably enhanced through the flexible characteristic of the DEG, the problems of crack generation and layering in the cycle process of the battery are reduced, and the service life of the battery is prolonged. The mechanical property and the long-term stability of the material are improved.

The invention relates to the technical field of paint removers, and particularly discloses a paint removal composition, a paint stain cleaning agent and application of the paint stain cleaning agent. The paint stain cleaning agent provided by the invention is prepared from the following components in parts by weight: 30 to 40 parts of EDTA-2Na (Ethylene Diamine Tetraacetic Acid), 200 to 300 parts of caustic soda flakes, 140 to 170 parts of sodium alcohol ether sulphate, 160 to 180 parts of sodium xylene sulfonate, 400 to 450 parts of monoethanolamine, 1100 to 1300 parts of diethylene glycol monobutyl ether, 250 to 300 parts of limonene, 40 to 100 parts of saponin extract and 3700 to 3900 parts of water, the saponin extract is selected from one or more of soapnut saponin, fenugreek saponin and aescin; the invention further provides a paint stain cleaning agent prepared from the paint removal composition and application of the paint stain cleaning agent to cleaning of protective clothing. The paint stain cleaning agent provided by the invention can quickly permeate into paint and the contact surface of the paint and protective clothing, so that the paint on the surface of the protective clothing is dissolved and effectively stripped.

The invention discloses a method for preparing calcium hydroxide with a high specific surface area by digesting calcium oxide, and relates to the technical field of preparation of calcium hydroxide with a high specific surface area. The method is characterized in that diethylene glycol / triethanolamine / magnesium chloride is adopted as a compound digestion aid through two processes of wet digestion and dry digestion; and calcium hydroxide with high specific surface area can be controllably prepared. The specific surface area of the calcium hydroxide prepared through wet digestion can reach 70 m < 2 >. G <-1 > or above, the specific surface area of the calcium hydroxide prepared through dry digestion is 45 m < 2 >. G <-1 > or above, the reaction activity of the calcium hydroxide is effectively improved, and the novel controllable method for preparing the calcium hydroxide with the high specific surface area is provided.

The invention discloses a catalyst for catalyzing diethylene glycol to prepare N-methylmorpholine and a preparation method of the catalyst, and belongs to the field of catalysts. The catalyst for catalyzing diethylene glycol to prepare N-methylmorpholine is composed of uniformly distributed Ni and Cu particles and a NiCuXY oxide solid solution carrier, and the catalyst is prepared by roasting and reducing a NiCuXY mixed hydroxide precursor in a hydrogen atmosphere; wherein X and Y are selected from any one of Al, Zr, Ce, Cr, Ti, Mo and Mg; and X and Y are different. According to the invention, the interface synergistic effect of a NiCu metal active center and a NiCuXY solid solution carrier is utilized; the catalyst disclosed by the invention is simple in preparation method, relatively low in cost, mild in reaction condition, low in energy consumption and beneficial to being applied to an industrial production process.

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 method, according to one embodiment, depolymerizes waste polyester by means of a multi-step reaction, wherein a latter reaction is carried out at a low temperature, and ion exchange, etc., is further carried out, thereby enabling the provision of high-purity and high-quality recycled bis(2-hydroxyethyl) terephthalate having reduced generation of diethylene glycol-derived impurities and oligomers.

The invention belongs to the technical field of antibacterial polyurethane, and particularly relates to a preparation method of antibacterial polyurethane foam. The preparation method comprises the following steps: (1) adding 0.5-1 part by weight of water, 1-3 parts by weight of a catalyst, 1-6 parts by weight of a foam stabilizer and 0.5-1 part by weight of an inorganic antibacterial filler into 100 parts by weight of antibacterial polyether under the condition of 25-35 DEG C to obtain a combined material; (2) adding 100-110 parts by weight of polyisocyanate into the combined material obtained in the step (1) under the condition of 25-35 DEG C, stirring, foaming and curing to obtain polyurethane foam; the number-average molecular weight of the antibacterial polyether is 550-650, guanidine hydrochloride, cane sugar, diethylene glycol and ethidene diamine are used as initiators and react with epoxypropane to prepare the antibacterial polyether, and the mass fraction of epoxypropane in the antibacterial polyether is 75-80%. The foam prepared by the method is high in strength and high in antibacterial property.

The invention provides polyurethane wet resin for soft embossing-resistant clothing leather as well as a preparation method and application of the polyurethane wet resin. The preparation raw materials of the polyurethane wet resin comprise the following components in parts by weight: 0.002-0.004 part of inorganic acid; 165 to 251 parts of polyester polyol; 42 to 64 parts of isocyanate; 7-11 parts of small molecular alcohol; 24 to 37 parts of an auxiliary agent; 560 to 840 parts of a solvent; the polyester polyol simultaneously comprises polyester polyol of an adipic acid-ethylene glycol-1, 4-butanediol system, polyester polyol of an adipic acid-phthalic acid-ethylene glycol-1, 4-butanediol system, polyester polyol of an adipic acid-phthalic acid-ethylene glycol-1, 4- The polyester polyol is prepared from polyester polyol of a 1, 4-butanediol system, polyester polyol of an adipic acid-diethylene glycol-ethylene glycol system, polyester polyol of an adipic acid-diethylene glycol system and polyester polyol of an adipic acid-ethylene glycol system. The polyurethane wet resin disclosed by the invention has the characteristics of good finger-pressing resilience, thick and soft hand feeling, good black color developing property and the like, and the prepared synthetic leather keeps good high-temperature embossing resilience and combines the thick and soft hand feeling, so that the additional value of the product is obviously improved.

A polyester-based woven hook-and-loop fastener including: a woven-fabric and engaging elements, in which the woven-fabric in which a polyethylene terephthalate-based multifilament yarn is a warp yarn and a polyester-based heat-fusible multifilament yarn is a weft yarn is a woven base fabric, a yarn for the engaging elements made of at least one kind selected from the group consisting of a polyethylene terephthalate-based monofilament yarn and a polyester-based multifilament yarn, is woven in parallel to the warp yarn into the woven base fabric, the engaging elements that are formed of the yarn for the engaging elements, that are made of at least one kind selected from the group consisting of a large number of hook shapes and loop shapes, and that rise up from a front face of the woven base fabric, exist on the front face of the woven base fabric, bases of the engaging elements are fixed to the woven base fabric by a melt-solidified material of a heat-fusible component of the the polyester-based heat-fusible multifilament yarn, and the polyethylene terephthalate-based multifilament yarn is made of a copolymerized polyethylene terephthalate containing, as copolymerization components, 1.0 to 2.0 mol % of isophthalic acid with respect to a total amount of dicarboxylic acids and 2.0 to 3.5 mol % of diethylene glycol with respect to a total amount of diols.

The invention relates to the field of chemical synthesis, in particular to a preparation method of chlorinated alkyl polyphosphate, which comprises the following steps: mixing diethylene glycol and gamma-valerolactone, slowly adding phosphorus oxychloride, and reacting at 20-50 DEG C to generate a reaction solution containing an intermediate; adding gamma-valerolactone and an IL (at) MOFs-P catalyst into the reaction solution, slowly adding epoxypropane, and reacting at 130-150 DEG C in a nitrogen atmosphere to generate a target product mixed solution; and recovering gamma-valerolactone through distillation, centrifugally separating the catalyst, regenerating and recycling, and purifying a crude product to obtain a final product. The green solvent gamma-valerolactone is adopted and recycled, the IL-coated MOFs-P catalyst is high in activity and can be recycled, side reactions are reduced by accurately controlling reaction conditions, the product yield reaches 90% or above, the purity exceeds 98%, and the method has the advantages of being green, environmentally friendly, economical and efficient.

The invention discloses a co-extrusion foam board and a preparation method thereof, and relates to the technical field of plastic boards. When the co-extrusion foam board is prepared, firstly, diphenylmethane diisocyanate reacts with polycarbonate diol, hydroxyl-terminated hydrogen-containing silicone oil, diethylene glycol and ethyl alcohol to prepare polyurethane master batches; bamboo powder is subjected to secondary carbonization, iron oxide loading and silane coupling agent modification, and modified magnetic bamboo charcoal powder is prepared; the preparation method comprises the following steps: reacting phosphonitrilic chloride trimer with sodium 2-allyl phenolate and sodium phenolate to prepare a flame-retardant cross-linking agent; the preparation method comprises the following steps: blending polyurethane master batch, modified magnetic bamboo charcoal powder and a flame-retardant cross-linking agent, extruding and foaming by using supercritical carbon dioxide to obtain a foaming core layer, and co-extruding the foaming core layer and a non-foaming surface layer obtained by modifying and extruding polyethylene glycol terephthalate to obtain the co-extruded foaming board. The prepared co-extrusion foam board has good impact strength and bending strength and good flame retardance, heat insulation, sound insulation and electromagnetic shielding performance.

The invention relates to the field of cosmetics, in particular to skin moistening oil containing a water-soluble active matter and a preparation method of the skin moistening oil. The skin moistening oil of the water-soluble active matter is prepared from the following raw materials in parts by mass: 0.1-1 part of a phase A, 3-15 parts of a phase B and 80-100 parts of a phase C, wherein the phase A is a water-soluble component, and the water-soluble component comprises one or more of deionized water, VC ethyl ether and nicotinamide; the phase B is a solvent, and the solvent comprises one or more of ethyoxyl diethylene glycol, 1, 2-pentanediol, isopentanediol and isostearic acid; the phase C is skin moistening oil, and the skin moistening oil comprises caprylic / capric triglyceride. The skin moistening oil product provided by the invention has the advantages of clear and transparent appearance, good fluidity, excellent stability, no need of adding a surfactant or a solubilizer, mildness, no irritation, simple process, controllable cost, good practical value and good application prospect.