2457 results about "Anti oxidant" patented technology

The invention discloses a high-bonding-strength flame-retardant composite current collector base film and a preparation method thereof. The high-bonding-strength flame-retardant composite current collector base film is prepared from the following raw materials in parts by weight: 100 parts of PP resin, 1.5 parts of a lubricant, 0.8 part of an antioxidant and 16 parts of reinforced flame-retardant composite particles, the reinforced flame-retardant composite particles are prepared by the following steps: S1, preparing amidated porous carbon microspheres; s2, compounding the amidated porous carbon microspheres with mica powder to prepare a composite carrier; s3, loading a flame retardant to prepare a flame-retardant compound; s4, in-situ grafting of maleic anhydride grafted polypropylene is carried out, and the reinforced flame-retardant composite particles are obtained. By adding the reinforced flame-retardant composite particles into the PP resin, the flame retardance and mechanical strength of the PP-based composite current collector base film and the interface bonding force between the PP base film and the metal conductive layer can be comprehensively improved.

The invention discloses a bacillus coagulans feed additive and a preparation method thereof, and relates to the technical field of feed additives, the bacillus coagulans feed additive comprises bacillus coagulans spores, the content of the spores is 1.0 * 10 < 8 >-1.0 * 10 < 11 > CFU / g; the protective agent system comprises the following components: maltodextrin or lactose, vegetable protein, polyhydric alcohol and an antioxidant; the invention discloses a microcapsule coating structure. A microcapsule is a two-layer composite coating of an inner layer alginate matrix and an outer layer polycation or polymer coating. According to the invention, bacillus coagulans spores which can still keep high survival rate under short-time high-temperature and low-pH conditions are obtained through screening and fermentation strategies of strains with high sporulation and heat and acid tolerance, the problem that common strains are easy to inactivate in granulation, extrusion and gastric acid environments is solved, the problem of product failure caused by insufficient tolerance of the strains is reduced, and the product quality is improved. And the original biological activity basis is improved, so that the protection effect of the subsequent formula and the coating can be played at a higher starting point, and the zoology effect of the final preparation is improved.

The invention discloses carbon-based material loaded hydrotalcite synergistically modified composite rubber asphalt which comprises the following components in percentage by mass: asphalt, rubber powder, a dispersing agent, a retarder, carbon-based material loaded hydrotalcite, an antioxidant and a heat stabilizer. The carbon-based material loaded hydrotalcite, the antioxidant and the heat stabilizer are compounded, so that the ultraviolet aging resistance, the oxidation aging resistance and the mechanical strength of the composite rubber asphalt can be remarkably improved, the limitation of a single modified material is effectively overcome, and the service life of an asphalt road is greatly prolonged.

The invention relates to the technical field of polyolefin cable materials, in particular to a photovoltaic weather-resistant anti-cracking low-smoke halogen-free flame-retardant polyolefin cable material and a preparation method thereof.The photovoltaic weather-resistant anti-cracking low-smoke halogen-free flame-retardant polyolefin cable material is prepared from, by weight, 90-150 parts of polyolefin resin, 1-3 parts of antioxidant, 2-5 parts of ultraviolet light absorber, 30-70 parts of composite flame retardant, 10-25 parts of carbon black and 3-5 parts of cross-linking agent; the composite flame retardant comprises a core material, a first shell material and a second shell material, the core material comprises a halloysite nanotube adsorbed with a flame retardant, the first shell material comprises epoxy resin, and the second shell material comprises maleic anhydride grafted polyethylene. According to the polyolefin cable material provided by the invention, the purpose of efficient flame retardance can be achieved by adding the halloysite nanotubes and the flame retardant system, the interfacial compatibility between the flame retardant and the matrix resin can be improved by adding the maleic anhydride grafted polyethylene, and the flame retardance of the polyolefin cable material can be improved by combining the added halloysite nanotubes and epoxy resin. The purpose of improving weather resistance, stress resistance and crack resistance of matrix resin is achieved.

The invention relates to the technical field of refractory materials, in particular to an antioxidant and application thereof in steel ladle slag line bricks, and the antioxidant comprises a Si / SiC multiphase material, modified nano Al2O3 and CaF2; the ladle slag line brick comprises an antioxidant, fused magnesite, crystalline flake graphite and phenolic resin. Si-SiC compound waste is subjected to magnetic separation and acid pickling, then a SiO2 passivation layer is formed through pre-oxidation, moisture and air in the storage period are isolated, and a titanate coupling agent is introduced to improve the wettability and compatibility with phenolic resin. P2O5 released by phosphate on the surface of the modified nano Al2O3 at a high temperature reacts with alkali (earth) metal migrated to a SiO2 oxide layer to prevent the alkali (earth) metal from forming a low-melting-point eutectic substance, CaF2 reacts with SiO2 along with temperature rise, a passivation layer is broken, internal Si and SiC are directly exposed, and boron oxide of the modified nano Al2O3 remarkably reduces activation energy and a temperature threshold value of the reaction of CaF2 and SiO2.

The invention discloses a preparation technology for preparing a high-strength PP composite material based on waste plastic regeneration, and belongs to the technical field of regenerated PP composite materials. Cleaning and crushing the separated polypropylene plastic, adding the crushed polypropylene plastic, the maleic anhydride grafted polypropylene, the composite flame-retardant powder, the reinforcing agent, the modified organic silicon resin and the antioxidant 1010 into an internal mixer, carrying out melt blending, and discharging to obtain the high-strength polypropylene composite material. The polypropylene fragments, the composite flame-retardant powder, the reinforcing agent and the modified organic silicon resin are subjected to melt blending, so that the flame retardance, the oxidation resistance, the tensile strength and the cantilever beam notch impact strength of the regenerated polypropylene are further improved.

The application belongs to the technical field of welding materials, and discloses a preformed soldering sheet and a preparation method thereof, the preparation method comprising: a flux preparation method, wherein benocyclobutene resin, a thixotropic agent, an active agent, a surfactant, an antioxidant, a corrosion inhibitor and a solvent are weighed, mixed and heated and stirred to mix, and then cooled to obtain the required flux; a processing method of a preformed soldering sheet body soldering strip, wherein lead-free filler metal is melted at high temperature to form a soldering strip; and a preformed soldering sheet preparation method, wherein the soldering strip is uniformly coated with the flux by a coating machine, and the flux is cured and attached to the soldering strip after baking; the preformed soldering sheet is obtained by the above preparation method. The application realizes improved welding quality of the soldering sheet coated with the flux film and solder metal oxidation resistance, and the preformed soldering sheet has high stability, good wettability and good weldability, and can meet the requirements of the market for the use of the preformed soldering sheet with low cavities.

The invention relates to the technical field of ceramic glaze water, in particular to ceramic glaze water capable of continuously releasing negative ions based on a rare earth material and a preparation method of the ceramic glaze water. Comprising a negative ion material, sodium polystyrenesulfonate, an immobilized bacterium preparation, carbon nanotube modified graphene oxide, turbo stone, modified sepiolite, nano-zinc oxide, sodium hexametasilicate, polyethylene glycol, a composite antioxidant, a coalescing agent, a slow-release carrier and deionized water. The negative ion material is formed by mixing low-radioactivity commercial rare earth powder, tourmaline and opal according to the mass ratio of (3-4): (4-5): 1. According to the invention, the preparation cost of the glaze water is reduced and the production efficiency is improved by optimizing the composition and compounding mode of the negative ion material, enhancing the stability of the bacterial preparation and simplifying the preparation process, meanwhile, the negative ion release durability, the ceramic surface adhesive force and the antibacterial property are remarkably enhanced, and the requirements of industrial production and practical application are met.

The invention discloses a high-durability reflective hot-melt road marking coating and a preparation method thereof, and belongs to the technical field of coatings. The coating is prepared from the following raw materials in parts by weight: 15-25 parts of modified petroleum resin, 2-5 parts of a plasticizer, 5-15 parts of glass beads, 5-10 parts of pigment, 45-60 parts of filler, 3-8 parts of a durability enhancer and 0.5-1.5 parts of an antioxidant. The modified petroleum resin is obtained by hydrolyzing silane monomers in a specific molar ratio to prepare an epoxy-terminated organic silicon oligomer and then chemically grafting the epoxy-terminated organic silicon oligomer with petroleum resin. The durability reinforcing agent is prepared by compounding nano silicon dioxide, elastic polymer micro powder and a silane coupling agent according to the mass ratio of (1-2): (1-2): 1. Through the synergistic effect of resin modification and the composite reinforcing agent, the coating has excellent wear resistance, high adhesive force, excellent low-temperature flexibility and lasting light reflection performance, and is controllable in cost, convenient to construct and wide in application prospect.

The invention relates to the technical field of PA resin, and particularly discloses glass fiber modified antibacterial PA resin suitable for children products and a preparation method of the antibacterial PA resin. The invention discloses glass fiber modified antibacterial PA resin suitable for children products. The glass fiber modified antibacterial PA resin comprises PA resin, glass fibers, talcum powder, nano calcium carbonate, a composite antibacterial agent, a compatilizer, an antioxidant and calcium stearate, the composite antibacterial agent comprises chitosan, an antibacterial peptide microcapsule and a porous silver-zinc-loaded antibacterial agent; the antibacterial peptide microcapsules are sodium alginate embedded antibacterial peptides. The antibacterial PA resin obtained in the invention has the highest bacteriostasis rates of 99.97%, 99.74% and 99.95% for staphylococcus aureus, escherichia coli and candida albicans respectively, the antibacterial property of the PA resin is improved, the compressive strength and notch impact strength are 170.6 MPa and 17.3 kJ / m < 2 > respectively, and high mechanical strength is maintained on the basis of high antibacterial property.

The invention discloses a high-wear-resistance modified polypropylene material and a preparation process thereof. The material comprises the following components in parts by weight: isotactic polypropylene, a beta nucleating agent, a heterofunctional hexagonal boron nitride nanosheet, an elastomer, an antioxidant system and a surface migration accelerant, one side of the nanosheet is treated by amino silane, and the other side of the nanosheet is treated by fluorine-containing silane. The material is prepared through twin-screw melt blending granulation and injection molding, in the molding process, variable mold temperature is adopted, contact pressure is applied to the surface of a product to promote directional migration and orientation of nanosheets in a cortex area, and then annealing is conducted. The Janus structure and the surface migration accelerant cooperate to realize a fluorine-containing low-surface-energy self-lubricating surface layer with an outward surface; the beta nucleating agent induces beta crystal formation to improve toughness. The scheme has the advantages of simple process and easily available raw materials, and is suitable for polypropylene products with higher wear resistance requirements, such as automotive interiors and household appliance shells.

The invention relates to the technical field of refractory materials, and provides a composite regenerated magnesia carbon brick and a preparation method thereof. The composite regenerated magnesia carbon brick is prepared from the following raw material components in parts by mass: 55 to 65 parts of waste magnesia carbon brick, 40 to 50 parts of fused magnesia, 7 to 10 parts of composite graphite, 3 to 5 parts of antioxidant and 4 to 7 parts of phenolic resin, the composite graphite is of a core-shell structure, and a core in the core-shell structure is magnesium oxide coated graphite; and the shell in the core-shell structure is 1, 3, 5-trimethoxybenzene. According to the technical scheme, the problem that the mechanical property of the composite regenerated magnesia carbon brick is poorer due to poorer wettability of phenolic resin on graphite in related technologies is solved.

The invention relates to the technical field of lubricating oil, and discloses a low-temperature-resistant lubricating oil composition and a preparation method thereof. Mineral oil, modified polymethacrylate, a dispersing agent, an antioxidant and an oil defoaming agent are stirred and mixed and then filtered, and the low-temperature-resistant lubricating oil composition is obtained. The cross-linking agent enables polymethacrylate to form a light cross-linked structure, and stress can be dispersed during shearing; nitrogen atoms in triazinyl, pyridyl, pyrrolidone and Mannich base structures serve as hydrogen bond receptors, the hydrogen bond interaction with hydroxyl on a polymethacrylate molecular chain is enhanced, a physical cross-linked network is formed, and the shear resistance is further improved; in the modified low-temperature-resistant monomer, the glass-transition temperature can be remarkably reduced by high flexibility of silicon oxygen bonds in long straight-chain alkyl and silane groups, so that a molecular chain can still move at a low temperature, and the low-temperature fluidity of the lubricating oil is improved; the cyclic structure of cyclohexyl can effectively interfere with the ordered arrangement of wax crystals, reduce the pour point of the lubricating oil and improve the low-temperature fluidity.

The application discloses an antioxidant coating and a preparation method thereof, and relates to the technical field of coatings. The application first uses hydroxybenzotriazole to esterify and modify acrylic acid, and then uses the modified acrylic acid to prepare modified acrylic resin coating. The benzotriazole structure has high hardness and rigidity, and also has good ultraviolet absorption performance, which can reduce the degradation of the acrylic resin caused by ultraviolet rays and further improve the durability of the coating. The microcapsule wall material is modified by a hydrophobic compound, and then a new type of microcapsule wall material is prepared by coating an antioxidant. The microcapsule wall material modified by the hydrophobic compound can effectively prevent external moisture and oxygen from entering the microcapsule, improve the stability of the coating in a humid environment, and protect the antioxidant in the core material from the influence of the external environment. The antioxidant is slowly and continuously released in the coating, and the oxidation reaction of the coating is effectively inhibited for a long time. The antioxidant coating prepared by the application has the effects of wear resistance and durability.

The invention discloses a colored permanent antistatic PETG material applied to 3D printing. The colored permanent antistatic PETG material comprises the following components in parts by weight: 50-80 parts of a PETG material, 5-20 parts of a PC material, 10-30 parts of a permanent antistatic agent, 5-15 parts of a reinforcing agent, 1-5 parts of a lubricant, 1-5 parts of a compatilizer, 0.1-0.5 part of a coupling agent, 0.1-0.4 part of a hindered phenol antioxidant, 0.1-0.4 part of a phosphite antioxidant, 0.1-0.4 part of a plasticizer and 0.1-0.4 part of toner. The composite material has the beneficial effects that a PETG / PC alloy modification mode is used, so that the heat resistance, the mechanical property and the interlayer adhesive force of the PETG composite material are improved; the high-molecular permanent antistatic agent is used, so that the antistatic capacity of the material is improved under the condition that the color of PETG is not influenced, and the problem that a conventional carbon nanotube / conductive carbon black modified antistatic PETG material cannot be subjected to color matching is solved.

The invention discloses a cable with a co-extrusion self-foaming ceramic fireproof layer and a preparation method of the cable, and belongs to the technical field of polyolefin cables. The cable comprises a conductor, an insulating layer and a fireproof layer from inside to outside, comprising the following raw materials: 40-60 parts of an ethylene-vinyl acetate copolymer, 20-40 parts of a polyolefin elastomer, 20-30 parts of a ceramic precursor filler, 5-10 parts of a compatilizer, 5-10 parts of a cosolvent, 3-5 parts of a flexibilizer, 2-4 parts of a main foaming agent, 1-2 parts of an auxiliary foaming agent, 1-3 parts of a lubricant and 0.5-1.5 parts of an antioxidant. The compatilizer is siloxane containing sulfydryl and phosphaphenanthrene groups, and the flexibilizer is silane coupling agent modified quartz fibers containing double bonds. In a matrix of the ethylene-vinyl acetate copolymer and the polyolefin elastomer, the compatilizer and the flexibilizer are added, so that the fireproof layer is endowed with better impact resistance and flame retardance.

The invention discloses an infrared barrier PVB (polyvinyl butyral) intermediate film and a preparation method, and relates to the technical field of environmental functional glass materials, the intermediate film comprises 60-75 parts of polyvinyl butyral resin, 25-35 parts of a plasticizer, 0.5-3 parts of nano tin antimony oxide, 0.1-0.5 part of an ultraviolet absorbent, 0.05-0.2 part of an antioxidant and 0.1-0.5 part of a dispersant, the preparation method comprises the steps of nano infrared blocking agent pre-dispersion, mixing, twin-screw extrusion molding, tape casting cooling, surface treatment and the like, the surface-modified nano tin antimony oxide is introduced as the infrared blocking agent, infrared radiation at the wave band of 780-1300 nm is effectively blocked, the infrared blocking rate reaches 85% or above, the visible light transmittance is larger than 80%, the technology is mature and stable, the cost is low, and the preparation method is suitable for industrial production. The prepared intermediate film can be applied to building and automobile laminated glass, and the heat insulation and energy saving effects are achieved.

The invention discloses a modified polylactic acid high-temperature-resistant degradable composite material and a preparation method thereof, and relates to the technical field of degradable materials. The modified polylactic acid high-temperature-resistant degradable composite material at least comprises the following raw materials in parts by mass: 70-80 parts of polylactic acid; 15 to 25 parts by mass of a lignin-polylactic acid-polycaprolactone block copolymer; 5 to 10 parts by mass of poly (butylene adipate-co-terephthalate); 2-5 parts by mass of stearic acid modified nano silicon dioxide; 0.3 to 0.8 part by mass of an anti-hydrolysis agent; and 0.2 to 0.5 part by mass of an antioxidant. According to the prepared modified polylactic acid high-temperature-resistant degradable composite material, the mechanical property and the high temperature resistance of the polylactic acid composite material are improved, the degradation rate can be regulated and controlled through the proportion of all the components, and the use requirements of different scenes are met.

The invention relates to the field of high polymer materials, and particularly discloses a high-temperature-resistant and aging-resistant polypropylene insulating material and a preparation method thereof.The polypropylene insulating material is prepared from 70-90 parts of polypropylene, 15-25 parts of ethylene-propylene copolymer, 5-8 parts of nanometer functional filler, 0.5-2 parts of antioxidant, 1-3 parts of stabilizer and the like. The nano functional filler is prepared by wrapping core nano zinc oxide with a boron nitride-based composite shell layer. The polypropylene insulating material prepared in the invention has good high temperature resistance and aging resistance.

The invention discloses an ultrahigh-temperature and high-salinity water-based guanidine gum fracturing fluid and a preparation method thereof. The guanidine gum fracturing fluid is prepared from a base fluid, a buffering agent, a cage-shaped molecule composite cross-linking agent and a gel breaker according to the mass ratio of 100: (0.1 to 0.6): (0.2 to 0.8): (0.01 to 0.08), the base solution is prepared from the following components in percentage by weight: 0.55 to 0.6 percent of a cyclodextrin modified thickening agent, 0.1 to 0.6 percent of a composite antioxidant, 0.4 to 0.8 percent of a multi-effect auxiliary agent, 0.1 to 0.2 percent of a sterilizing agent and the balance of hypersalinity water. According to the ultrahigh-temperature hypersalinity water-based guanidine gum fracturing fluid, through chemical modification of the guanidine gum thickening agent and synergistic interaction of various additives, the ultrahigh-temperature hypersalinity water-based guanidine gum fracturing fluid can resist the temperature of 200 DEG C, can be directly prepared by using hypersalinity water, realizes good fracture forming, sand carrying, temperature resistance and shearing resistance, and is low in filtration loss and damage; and the requirements of fracturing construction of ultra-deep ultra-high-temperature low-permeability reservoirs of offshore and onshore oil fields are met.

The invention provides a binder system for beryllium-titanium alloy powder injection molding and application, and relates to the technical field of metal powder injection molding. The adhesive system consists of the following components in percentage by weight: 76 to 84 percent of polyformaldehyde, 7 to 9 percent of high-density polyethylene, 5 to 7 percent of ethylene-vinyl acetate copolymer, 3 to 5 percent of paraffin, 0.1 to 0.5 percent of stearic acid, 0.1 to 1.5 percent of polyethylene glycol and 0.1 to 1 percent of BASF antioxidant. The feed preparation method based on the system comprises the steps of powder pretreatment, binder preparation, banburying mixing and cooling granulation, and uniform coating and dispersion of beryllium-titanium powder can be achieved. According to the system, the problems that in beryllium-titanium alloy injection molding, powder is prone to oxidation, poor in fluidity and low in size precision are solved, the viscosity of the prepared feed at 180 DEG C is 88-101 Pa.S, and the oxygen content is smaller than or equal to 0.24 wt%; the relative density of a finished product is larger than or equal to 96.5%, the size precision is + / -1% / in-+ / -2% / in, and the method is suitable for industrial production of beryllium-titanium alloy complex parts in the fields of spaceflight and nuclear energy.

The application discloses a preparation method of a hollow fiber exchange membrane and the hollow fiber exchange membrane, and the preparation method comprises the following steps: stirring and melting poly(4-methyl-1-pentene), a diluent, an antioxidant and an anti-volatilization agent at 220 DEG C to 280 DEG C to obtain a casting solution; extruding and spinning the casting solution through a spinneret to form a hollow fiber, then passing through an air gap to enter a cooling liquid to solidify to obtain a semi-finished product membrane; placing the semi-finished product membrane into an extracting agent to remove the diluent in the semi-finished product membrane through extraction; and drying the semi-finished product membrane after the diluent is removed to obtain the hollow fiber exchange membrane. The preparation method of the hollow fiber exchange membrane adds the antioxidant and the anti-volatilization agent into the diluent, solves the problems of discoloration and decomposition of the diluent caused by high temperature during high-temperature mixing and extrusion molding of the casting solution, the size, gas flux and mechanical properties of the prepared membrane are more stable, and the prepared hollow fiber exchange membrane has a better membrane structure and better performance.

The invention provides an electroplating solution and an electroplating method for preparing an antimony-containing tin-based alloy packaging bump structure. The content of antimony atoms in the bump structure is 0.1-8.0%; the electroplating liquid comprises tin (II), antimony (III), an inhibitor, methanesulfonic acid and an antioxidant; the concentrations of the tin (II), the antimony (III), the inhibitor, the methanesulfonic acid and the antioxidant in the electroplating solution are 15-60 g / L, 0.01-8.0 g / L, 0.5-15.0 g / L, 20-200 mL / L and 1.0-3.0 g / L in sequence. The electroplating solution can effectively realize co-deposition of tin ions and antimony ions, and the situation that the deposition rate is not matched in the deposition process due to the electrochemical characteristic difference of tin and antimony is overcome; the content of antimony atoms in the generated bump structure is 0.1-8.0%, and a small amount of metal antimony is added into a tin base, so that grains can be refined, the crystal face of a plating layer can be promoted to obtain excellent surface flatness, and the hardness of the plating layer can be effectively improved.

The invention provides a formula of sleep-aiding essential oil containing cedar himalaya, relates to the technical field of sleep-aiding essential oil, and aims to solve the problems of single effect, poor stability and insufficient skin tolerance of existing sleep-aiding essential oil. The formula comprises the following components in parts by weight: 0.5-5 parts of Himalaya cedar essential oil, 80-95 parts of base oil, 1-10 parts of synergistic sleep-aiding essential oil, at least one of lavender essential oil, chamomile essential oil and sandalwood essential oil, and 0.1-1 part of optional antioxidant. During preparation, the components are ensured to be uniform through a process of stirring at a constant temperature of 25-35 DEG C and mixing at a rotating speed of 200-300rpm, the pH value of the product is 5.5-7.0, the retention rate of the active components is greater than or equal to 90% after the product is stored in a dark place at 25 DEG C for 6 months, and the use mode is that the product is smeared on wrists / necks / soles 1-2 hours before sleep, and 0.5-2mL of the product is smeared on each time. Tests show that the sleep time of insomnia people can be shortened to 15-22 min after the essential oil is continuously used for 28 days, the PSQI score is reduced by 40%-54%, the skin irritation is zero, the essential oil is suitable for preparing external sleep-aiding essential oil cream, ball bottles and other products, and a safe and efficient solution is provided for sleep disorder people.

Recipe for a double microencapsulated powder, characterized in that the recipe comprises the following components in parts by weight: 5-60 parts by weight of core material of group A, 5-40 parts by weight of core material of group B, 5-16 parts by weight of protein shell material, 3-19 parts by weight of polysaccharide shell material, 0.1-2 parts by weight of immobilizing enzyme, 1-10 parts by weight of filler, 1-4 parts by weight of pH regulator and 0-2 parts by weight of antioxidant.

The invention belongs to the technical field of plant care essential oil extraction, and particularly relates to sanshool delayed care essential oil and a preparation method thereof. The invention discloses a sanshool-enriched lipid composition which is prepared from the following components in parts by weight: 0.05 to 0.1 part of sanshool-enriched fraction, 1 to 2 parts of solid lipid, 1 to 1.5 parts of liquid lipid, 1.5 to 2.5 parts of stable surfactant, 1 to 2 parts of cosurfactant, 3 to 5 parts of glycerol, 0.2 to 0.5 part of soothing anti-irritation component, 0.05 to 0.1 part of sodium hyaluronate, 0.1 to 0.3 part of hydroxypropyl methyl cellulose, 0.05 to 0.1 part of antioxidant and the balance of purified water. According to the invention, sanshool is used as a core functional factor, and through collaborative design of supercritical extraction, molecular distillation purification, NLC carrier encapsulation and a soothing film-forming system, contradictions of effectiveness, mildness and the like in an existing scheme are solved, and mild desensitization, stable controlled release, reduction of stimulation and migration risks and improvement of tolerance and action consistency are realized.

A curable resin composition contains quantum dots (A), a resin (B), a photopolymerizable compound (C), a photopolymerization initiator (D), an antioxidant (E), a leveling agent (F), and a solvent (G), wherein the resin (B) has a weight-average molecular weight in terms of polystyrene of less than 10000 and an acid value of 90 mg KOH / g or more and 150 mg KOH / g or less.

The invention belongs to the technical field of wear-resistant materials, and particularly relates to a wear-resistant flexible material for an LED lamp strip and a preparation method of the wear-resistant flexible material. The invention discloses a PVC (polyvinyl chloride) material which is prepared from the following raw materials in parts by mass: 80-110 parts of PVC resin, 2-4 parts of a methyl methacrylate-butadiene-styrene copolymer, 0.5-1.5 parts of methyl vinyl silicone rubber, 0.3-0.5 part of a maleic anhydride grafted polyethylene octylene elastomer, 0.5-1 part of modified nano silicon dioxide, 2-3 parts of epoxidized soybean oil, 1-2 parts of dioctyl adipate, 3-5 parts of a heat stabilizer and 0.3-0.5 part of butyl stearate. 0.1-0.3 part of an antioxidant and 1-3 parts of an acrylate processing aid. The PVC resin is used as a base material, the flexible silicone rubber is used as an auxiliary material, material performance optimization is achieved through cooperation of the raw materials such as the plasticizer and the heat stabilizer, and the performance such as flexibility, abrasion resistance and heat stability of the material is guaranteed.

The invention belongs to the technical field of oil field gas channeling plugging agents, and discloses a high-molecular pre-crosslinked gel particle plugging agent suitable for a carbon dioxide drive oil reservoir and a preparation method of the high-molecular pre-crosslinked gel particle plugging agent. The raw materials comprise an acrylamide monomer, sodium bentonite, an acrylic monomer, an acid-resistant functional monomer, a temperature-resistant and salt-resistant functional monomer, a first cross-linking agent, a second cross-linking agent, an initiator, an inorganic reinforcing agent, an antioxidant and water. The prepared acid-resistant gel particle is good in temperature resistance, salt resistance and acid resistance and long in effective period of action, the viscosity of a system is increased after the particle swells for a certain time, the plugging capacity is enhanced, and the acid-resistant gel particle can be used as an excellent CO2 drive reservoir gas channeling plugging agent and is used for plugging a heterogeneous formation with developed micro-cracks.

The invention belongs to the field of seawater desalination separation membrane preparation, and particularly relates to a preparation method and application of a seawater desalination reverse osmosis membrane with oxidation resistance. The preparation process of the reverse osmosis membrane for seawater desalination is adjusted, and a micromolecular antioxidant containing a phenolic hydroxyl group and a tert-butyl structure is introduced in a swelling-embedding manner after interfacial polymerization is completed, so that on one hand, the oxidation resistance of the reverse osmosis membrane is improved, and on the other hand, the embedding of the micromolecular antioxidant makes up for the defects of a polyamide layer; the desalination and boron removal capabilities are improved. The antioxidant capacity of the polyamide can be improved under the condition that the desalting capacity of the polyamide is not sacrificed. The seawater desalination reverse osmosis membrane prepared by the method provided by the invention has higher oxidation resistance and better desalination and boron removal capabilities than an original membrane.