305 results about "Dibenzoyl Peroxide" patented technology

The invention provides a degradable environment-friendly packaging material and a preparation process thereof, and belongs to the technical field of packaging materials. The preparation method comprises the following steps: preparing the modified nano montmorillonite; preparing a composite antibacterial additive; preparing a barrier additive; and preparing the degradable environment-friendly packaging material. The preparation method comprises the following steps: by taking methacrylic acid (2-dimethylaminoethyl) ester and acrylic acid as raw materials, modifying nano-montmorillonite under the initiation of benzoyl peroxide, performing quaternary ammonium salinization, and performing in-situ synthesis of nano-zinc oxide on the surface of the quaternary ammonium salinized montmorillonite through a hydrothermal reaction to prepare the composite antibacterial additive. When the composite antibacterial additive is added into polylactic acid to prepare a packaging material, the growth of various microorganisms such as bacteria and fungi can be effectively inhibited, the packaging material is endowed with strong antibacterial protection capability, and the composite antibacterial additive has a more lasting antibacterial effect so as to prolong the antibacterial validity period of the packaging material.

The invention discloses a high-strength polyethylene film and a preparation method thereof, and relates to the technical field of high polymer materials. The invention discloses a high-strength polyethylene film. The high-density polyethylene composite material is prepared from the following raw materials in parts by weight: 35 to 45 parts of high-density polyethylene, 25 to 35 parts of linear low-density polyethylene, 12 to 18 parts of ethylene-vinyl acetate copolymer, 5 to 10 parts of nano silicon dioxide, 3 to 7 parts of organic montmorillonite, 1.5 to 3.5 parts of hindered amine light stabilizer, 1.5 to 2.5 parts of antioxidant 1010, 0.8 to 1.2 parts of calcium stearate, 0.8 to 1.2 parts of zinc stearate, 0.8 to 1.2 parts of silane coupling agent and 4 to 6 parts of maleic anhydride grafted polyethylene. The composite material is prepared from the following components in parts by weight: 1.5-3.5 parts of a quaternized chitosan-nano silver compound, 6-9 parts of a modified toughening agent, 4-7 parts of a modified heat-resistant agent, 1.5-3.5 parts of a processing aid, 0.15-0.35 part of dibenzoyl peroxide and 0.5-1.5 parts of a nucleating agent DBS. The composite material is excellent in comprehensive performance, high in strength, good in flexibility and puncture resistance, excellent in aging resistance, heat resistance, chemical resistance and antibacterial property, good in processability, capable of meeting the requirements of multiple fields such as packaging and agriculture, scientific in preparation method and high in practical value.

The invention discloses unsaturated polyester resin for an unmanned aerial vehicle fuselage and a preparation method of the unsaturated polyester resin, and relates to the field of high polymer materials. When the unsaturated polyester resin for the unmanned aerial vehicle fuselage is prepared, a flame-retardant monomer reacts with 2-hydroxy-5-(hydroxymethyl) benzaldehyde to prepare a modified flame-retardant monomer; reacting cellulose with acrylic acid to obtain pre-modified cellulose; the pre-modified cellulose, 1-allyl-1, 1, 3, 3-tetramethyldisiloxane and chloroplatinic acid are subjected to a reaction, and modified cellulose is prepared; maleic anhydride, 5-(1H-imidazole-1-yl)-1, 3-phthalic acid, propylene glycol and the modified flame-retardant monomer are subjected to a reaction, and pre-polyester is prepared; and stirring the pre-polyester, zinc chloride, modified cellulose, benzophenone peroxide and styrene to obtain the anti-aging coating. The prepared unsaturated polyester resin for the unmanned aerial vehicle fuselage has good anti-aging, self-repairing, flame-retardant and self-cleaning performance.

The invention relates to the field of copper-clad plates, and discloses a low-dielectric-constant high-performance copper-clad plate and a preparation method thereof.The preparation method comprises the specific steps that epoxy resin, phenolic resin, polyphenyl ether modified resin, modified nano silicon dioxide and the like are taken and mixed to obtain a resin glue solution; impregnating glass fabric in the resin glue solution to obtain a prepreg; laminating prepregs, and covering copper foil for hot pressing; the polyphenyl ether modified resin comprises epoxy resin, diallyl cyanate and fluorine-containing polyphenyl ether resin prepared by reaction of polyphenyl ether, bisphenol AF and benzoyl peroxide; the modified nano silicon dioxide is prepared by reacting allyl glycidyl ether, vinyltriethoxysilane and phenyltris (dimethylsiloxane) silane, then grafting with a phosphorus-containing intermediate to prepare a modified additive, and grafting with nano silicon dioxide, and the phosphorus-containing intermediate is prepared by reacting phenylphosphoryl dichloride and eugenol. The copper-clad plate with high flame retardance, high peel strength, heat resistance and low dielectric constant is prepared.

The invention relates to the technical field of ABS (Acrylonitrile Butadiene Styrene) materials, in particular to an impact-resistant composite ABS plate and a preparation method thereof. The impact-resistant composite ABS plate is prepared from the following raw materials in parts by mass: 100 to 200 parts of emulsion ABS resin, 10 to 20 parts of butadiene monomer, 5 to 10 parts of methyl methacrylate, 1 to 5 parts of glycidyl acrylate, 1 to 5 parts of maleic anhydride, 5 to 15 parts of styrene, 1 to 5 parts of aminated silicon dioxide, 0.1 to 0.5 part of benzoyl peroxide, 0.1 to 0.3 part of triethylamine, 0.1 to 1 part of emulsifier and 0.01 to 0.1 part of first initiator, 0.05-0.2 part of a second initiator, 1-3 parts of oxidized polyethlene wax, 1-2 parts of a lubricant and 1-3 parts of an antioxidant. The invention solves the contradiction between the heat resistance and impact strength of the ABS resin, has obvious advantages compared with the traditional modification system, and completely meets the application requirements of the plate in a high-temperature vibration environment.

The invention relates to the technical field of high polymer materials, and discloses a high-durability pressure-sensitive adhesive with low VOCs release and a preparation method thereof.The high-durability pressure-sensitive adhesive is prepared from, by weight, 50-80 parts of acrylate copolymer, 0.5-5 parts of cross-linking agent, 10-30 parts of tackifying resin, 1-10 parts of inorganic filler, 0.1-2 parts of antioxidant and 20-50 parts of solvent. Wherein the tackifying resin is at least one of hydrogenated petroleum resin and glycerol ester of rosin, and the inorganic filler is one of nanoscale silicon dioxide and calcium carbonate. Butyl acrylate is used as a main monomer, 2-ethylhexyl acrylate is used as a comonomer, acrylic acid is used as a functional monomer, benzoyl peroxide is used as an initiator, free radical polymerization is carried out at the temperature of 60-85 DEG C under the protection of nitrogen for 4-8 hours, and a copolymer chain with the molecular weight distribution index (PDI) smaller than or equal to 2.5 is formed, so that the viscosity and elasticity of colloid can be balanced; the peeling strength and the weather resistance are improved, and the colloid is prevented from being too soft or embrittled.

The invention discloses a macroporous resin material and a preparation method thereof, and macroporous resin with high specific surface area and excellent adsorption performance is obtained through a specific modified acrylate polymeric monomer and a preparation method of the macroporous resin material. The method comprises the following steps: reacting quercetin, methyl vanillate and acryloyl chloride to prepare a modified acrylate polymeric monomer, mixing the modified acrylate polymeric monomer with polyvinyl alcohol, ethylene glycol dimethacrylate, dodecanol, benzoyl peroxide and the like, and carrying out suspension polymerization to prepare the macroporous resin material. The prepared macroporous resin material has excellent performance in the aspects of pore structure, polarity and the like, can be widely applied to the related fields of adsorption separation and the like, and provides a new thought and method for research and development of the macroporous resin material.

The invention relates to a counter hot melt adhesive material with high viscosity, and belongs to the technical field of hot melt adhesives. The counter hot melt adhesive material with high viscosity provided by the invention is prepared from the following raw materials in parts by weight: 41.5 to 42.5 parts of TPU, 55.5 to 56.5 parts of EVA and 1 to 3 parts of functional aids, and the functional aids comprise POE-g-MAH, a tackifying system, nano boron nitride with the surface grafted with a silane coupling agent, an antioxidant 1076, dibenzoyl peroxide, epoxy-terminated silicone oil and white mineral oil. According to the counter hot melt adhesive material provided by the invention, all the components cooperate with one another, so that the counter hot melt adhesive material can still keep relatively high viscosity in a humid and hot environment, and the requirements of practical application are met.

The invention discloses a preparation method of ulinastatin adsorption resin, and belongs to the technical field of adsorption resin. Comprising the following steps: (1) preparing a water phase: adding pure water, gelatin, cellulose, sodium chloride and lignin into a reaction kettle until the materials are fully dissolved; (2) preparing an oil phase, wherein the oil phase contains divinylbenzene, methyl acrylate, benzoyl peroxide, tert-butyl peroxy-2-ethylhexanoate, triallyl isocyanurate, tripropanol alkyl trimethacrylate and methylbenzene, and the oil phase is uniformly stirred and mixed with the methylbenzene and the trivinylbenzene, the methyl acrylate, the benzoyl peroxide, the tert-butyl peroxy-2-ethylhexanoate, the triallyl isocyanurate, the tripropanol alkyl trimethacrylate and the methylbenzene; (3) suspension polymerization: putting the oil phase into the water phase, and carrying out staged heating reaction; (4) amination reaction; (5) alkylation reaction; and (6) acid-base alcohol treatment. Compared with the existing resin, the resin disclosed by the invention has the characteristics of high adsorption exchange rate, high desorption rate and high desorption concentration on ulinastatin, and the yield of ulinastatin is increased by 1.17 times compared with that of D215 resin.

The invention discloses an anti-radiation fabric and a preparation method thereof, and relates to the technical field of fabric preparation. When the anti-radiation fabric is prepared, bismuth powder is pre-modified with (3-chloropropyl) trimethoxysilane and then reacts with an anti-aging agent to prepare modified bismuth powder; the preparation method comprises the following steps: enabling 4-aminophenylethanol and 4-(2-ethoxyl) benzaldehyde to react to prepare a flame-retardant monomer, and then enabling the flame-retardant monomer to react with isophorone diisocyanate and 1, 4-butylene glycol to prepare polyurethane; the preparation method comprises the following steps: reacting dimethylallylamine with 1, 3-bis (chloromethyl)-1, 1, 3, 3-tetramethyldisiloxane to obtain an antibacterial cross-linking agent; the modified bismuth powder, N, N-dimethylformamide, polyurethane, an antibacterial cross-linking agent and benzoyl peroxide are mixed to prepare a polyurethane coating, the outer side surface of polyester base cloth is coated with the polyurethane coating, drying is conducted, and the anti-radiation coating fabric is prepared. The anti-radiation fabric prepared by the invention has good anti-radiation, anti-light aging, flame-retardant and antibacterial properties.

The invention provides a drilling fluid flow pattern regulator suitable for Antarctic subglacial drilling and a preparation method and application thereof, and belongs to the technical field of polar region drilling. The flow pattern regulator is prepared from the following raw materials: 4-tert-butyl styrene, carboxylic acid, an acrylate monomer, oleyl alcohol, concentrated sulfuric acid and an initiator. The carboxylic acid is one of ricinoleic acid or phthalic acid; the acrylic ester monomer is one of acrylic acid-2-hydroxyethyl ester or 2-acrylic acid-2-hydroxy-3-phenoxy propyl ester, and the acrylic ester monomer is one of acrylic acid-2-hydroxyethyl ester and 2-acrylic acid-2-hydroxy-3-phenoxy propyl ester; and the initiator is one of azodiisobutyronitrile or benzoyl peroxide. The flow pattern regulator is simple in raw material composition and preparation method and low in cost. The flow pattern regulator can effectively improve the ultralow-temperature rheological property of the drilling fluid, enables the drilling fluid to have the advantages of low viscosity, high dynamic shearing force, chip carrying (ice chips and rock chips), excellent suspension performance and the like at the ultralow temperature, and is suitable for under-ice drilling in the Antarctic pole.

A plugging material is prepared from the following raw materials in terms of mass fractions, which include: 1 to 3.6 parts of PETA-modified bisphenol A epoxy resin, 1.5 to 2.4 parts of addition product of m-phenylenediamine and methacrylic acid, 0.12 to 0.17 parts of nanosilica dispersion liquid, with the remainder being water, such that the sum of the mass fractions of the aforementioned raw materials totals 100 parts. The preparation method includes: pouring a water phase mixture into a continuously stirred oil-phase mixture to form a gel-forming liquid through continued stirring; transferring the gel-forming liquid to be mixed with dibenzoyl peroxide, and stirring and reacting at a temperature of 50° C. to 120° C. to obtain the plugging material. The plugging material is resistant to high temperatures and high salinity, and exhibits strong plugging performance.

The invention relates to the technical field of anti-aging agents, and discloses a preparation method of an anti-aging agent and application of the anti-aging agent in plastics, the anti-aging agent contains styrene groups, and can be well fused and grafted with polyolefin such as polypropylene under the action of an initiator dibenzoyl peroxide or dicumyl peroxide, so that the anti-aging agent has a good anti-aging effect. The influence on the mechanical strength of the polyolefin plastic is very small, and the problem that physical blending can cause great influence on the mechanical strength and the use performance of the plastic can be avoided. Meanwhile, a phenol triazine structure contained in the anti-aging agent has a unique ultraviolet absorption effect, and a hindered amine structure is contained, so that the photo-oxygen degradation reaction of the polyolefin plastic can be inhibited through multiple ways of capturing free radicals and decomposing hydroperoxide, and through an accelerated aging experiment of xenon lamp irradiation, the plastic keeps very high tensile strength, and the anti-aging effect is good. And excellent thermo-oxidative aging resistance and ultraviolet radiation aging resistance are shown.

The invention provides a heat-conducting water-blocking sealant, a preparation method thereof and a photovoltaic module. The heat-conducting and water-blocking sealant is prepared from the following raw materials in parts by mass: 50 to 100 parts of methyl vinyl siloxane, 50 to 100 parts of lignin, 10 to 50 parts of diamond particles and / or diamond alloy particles, 0.5 to 10 parts of a first cross-linking agent, 0.5 to 10 parts of a second cross-linking agent, 0.5 to 5 parts of a coupling agent and 0.05 to 1 part of a catalyst, wherein the first cross-linking agent is prepared from one or more of dicumyl peroxide, benzoyl peroxide, toluene diisocynate and hexamethylene diisocyanate; the second cross-linking agent comprises polymethylhydrosiloxane. The heat-conducting and water-blocking sealant disclosed by the invention has relatively good heat-conducting property, water-blocking property and electrical insulation property.

The invention provides a preparation method of high-impact MBS (methyl methacrylate-butadiene-styrene) resin with a gradient shell structure, which comprises the following steps: adding a butadiene / styrene core, methyl methacrylate, styrene and a proper amount of solvent into a reactor, uniformly mixing, heating to 110-130 DEG C, adding 20-40% of composite initiator, and carrying out polymerization reaction for 0.5-2 hours; cooling to 85-95 DEG C, adding 20-40% of a composite initiator, and continuously reacting for 0.5-2 hours; cooling to 60-70 DEG C, adding the residual composite initiator, and continuously reacting for 2-5 hours; and after the reaction is finished, carrying out post-treatment on the product to obtain the high-impact MBS resin. The composite initiator is composed of azodiisobutyronitrile and benzoyl peroxide, and the benzoyl peroxide accounts for 20-40% of the total amount of the composite initiator. The MBS resin with the gradient shell structure is prepared by adopting a step-by-step polymerization method and controlling the initiation rate, the bottleneck problem of toughness contradiction of the MBS resin with the core-shell structure is solved, and the MBS resin with high light transmittance and super toughness is obtained.

The invention relates to a method for efficiently preparing hydroxylamine hydrochloride. The method comprises the following steps: mixing a diacetylmonoxime solution and a hydrochloric acid solution, pretreating through a pressurized nano-bubble fluidized bed, and carrying out reaction distillation under heating and pressurizing; after the reaction is finished, cooling reaction liquid, performing primary filtration and suction filtration through cross-flow filtration equipment, and collecting hydroxylamine hydrochloride crystals; and washing the crystal with absolute ethyl alcohol, recovering ethyl alcohol through cross-flow filtration equipment, and finally freeze-drying to obtain the high-purity hydroxylamine hydrochloride. The preparation method comprises the following steps: stirring quinoline-8-yl acrylate, tributyltin acrylate, 4-vinyl benzocyclobutene, ethanol and benzoyl peroxide to obtain a mixed solution; immersing the PTFE membrane subjected to low-temperature plasma pretreatment into the mixed solution, and then carrying out ultrasonic cleaning and vacuum drying to obtain a polymer modified PTFE membrane; the hydroxylamine hydrochloride prepared by the method disclosed by the invention has relatively high purity and yield, and meanwhile, the content of heavy metal ions and the content of water are effectively reduced.

The invention discloses an ethylene-vinyl acetate copolymer, an ethylene-vinyl alcohol copolymer and a preparation method thereof, and belongs to the field of polymers. Comprising the following steps: putting a mixture containing an initiator, a chain transfer agent, a solvent and vinyl acetate into a closed container, introducing ethylene gas, and carrying out pressurized polymerization to obtain the ethylene-vinyl acetate copolymer, the initiator is selected from at least one of lauroyl peroxide, benzoyl peroxide, azodiisobutyronitrile and azobisisoheptonitrile; the chain transfer agent is selected from the group consisting of 2-dimethylaminoethyl acetate and / or 2-dimethylaminoethyl propionate. The preparation method of the low-branching-degree EVA has the characteristics of mild conditions, strong controllability, simplicity in operation and large-scale application prospect. The invention also provides an ethylene-vinyl alcohol copolymer prepared from the prepared EVA through alcoholysis reaction, and the ethylene-vinyl alcohol copolymer has the characteristics of high molecular weight, narrow distribution, good appearance and the like, and meets the application requirements of commercial EVOH.

The invention discloses cold-resistant and tear-resistant coating resin and a preparation method thereof, and relates to the technical field of coatings. The invention discloses cold-resistant and tear-resistant coating resin. The invention relates to a water-based paint, which is prepared from the following raw materials in parts by weight: 40 to 60 parts of modified epoxy resin, 15 to 25 parts of poly (hexanediol adipate), 5 to 10 parts of modified nano silicon dioxide, 8 to 15 parts of diphenylmethane diisocyanate, 3 to 8 parts of trimethylolpropane, 10 to 20 parts of methyl methacrylate, 8 to 15 parts of butyl acrylate, 0.5 to 2 parts of benzoyl peroxide and 0.2 to 0.8 part of dibutyltin dilaurate. The invention relates to an anti-aging coating which comprises the following components in parts by weight: 20-30 parts of a silane coupling agent, 1-3 parts of a silane coupling agent KH-550, 0.3-1 part of an anti-aging agent 264, 5-12 parts of dioctyl phthalate and 20-35 parts of a mixed organic solvent. The raw materials are scientifically proportioned, and the cold resistance and tear resistance of the coating are remarkably improved through the synergistic effect of the modified epoxy resin and the modified nano silicon dioxide; water is strictly controlled in the whole process, side reaction is avoided, and stable resin structure is guaranteed; the preparation steps are clear and definite, the repeatability is high, the solvent system adaptability is good, construction is convenient and fast, and the method is suitable for base material protection in various low-temperature scenes.

A foaming cleansing composition includes 2.5% to 12.0% Benzoyl Peroxide, at least one acrylate polymer, Hyaluronic Acid, Niacinamide, a combination of anionic and amphoteric surfactants, expressly excluding alkyl polyglucosides, and water. The composition provides a unique textural feel as compared with existing benzoyl peroxide containing products, and in particular, is formulated as a light mousse-type architecture with viscosity which is retained on skin upon application and resists dripping, even in the shower. The composition is shelf stable and stable on application, demonstrating a viscosity of about 18-25 UD (Viscosity Rheomat M3 Spindle), and a pH about 5.5 to about 6.5.

The present invention belongs to the technical field of the prevention and removal of ice, and specifically relates to a coating having a good durability and being capable of preventing and removing ice in a large area, and a preparation method therefor and the use thereof. The preparation method of the present invention comprises: firstly, adding an SiO2 dispersion to an elastomer prepared from PDMS and a normal-temperature curing agent, and mixing same until uniform to obtain a coating solution, wherein the PDMS has a viscosity of 3,000-4,000 Pa·s and a molecular weight of 120,000-130,000; and the normal-temperature curing agent is a normal-temperature curing agent containing no carbon-carbon triple bond, and comprises one of methyltriethoxysilane, methyltripropoxysilane, diphenylbutyl carbamate or dibenzoyl peroxide.

The invention relates to the technical field of cables, and discloses a halogen-free flame-retardant control cable. The halogen-free flame-retardant control cable sequentially comprises a plurality of wire cores, an insulating layer, a shielding layer and an outer protection layer from inside to outside, wherein the outer protection layer is formed by extruding a flame-retardant polyethylene composite material outside the shielding layer; the flame-retardant polyethylene composite material is prepared from the following raw materials in parts by weight: 60 to 80 parts of linear low-density polyethylene, 8 to 12 parts of compatilizer, 8 to 15 parts of modified flame retardant, 0.3 to 0.5 part of dibenzoyl peroxide, 1 to 3 parts of lubricant and 0.5 to 1.5 parts of antioxidant; wherein under the condition that the addition amount of the introduced modified flame retardant is relatively small, the flame retardant property of the cable can still be remarkably improved.

The invention provides an edge-corrosion-resistant auxiliary agent for a cathode electrophoretic coating and a preparation method of the edge-corrosion-resistant auxiliary agent, and belongs to the technical field of cathode electrophoretic paints.The preparation method comprises the following steps that amino-terminated nitrile rubber and polypropylene glycol diglycidyl ether are subjected to an addition reaction in a solvent, and epoxy resin modified amino-terminated nitrile rubber is obtained; mixing the epoxy resin modified amino-terminated nitrile rubber with a solvent, adding a mixture of the solvent and benzoyl peroxide into the mixture, and carrying out polymerization reaction to obtain repolymerized epoxy resin modified amino-terminated nitrile rubber; and sequentially adding acid water and deionized water, and stirring to obtain the edge corrosion resistant auxiliary agent. According to the cathode electrophoretic paint, the amino-terminated nitrile rubber is modified by the polypropylene glycol diglycidyl ether, so that the mechanical property and the flexibility of the cathode electrophoretic paint are improved; and then benzoyl peroxide is used for initiating repolymerization of the epoxy modified nitrile rubber to reduce the fluidity of the electrophoretic paint in the baking process, so that the edge corrosion resistance of the cathode electrophoretic paint is improved.

The invention discloses an acid-alkali resistant fluororubber and a preparation method and application thereof, belonging to the technical field of fluororubber. The method comprises the following raw materials by mass: 100-120 parts of fluororubber, 10-20 parts of tetrapropylene fluororubber, 4-6 parts of benzoyl peroxide and 20-25 parts of modified composite filler. After mixing the fluororubber and tetrapropylene fluororubber on an open mill, the modified composite filler is added for mixing, and then the benzoyl peroxide is added for mixing to obtain a mixed rubber. The mixed rubber is sheeted and vulcanized to obtain the acid-alkali resistant fluororubber. The acid-alkali resistant fluororubber prepared by the invention is vulcanized by peroxide, and the alkaline modified composite filler is uniformly dispersed in the fluororubber, thereby improving the physical properties and mechanical properties of the fluororubber. The alkaline modified composite filler not only reduces the aging effect on the fluororubber during the vulcanization process, but also improves the acid resistance of the fluororubber after vulcanization, and can be well applied in the field of sealing rubber for electric vehicle batteries.

The invention provides a bi-component spun-bonded non-woven fabric and a production process thereof, and belongs to the technical field of non-woven fabrics. The non-woven fabric is composed of bi-component fibers of a skin-core composite structure, the skin layer of the bi-component fibers is composite polypropylene, and the core layer of the bi-component fibers is polycaprolactam; the preparation method of the composite polypropylene comprises the steps of polypropylene hydrophilic treatment, starch functional treatment and compounding. The hydrophilic treatment of polypropylene comprises the following steps: adding benzoyl peroxide, an antioxidant and ethylene bis stearamide into polypropylene, stirring for 20-25 minutes, adding polyethylene glycol monoallyl ether, stirring for 10-15 minutes, adding polyethylene glycol monoallyl ether again to obtain a polypropylene mixture, putting the polypropylene mixture into a twin-screw extruder, carrying out melt extrusion, and carrying out extrusion molding to obtain the polypropylene material. Hydrophilic polypropylene is obtained; the non-woven fabric is high in water absorption rate, short in liquid penetration time and excellent in strength and chemical stability resistance.

The invention relates to a pharmaceutical composition, which is prepared from adapalene, benzoyl peroxide, a traditional Chinese medicine extract, an acrylamide and acryloyl dimethyl sodium taurate copolymer, a mixture of isohexadecane and polysorbate 80, docusate sodium, EDTA (Ethylene Diamine Tetraacetic Acid) disodium, glycerol, poloxamer 124, propylene glycol and water, the traditional Chinese medicine extract comprises moutan bark, salvia miltiorrhiza, radix rehmanniae recen, radix sophorae flavescentis, coptis chinensis, rheum officinale, scutellaria baicalensis, menthol and borneol. According to the pharmaceutical composition disclosed by the invention, the synergistic antibacterial and anti-keratosis curative effects of adapalene and benzoyl peroxide can be maintained, and meanwhile, the occurrence rate of local skin dryness, erythema, desquamation, burning heat sensation and contact dermatitis can be remarkably reduced.

The invention discloses an acrylic acid silane ester self-renewal antifouling resin based on cation-pi interaction as well as a preparation method and application of the acrylic acid silane ester self-renewal antifouling resin. Methyl methacrylate, ethyl acrylate, triisopropylsilyl methacrylate, acrylic acid-2-methyl ethyl ester, paeonol methacrylate and acryloyloxyethyl trimethyl ammonium chloride are synthesized through a random free radical polymerization reaction with azodiisobutyronitrile and benzoyl peroxide as initiators. Wherein the methacrylic acid paeonol ester monomer is prepared by carrying out substitution reaction on paeonol and methacryloyl chloride. The anti-fouling agent is anchored on the surface of the coating again through cation-pi interaction, so that the anti-fouling effect is enhanced, and the coating still has good anti-fouling capacity even in a static environment.

This invention relates to a polyurethane-modified silicone protective material for the outer wall of wind turbine towers, and discloses a method for preparing the same material. The material is prepared by mixing acrylate-hedged phenol-modified trimethyl silicone oil, isocyanate-modified polyether polyol polyurethane, ultrafine silica, nano-alumina, short-fiber glass, triethylamine, benzoyl peroxide, dioctyl phthalate (DOP), phthalocyanine UV absorbers, dibutyltin diethylene (DDBT), and imidazole antifungal agents in a specific weight ratio. This material exhibits excellent weather resistance, mechanical strength, heat resistance, UV resistance, and antifungal properties, making it particularly suitable for the protection of wind turbine towers. The preparation method ensures the stability and consistency of the material's performance by precisely controlling the proportions of each component and the curing conditions. This material effectively improves the UV resistance, corrosion resistance, weather resistance, and overall durability of wind turbine towers, extending their service life and reducing maintenance costs. This invention provides a high-performance protective material for the outer wall of wind turbine towers, which has significant engineering application value. Especially in environments with long-term high humidity, low temperature, and strong ultraviolet radiation, it can significantly improve the stability and service life of the tower. This polyurethane-modified silicone protective material exhibits excellent protective performance in demanding application environments such as wind turbine towers, and has broad market application prospects.

The invention provides yellow glue resistant to corrosion of a plasticizer and a preparation method of the yellow glue. The yellow glue is prepared from a polyurethane prepolymer, a chloroprene rubber sheet, methyl methacrylate, benzoyl peroxide, an anti-aging agent, butanone, cyclohexane, dimethyl carbonate and tackifying resin. The polyurethane prepolymer is prepared from the following components in parts by weight: 10 to 14 parts of 1, 4-butanediol adipic acid polyester polyol, 4 to 8 parts of polycaprolactone polyol, 1 to 3 parts of diphenylmethane diisocyanate, 0.05 to 0.15 part of 1, 6-hexanediol, 1 to 2 parts of hydroxyethyl methacrylate, 0.01 to 0.03 part of organic bismuth catalyst and 75 to 80 parts of butanone. The polyurethane prepolymer with specific crystallization performance is synthesized through cooperation of polycaprolactone polyol and polyester polyol, and the yellow glue is endowed with excellent plasticizer corrosion resistance and low-temperature activation capacity. Active groups in the polyurethane prepolymer are subjected to graft copolymerization with the chloroprene rubber adhesive and MMA, and a plasticizer-resistant polyurethane chain segment is introduced into a molecular chain of the chloroprene rubber adhesive, so that a hard segment-soft segment alternating block structure is formed, and corrosion resistance and viscoelasticity are both considered.

The application discloses basalt flake anti-scratch polyurethane paint, a preparation method and application thereof, the paint comprises a component A and a component B with a mass ratio of 4-6:1, the resin in the component A comprises modified hydroxyl acrylic resin and hydroxyl acrylic resin; wherein the modified hydroxyl acrylic resin is prepared from raw materials comprising the following components: wear-resistant component with double bonds 20-50%, acrylic monomer 10-20%, hydroxyl acrylic monomer 15-30%, second solvent 20-30% and dibenzoyl peroxide 0.5-3%. The component A of the paint adopts low-density modified hydroxyl acrylic resin containing hard wear-resistant particles, the resin is blended with traditional resins, and the low-density resin containing hard wear-resistant particles prepared in the paint will float on the surface of the coating during the surface drying process, so that a hard wear-resistant surface layer is formed, the hardness can reach more than 4H, and the paint not only has wear resistance, but also can well protect the paint from being scratched by sand or sharp objects.

The invention relates to an oily liquid absorbing and storing agent which is selected from one of corn starch and cassava starch. The preparation method comprises the following steps: selecting proper macromolecular resin as a framework material: one or more than one of polypropylene, polystyrene and polymethyl methacrylate; one of benzoyl peroxide, azodiisobutyronitrile and dibenzoyl peroxide is selected; triphenyl phosphate or Lewis acid is commonly used, so that the process of generating free radicals by the initiator can be accelerated; the solvent is one of vinyl benzene, trimethylolpropane triacrylate and dimaleimide; one of sodium dodecyl benzene sulfonate and lauryl sodium sulfate can be selected. The invention also discloses a method.