184 results about "Trimethylolpropane" patented technology

This invention discloses a visible-light-responsive dynamically covalently cross-linked self-healing polyurethane and its preparation method, belonging to the field of self-healing materials technology. The material is prepared by reacting diisocyanate, long-chain diol, butanediol, trimethylolpropane, and a monool containing an azophenylboronic acid structure in a certain proportion at 60°C. This invention achieves visible-light-responsive self-healing of the polyurethane material by introducing a visible-light-responsive azophenylboronic acid structure into the polyurethane and utilizing the photoresponsive cis-trans isomerization of the azo structure to regulate the reversible breakage and recombination of the boron-oxygen hexacyclic ring. The visible-light-responsive dynamically covalently cross-linked self-healing polyurethane material prepared by this invention maintains high mechanical strength (16.47 MPa) while exhibiting a strength self-healing efficiency of 95.8% after 8 hours of visible light irradiation, showing broad application prospects in smart materials, anti-corrosion coatings, and other fields.

The invention relates to the technical field of ink, in particular to modified filler environment-friendly ink and a preparation method thereof. The modified filler environment-friendly printing ink is prepared from the following raw materials in parts by mass: 20 to 40 parts of waterborne acrylic emulsion, 10 to 20 parts of polyurethane acrylate prepolymer, 1 to 5 parts of bis (trimethylolpropane) tetraacrylate, 10 to 20 parts of pentaerythritol tetraacrylate, 5 to 10 parts of mica powder, 1 to 2 parts of 3-aminopropyltriethoxysilane, 0.1 to 1 part of epoxy chloropropane and 5 to 10 parts of amino-terminated polyamidoamine. The coating is prepared from the following components in parts by weight: 1-2 parts of a photoinitiator, 1-3 parts of a dispersing agent, 1-2 parts of a reactive diluent, 1-2 parts of an organic silicon defoaming agent, 0.5-1.5 parts of a mildew preventive, 0.1-1 part of a thixotropic agent, 5-15 parts of pigment, 1-5 parts of kaolin, 5-10 parts of polyethylene wax and 1-5 parts of water. The obtained ink is good in dispersion stability, good in flexibility after being cured and excellent in adhesive force.

The invention discloses yellowing-resistant light-cured organic silicon resin and a preparation method thereof, and belongs to the technical field of light-cured resin. The resin is prepared from the following raw materials in parts by weight: 80 to 100 parts of vinyl-terminated polysiloxane, 15 to 25 parts of trimethylolpropane tri (3-mercaptopropionate), 1 to 3 parts of yellowing-resistant aid, 2 to 4 parts of photoinitiator and 0.5 to 1 part of flatting agent. When the resin is prepared, the raw materials are uniformly mixed under a dark condition, and the resin is obtained after vacuum defoaming. Wherein the yellowing-resistant auxiliary agent is a benzotriazole ultraviolet light absorber and is synthesized through a multi-step reaction, the structure simultaneously contains a benzotriazole ring and anthryl, and the benzotriazole ring and the anthryl have a synergistic effect so that ultraviolet rays can be efficiently absorbed and yellowing can be inhibited. The obtained resin has excellent yellowing resistance and high curing speed, and is suitable for the fields of coatings, printing ink, adhesives, electronic packaging and the like.

The invention belongs to the technical field of foaming polyurethane, and provides a microsphere foaming polyurethane material, a base plate and a preparation method and application of the base plate, raw materials are prepared from a polyol component and an isocyanate component according to the proportion that the isocyanate index is 1.05-1.15; wherein the polyol component is prepared from the following components in parts by mass: 60 to 65 parts of polytetrahydrofuran polyol, 10 to 15 parts of poly trimethylene ether glycol, 6 to 8 parts of polypropylene oxide polyol A, 6 to 10 parts of polypropylene oxide polyol B, 4 to 6 parts of 1, 4-butanediol, 0.5 to 1.5 parts of trimethylolpropane, 0.3 to 0.5 part of a catalyst, 0.8 to 1.5 parts of a foam stabilizer, 0.5 to 0.7 part of a dispersing agent EFKA-4040 and 0.1 to 0.3 part of polyether modified polysiloxane BYK-333; 0.4 to 0.6 part of expansion microspheres and 0.1 to 0.3 part of water. According to the technical scheme, the problem that a polyurethane material in the prior art cannot have low compression set and excellent fatigue resistance at the same time is solved.

This invention provides a breathable plaster matrix for application and its preparation method, belonging to the field of polymeric dressings and plasters. The plaster matrix raw materials include terpene-modified rosin beeswax, hydrogenated rosin glyceryl ester, camellia oil, castor oil, stearic acid hydrophobically modified microcrystalline cellulose, zinc oxide, glycerin, coated citric acid, sodium bicarbonate, polyethylene glycol, camphor, and menthol. The terpene-modified rosin beeswax is prepared by reacting rosin and α-pinene in the presence of di-tert-butylperoxyisopropylbenzene, followed by the addition of white beeswax and maleic anhydride, and then the addition of trimethylolpropane. The stearic acid hydrophobically modified microcrystalline cellulose is microcrystalline cellulose coated with stearic acid. The coated citric acid is citric acid coated with hydrogenated castor oil. This invention's plaster matrix significantly improves skin breathability, application comfort, and biocompatibility while ensuring sufficient adhesion, formability, and drug loading capacity.

The present application relates to a kind of biodegradable hydraulic oil composition and its preparation method, it includes the following weight parts of component: biodegradable base oil 96.0-98.5 parts and composite detergent 1.5-2.5 parts;The base oil is the mixture of pentaerythritol tetraester and trimethylolpropane triester, fatty acid chain is C8-C10 saturated fatty acid, saturation ≥90%, 28 days biodegradability meets the determination of OECD 301B;The composite detergent includes: octylated diphenylamine 0.45-0.90 parts, 2,6-di-tert-butyl-4-methylphenol 0.10-0.25 parts, 2-ethylhexyl acidic phosphate and its ethanolamine salt 0.60-1.20 parts, dodecenyl succinic acid di (2-ethylhexyl ester) 0.15-0.35 parts, and the mass ratio of octylated diphenylamine and 2,6-di-tert-butyl-4-methylphenol is 1.5:1~4:1.

The application discloses a kind of eluent and its preparation method and application, preparation method includes: adding potassium methoxide methanol solution to the trimethylolpropane in molten state, after stirring, vacuumizing, then droping glycidol monomer, after reaction, add methanol, dry, obtain hyperbranched polyglycerol ether;Add carbonyl imidazole to the N,N-dimethylformamide solution of saturated fatty acid, after stirring and mixing, drop to the N,N-dimethylformamide solution of hyperbranched polyglycerol ether, reaction is heated in nitrogen atmosphere, after reaction, the product is treated, obtain temperature-sensitive hyperbranched polyglycidol ether eluent.The eluent prepared in the application can greatly reduce the treatment cost of elution waste liquid while efficiently removing heavy metals.

The invention discloses a composition for relieving, repairing and promoting skin regeneration as well as a preparation method and application of the composition. The composition is prepared from the following raw materials in parts by weight: 0.1 to 5 parts of mandelic acid, 0.5 to 10 parts of a cynanchum atratum extract, 1 to 8 parts of a xylitol compound, 0.5 to 15 parts of regenerated silicon, 1 to 10 parts of a starfish regeneration repair factor, 0.3 to 1.5 parts of trimethylolpropane tri (3-mercaptopropionic acid) ester, 0.05 to 0.5 part of calcium chloride, 0.1 to 1 part of an additive, 0.2 to 2 parts of chitosan-polycaprolactone, 0.2 to 1 part of a pH regulator and 5 to 15 parts of a solvent. 0.3 to 0.8 part of an antioxidant and 3 to 10 parts of a humectant; the additive is hyaluronic acid or formylated hyaluronic acid. Through a multi-channel synergistic effect, the effects of relieving, repairing and promoting skin regeneration are improved.

The invention relates to a preparation method and application of polyether glycol, the structural formula of the polyether glycol is shown in the specification, the preparation method comprises the following steps: trimethylolpropane and carbonic ester are subjected to transesterification to obtain a ketal compound, then the ketal compound is used as an initiator to polymerize ethylene oxide to obtain nonionic polyether mono-alcohol, and the nonionic polyether mono-alcohol is used as a solvent. And carrying out Williamson reaction on the polyether monoalcohol to obtain methyl-terminated polyether, and carrying out ring-opening reaction on the methyl-terminated polyether under an acidic condition to obtain the nonionic polyether glycol. The preparation process is wide in raw material source, low in cost, mild in condition, efficient in reaction and wide in industrialization prospect.

The invention relates to the field of lubricating oil, in particular to a compressor oil composition which is prepared from the following components in parts by weight: 0.005 to 0.2 part of an anti-rust agent, 0.05 to 1 part of an extreme pressure anti-wear agent, 0.01 to 0.5 part of a friction reducing agent, 3 to 8 parts of synthetic ester, 0.01 to 1 part of an antioxidant, 0.001 to 0.1 part of an anti-foaming agent and 90 to 97 parts of base oil. The anti-friction agent is a trimethylolpropane-triacid ester derivative, the anti-rust agent is formed by mixing an alkenyl succinic acid half-ester derivative and a carboxyl imidazoline derivative, and the anti-wear reagent at extreme pressure is formed by mixing triphenyl phosphate and an alkyl thiophosphate derivative. The antioxidant is formed by mixing any two of alkyl diphenylamine, alkyl phenyl-alpha-naphthylamine and alkyl hindered phenol. The invention further relates to a preparation method of the compressor oil composition. The compressor oil composition provided by the invention has excellent washing resistance and rust resistance.

The invention provides a method for removing heavy metals by acidizing bleaching earth. The heavy metals in the bleaching earth are removed by using a heavy metal adsorbent. Firstly, acrylate reacts with diethanol amine to generate an esterification product, then the esterification product reacts with trimethylolpropane to form a hydroxyl-terminated hyperbranched polymer, and then the hydroxyl-terminated hyperbranched polymer reacts with isocyanate acrylate to introduce double bonds to obtain hyperbranched acrylate. Meanwhile, sodium alginate reacts with 4-chlorophenylboronic acid to obtain boric acid modified sodium alginate, then the boric acid modified sodium alginate reacts with tannic acid to introduce a large amount of hydroxyl groups, and finally the boric acid modified sodium alginate reacts with 3-aminopropanol vinyl ether to introduce double bonds, so that the sodium alginate compound containing double bonds is prepared. And copolymerizing the two monomers with acrylic acid, N-(2-aminoethyl) acrylamide and 2-acrylamido-2-methylpropanesulfonic acid to obtain the adsorbent with a three-dimensional network structure and multiple functional groups. Through the treatment, the heavy metal content of the bleaching earth is obviously reduced, no foreign impurities exist, and the functions of high decolorization rate and strong adsorbability are reserved.

The application discloses a kind of resin for flame-retardant optical fiber reinforcing core and preparation method thereof, it is related to epoxy resin technical field.The resin for flame-retardant optical fiber reinforcing core includes the following mass parts components: 80~90 parts bisphenol A epoxy resin, 2~4 parts trimethylolpropane triglycidyl ether, 6~8 parts 4,4'-diphenyl bisphenol diglycidyl ether, 5~7 parts amino boron nitride, 15~18 parts toughening curing agent, 25~35 parts acid anhydride curing agent, 0.2~1 parts accelerator.On the basis of guaranteeing low shrinkage, the mechanical properties, flame-retardant performance of resin for flame-retardant optical fiber reinforcing core are effectively improved.

The invention relates to the field of heat-conducting silicone grease, and discloses low-thermal-resistance heat-conducting silicone grease and a preparation method thereof. The heat-conducting silicone grease with low thermal resistance is prepared from the following raw materials in parts by weight: 100 to 120 parts of silicone oil polymer, 135 to 150 parts of heat-conducting filler, 4 to 6.5 parts of methylcyclosiloxane, 2 to 4 parts of alkyl alkoxy silane and 0.2 to 0.4 part of lubricating additive, the silicone oil polymer is prepared from trimethyl trivinyl cyclotrisiloxane, vinyl terminated polydiphenyl siloxane-polymethylvinyl siloxane block polydimethylsiloxane, trimethylolpropane diallyl ether, hydrogen-containing silicone oil and a platinum catalyst through a reaction. The heat-conducting silicone grease prepared by the invention has relatively good thixotropy, heat conductivity and low-heat-resistance stability, and silicone oil is not easy to separate out in a long-term cold and hot cycle use process.

This invention belongs to the field of packaging and printing materials, specifically relating to a high-temperature resistant water-based micro-crosslinked transfer coating. The raw materials for this high-temperature resistant water-based micro-crosslinked transfer coating consist of the following components: methacrylic acid, N-hydroxymethylacrylamide, butyl acrylate, methyl methacrylate, diallyl phthalate, 1,6-hexanediol diacrylate, tricyclodecanedimethylol diacrylate, trimethylolpropane triacrylate, di(trimethylolpropane)tetraacrylate, potassium persulfate, sodium bicarbonate, alkylphenol polyoxyethylene ether ammonium sulfate, nonylphenol polyoxyethylene ether, deionized water, ethanol, ammonia, wetting agent, defoamer, and film-forming agent. Its beneficial effects include a stable reaction process during the preparation of this high-temperature resistant water-based micro-crosslinked transfer coating, reducing the likelihood of slag formation or explosive polymerization; high gloss in the coating film; good adhesion to vacuum metallization; minimal fogging or whitening; high-temperature molding resistance up to 180℃; and easy peeling of PET film with a high yield.

The invention belongs to the field of lubricating oil, and particularly relates to a multi-gear gearbox lubricating oil composition as well as a preparation method and application thereof. The multi-gear gearbox lubricating oil composition is prepared from the following raw materials in percentage by mass: 2.0 percent to 4.5 percent of a viscosity index improver, 0.01 percent to 0.08 percent of a clearing agent, 4.5 percent to 7.0 percent of a dispersing agent, 0.3 percent to 1.0 percent of an anti-wear reagent at extreme pressure, 0.05 percent to 0.3 percent of an anti-rust agent, 0.3 percent to 1.5 percent of an antioxidant, 0.01 percent to 0.2 percent of a metal deactivator, 0.3 percent to 1.5 percent of a cross-linking agent, 0.01 percent to 0.03 percent of an anti-foaming agent and the balance of base oil. The cross-linking agent of the composition adopts trimethylolpropane tri (1H-imidazole-1-acetate), so that the wear resistance of an oil product is effectively enhanced, the friction coefficient is reduced, and the friction durability is improved, thereby achieving the effects of prolonging the endurance mileage and prolonging the service life of hardware.

The invention discloses a low-temperature-resistant anti-corrosion evaporator fin and a preparation method thereof, and relates to the field of fin processing, an evaporator aluminum foil fin is coated with a functional coating, and the functional coating is formed by reacting and curing a coating slurry agent and a curing agent according to the mass ratio of 2: 1. The coating comprises polyaspartic acid ester, polyether amine, amino organic silicon resin and polyether graft modified boron nitride filler. The curing agent is a prepolymer with a branched structure, and the prepolymer is prepared by carrying out co-modification on isophorone diisocyanate and dicyclohexylmethane diisocyanate by adopting trimethylolpropane and polytetrahydrofuran polyol. Through systematic modification and compounding of the curing agent, the filler and the functional resin, the fin still keeps the tensile strength retention rate of 90% or above at low temperature, passes a neutral salt spray test for 900 hours, has excellent low-temperature toughness, wear resistance and long-acting corrosion resistance, and is suitable for a refrigeration equipment evaporator under a low-temperature working condition.

This invention relates to an aqueous polyurethane dispersion composition, an aqueous polyurethane dispersion, a preparation method, and applications. The composition comprises: 15-25 parts of a polyether soft segment polyol, 10-20 parts of a polycarbonate diol, 18-26 parts of an aliphatic or alicyclic isocyanate, 3-5 parts of a carboxyl-containing hydrophilic chain extender, 2-5 parts of ethoxylated trimethylolpropane, 0.3-1.0 parts of a phosphate-containing diol, 0.3-1.0 parts of a urea derivative chain extender, 1.5-3 parts of an organic amine neutralizer, 0.01-3 parts of a catalyst, and 25-40 parts of deionized water. The ethoxylated trimethylolpropane forms a branched structure encapsulating ester bonds, with the phosphate ester groups located at the chain ends, improving aluminum powder orientation. The urea derivative forms a reversible hydrogen bond network, balancing thixotropy. Compared with existing technologies, this invention solves the problems of poor hydrolysis resistance, insufficient aluminum powder orientation, and difficulty in balancing thixotropy in aqueous polyurethane.

The application relates to a preparation method of a flame-retardant modified polyisocyanate, and belongs to the technical field of polyurethane elastomers. Nano-composite flame retardants are chemically grafted through the reaction of hydroxyl groups and isocyanate groups in polyisocyanate segments, can be uniformly dispersed in a hydrophilic system, and avoid agglomeration and sedimentation caused by physical mixing. Not only is the dispersibility of the nano-composite flame retardants in polymers improved, but also the interfacial bonding force between the two is improved. 2,2-dimethylol propionic acid is covalently grafted to the polyester side chain of the polyisocyanate through the esterification reaction of hydroxyl groups, pyromellitic anhydride and trimethylolpropane, is converted into a carboxylate after neutralization, and the dispersibility in water is improved. The branched main chain of the comb-shaped polyisocyanate and the side chain polyester unit form a large steric hindrance, further weaken the van der Waals force between molecules, enhance the repulsion between particles, avoid molecular aggregation, and make the flame-retardant modified polyisocyanate form a stable and uniform dispersion liquid in deionized water.

To provide a thermosetting coating composition capable of forming a cured coating film excellent in extensibility, toughness and shielding properties.SOLUTION: The thermosetting coating composition according to the present invention comprises a polycarbonate polyol (A) and / or a polyether polyol (B), a carbodiimide-modified diphenylmethane diisocyanate (C), at least one selected from the group consisting of a trimethylolpropane adduct isocyanate (D), a biuret isocyanate (E), and an allophanate isocyanate (F), and a color pigment (G).SELECTED DRAWING: Figure 1

This invention discloses a novel method for preparing a clean fuel additive, relating to the field of clean fuel additive technology. Its components include: a main cleaning agent: Mannich base; a dispersant: polyetheramine; a surfactant: highly active polyisobutylene; an antioxidant: N,N-di-sec-butyl-p-phenylenediamine; an octane booster: dimethyl carbonate; a solvent: 120# solvent oil; a combustion improver: C9-C11 mixed olefins; a stabilizer: trimethylolpropane; an ignition promoter: nitrobenzene; and auxiliary additives: n-dodecane, sodium polystyrene sulfonate, and eugenol methyl ether. This invention achieves a significant synergistic effect among the core components such as Mannich base, polyetheramine, polyisobutylene, amine antioxidants, and dimethyl carbonate. This synergistic effect allows the additive to comprehensively optimize the cleanliness, anti-knock properties, stability, and combustion efficiency of fuel at a relatively low total addition amount.

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.

This invention belongs to the field of petroleum extraction technology, specifically relating to a high-temperature resistant oil displacement agent and its preparation method. The method includes: in a nitrogen-filled reactor, under the action of a catalyst, trimethylolpropane allyl ether and 1,1,1,2,2,3,3,4,4,5,5,6,6-tridecylfluoro-8-iodooctane undergo an addition reaction; next, a sulfonation reaction occurs with chlorosulfonic acid; and finally, a substitution reaction occurs with dodecylamine to obtain the product oil displacement agent. The molar ratio of 1,1,1,2,2,3,3,4,4,5,5,6,6-tridecylfluoro-8-iodooctane, chlorosulfonic acid, dodecylamine, and trimethylolpropane allyl ether is 0.8-1.2:1.8-2.4:0.8-1.2:1. The molecular formulas of the main components of the oil displacement agent are as follows: [Insert molecular formula here]. This invention's high-temperature resistant oil displacement agent features low interfacial tension, good temperature resistance, and a high degree of enhanced oil recovery.

The application discloses a UV glue, a perovskite quantum dot glue liquid and a perovskite quantum dot packaging structure. The UV glue comprises the following components: a prepolymer, a single-functional monomer, a double-functional monomer, a multi-functional monomer and a photoinitiator; the prepolymer comprises at least one of aliphatic polyurethane oligomers; the multi-functional monomer comprises di-trimethylolpropane tetraacrylate. The aliphatic polyurethane oligomer prepolymer and the multi-functional monomer di-trimethylolpropane tetraacrylate are combined in the UV glue, the crosslinking property is good, the viscosity adjustability is large, the requirement for a coating device is low, the UV glue is suitable for industrial production, and the problem of invalid edges of perovskite quantum dot films generated under severe aging conditions can be effectively solved.

The invention belongs to the technical field of textiles, and discloses a high-elasticity polyester fabric and a preparation method thereof. The fabric is formed by 100% modified PET, and a molecular chain of the fabric adopts a three-arm star-linear topological structure which takes trimethylolpropane as a core and contains a PET rigid block and a PTMG flexible block; the preparation method comprises the steps of prepolymer synthesis, melt polycondensation, solid-phase tackifying, melt spinning, false twist deformation and heat setting, and precise construction of a microstructure is achieved by regulating and controlling the density of a catalyst system and topological nodes. Through the innovative design of a molecular topological structure, a pure polyester fabric system with high elasticity, high weather resistance, high strength and complete recoverability is successfully constructed, so that the problems of environmental stability and recovery of the existing spandex-based elastic fabric are solved; and a brand new technical path is provided for sustainable development of high-performance synthetic fibers.

An inkjet ink includes: a pigment, 3-methyl-1,5-pentanediol, triethylene glycol monobutyl ether, trimethylolpropane; a pigment dispersion resin, and water.

The invention provides an ultrahigh-base-number composite calcium salt detergent, a preparation method thereof and a lubricating oil complexing agent. The preparation method comprises the following steps: mixing solvent oil, base oil, an accelerant A, an accelerant B, sulfonic acid, salicylic acid, first inorganic calcium and an accelerant C for neutralization reaction; carbon dioxide is introduced, second inorganic calcium and water are added for a carbonation reaction, a product is purified after the reaction is finished, and the composite calcium salt detergent is obtained; the accelerant B is selected from a combination of two or more than three of polyisobutylene succinic anhydride, dodecenyl succinic anhydride, polymethacrylate, trimethylolpropane isooctoate, alkylphenol formaldehyde resin and benzylamine. The composite calcium salt detergent disclosed by the invention has the advantages of ultrahigh base number and better thermal stability, and can fundamentally improve the problem of precipitation when calcium sulfonate and calcium salicylate are compounded.

To provide an adhesive tape for protecting photomasks used in resin relief printing, which prevents air bubbles from forming when applied to the photomask even when it is a thin film, and facilitates repair work in the event of foreign matter contamination. [Solution] A photomask protective adhesive tape comprising a transparent base film with an adhesive layer on one side and a release layer on the other side, wherein the adhesive layer is a cured product of an adhesive layer composition containing (A) an acrylic acid ester polymer, (B) a crosslinking agent, and (C) an oil having trimethylolpropane fatty acid triester, and the solid content of the adhesive layer contains 0.1 to 5% by weight of component (C).

The application belongs to the technical field of adhesives, and relates to a solvent type single-component polyurethane resin and a preparation method thereof, the solvent type single-component polyurethane resin comprising the following components in parts by weight: isocyanate 15-25 parts; macromolecular polyol 25-35 parts; addition modifier 20-30 parts; small molecule chain extender 5-10 parts; catalyst 0.05-0.3 parts; and solvent 55-65 parts. The application introduces an addition modifier, the addition modifier being formed by reacting 2,4-toluene diisocyanate and trimethylolpropane under specific conditions, and the addition modifier being helpful to improving the water resistance, alcohol resistance and easy coloring performance of the product, and interacting with other components to make the solvent type single-component polyurethane resin have excellent water resistance, alcohol resistance and coloring stability.

The application discloses a one-step forming polyurethane synthetic leather and a polyurethane surface layer resin thereof, and belongs to the field of polyurethane synthetic leather. The polyurethane surface layer resin comprises the following raw materials: polyester polyol, polyether polyol PPG, polyether polyol PTMG, ethylene glycol, 1,4-butanediol, trimethylolpropane, toluene diisocyanate, diphenyl methane diisocyanate, modified glue particle, solvent and additive. The application limits the composition of the raw materials of the polyurethane synthetic leather and adopts a specific forming process, so that the prepared polyurethane synthetic leather is smooth in surface and free of defects such as fish eyes and pinholes, and has excellent softness and wear resistance. In the application, the raw material composition of the solid glue particle is limited, the polyurethane surface layer resin is modified, the prepared polyurethane synthetic leather does not need to be combined with other coating layers, and excellent softness and wear resistance can be achieved.

The invention discloses high-magnetic-induction oriented silicon steel rolling oil which comprises the following components in parts by weight: 70-90 parts of synthetic ester, 5-15 parts of white oil, 5-10 parts of a lubricating additive, 2-5 parts of an emulsifier, 0.5-2 parts of an antioxidant and 1-3 parts of an anti-rust additive. The synthetic ester is selected from any one of trimethylolpropane coconut oleate, butyl stearate, trimethylolpropane oleate or trimethylolpropane triisostearate, and the emulsifier is composed of a cationic surfactant and a nonionic surfactant in a mass ratio of (1-1.5): 1. Compared with traditional rolling oil, the rolling oil provided by the invention adopts a brand new combination of the emulsifier and the dispersant, the stability and dispersion performance of the rolling oil during emulsification use are improved, the obtained rolling oil emulsion is stable and wide in applicable pH range, and the rolling oil also has excellent lubricating and anti-rust performance, is low in cost and is suitable for large-scale popularization.