141results about How to "Promote mutual solubility" patented technology

The invention relates to a high-elasticity asphalt modified composition, a modifier, modified asphalt, a modified asphalt mixture and a preparation method. The modified composition comprises 100 parts of a styrene-butadiene-styrene segmented copolymer, 20-40 parts of a tackifier, 20-40 parts of a softener, 3-8 parts of a warm mixing agent, 15-40 parts of a plasticizer and 2-6 parts of a stabilizer. The preparation method of the modifier comprises the following steps: (1) mixing the styrene-butadiene-styrene segmented copolymer, the tackifier and the warm mixing agent according to a formula to obtain a melt; and (2) mixing the softener, the plasticizer and the stabilizer with the melt, and then extruding, cooling and dicing. The modified asphalt is prepared by doping the modifier into matrix asphalt and uniformly mixing. The modified asphalt mixture is prepared by mixing the modified asphalt and a raw material of a mineral mixture. The modified asphalt provided by the invention has good high-temperature and low-temperature stabilities and anti-fatigue capacity, and the modified asphalt mixture is strong in construction workability and good in pavement performance.

The invention relates to fog seal modified emulsified asphalt which comprises the following components by weight: 18-35% of asphalt, 8-18% of an asphalt modifying agent, 5-12% of an asphalt regenerating agent, 1-4% of a compound emulsifying agent and 50% of water. The preparation method comprises the following steps: directly adding the asphalt modifying agent and the asphalt regenerating agent to hot melt asphalt for mixing to prepare modified asphalt; mixing and emulsifying the modified asphalt and an aqueous solution of the compound emulsifying agent through a colloid mill; and mechanically stirring to prepare the fog seal modified emulsified asphalt. The prepared fog seal modified emulsified asphalt has the advantages of good storage stability, good water dilutability, environmental protection in use, good surface consolidation performance after construction, good abrasion resistance, difficult sticking off by wheels, short traffic close time, improvement of construction conditions, improvement of construction efficiency, good water seal function, asphalt pavement water damage prevention, pavement structure protection and extension of pavement service life.

The invention discloses an alcohol-based fuel combustion improver and an alcohol-based fuel. The alcohol-based fuel combustion improver consists of 4.9-93 parts by weight of co-solvent, 4.9-93 parts by weight of bio-oil, 0.1-0.3 part by weight of smoke suppression combustion improver and 1.0-3.0 parts by weight of combustion improver; and the alcohol-based fuel is formed by mixing and stirring 80-99 parts by weight of methanol and 1-20 parts by weight of alcohol-based fuel combustion improver. By adopting the combustion improver disclosed by the invention, the prepared alcohol-based fuel is a novel biological environment-friendly alcohol-based fuel, the calorific value is as high as 6,000-10,000 calories / g, and the combustion performance is good; and moreover, the alcohol-based fuel has high flash point and low volatility, and potential safety hazards in the prior art are eliminated. The alcohol-based fuel disclosed by the invention also has the characteristics of being safe and environment-friendly, reproducible, clean and sanitary, convenient to use, cheap and the like.

The invention relates to the technical field of skin care products, in particular to eye essence containing a lactobacillus fermented lysate product and a preparation method of the essence. The eye essence comprises, by weight, the lactobacillus fermented lysate product, a tea extract, a pomegranate peel extract, caffeine, royal jelly polypeptide, oat beta-glucan, a buckwheat seed extract, ceramide, an emulsifier and a solvent. The eye essence is mild and safe and is easily coated and absorbed, the tea extract, the pomegranate peel extract and the caffeine are used as a main anti-aging and antioxidation frame of the eye essence, the energy of the skin cells is improved in combination with the lactobacillus fermented lysate product, and the absorption capacity of the skin is improved; meanwhile, royal jelly polypeptide, oat beta-glucan, the buckwheat seed extract and ceramide are used a nutrient frame, the nutrients and moisture are supplemented for the eye skin in time, and the effectsof the eye essence on anti-aging, wrinkle removal, antioxidation and nutrient supplement are achieved.

The invention discloses titanium and titanium alloy electrochemical polishing liquid and a polishing method. The electrochemical polishing liquid comprises the following components: 10-40 g / L of sodium chloride, 40-70% of glycerin, 20-40% of glycol, 5-20% of anhydrous ethanol, 0.1-1% of perchloric acid, and 1-5 g / L of additive; and the additive consists of an accelerator, a leveling agent and a brightening agent. Substances contained in the electrochemical polishing liquid are environment-friendly and nontoxic; no poisonous gas is generated in the electrochemical polishing process; after titanium and titanium alloy workpieces are electrochemically polished by the electrochemical polishing liquid, the surfaces present specular gloss, and the average roughness can be reduced below 10 nm; the electrochemical polishing liquid is weak in corrosion capacity and low in corrosion of electrolysis equipment, and can be used for a long time; only mother liquor needs to be fed in the electrochemical polishing liquid; and the electrochemical polishing liquid can be reused by above 500 times, and is high in stability.

The invention discloses a thermoplastic polyurethane elastomer cable material and a preparation method thereof. The material is composed of: modified chlorosulfonated polyethylene, maleic-anhydride-grafted polyolefin elastomer, thermoplastic polyurethane elastomer, white carbon black, limestone powder, zinc oxide, a vulcanizing agent MOCA, an anti-aging agent OD, dibutyl phthalate, methyl triethoxysilane, diphenylamine, Tween 80, chlorinated paraffin, and zinc borate. According to the invention, modified chlorosulfonated polyethylene, maleic-anhydride-grafted polyolefin elastomer, and thermoplastic polyurethane elastomer high-molecular materials are used as base materials of the material; with dibutyl phthalate, inter-solubility of the components are improved; and a plurality of functional auxiliary materials are added. Therefore, the defect of the incapability of being used under high-temperature environment of cable materials is solved. The material has good flame resistance, greatly improved mechanical property, and good dynamical performance.

The invention discloses a fence-type aluminum bar lead alloy anode plate for non-ferrous metal electrodeposition and a preparation method of the fence-type aluminum bar lead alloy anode plate. The fence-type aluminum bar lead alloy anode plate for non-ferrous metal electrodeposition comprises an aluminum or aluminum alloy conductive beam (1), a copper-aluminum explosive composite conductive head (2) and a fence-type anode plate bracket (3), wherein the copper-aluminum explosive composite conductive head (2) is welded on the conductive beam; the fence-type anode plate bracket (3) is welded below the aluminum or aluminum alloy conductive beam (1), and is assembled by aluminum bar lead alloy composite anode bars; the aluminum bar lead alloy composite anode bars forming the fence-type anode plate bracket are fixed by virtue of an insulating edge-clamping strips (4); the insulating edge-clamping strips are welded with one another to form an overall frame; and a layer of beta-PbO2-polyaniline conductive ceramic (5) covers the surface of the fence-type anode plate bracket. Compared with a traditional lead-based alloy anode plate, the fence-type aluminum bar lead alloy anode plate has the advantages that the electrical conductivity is significantly improved; the bath voltage can be reduced by 12%; the material cost is reduced by 30%; and the current efficiency is improved by 2%-5%.

The invention relates to a hot-melt pressure-sensitive adhesive and a preparation method of the pressure-sensitive adhesive. The pressure-sensitive adhesive comprises the following ingredients in parts by mass: 15-25 parts of butyl rubber, 5-15 parts of hydrogenated styrene-butadiene segmented copolymer thermoplastic elastomers, 25-35 parts of hydrogenated synthetic resin, 15-25 parts of poly- alpha methyl styrene hydrogenated resin, 25-35 parts of a rubber plasticizer and 0.3-1 part of an antioxidant. The hot-melt pressure-sensitive adhesive solves the disadvantages of small cohesion and poorthermal creep resistance of butyl rubber and can also achieve good mutual dissolution; since the butyl rubber hot-melt pressure-sensitive adhesive has a good bonding property with various high polymer coiled materials and good ultraviolet aging resistance, when the pressure-sensitive adhesive is applied to the self-adhesive film water-proof coiled materials, the pressure-sensitive adhesive has the characteristics of excellent high and low temperature resistance, excellent ultraviolet aging resistance, high stripping strength with cement mortar after bonding, a wide application scope of the water-proof coiled materials, low cost and the like, and is better in water-proof performance.

The invention discloses a color testing machine capable of achieving automatic charging. The color testing machine comprises a shell, a rotating mechanism, dyeing cups, an auxiliary charging mechanism and a data processor; a containing cavity is formed in the shell; the rotating mechanism comprises a rotating cage and a power mechanism, the rotating cage is a three-dimensional component formed by drawing a n-regular polygon, and the side walls of the rotating cage are each provided with internally-concaved containing grooves; the dyeing cups are arranged in the containing grooves; each cup lid comprises a movable shaft which can vertically move, and each movable shaft is provided with a charging port and discharging ports; each material injecting cup is provided with holes and connected with the bottom wall of the corresponding cup lid; cup bodies are connected with the cup lids in a matched mode; when the movable shafts are pressed, the discharging ports of the movable shafts enter the material injecting cups; the auxiliary charging mechanism comprises a flow pump and a first air cylinder, the flow pump is connected with sample charging needles which are opposite to the charging ports, and the first air cylinder is used for pushing the movable shafts; the rotating mechanism and the auxiliary charging mechanism are both controlled by the data processor. According to the color testing machine capable of achieving automatic charging, automatic auxiliary charging is achieved, human errors are reduced, and dyeing defects cannot be generated.

The invention relates to a composite heat stabilizer and a preparation method, belonging to the field of chemical agents. The composite heat stabilizer comprises a heat stabilizer, zinc stearate, hexadecanol, beta-diketone, PE (Polyethylene) wax, a composite oxidation inhibitor, phosphorous ester and mineral oil; and the reasonable chemical synthesis and the complex formulation are carried on the heat stabilizer, the zinc stearate, the hexadecanol, the beta-diketone, the PE (Polyethylene) wax, the composite oxidation inhibitor, the phosphorous ester and the mineral oil to obtain a finished product. The stabilizer relates to a mixture of disulphide group acetic acid iso-octyl dimethyl tin and organic acid rare earth; according to the preparation method, all the components are dissolved and compounded in thermal state to prepare the composite heat stabilizer, thereby reducing the dust pollution, simplifying a process formulation when PVC (Polyvinyl Chloride) is used for processing products and increasing the transparency, the antioxidant property, the anti-ultraviolet radioactivity of the products; the composite heat stabilizer is non-toxic and reduces the cost; and the composite heat stabilizer is suitable for the processing of the PVC (Polyvinyl Chloride) products such as flexible plastics, water supplying tubular products, plastic injection parts and the like, solves the problems of poor initial dyeing property, poor plasticizing effect, weak impact resistance at low temperature, weather resistance and the like of the traditional single stabilizer and increases the thermal stability of the PVC (Polyvinyl Chloride) products.

The invention relates to methanol diesel oil which comprises methanol, diesel oil, fatty acid, petroleum acid, cosolvent, aviation kerosene, a cetane number improver and zinc peroxide. The invention further relates to a preparation method of the methanol diesel oil. According to the methanol diesel oil, the content of methanol in a system is greater, the methanol diesel oil has better mutual solubility with fossil diesel oil, the performance of the methanol diesel oil is improved obviously, and the methanol diesel oil can serve as -20# diesel oil for use, and is safe, environment-friendly and low in raw materials cost. The preparation method is simple in step, mild in condition and suitable for large-scale industrial production.

The invention discloses a cleaning-free water-soluble welding flux for lead-free welding, which comprises the following components of water-soluble modified rosin, organic acid active agent, halide active agent, nonionic surface active agent, flux and solvent deionized water. The invention also discloses a preparation method of the cleaning-free water-soluble welding flux for lead-free welding, which comprises the following steps: firstly, adding the flux and the deionized water in a reaction vessel with a stirrer according to a certain weight percentage for stirring; adding the water-soluble modified rosin according to the weight percentage in the stirring process; and secondly, adding the nonionic surface active agent, the organic acid active agent and the halide active agent for stirring continuously after dissolving the water-soluble modified rosin, and obtaining the cleaning-free water-soluble welding flux for lead-free welding after uniform stirring. The invention ensures high reliability of electronic information products, causes lead-free welding operating environment to be safe and reliable, conforms to the environmental protection requirements and saves energy resources simultaneously.

The invention discloses a coal tar and residuum hydrocracking-delayed coking combination processing method which is as follows: light and heavy coal tar are obtained by reduced pressure distillation of coal tar; the light coal tar is mixed with and residuum, and enters a fluidized bed reactor together with hydrogen to contact a hydrocracking catalyst for hydrocracking reaction, a hydrocracked effluent is separated to obtain a gas and a liquid phase product, gasoline, diesel, vacuum gas oil and tail oil are obtained by fractionation of the liquid phase product; the tail oil and the heavy coal tar together enter a delayed coking unit for thermal cracking reaction to obtain coker dry gas, coker gasoline, coker diesel oil, coker gas oil and coke. The process method can improve the conversion rate of raw materials, reduce coking, increase the yield of light oil, and prolong the device operation cycle, and provides a processing method for low-added-value coal tar and residuum to improve the economical efficiency.

The invention relates to the field of active carbon preparation, and discloses spherical active carbon and a preparation method thereof. The method comprises the following steps: (1) mixing sulfonatedasphalt and an activating agent, and carrying out spray granulation on the obtained mixed solution to obtain mixed microspheres; (2) carrying out microwave activation on the mixed microspheres to obtain active microspheres; and (3) removing impurities from the active microspheres to obtain spherical active carbon, wherein the activating agent is potassium hydroxide, and the temperature of spray granulation is 600-1000 DEG C. The preparation method is simple and rapid, and the prepared spherical active carbon has the advantages of good sphericity, large specific surface area, uniform and controllable pore diameter, uniform particle size distribution and excellent adsorption performance.

The invention provides a method for preparation of glycerin alkyl ether. The method includes: (1) adding a mixed solution of tert-butyl alcohol and glycerin and liquid isobutylene simultaneously intoa fixed bed reactor filled with an acidic resin catalyst to carry out glycerin etherification reaction on the system; (2) letting the material flowing out of the fixed bed reactor into a gas separation system to be separated into a gas phase and a liquid phase; (3) letting the liquid phase material enter a tert-butyl alcohol separation system to separate tert-butyl alcohol and (4) collecting the polyether product. The invention also provides a reaction system for preparation of glycerin alkyl ether. Under the reaction conditions of a temperature of 45-80DEG C and a glycerin residence time of 0.80-2.50h, the glycerin conversion rate can reach 100%, the polyether selectivity is up to 98.6% or more, and the selectivity of an isobutylene dimer is 1.7% or below. The method lowers the reaction temperature, greatly reduces the residence time of glycerin in the fixed bed, and well controls the selectivity of isobutylene dimer.

The industrial fuel gas for welding and cutting metal in high efficiency and low consumption consists of basic fuel gas with dimethyl ether as main component in 98-99.99 wt% and synergistic additive in 0.01-2 wt%. The synergistic additive is mixture of castor oil 10-15 wt%, methanol 10-20 wt%, octanol 10-20 wt%, sodium alkyl sulfonate 4-5 wt%, and 150# solvent oil 56-65 wt%. The industrial fuel gas is safe, clean and environment friendly, and has low consumption, raised flame temperature, high burning efficiency and other advantages.

The invention relates to a method for preparing biodiesel from hemp plant oil; and a co-solvent is adopted to fully dissolve alcohol and oil to be homogeneous, is added with a solid catalyst, and is pumped into a tubular reactor to carry out continuous reaction. A static mixer is arranged in the reactor. The reaction temperature is 60 to 300DEG C, the reaction pressure is 1 to 30MPa, the molar ratio of methanol to oil is 3 to 100, the molar ratio of the co-solvent to oil is 1 to 30, the consumption of the catalyst is 0.5 to 5 percent of the mass of the oil, and the reaction time is 10 to 120min. After reaction, through cooling, the catalyst is filtered and recovered, and then enters a flash tank to recover the alcohol and the co-solvent, and crude biodiesel is prepared by staying still and being layered; and after distillation, a biodiesel product is prepared, and the quality yield is more than 95 percent. The process is simple, the reaction can be carried out continuously, the catalyst, the alcohol and the co-solvent can be recycled, the equipment investment is low, and the production cost is low.

The invention provides a fluorocarbon resin coating, which comprises the following components in percentage by weight: 20 to 70 percent of fluorocarbon resin of which the weight-average molecular weight is between 5,000 and 20,000, 1 to 7 percent of fluorine-containing compound or silicon-containing compound, 1 to 5 percent of inorganic nanometer-powder, 1.1 to 7.2 percent of drier, and the balance of organic solvent, wherein the fluorine-containing compound or the silicon-containing compound comprises one or more radicals of an epoxy group, an amino group, a hydroxyl group, a carboxyl group, a sulfonic acid group and an ester group. The fluorocarbon resin coating cannot generate free low surface energy substances in use; and when the fluorocarbon resin coating is coated on the surface of a coating workpiece to form a coating layer, on the first hand, the coating workpiece is isolated from a painting environment to ensure that the coating workpiece can be cleaned easily and the cleaning cost is reduced, and on the other hand, the painting effect is not influenced to avoid shrinkage cavities on the surface of a paint film.

The invention provides a composite anode material. The composite anode material comprises a metal bar core, a metal layer, a conductive ceramic layer and an activate ceramic layer, wherein the metal bar core is coated with the metal layer, and the metal layer adopts lead or a lead alloy; the metal layer is coated with the conductive ceramic layer, and the conductive ceramic layer comprises beta-PbO2-Al2O3 composite oxide; and the conductive ceramic layer is coated with the activate ceramic layer, and the activate ceramic layer comprises gamma-MnO2-Ti4O7 composite oxide. Compared with the priorart, according to the composite anode material, the outermost layer of the anode composite material comprises the gamma-MnO2-Ti4O7 composite oxide, wherein the gamma-MnO2 has the low oxygen evolutionpotential, the catalytic activity and corrosion resistance of an electrode can be further improved due to doped titanium, and meanwhile the intermediate conductive ceramic layer beta-PbO2-Al2O3 composite oxide has the good corrosion resistance and conductivity, so that the service life of the anode composite is longer, and the lower cell voltage is provided.

The invention discloses polyester spinning oil. The polyester spinning oil is prepared from higher fatty acid triethanolamine salt, lauroyl diethanolamine, pentaerythritol oleate, a smoothing agent, an antistatic agent, a preservative, an emulsifying agent, an anti-splashing agent, and a permeating agent. According to the polyester spinning oil and the preparation method thereof, the bundling performance of the oil can be improved very well by taking the higher fatty acid triethanolamine salt as a bundling agent; the pentaerythritol oleate and the lauroyl diethanolamine have good heat resistance and viscosity properties, and can improve the wettability and temperature resistance of the oil very well; the anti-splashing agent is added, so that the viscosity of the oil is improved, and meanwhile, the tension surface of the oil is greatly increased; therefore, the attachment degree of the oil is high; the permeating effect of the oil is good through the permeating agent; and more oil permeates into yarns.

The invention belongs to the technical field of light responsive materials, and particularly relates to a cholesteric-phase liquid crystal material with a color controlled by visible light. The invention discloses the cholesteric-phase liquid crystal material with the color controlled by the visible light. The cholesteric-phase liquid crystal material is prepared from the following raw materials in parts by weight: 30 to 99 parts of nematic liquid crystals, 0.9 to 50 parts of a non-substitutive azobenzene derivative and 0.1 to 50 parts of a substitutive chiral azobenzene derivative. The colorof the cholesteric-phase liquid crystal material has the visible light responsiveness; furthermore, after illumination is stopped, the color of the liquid crystal material can be stably maintained fora long time.

The invention discloses a high-toughness corrosion-resistant FeCoNiCuAl high-entropy alloy wave-absorbing material as well as a preparation method and application thereof. High-entropy alloy powder is prepared through an ultralow-temperature liquid nitrogen planetary ball mill; and after drying, cold isostatic pressing is performed on a pressed blank, and microwave sintering is performed on the pressed blank to obtain the high-entropy alloy wave-absorbing material. A mode of combining a low-temperature ball milling process and microwave sintering is adopted. Alloyed powder with smaller particle size can be obtained through low-temperature ball milling, grains of the material are refined, particle distribution is more uniform, the internal structure is more compact, and the mechanical performance of the material is improved; and microwave sintering can be completed within a short alloying time, and crystal grains cannot grow excessively, so that the structure of the material is more compact, particles are finer, and finally, the material has the characteristics of high toughness, high wave-absorbing performance, corrosion resistance and the like.

The invention belongs to the field of lubricating oil for refrigeration systems and relates to a preparation method of polyvinyl ether lubricating oil base oil mutually soluble with an R32 refrigerant at low temperature and application of the polyvinyl ether lubricating oil base oil in a refrigeration system. The preparation method comprises the following steps: by taking methyl vinyl ether and ethyl vinyl ether as raw materials, controlling a proportion of the two raw materials and combining with regulation of a dosage of boron trifluoride diethyl etherate as a polymerization catalyst, the two raw materials copolymerize to obtain a polymer or are blended to obtain a mixture after homopolymerizing respectively, and then hydrogenation and distillation are performed on the polymer or the mixture to obtain the polyvinyl ether lubricating oil base oil. The lubricating oil base oil provided by the invention has excellent intersolubility with the R32 refrigerant, can be well mutually soluble with the R32 refrigerant at low temperature ranging from 60 DEG C below zero to 10 DEG C below zero without separation, has excellent stability and lubricity, solves the problem of low-temperature intersolubility with a new generation of refrigerant R32, is also good in intersolubility with the traditional refrigerant and is strong in universality.

The invention discloses a biological alcohol-based fuel oil hydrotropy-solubilization agent. The agent is prepared from the following raw materials in parts by weight: 55-61 parts of hydrotropy ingredients, 9-13 parts of layering-resistant ingredients, 19-24 parts of lubricant ingredients, 8-12 parts of wear-resistant ingredients, 6-12 parts of fortifier, 8-12 parts of etherifying agent, 5-14 parts of combustion promoter, 1-3 parts of metal corrosion inhibitor, 1-3 parts of antioxygen and antigum inhibitor, 1-10 parts of non-ionic surface active agent and 1-5 parts of surface modifier, whereinthe hydrotropy ingredients are fatty alcohol; the layering-resistant ingredients are fatty acid and fatty acid ester; the lubricant ingredients are fatty soap and fatty acid ester.

The invention discloses a rubber gasket for an anti-corrosion instrument meter. The rubber gasket is prepared from, by weight, 40-80 parts of an ethylene-propylene methylene copolymer, 10-20 parts of fluororubber, 30-50 parts of nitrile rubber, 1.5-2.5 parts of a vulcanizing agent HTDM, 1-2 parts of sulfur, 1-1.5 parts of a vulcanization accelerator DM, 0.6-1.2 parts of a vulcanization accelerator CZ, 4-10 parts of fir charcoal, 10-15 parts of bentonite, 8-16 parts of nanosilicon dioxide, 20-40 parts of modified linter cellulose, 1.5-2.5 parts of epoxidized octyl oleate, 0.3-0.7 part of epoxidized linseed oil, 0.8-1.6 parts of propanediol sebacate polyester, 1.2-1.8 parts of an anti-ageing agent 4010, 1.5-2.5 parts of an anti-ageing agent IPPD and 0.4-0.8 part of an anti-ageing agent BLE. The rubber gasket is excellent in ageing resistance and corrosion resistance, has excellent mechanical performance, and is quite good in tenacity and sealing effect, applicable to gasket sealing environment, good in ageing resistance and excellent in corrosion resistance.

The invention discloses a hydrocracking-catalytic cracking combined treatment method for coal tar and residual oil. The method includes: subjecting coal tar to pressure reduced distillation so as to obtain light coal tar and heavy coal tar; mixing the light coal tar with the residual oil, then conducting hydrocracking reaction, separating the hydrogenation cracking effluent to obtain a gas and a liquid product, and fractionating the liquid product to obtain gasoline, diesel, pressure reduced gas oil and tail oil; mixing the tail oil obtained by hydrocracking with heavy coal tar, then carrying out catalytic cracking reaction under supercritical conditions so as to obtain cracked gas, light distillate oil, heavy distillate oil and cracking residual oil. The method provided by the invention can improve the conversion rate of raw materials, reduce coking, increase the yield of light oil, extend the depth, slow down the deep condensation reaction of heavy raw material oil in a catalytic cracking device and prolong the service life of a catalytic cracking catalyst, thus providing a processing method for improving the economical efficiency of residual oil and coal tar with low added value.

The invention relates to an itaconic acid diester type photocuring monomer, a composition, a preparation method and application. The molecular structure of the itaconic acid diester type photocuring monomer is shown as a formula (I), R1 and R3 independently represent any group selected from hydrogen atoms, alkyl with 1-6 carbon atoms, alkenyl with 2-6 carbon atoms, aryl and aralkyl, R2 and R4 independently represent any group selected from alkyl with 1-6 carbon atoms, alkenyl with 2-6 carbon atoms, aryl and aralkyl, and R1 and R2 independently represent any group selected from alkyl with 1-6 carbon atoms, alkenyl with 2-6 carbon atoms, aryl and aralkyl. And X and Y each independently represent an empty chain alkyl group having 1-12 carbon atoms. The monomer at least contains three or more unsaturated groups, is biomass-sourced, and is simple and convenient to synthesize. The composition is composed of various specific monomers in the general formula (I), multifunctional compounds except the compounds, a photoinitiator, an auxiliary agent and the like. The composition enables a photocuring reaction to fully occur even in an air atmosphere, and has excellent curing performance. Wide application prospects are realized in the fields of photocuring coatings and the like.

The invention relates to a high-content fomesafen aqueous solution and a preparation method thereof. The preparation method comprises the following steps: adding deionized water into a container, stirring, adding a 97% fomesafen raw medicine, slowly dropping a 99% 2-(2-aminoethoxy) ethanol solution, after dropping is completed, continuously stirring for more than 10 minutes to sufficiently react and neutralize the fomesafen raw medicine with 2-(2-aminoethoxy) ethanol so as to form a transparent solution, finally adding an alkyl glycoside surfactant aid, and uniformly stirring to obtain a fomesafen aqueous solution product.

The present invention discloses an oil-in-water Pickering emulsion with stable ursolic acid and a preparation method of the oil-in-water type Pickering emulsion. The oil-in-water Pickering emulsion with the stable ursolic acid is prepared from the following raw materials in percentages by mass: 2-4% of ursolic acid, 2-8% of propylene glycol, 1-2% of phospholipid, 20-40% of functional grease, 0.04-0.2% of sucrose ester, 0.15-0.5% of tween 80, 0.5-1% of protein, 0.02-0.04% of a thickening agent and water. By constructing and utilizing the Pickering emulsion of the ursolic acid combined with a surfactant, multilayer microcapsule recombinant powder is prepared. The oil-in-water Pickering emulsion has characteristics of being green and safe, good in stability, high in compatibility, good in dispersibility, high in uniformity, excellent in instant solubility, etc.

The invention belongs to the field of composites, and discloses a low-temperature-resistant frozen polycarbonate abrasive, raw materials and method for preparation thereof, and a method for removing burrs. The raw materials for preparation of the low-temperature-resistant frozen polycarbonate abrasive comprise polycarbonate, a silicone-polycarbonate copolymer, a flexibilizer, and an optional compatilizer and other additives, wherein a weight ratio of the polycarbonate to the silicone-polycarbonate copolymer and the flexibilizer is (7.5-50):(0.5-15):1; the flexibilizer has a core-shell structure in which the shell is an acrylate polymer having a number-average molecular weight of 18000-28000 and the core is silicone rubber having a glass-transition temperature Tg below -60 DEG C. The polycarbonate abrasive prepared from the raw materials disclosed in the present invention is good in burr removal effect at low temperature and small in abrasion loss.