91 results about "Dipropylene glycol" patented technology

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 invention discloses a composition for enhancing cooling feeling and a preparation method and application thereof, and belongs to the technical field of cosmetics. The technical problem to be solved is to provide the composition capable of remarkably enhancing the cool feeling. The composition comprises the following raw materials: a mixture of a butterflybush flower extract, cyclodextrin and dipropylene glycol in a mass ratio of (1-5): (30-60): (35-65). And by combining with cooling factors such as menthol, the cooling feeling and durability can be remarkably improved, and the irritation is remarkably reduced. According to the key point of the technical scheme, the composition for increasing the cooling feeling is prepared from a butterflybush flower extract, cyclodextrin and dipropylene glycol.

The application discloses a high-protection water-based outdoor wood one-coat paint and a preparation method thereof, and belongs to the field of paints. The method comprises the following steps: adding water-based acrylic resin and high-flexibility fluorine-containing acrylic emulsion into a paint mixing kettle and uniformly stirring; then adding dipropylene glycol methyl ether, dipropylene glycol butyl ether, a base material wetting agent, a defoaming agent, a scratch-resistant additive, and water into a batching kettle to obtain a dispersed mixed solution; mixing the dispersed mixed solution, modified nano cerium oxide-silicon nitride compound slurry and water-based titanium white paste again, adding micro-fine silica aerogel powder after mixing, adding isothiazolinone bactericide and tannin acid inhibitor after fine dispersion, mixing again, filtering the product after adjusting the system viscosity by adding an associated polyurethane thickening agent, and obtaining the high-protection water-based outdoor wood one-coat paint.

This invention relates to the field of catalyst technology, and in particular to a MgO nanocluster catalyst, its preparation method, and its application. The preparation method of the MgO nanocluster catalyst involves adding magnesium salt and long-chain diol to a solvent, and then adding a surfactant dropwise. Under heating conditions, the MgO nanocluster catalyst forms a catalyst. Due to its size-driven surface effect, the MgO nanocluster catalyst possesses a large number of oxygen vacancies and low-coordination sites, forming strongly basic catalytic active centers. The MgO nanocluster catalyst is applied to the preparation of dipropylene glycol ethers. Using propylene oxide and alcohol as raw materials, a two-stage series reactor packed with the MgO nanocluster catalyst is used for the reaction. The use of the MgO nanocluster catalyst effectively improves the conversion rate of propylene oxide and the selectivity of primary ethers. Its nanocluster structure makes it easy to separate from the product by physical methods, overcoming the difficulties of traditional heterogeneous catalysts and product separation, significantly improving production efficiency, and showing good industrial application prospects.

The invention belongs to the technical field of metal anti-rust treatment, and particularly relates to an environment-friendly water-based anti-rust composition as well as a preparation method and application thereof. The composition is prepared from the following components in parts by weight: 3 to 8 parts of a first triazine compound, 1 to 5 parts of a second triazine compound, 10 to 20 parts of 2-amino-2-methyl-1, 3-propylene glycol, 2 to 5 parts of dipropylene glycol monomethyl ether and 65 to 85 parts of water, the first triazine compound is a triazine compound with a substituent group containing a hydrophobic chain segment and at least two amino carboxylic acid substituent groups, and the second triazine compound is a triazine compound with a sulfydryl substituent group. The coordination bond and covalent bond dual anchoring protective film is formed on the metal surface through the two triazine compounds, the excellent salt mist resistance, humidity and heat resistance and film forming compactness are achieved, the salt mist test time reaches 72 hours, the humidity and heat test time reaches 960 hours, the adhesive force is 0 grade, and nitrite, phosphate and heavy metal are not contained. The preparation method is simple and convenient, is suitable for industrial production, and can be widely applied to metal anti-rust treatment in the fields of mechanical manufacturing, automobile parts and the like.

The invention discloses an anti-aging and skin-tendering composition and a preparation method thereof. The anti-aging and skin-tendering composition comprises glycerin, dipropylene glycol, trehalose, a cynomorium songaricum extract, acetyl tetrapeptide-11, palmitoyl tripeptide-38, sodium hyaluronate, caprylic / capric triglyceride, isononyl isononanoate, phytosterol, meadowfoam seed oil, an emulsifier, a thickening stabilizer, superoxide dismutase, fullerene, ergothioneine, an osmotic regulator and a pH regulator. A preservative and deionized water. An existing formula system is completely abandoned, brand-new core functional components are introduced, the design of constructing a complete channel of telomere protection, signal activation, oxidation resistance, barrier repair and energy supplement to cooperate with aging resistance is adopted, the multiple aging resisting, repairing and skin tendering effects are achieved, and the skin tendering effect is achieved. The excellent effects of resisting wrinkles, lifting, moisturizing and improving the skin quality are realized, and the product is stable and safe.

The application provides a low-deuterium water red ginseng and rhodiola compound mask as well as a preparation method and application thereof, and belongs to the technical field of cosmetics. The low-deuterium water red ginseng and rhodiola compound mask provided by the application comprises the following raw materials: a red ginseng and rhodiola compound, low-deuterium water, hydroxyethyl cellulose, carbomer-980, carbomer-981, panthenol, 1,2-hexanediol, p-hydroxyphenylacetone, glycerol, dipropylene glycol, beta-glucan, sodium alginate, disodium EDTA, betaine, allantoin, 1,3-butanediol, PEG-40 hydrogenated castor oil and tromethamine; the red ginseng and rhodiola compound is composed of red ginseng extract and rhodiola extract. The low-deuterium water red ginseng and rhodiola compound mask provided by the application has the effects of antioxidation, whitening and anti-photoaging, and can realize synergistic whitening and anti-photoaging.

The invention relates to the technical field of waterborne polyurethane coatings, and discloses a two-component high-wear-resistance waterborne polyurethane coating for paper package surface protection and a preparation method thereof. The water-based paint comprises the following components in percentage by adding: 20% of water-based matte polyurethane, 30% of a water-based acrylic polymer, 45% of water-based bright polyurethane, 0.5% of dimethylethanolamine, 0.3% of a water-based organic silicon defoaming agent, 1.5% of pasty ultra-high molecular weight polydimethylsiloxane dispersion liquid, 0.2% of a water-based organic silicon flatting agent, 2% of dipropylene glycol butyl ether, 0.2% of an organic tin drier and 0.2% of a Digao TEGO WET 270 base material wetting agent. And 0.4% of a polyether polyurethane associated rheological additive with 25% of active parts. The problems that a traditional paper package surface protection technology is long in degradation period, poor in environmental protection property and low in quality are effectively solved.

The present invention relates to two-component composition for preparing polyurethane,PU foam wound dressing, said composition comprising a first polyol-based mixture component comprising a polyether polyol comprising high-reactivity-capped polyether triol, water, a tertiary amine catalyst in a solution of dipropylene glycol, an emulsifier and pH buffer, a curing agent with a bi-functional organic compound, a foaming agent, a delayed-action blowing catalyst, and a silicone co-surfactant, and copper and chitosan and a second prepolymer based component comprising diphenyl methane diisocyanate,MDI-based prepolymers, characterized in that, said PU foam wound dressing is infused with copper and chitosan as antimicrobial agents.

The invention provides a water-based electrosilvering coating for an automobile hub and a preparation method of the water-based electrosilvering coating, and belongs to the technical field of paints.The preparation method of the coating comprises the following preparation steps that deionized water, a dispersing agent, a water-based hydroxyl acrylic acid dispersion, a defoaming agent, a flatting agent and dipropylene glycol monobutyl ether are evenly mixed, pH is adjusted, and a premixed resin material is obtained; the preparation method comprises the following steps: mixing an ethanol solution with cyanomethyl [3-(trimethoxysilyl) propyl] trithiocarbonate, adding glacial acetic acid and water-based aluminum paste, stirring, filtering, washing, dispersing in deionized water, adding a sulfobetaine methacrylate monomer and potassium persulfate, heating, reacting, cooling, filtering, washing, mixing with deionized water, and drying to obtain the water-based aluminum silver paste. Modified water-based aluminum paste is obtained; and mixing and stirring the premixed resin material and the modified water-based aluminum paste, adjusting the viscosity and pH of the paste, filtering, standing and curing to obtain the water-based electrosilvering coating for the automobile hub. A coating prepared from the coating has good hardness and corrosion resistance.

This invention belongs to the field of metal rust prevention technology, specifically relating to an environmentally friendly water-based rust-preventive composition, its preparation method, and its application. The composition comprises, by weight, 3-8 parts of a first triazine compound, 1-5 parts of a second triazine compound, 10-20 parts of 2-amino-2-methyl-1,3-propanediol, 2-5 parts of dipropylene glycol monomethyl ether, and 65-85 parts of water. The first triazine compound is a triazine compound having substituents containing hydrophobic segments and at least two aminocarboxylic acid substituents, and the second triazine compound is a triazine compound having thiol substituents. This invention forms a dual-anchored protective film on the metal surface through the two triazine compounds, exhibiting excellent salt spray resistance, damp heat resistance, and film density. It achieves a salt spray test duration of 72 hours, a damp heat test duration of 960 hours, and an adhesion rating of 0. Furthermore, it is free of nitrites, phosphates, and heavy metals. The preparation method is simple, suitable for industrial production, and can be widely applied to metal rust prevention in machinery manufacturing, automotive parts, and other fields.

The application discloses a long-acting makeup holding foundation liquid, which comprises water, titanium dioxide, hydrogenated polydecene, isododecane, isohexadecane, dimethicone, caprylic acid / capric acid triglyceride, dipropylene glycol, silica, polyglyceryl-2 dipolyhydroxystearate, synthetic fluorphlogopite, polymethylsilsesquioxane, a film forming agent, magnesium sulfate, cetyl PEG / PPG-10 / 1 dimethicone, lithium montmorillonite, triethoxysilane, ethanol, dimethicone / vinyl dimethicone crosspolymer, alumina, dimethiconol, collagen, natural extract, a colorant, a moisturizing agent and trace additives. The long-acting makeup holding foundation liquid has reliable water supplementing and moisturizing and oil control effects, can selectively absorb and control oil, has reliable skin friendliness, can reliably protect makeup of oily skin, and avoids the problem of makeup removal caused by facial oil secretion.

The invention provides a composition capable of improving the antisepsis effect of phenoxyethanol on fungi. The composition comprises the following components in percentage by weight: 1.5-10% of dipropylene glycol butyl ether; 0.2 to 1 wt% of phenoxyethanol; and a carrier acceptable in the field of home-cleaning products. The invention further relates to application of the composition capable of improving the fungus preservative effect of the phenoxyethanol in preparation of a home detergent product with a bacteriostatic effect.

The application provides a water-oil double-layer penetration-promoting cosmetic composition and a preparation method thereof, and relates to the cosmetic field. The raw materials of the water-oil double-layer penetration-promoting cosmetic composition include 5-30% of an oil phase and 70-95% of an aqueous phase according to a total mass of 100%. The raw materials of the aqueous phase include dipropylene glycol, glycerol glucoside and water. The raw materials of the oil phase include caprylic capric triglyceride and isosorbide dioctanoate. The isosorbide dioctanoate in the water-oil double-layer penetration-promoting cosmetic composition constructs a lipid microchannel, the dipropylene glycol enhances the hydration of the stratum corneum, and the glycerol glucoside activates AQP3 water channel protein. The three channels synergistically improve the penetration efficiency without damaging the integrity of the skin barrier. The penetration-promoting agent has strong broad-spectrum penetration-promoting ability for different polar functional ingredients, the penetration-promoting effect is stable, and the penetration-promoting agent can be stably distributed in the oil and water phases.

The application belongs to the technical field of pavement marking paint, and particularly relates to a bio-based two-component polyurethane pavement marking material, a preparation method and application. The bio-based two-component polyurethane pavement marking material is prepared by matching the components in the A component and the B component. The A component comprises bio-based polyether polyol, bio-based polyester polyol, acrylic resin, bisphenol A epoxy resin, a catalyst, a film forming agent, a film forming aid, pigments and fillers. The B component comprises aliphatic isocyanate and a cosolvent. The bio-based two-component polyurethane pavement marking material can be used for pavement marking, especially, the film forming aid matched with the dipropylene glycol butyl ether film forming agent in the whole system can improve the film forming performance to some extent, and the performance such as toughness and adhesion is improved, especially, the film forming time is greatly improved, and the bio-based two-component polyurethane pavement marking material is more suitable for pavement marking in emergency.

The invention relates to the field of flame retardants, and particularly discloses a multi-layer coated ceramic flame retardant as well as a preparation method and application thereof. The invention relates to a preparation method of a multilayer coated ceramic flame retardant, which comprises the following steps: (1) adding alkyl phosphate diethanolamine salt into water, and uniformly stirring to prepare a mixed solution; (2) adding wollastonite fibers into the mixed solution, and uniformly stirring to obtain a blended solution; (3) filtering, drying and grinding the blended solution to obtain mixed powder; and (4) adding the mixed powder into dipropylene glycol dimethyl ether, uniformly stirring, adding fatty alcohol-polyoxyethylene ether phosphate and boron phosphide, uniformly stirring, filtering, drying, and crushing to obtain the multilayer coated ceramic flame retardant. The multilayer coated ceramic flame retardant can be used for wire and cable materials, and has the advantages of good flame retardant property and high ceramic body strength after ceramization; in addition, the preparation method provided by the invention has the advantages that the flame retardant is easy to disperse and the flame retardant property is outstanding.

The embodiment of the application discloses a kind of bio-based water-based peelable polyurethane resin and its preparation method and application, belong to textile printing technical field.A kind of bio-based water-based peelable polyurethane resin, by weight fraction, its raw material is: bio-based polyol 15-20 parts, isophorone diisocyanate 20-30 parts, bio-based emulsifier 5-10 parts, 1,4-butanediol 3-5 parts, dipropylene glycol dimethyl ether 3-8 parts, dibutyl tin laurate 0.5-2 parts, double end hydroxyl poly (N-isopropyl acrylamide) 5-10 parts, triethylamine 5-10 parts, deionized water 30-50 parts, paraffin-based polyurethane microcapsule 10-15 parts.The water-based polyurethane resin of the application has good stability, strong film-forming property, the coating prepared has high cohesive strength and sufficient toughness at room temperature, can resist embroidery printing mechanical stress, is easy to remove by temperature change mechanism when peeling, and is especially suitable for processing of high-grade, easily damaged textiles such as silk, chiffon, elastic knitted fabric, etc.

This invention belongs to the field of new materials for daily chemical products and discloses a single-component aerosol foundation spray, comprising a propellant and a water-in-oil emulsion. The total weight of the water-in-oil emulsion is 100 wt%, and the emulsion contains the following components: dipropylene glycol 6-8 wt%; 1,2-hexanediol 0.6-1 wt%; isomeric oligosaccharides 2-3 wt%; trimethylsiloxysilicate 1.5-2 wt%; VP / hexadecene copolymer 1.5-2.5 wt%; dual-terminated vinyl polyether silicone oil 0.5-0.7 wt%; inorganic salt content less than 0.2 wt%; and an appropriate amount of emulsifier. The single-component aerosol foundation spray of this invention has comprehensive advantages such as smooth spraying, excellent low-temperature stability, and superior film-forming effect.

The invention discloses a cleaning agent for cleaning a nickel-plated battery shell and a preparation method of the cleaning agent, and belongs to the technical field of cleaning agents. The cleaning agent is prepared by compounding 30-80 parts by mass of a hydrocarbon solvent, 10-30 parts by mass of an alcohol ether solvent, 2-10 parts by mass of a surfactant, 1-5 parts by mass of a penetrant and 0.2-3 parts by mass of a self-made auxiliary agent. Wherein the self-made auxiliary agent is prepared from isooctyl alcohol, cyclohexanol, triethanolamine, dodecanedioic acid and dipropylene glycol butyl ether according to a specific proportion and a reaction process, and organic amine salt with surface activity and a corrosion inhibition function is generated in a system. The cleaning agent can synchronously and efficiently remove polar and non-polar pollutants on the surface of a nickel-plated battery shell through the synergistic effect of all the components, and can deeply penetrate into micropore gaps to complete precise cleaning by means of the ultralow surface tension of the fluorocarbon penetrant, meanwhile, a protective film is formed on the surface of a nickel-plated layer, and zero damage in the cleaning process is achieved. The product is good in stability, high in environmental protection property, simple and convenient in preparation method and suitable for industrial production.

The present invention relates to a urethane (meth)acrylate, resulting from the reaction of at least one caprolactone-diol obtained from the reaction of caprolactone and dipropylene glycol, at least one polyisocyanate, and at least one hydroxy-functional (meth)acrylate. The present invention also relates to curable composition comprising such urethane (meth)acrylate, as well as the use of the curable compositions as coating compositions, sealant compositions, molding compositions, dental compositions, composite material compositions or 3D printing compositions.

The invention relates to the technical field of daily chemical industry, and discloses a VC and VE permeability improving method based on multi-mechanism cooperation and application. The invention relates to a biomimetic channel cleaning agent, which is prepared from the following raw material components in parts by weight: 10.0 to 20.0 parts of ascorbic acid, 0.5 to 2.0 parts of tocopheryl acetate, 3.0 to 8.0 parts of dual-responsiveness amphiphilic block copolymers, 0.3 to 1.5 parts of biomimetic channel dredging agents, 30.0 to 45.0 parts of dipropylene glycol, 2.0 to 5.0 parts of ethyoxyl diethylene glycol, 3.0 to 6.0 parts of PEG-7 glyceryl cocoate, 0.5 to 1.0 part of preservatives and the balance of water. A release switch sensitive to pH value and specific enzyme is constructed through a phenylboronic acid monomer containing an enzyme digestion connecting arm, ascorbic acid is mounted on a carrier through a boric acid ester bond, ineffective loss of active ingredients on the skin surface is effectively avoided, and bioavailability and targeting are remarkably improved.

The concrete additive is prepared from the following raw materials in parts by weight: modified red mud, wheat orange ash, nano silicon carbide, graphite, composite fibers, a super plasticizer, dipropylene glycol, waterborne polyurethane, a high-efficiency water reducing agent, a high-efficiency retarder and a fiber dispersant. The composite fiber is a mixture of towel gourd fiber, palm fiber and carbon fiber; the red mud is doped into concrete to prepare the high-ground-temperature tunnel lining concrete, all the raw materials are matched with one another, the red mud is matched with the nanometer silicon carbide and the graphite to achieve the micro-filling and macro-reinforcing effects, and the mechanical property and durability of the concrete are improved through cooperation of the three materials; a fiber network formed through interaction among the composite fibers can block a heat transfer path and reduce the heat conduction performance of the concrete, and the composite fibers complement each other in physical properties and mechanical properties through microcrack blocking, bridging effect and rigidity complementation, so that the crack resistance, toughness and impact resistance of the concrete are improved.

This invention, entitled "A Xanthohumulin Microcapsule, Its Preparation Method, and Its Application," belongs to the field of cosmetic technology. The technical problem to be solved is to provide a xanthohumulin microcapsule with higher stability, better encapsulation effect, simpler operation, and higher cost-effectiveness. The key technical points are: a xanthohumulin microcapsule, characterized in that the raw materials for preparing the xanthohumulin microcapsule include: xanthohumulin, component A, component B, and dipropylene glycol; the mass ratio of xanthohumulin to component A and component B is 0.01-1:0.25:0.075-0.5; component A is whey protein or whey protein peptide; and component B is chitosan hydrochloride.

The invention provides an outdoor high-hardness wear-resistant water-based finishing material and a preparation method thereof. The outdoor high-hardness wear-resistant water-based finishing material is prepared from a component A and a component B according to a weight ratio of 2: 1, the component A is prepared from the following raw materials in parts by weight: 25 to 35 parts of water-based fluorine modified hydroxy acrylic acid dispersion, 15 to 20 parts of water-based organic silicon-acrylic acid hybrid emulsion, 3 to 5 parts of silane coupling agent modified nano SiO dispersion liquid, 4 to 6 parts of dipropylene glycol butyl ether, 0.3 to 0.6 part of water-based polyether modified organic silicon flatting agent and 0.4 to 0.7 part of mineral oil water-based defoaming agent; 8 to 12 parts of deionized water; the component B is prepared from the following raw materials in parts by weight: 40 to 50 parts of aliphatic aqueous isocyanate dispersion, 8 to 12 parts of aqueous polyurethane toughening dispersion, 0.5 to 1 part of 2-amino-2-methyl-1-propanol and 15 to 20 parts of deionized water. The outdoor high-hardness wear-resistant water-based finishing material has the beneficial effects that the outdoor high-hardness wear-resistant water-based finishing material is good in wear resistance, long in service life, quick to dry and form, good in environmental protection performance, hydrophobic, anti-fouling and easy to clean, and the contact angle is greater than 140 degrees.

The invention relates to alcohol-free perfume and a preparation method thereof, and belongs to the technical field of daily chemicals. The perfume is composed of an essence composition and an alcohol-free solvent matrix. Wherein the essence composition is prepared from distilled chamomile essential oil and L-citronellol, the essence composition is prepared from lavender essential oil, sandalwood oil and iris absolute oil, the camphor of the lavender essential oil is removed through molecular distillation, the sandalwood oil and the iris absolute oil are subjected to antioxidant treatment, and the essence composition is prepared from cedarwood oil, benzoin resin and ambergris ether, the high-sensitization sesquiterpene of the cedarwood oil is removed through fractionation. The alcohol-free solvent matrix is formed by compounding caprylic / capric triglyceride, dipropylene glycol and ethylhexylglycerin. According to the invention, natural perfume is carefully selected and treated, a synergistic low-sensitivity essence framework is constructed, and the mild solvent is utilized, so that the stimulation of alcohol and common allergens is avoided, excellent fragrance quality and lasting fragrance are ensured, and meanwhile, the essence has extremely high safety and friendliness to sensitive skin.

The present invention relates to the use of a specific agent, dipropylene glycol monomethyl ether, for purifying a biomaterial, a purification method using dipropylene glycol monomethyl ether, and a biomaterial obtained from said purification method.

The invention relates to the technical field of plant extract preparation, in particular to a citrus chachiensis hortorum extract with an anti-oxidation effect and a preparation method and application thereof.The preparation method comprises the following steps that citrus chachiensis hortorum powder and dipropylene glycol are mixed and homogenized for 20-30 min under the condition of 3500-4000 r / min, and a primary homogenized mixture is obtained; adding dipropylene glycol into the primarily homogenized mixture, and homogenizing for 20-30 minutes under the condition of 3500-4000 r / min to obtain a secondarily homogenized mixture; adding purified water into the secondarily homogenized mixture, and homogenizing for 30-35 minutes under the condition of 4000-4500 r / min to obtain a homogenized mixed solution; performing primary filtration, water bath extraction and secondary filtration on the homogeneous mixed solution to obtain a citrus chachiensis hortorum extract; the process is simple, the cost is low, the component dissolution rate is high, the antioxidant activity is strong, the batch is stable, and large-scale industrial production is easy to realize.

The invention discloses a moisturizing and soothing composition containing algae and fungus fermentation products as well as a preparation method and application of the moisturizing and soothing composition. The composition is prepared from the following components in percentage by mass: 70 to 80 percent of lotus water, 0.5 to 1.5 percent of tremella fuciformis extract, 0.5 to 1.5 percent of yeast beta-glucan, 1 to 3 percent of 1, 2-hexanediol, 0.1 to 1 percent of dipropylene glycol, 0.1 to 0.5 percent of saccharomycetes / laminarin fermentation product and the balance of butanediol. The core components of the composition comprise lotus water, a yeast / laminarin fermentation product, a compound tremella fuciformis extract and yeast beta-glucan for enhancing the skin barrier function. High-content lotus water is used as a natural solvent, and butanediol and dipropylene glycol are combined to optimize the stability and permeability of active ingredients; 1, 2-hexanediol provides a mild preservative effect, so that the dependence of a traditional preservative is reduced. The composition can effectively scavenge free radicals and improve skin problems caused by photoaging, is suitable for post-medical repair and daily anti-aging care, and has the characteristics of low irritation, high biocompatibility and the like.

The application relates to the technical field of three-proofing paint, in particular to a repairable high-thermal-conductivity nano-composite three-proofing paint as well as a preparation method and application thereof. The repairable high-thermal-conductivity nano-composite three-proofing paint comprises the following components in parts by weight: 50-60 parts of modified organic silicon-epoxy hybrid resin, 8-12 parts of alkylated nano boron nitride, 5-8 parts of alkylated nano silicon dioxide, 3-5 parts of star-shaped furan-maleimide-furan crosslinking agent, 1-1.5 parts of microcapsule imidazole, 0.1-0.5 parts of sulfonium salt, and high-boiling-point solvent, which is supplemented to 100 parts; the high-boiling-point solvent comprises at least one of propylene glycol methyl ether acetate and dipropylene glycol dimethyl ether. The application realizes breakthrough of the traditional three-proofing paint thickness coating limitation under low thickness through the following mutual cooperation: the modified organic silicon-epoxy hybrid resin forms a dense film, the nano filler is composite and enhanced, and the reversible crosslinking structure is repairable, and the application is suitable for high-reliability protection scenes of precision electronic devices.

The invention discloses a whitening composition based on arbutin and nicotinamide and a preparation method thereof, and belongs to the technical field of cosmetics, the preparation method comprises the following steps: dispersing sodium alginate in hot water under high-temperature shearing, and hydrating to obtain a glue solution A; dissolving nicotinamide, alpha-arbutin, inositol and caprylyl glycol in dipropylene glycol to obtain a solution B; performing dry mixing on beta-1, 3-glucan and sodium polyglutamate, and performing high-speed shearing in hot water to obtain slurry C; cooling the slurry C, mixing with the solution B, and adding the glue solution A; and finally, standing and aging the system at 4 DEG C, spraying a trace calcium chloride ethanol solution for several times to induce the formation of a gel network, and adjusting the pH value. The technical problems that alpha-arbutin is easy to hydrolyze and inactivate and nicotinamide is high in irritation are successfully solved through a unique low-temperature ionic cross-linking gel process, the obtained product is excellent in stability, has a slow-release synergistic effect, can achieve a mild and efficient whitening effect without adding a chemical penetration enhancer, and can be applied to skin care products such as essence and ampoules.