223 results about "Diethylene glycol" patented technology

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 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.

The invention relates to the technical field of organic silicon catalysis, and discloses a hydrosilylation reaction catalyst and a preparation method thereof, the catalyst is prepared from a platinum complex catalyst solution, maleic anhydride, triphenyl borate, tetraethoxysilane, propylene carbonate and diethylene glycol dibutyl ether; the preparation method comprises the steps of solvent water removal, electronic relay adduct preassembly, active metal introduction, thermal induction aging and the like. An electron-deficient coordination center is constructed through a step-by-step process, the electron cloud density of the platinum center is reduced by utilizing the Lewis acid characteristic of triphenyl borate, and the solvent cage effect of propylene carbonate is matched, so that the high-temperature tolerance of the catalyst is improved, and the generation of platinum black is effectively inhibited; meanwhile, the solubilizing and bridging effects of diethylene glycol dibutyl ether are utilized, the compatibility problem of a high-polarity component and a non-polar silicone oil matrix is solved, and the obtained catalyst has high activity, high regioselectivity and excellent long-term storage stability.

The invention relates to the technical field of coatings, in particular to an epoxy resin-based water-based corrosion-resistant and weather-resistant coating and a preparation method of the epoxy resin-based water-based corrosion-resistant and weather-resistant coating. A composite modified inorganic filler composed of siloxane modified epoxy resin, modified polysiloxane, rare earth cerium modified graphene, silane modified calcium carbonate oligomer and surfactant-silane composite modified kaolin is compounded; a composite modifier consisting of propylene glycol diacetate, dipropylene glycol butyl ether and diethylene glycol butyl ether and an isopropanol / water mixed solvent are matched, so that the contradiction between the water resistance and the structural stability of the existing water-based paint is effectively solved, and the anticorrosion durability, the weather resistance, the mechanical strength, the adhesive force and the storage stability of the coating are remarkably improved; good water-based dispersity and construction applicability are kept, and the coating can be suitable for long-acting corrosion protection of base materials such as metal components, industrial equipment and building outer walls and has a wide application prospect.

The application discloses a preparation method of a low-TCR low-cost ceramic heating tube, and comprises the following steps: (1) preparing an organic carrier: 60 parts by weight of terpineol, 20 parts by weight of ethyl cellulose, 10 parts by weight of a binder and 10 parts by weight of diethylene glycol acetate are placed into a magnetic stirrer and uniformly dissolved and mixed; (2) weighing metal powder: Mo: 50-70 parts by weight; Re: 20-30 parts by weight; Mn: 0-5 parts by weight; Cr: 10-15 parts by weight; by adopting Mo, Re, Mn and Cr in a specific ratio as the metal powder, the traditional mode of adopting metal ruthenium powder or a mixture of metal ruthenium powder and other common metal powder is replaced, the prices of Mo, Re, Mn and Cr are low, so that the preparation cost of the ceramic heating tube is effectively reduced, the purpose of low TCR is achieved, and the scale production is facilitated; meanwhile, the ceramic heating tube prepared by adopting the application has higher overall bending strength, and can better meet the use requirement.

This invention discloses a demulsifier for polymer flooding crude oil produced fluids, its preparation method, and its application, belonging to the field of chemical additives for petrochemicals. The technical solution includes a main agent, an auxiliary agent, a penetrant, and water; the main agent is a polyene-polyamine block polyether, the auxiliary agent is a triethanolamine block polyether quaternary ammonium salt, and the penetrant is selected from at least one of methanol, ethanol, ethylene glycol, and diethylene glycol butyl ether; in the demulsifier, the ratio of the main agent to the auxiliary agent is 4-9:1, the amount of penetrant is 30% of the total amount of the main agent and auxiliary agent, and the amount of water is 70% of the total amount of the main agent and auxiliary agent. This invention, applied to demulsification of polymer flooding crude oil produced fluids, features high demulsification efficiency and rapid demulsification effect.

The present application belongs to the technical field of cleaning products, and particularly relates to a high-temperature oil stain removing stove cleaner as well as a preparation method and application thereof. The high-temperature oil stain removing stove cleaner provided by the present application comprises the following components and mass fractions: 11-33 parts of an alkaline additive, 1-2 parts of hydroxyethylidene diphosphonic acid, 3-6 parts of a non-ionic surfactant, 4-8 parts of a solvent, 1-3 parts of a solubilizer, 1-3 parts of sodium xylene sulfonate, and 45-79 parts of water; the solvent comprises ethylene glycol monobutyl ether and diethylene glycol ethyl ether. The high-temperature oil stain removing stove cleaner provided by the present application has the advantages of simple cleaning method, high-temperature oil removing effect, good stain removing and oil scale removing effect on commercial kitchen utensils, high safety, no corrosion to metal, simple raw material composition, and no need to add a defoaming agent.

The application belongs to the technical field of ink, and discloses a UV touch ink and a preparation method thereof.The UV touch ink comprises a UV modified acrylate, an acetylacetate ethyl ester-containing acrylic resin, an active monomer, an organic wax, a photoinitiator and a solvent; the active monomer is selected from at least one of dipropylene glycol diacrylate, diethylene glycol phthalate diacrylate, neopentyl glycol diacrylate and hexanediol diacrylate. The UV modified acrylate, the acetylacetate ethyl ester-containing acrylic resin, the active monomer and the organic wax are used as main components, and the selection of the active monomer enables the prepared UV touch ink to have excellent skin feeling and velvet feeling effects, and excellent adhesion, light resistance, weather resistance, alcohol resistance and solvent resistance. Meanwhile, the UV touch ink can simplify the curing process, and only needs to be dried by UV after printing, has high curing efficiency, and does not need to be dried by hot air and UV.

This invention belongs to the field of printing consumables technology, specifically relating to a thermally foamed anti-counterfeiting inkjet ink. The thermally foamed anti-counterfeiting inkjet ink comprises an organic fluorescent dye, a solvent, a humectant, a resin, and additives; the solvent includes at least one selected from ethanol, n-propanol, isopropanol, n-butanol, and dimethyl acetate; the humectant includes at least one selected from ethylene glycol, diethylene glycol, and glycerin; and the resin includes rosin resin or modified rosin resin. The thermally foamed anti-counterfeiting inkjet ink has advantages such as extremely low viscosity and surface tension, and good continuous printing performance.

The application provides a single-component polyurethane primer, and raw materials for preparing the single-component polyurethane primer include: alcohol materials, the alcohol materials including polyester polyols, the polyester polyols including at least one of polyethylene glycol butanediol adipate polyol, polyethylene glycol diethylene glycol adipate polyol and poly-3-methyl-1,5-pentanediol adipate polyol; isocyanate materials, the isocyanate materials including diisocyanate and polyisocyanate, the diisocyanate and / or the polyisocyanate including an aromatic ring in a molecular structure, and the diisocyanate:polyisocyanate = 6-12:1-5 in terms of mass ratio; additives, the additives including a catalyst; a solvent; and the alcohol materials:isocyanate materials = 1-2:0.7-1.7 in terms of mass ratio. The single-component polyurethane primer can form a primer layer with large surface tension, solvent resistance and corrosion resistance to solvents in a glue layer, and can improve the surface tension of a substrate.

The utility model relates to recycling device technical field discloses a kind of heat recovery device for diethylene glycol production, including bearing plate, the top of bearing plate is fixedly connected with first heat preservation bucket, the outer wall of first heat preservation bucket is penetrated and slidably connected with the heat conduction plate of uniform distribution, one end of heat conduction plate is fixedly connected with insulating pad, one end of heat conduction plate is penetrated and slidably connected with second heat preservation bucket, and second heat preservation bucket is fixedly connected with bearing plate, the top of heat conduction plate is penetrated and slidably connected with sliding block, the top of sliding block is slidably connected with carousel, the outer wall of carousel is fixedly connected with cover, and cover is contacted with first heat preservation bucket and second heat preservation bucket. In the utility model, the linkage between heat conduction plate, insulating pad, sliding block, carousel, transmission rod, worm, rotating rod, worm wheel, disc and baffle can flexibly adjust heat exchange efficiency according to different production needs and environmental conditions.

The invention relates to the technical field of comprehensive utilization of vanadium titano-magnetite resources, in particular to a flotation combined reagent and a flotation method for vanadium titano-magnetite associated ultralow-grade cobalt-nickel ore. The flotation combined reagent comprises a copper ammonia compound activating agent composed of copper sulfate, ammonium carbonate and sodium citrate, a compound inhibitor composed of sodium humate, tannic acid and sodium tripolyphosphate, a main collecting agent butyl xanthate, an auxiliary collecting agent alkyl hydroxamic acid and a foaming agent diethylene glycol monobutyl ether. According to the method, a technical system of bulk flotation process-novel collaborative reagent system is constructed, so that the technical problem of recycling associated ultralow-grade cobalt and nickel resources in the vanadium titano-magnetite iron separation tailings is successfully solved, the problem of low separation efficiency of ultralow-grade minerals is effectively solved, a complete and efficient technical scheme is formed, and the method is suitable for industrial production. And an innovative technical path is provided for comprehensive recovery of associated cobalt and nickel resources of the vanadium titano-magnetite.

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 relates to the technical field of antirust coatings, in particular to a water-based environment-friendly antirust coating for a metal surface and a preparation method of the water-based environment-friendly antirust coating. The water-based environment-friendly antirust coating is prepared from the following raw materials in parts by weight: 35 to 45 parts of a novel water-based polyurethane solution, 13 to 17 parts of novel nano cellulose, 15 to 20 parts of an antirust pigment, 3 to 6 parts of silicon dioxide, 1.5 to 2.5 parts of a dispersing agent, 0.5 to 1.5 parts of a defoaming agent, 1.5 to 2.5 parts of a thickening agent, 2 to 4 parts of diethylene glycol butyl ether and 15 to 20 parts of deionized water. The water-based environment-friendly anti-rust coating is an environment-friendly high-performance coating, metal protection is achieved through the synergistic effect of physical barriers and chemical protection, a compact and continuous organic coating is formed on the metal surface, moisture, oxygen and corrosive media are effectively isolated, an electrochemical corrosion path is blocked, anti-rust pigment migrates to a metal interface in the coating, and the anti-rust effect is good. A chemical reaction with an iron matrix is carried out to generate an indissolvable passive film, so that the cathode reaction is inhibited and the corrosion rate is reduced.

This invention relates to the field of baby bath gel technology, specifically to a moisturizing baby bath gel and its preparation method. It comprises, by weight percentage: 10.0%~30.0% of a complex amphoteric surfactant system, 5.0%~15.0% of an amino acid surfactant, 2.0%~10.0% of a nano-moisturizing oil system containing petrolatum nano-oils, 0.5%~2.0% of a conditioning agent, 1.0%~5.0% of plant extracts, and the balance being an aqueous matrix. The complex amphoteric system is composed of a low-impurity coconut oil-based amphoteric diethylene glycol and sodium lauroyl amphoteric acetate synthesized in a two-step temperature-controlled process. This invention abandons strongly irritating anionic surfactants and high-dose polymeric thickeners, utilizing the synergistic construction of a dense worm-like micelle network by two amphoteric surfactants. This not only achieves long-term stable suspension of petrolatum nano-oils in an extremely mild system, but also targets and deposits oils during emulsification during bathing, achieving a combined cleansing and conditioning experience with an extremely gentle, tear-free safety.

Provided is a heat-shrinkable polyester film that not only has a high heat shrinkage in the main shrinkage direction, but also has a good heat shrinkability of recycled PET resin even when recycled together with used beverage PET bottles. A heat-shrinkable polyester film containing, in 100 mol% of a dicarboxylic acid component, 95 mol% or more and 100 mol% or less of a dicarboxylic acid, 0 mol% or more and 5 mol% of isophthalic acid, and containing, in 100 mol% of all ester units, 85 mol% or more and 98 mol% or less of terephthalic acid ethylene glycol ester units, and containing, in 100 mol% of a polyol component, 2 mol% or more and 15 mol% or less of diethylene glycol, has a prescribed hot water heat shrinkage, and has a melting peak temperature, a crystallization exotherm, and a melting exotherm determined by melting the film after melting and quenching using a differential scanning calorimeter (DSC), and then re-warming, within prescribed ranges.

The utility model relates to the technical field of dichloro propyl diethylene glycol dimaleate, in particular to a multi-stage filtering device for producing dichloro propyl diethylene glycol dimaleate, which comprises a containing barrel, a filtering assembly, a driving assembly and a cleaning assembly, a screen and the inner wall of the containing barrel are obliquely installed, a horizontal flow field of a traditional plane screen is broken through, and the horizontal flow field of the screen is improved. The flow speed in a low-position area is high so as to enhance scouring force, the flow speed in a high-position area is used for accelerating liquid diversion by using an inclination angle, the design effectively avoids impurity deposition in a local low-speed area, inhibits the vicious circle of blockage-flow speed reduction-blockage intensification, prolongs the effective filtering time of the screen and improves the filtering effect of the screen. The driving assembly can drive the sliding block to slide in the sliding groove in a reciprocating mode, so that the screen generates periodic micro-amplitude vibration or displacement, and impurities attached to the surface of the screen are removed in real time in the filtering process in cooperation with the cleaning assembly on the side face.

The application discloses a cold-resistant anticorrosive and antirust self-spraying granular elastic glue and a preparation method thereof. The elastic glue comprises the following components in percentage by mass: 15-35% of epoxy resin, 7.5-17.5% of amino resin, 9-25% of anticorrosive functional powder, 0.1-0.8% of silane coupling agent, 3-5% of elastic modifier, 1-3% of granular carrier, 0.3-0.8% of surfactant, 15-35% of diethylene glycol butyl ether, 5-10% of acetone and 4-6% of antifreeze. The self-spraying auxiliary agent and the antifreeze are compounded in the elastic glue, so that the tank pressure is sufficient and the viscosity is low at low temperature, the technical problem of difficult spraying at low temperature is solved, the elastic glue can be directly sprayed on a metal structure, a concrete surface or a pretreated anticorrosive layer, the sprayed mist is quickly solidified to form a uniform and continuous elastic protective layer at low temperature, water and salt mist penetration and small impact absorption are prevented, and the durability of the structure is improved.

Provided are a chemically recycled PET fiber that exhibits less degradation and has excellent strength and durability, and a rubber-fiber composite product such as a tire or the like in which said chemically recycled PET fiber is used.　This chemically recycled PET fiber is obtained by chemically recycling PET products and spinning the same. The chemically recycled PET fiber is characterized in that: the chemically recycled PET fiber has a weight average molecular weight of 21000-27000 and a polydispersity index (weight average molecular weight / number average molecular weight) of 1.8-2.3; and, in the chemically recycled PET fiber, the content of isophthalic acid (IPA), the terminal carboxyl group (CEG) concentration, and the diethylene glycol (DEG) content satisfy the formula 101.57-0.67×CEG concentration-4.24×IPA content-21.74×DEG content≥54.4.

The presently claimed invention relates to an alkaline composition for cleaning a substrate comprising i) copper or copper alloy and ii) cobalt or cobalt alloy, the composition comprising: a) at least one pH adjustor selected from diglycolamine, 4,4-diethoxy-N,N-dimethyl-1-butanamine, 3-dimethylaminopropan-1-ol, dimethylaminoethoxyethanol, N,N-dimethylisopropanolamine, ethylethanolamine, N-methyldiethanolamine, 2-(2-(methylamino)ethoxy)ethanol, 3-(methylamino)propane-1,2-diol, 2-[2-[2-(2-methoxy- ethoxy)ethoxy]ethoxy]ethylamine, 2-[2-(2-aminoethoxy)-ethoxy]-ethanol, N-butyldiethanolamine, diisopropanolamine, N-methyldiisopropanolamine, monoethanolamine, 3-dimethylamino-1,2-propandiol, 2- amino-1-butanol, 2-(2-(2-(2-aminoethoxy)ethoxy)ethoxy)ethanol, prolinol, 1-methyl-2-pyrrolidinemethanol, 1-methyl-2-pyrrolidinemethanol, 1-methyl-3-pyrrolidinol, 2-amino-2-methyl-1-propanol, N,N-dimethylethanolamine, butylethanolamine, diethylethanolamine, 3-methoxypropylamine, 4-(2-hydroxyethyl)morpholine, 4-(dimethylamino)cyclohexanol, 2-amino-2-methyl-1, 3-propanediol, or diisopropylamine; b) at least one complexing agent selected from C2 to C12 hydrocarbon having at least two sulfonic acid or carboxylic acid groups; c) at least one polymeric dispersing agent having a weight average molecular weight ≥ 1000 g / mol; and d) a solvent comprising water.

The invention discloses preparation and application of a diethylene glycol etherification catalyst, and belongs to the technical field of organic synthesis. The catalyst disclosed by the invention is prepared by loading metal M into pores of an acidic molecular sieve and then roasting, the metal M is one or more than two of Fe, Co, Ni, Cu, Zn, Nb, Ag, Sn, W, Ga, Pd, Re, Y, La, Ce, Nd, In, Zr, Sm and Er, and the content of the metal M in the catalyst is 0.1-50 wt%; the catalyst is used in a reaction for catalyzing diethylene glycol and low-carbon alcohol to prepare diethylene glycol ether, the selectivity of the diethylene glycol ether is remarkably improved, and the catalyst is low in raw material cost, simple in preparation method, easy to industrially amplify and very good in application prospect.

The invention discloses a texturing process of a single crystal battery piece. The texturing process comprises the following steps: S1, performing pre-texturing treatment on a silicon wafer by adopting pre-texturing liquid; s2, texturing the silicon wafer by adopting texturing liquid; the prefabricated down liquid comprises polyvinylpyrrolidone and polyvinyl alcohol; the texturing liquid comprises inorganic alkali, a defoaming agent and a catalyst; the inorganic base is selected from at least one of sodium hydroxide and potassium hydroxide, and the defoaming agent is selected from at least one of dodecyl trimethyl ammonium chloride, hexadecyl trimethyl ammonium chloride, octadecyl trimethyl ammonium chloride, diethylene glycol, triethylene glycol and tetraethylene glycol. The catalyst is selected from at least one of sodium 5-nitro-o-methoxyphenolate, sodium o-nitrophenolate and sodium p-nitrophenolate. A nucleating agent solution is adopted to carry out texturing pretreatment on a silicon wafer, then alkali treatment texturing is carried out on the silicon wafer, and the liquid changing period of the texturing process is long; and the cell pieces prepared by taking the polyvinylpyrrolidone and the polyvinyl alcohol as the combined nucleating agent are relatively small in inter-piece color difference.

The invention discloses an anhydrous liquid-liquid phase change absorbent for carbon dioxide capture, and a preparation method and application thereof, and belongs to the technical field of carbon dioxide recovery. The invention relates to an anti-freezing agent which comprises the following components in percentage by weight: 20-30% of diglycolamine, 20-50% of dimethylethanolamine, 10-40% of dimethyl sulfoxide and the balance of a physical regulator. The anhydrous liquid-liquid phase change absorbent for capturing carbon dioxide in flue gas provided by the invention has the characteristics of high CO2 absorption capacity, short phase splitting time, high desorption rate and low CO2 rich phase viscosity after absorption, and the regeneration energy consumption of the absorbent can be greatly reduced. The optimal desorption temperature is 110 DEG C, the minimum regeneration energy consumption reaches 2.26 GJ / tCO2, the maximum desorption rate is 3.12 mmol CO2 kg <-1 > s <-1 >, the phase splitting time is 120-180 s, and the maximum CO2 absorption capacity can reach 3.23 mol / L.

This invention relates to a halogen-free flame-retardant polyester resin for powder coatings. This polyester resin is obtained through a polymerization reaction using raw materials including piperazine, dimethyl adipate, p-phenylenediamine, melamine, succinic anhydride, diethylene glycol, 2-nitroterephthalic acid, adipic acid, and ammonium polyphosphate. The resulting polyester resin exhibits high branching, high rigidity, and extremely high nitrogen content in its molecular chain segments. The cured film exhibits high hardness and, without the presence of environmentally unfriendly halogen atoms, achieves an oxygen index exceeding 31%, demonstrating excellent flame-retardant properties. Furthermore, the polyester resin has low steric hindrance of its terminal carboxyl groups and high reactivity, allowing for low-temperature curing. The conventional properties of the coating film meet the application requirements of 60 / 40 powder coatings.

This application relates to the field of waterborne cathodic electrophoretic coating technology, specifically disclosing a bisphenol A epoxy-polyetheramine composite matte electrophoretic emulsion and its preparation method. The bisphenol A epoxy-polyetheramine composite matte electrophoretic emulsion comprises the following raw materials in parts by weight: 30-40 parts E-51 epoxy resin, 8-10 parts bisphenol A, 9-11 parts bisphenol A polyoxyethylene ether, 0.08-0.12 parts benzylamine, 2.5-3.5 parts methylethanolamine, 0.8-1.2 parts diethylene glycolamine, and 2.5-3.5 parts ketimine. This application uses E-51 epoxy resin, bisphenol A, and bisphenol A polyoxyethylene ether as the matrix skeleton, and obtains an epoxy equivalent prepolymer after chain extension catalyzed by benzylamine. At the same time, toluene diisocyanate is reacted with diethylene glycol butyl ether, diethylene glycol ethyl ether, and trimethylolpropane polyoxyethylene ether to prepare a blocked crosslinking agent, thereby achieving a uniform internal matting effect without the addition of external matting powder.

The application provides a polyester fiber composite hot melt batting, a preparation method thereof and a quilt. The preparation method comprises the following steps: S1. mixing diacid, dihydric alcohol and antimony trioxide, and performing esterification reaction in a protective gas atmosphere, dehydration, adding trimethyl phosphate, and performing polycondensation reaction; the diacid comprises terephthalic acid, isophthalic acid and adipic acid, and the dihydric alcohol comprises diethylene glycol and ethylene glycol; the melt is extruded, cooled, and cut into pieces; the modified polyester piece is vacuum dried and then melt-spun and stretched; S2. the modified polyester fiber is made into a fiber web together with polyester fiber and cotton fiber; S3. three layers of the fiber web are stacked and hot-pressed, and the molten modified polyester fiber bonds the three layers of the fiber web together to form a batting. The batting is safe and environmentally friendly, and the problem of environmental pollution caused by the use of adhesive in the preparation process of the synthetic batting in the prior art is avoided.

The invention belongs to the field of film-wrapped stranded conductors, and particularly provides a low-dielectric-loss paint film composition and a preparation method thereof and a film-wrapped stranded conductor. The preparation method of the low-dielectric-loss paint film composition comprises the following steps that S01, ferrocenecarboxylic acid, octaaniline propyl cage-shaped polysilsesquioxane and diethylene glycol are taken and mixed, N, N-dimethylformamide is used for dispersion, and a mixture is obtained; stirring and reacting at room temperature to obtain a precursor liquid, then supplementing octaaniline propyl cage-shaped polysilsesquioxane, continuously reacting, then supplementing N, N-dimethylformamide, re-dispersing, and recording as a liquid A for later use; s02, dihydric alcohol and diisocyanate are taken and mixed, the mixture is heated for a reaction, then N, N-dimethylformamide is added for dispersion, and after continuous treatment, a polyurethane prepolymer dispersion liquid is obtained and marked as a liquid B for standby application; and S03, mixing the solution A with the solution B, and concentrating to obtain the paint film composition. The paint film composition prepared by the invention has the advantages of low dielectric loss and good mechanical properties.

According to one embodiment, a polyester resin comprising regenerated BHET possesses excellent heat resistance characteristics, since the amount of diethylene glycol generated from the regenerated BHET that remains in the polyester resin is adjusted to a predetermined level or lower, so that the polyester resin can be manufactured in the form of a heat-shrink film.

The invention relates to the technical field of compound synthesis, in particular to a synthesis method of N, N-dimethylaminoethoxyethanol. The synthesis method comprises the following steps: mixing diglycolamine, a formaldehyde aqueous solution, a palladium carbon catalyst and hydrogen, and carrying out methylation reaction. The synthesis method is simple to operate, high in reaction conversion rate, high in product purity and good in economical efficiency.

Methods and compositions for treating hair, such as to reduce split ends, seal cracks in hair cuticles, reduces damage to hair, and / or reduce frizziness and / or hair fly-aways. The methods and compositions use a combination of hydroxypropyl guar hydroxypropyltrimonium chloride, Argania spinosa kernel oil, guar hydroxypropyltrimonium chloride, and algin. In some instances, the composition further contains bis-aminopropyl diglycol dimaleate. In some instances, the composition further contains a fructooligosaccharide and / or Beta vulgaris root extract. In some instances, the composition further contains arginine, aspartic acid, glycine, alanine, serine, valine, proline, threonine, isoleucine, histidine, and / or phenylalanine.