292 results about "Benzole" patented technology

The invention discloses a modified polysiloxane coating for a stainless steel pot and a preparation method of the modified polysiloxane coating, and belongs to the technical field of polysiloxane coatings. Comprising the following raw materials in parts by weight: 60-70 parts of hydroxyl polydimethylsiloxane, 20-30 parts of acrylate resin, 15-20 parts of ethanol, 25-30 parts of deionized water, 6-18 parts of modified nano aluminum oxide, 2-4 parts of a friction reducing agent, 0.2-0.4 part of benzophenone and 1-3 parts of a flatting agent. Polysiloxane is used as a main component, so that the coating is endowed with excellent heat resistance; wherein the antifriction agent can improve the wear resistance of the coating; wherein the leveling agent improves the surface flatness of the coating; wherein the modified nano aluminum oxide has good compatibility with polysiloxane, is not easy to agglomerate in the coating, has good dispersity, and can greatly improve the heat resistance, hardness and easy-to-clean property of the coating; the performance is stable and the service life is long; the method has important application value in the technical field of polysiloxane coatings.

The invention discloses a flame-retardant insulating powder coating for a new energy automobile and a preparation method of the flame-retardant insulating powder coating, and belongs to the technical field of coatings. The flame-retardant insulating powder coating for the new energy automobile is prepared from the following raw material components in parts by mass: 380 to 384 parts of epoxy resin, 56 to 58 parts of a toughening agent, 5 to 10 parts of modified flame-retardant filler, 100 to 101 parts of a composite curing agent, 5 parts of a flatting agent, 1 part of benzoin and 0.7 part of an accelerant, the toughening agent is obtained by carrying out a reaction on an isophorone diisocyanate tripolymer, 4-bromophenol and N-p-coumaroyl tyramine; the modified flame-retardant filler is obtained by firstly wrapping hexagonal boron nitride with polydopamine and then modifying with a silane coupling agent; the silane coupling agent is obtained by combining 4-benzonitrile oxygen butyl trimethoxy silane and a sulfydryl silane coupling agent; and the composite curing agent is obtained by combining 4, 4-diaminodiphenylmethane and amino-sulfydryl functional organic polysiloxane.

The invention belongs to the technical field of coatings, and relates to a polysiloxane epoxy hybrid environment-friendly coating and a preparation method thereof. The coating belongs to an environment-friendly solvent type coating with low VOC content, modified epoxy resin is adopted as a base, auxiliaries such as a film-forming agent and a dispersing agent are added, and benzophenone and tertiary amine composite photoinitiator is supplemented, so that the prepared coating has good corrosion resistance, high temperature resistance and the like, and the coating can quickly form a film at normal temperature and under the UV illumination condition, shortens the curing period, and is suitable for large-scale popularization and application. The emission of VOC (volatile organic compounds) is reduced.

The invention relates to the technical field of reaction kettles, and discloses a reaction kettle device for synthesizing benzohydroxamic acid, the reaction kettle device comprises a reaction kettle body and a stirring structure arranged at the top of the reaction kettle body, a discharging pipe is arranged at the discharging end of the reaction kettle body, and supporting legs are arranged on the outer wall of the bottom of the reaction kettle body; three mounting plates distributed in an annular array are fixedly mounted on the inner wall of the reaction kettle body, a driving screw rod is rotationally mounted on the top surface of each mounting plate, the top end of each driving screw rod penetrates through the top surface of the reaction kettle body, and a guide frame is in threaded connection with the outer wall of each driving screw rod; when the feeding cylinder rotates, the transmission shaft is in intermittent contact with the protruding block, negative pressure adsorption and quantitative discharge of auxiliary materials are achieved through vertical sliding of the piston plate and cooperation of the one-way valve, it is guaranteed that raw materials can be accurately injected according to needs through the structural design, errors caused by manual control adding are avoided, the accuracy of the reaction proportion is guaranteed, and the production efficiency is improved. And the product quality stability can be improved.

The invention relates to the technical field of high polymer materials, and discloses a low-VOC (volatile organic compound) polypropylene composite material and a preparation process thereof, the low-VOC polypropylene composite material comprises the following raw materials: polypropylene, maleic anhydride grafted polypropylene, fluorenyl silicone oil, benzophenone coated talcum powder, activated carbon, an antioxidant, a plasticizer and a lubricant; the interface bonding force between a siloxane long-chain flexible structure and a polypropylene matrix material is improved by preparing fluorenyl silicone oil, the thermal stability of the composite material is effectively improved by combining fluorene rings, thermal decomposition products are reduced, VOC components are physically adsorbed and captured through a multilevel porous structure of activated carbon, VOC volatilization can be effectively reduced, and the environmental protection capacity of the composite material can be enhanced. Meanwhile, benzophenone-coated talcum powder is added into the polypropylene composite material matrix, so that the wear resistance and ultraviolet resistance of the polypropylene composite material matrix are enhanced, and the service life of the polypropylene composite material is effectively prolonged.

The invention discloses modified silicon dioxide microspheres for high performance liquid chromatography and a preparation method of the modified silicon dioxide microspheres, and relates to the technical field of chromatographic packing. When the modified silicon dioxide microspheres for the high performance liquid chromatography are prepared, firstly, (perfluorohexyl) benzene reacts with isophthaloyl dichloride to prepare a perfluorohexyl benzophenone compound; the preparation method comprises the following steps: reacting a perfluorohexyl benzophenone compound with hydrazine hydrate to prepare a perfluorohexyl hydrazone compound; carrying out catalytic decomposition on the perfluorohexyl hydrazone compound to prepare a hydrophobic modified diazo compound; preparing monodispersed non-porous silicon dioxide microspheres by using a sol-gel method; modifying the non-porous silicon dioxide microspheres by an etching template method to prepare mesoporous core-shell silicon dioxide microspheres; and reacting the mesoporous core-shell silicon dioxide microspheres with a hydrophobic modified diazo compound to prepare the modified silicon dioxide microspheres for high performance liquid chromatography. The prepared modified silicon dioxide microspheres for high performance liquid chromatography have the advantages of monodisperse particle size, large specific surface area, small back pressure and high column efficiency.

The invention discloses an anti-ultraviolet automobile window film and a preparation method thereof, and relates to the field of high polymer materials. When the anti-ultraviolet automobile window film is prepared, methylcyclotetrasiloxane, octamethylcyclotetrasiloxane, 3-glycidyl propyl (dimethoxy) methylsilane and 1, 3-bis (3-aminopropyl)-1, 1, 3, 3-tetramethyldisiloxane are subjected to a reaction, and modified polysiloxane is prepared; the preparation method comprises the following steps: reacting benzo [1, 2-d: 5, 4-d '] bis (oxazole)-2, 6-dithiol with 4-aminobenzoyl chloride to prepare a modified ultraviolet absorbent; isophorone diisocyanate, polytetrahydrofuran ether glycol, the modified polypyrrole particles, the modified polysiloxane and the modified ultraviolet absorbent are subjected to a reaction, and the reaction product is spread in a mold. The anti-ultraviolet automobile window film prepared by the invention has good anti-ultraviolet, heat-insulating, flame-retardant and anti-aging properties and good mechanical properties.

The invention discloses a preparation method of a low-chlorine composite environment-friendly coal transportation anti-freezing agent, and belongs to the technical field of anti-freezing solutions. The anti-freezing solution is used for solving the technical problems of complex components and poor anti-freezing and metal corrosion resistance of the anti-freezing solution for coal transportation in the prior art. The preparation method of the low-chlorine composite environment-friendly coal transportation anti-freezing agent comprises the following step: uniformly mixing the compound pour point depressant, the modified corrosion inhibitor, the thickening stabilizer and the industrial water to prepare the low-chlorine composite environment-friendly coal transportation anti-freezing agent. The compound pour point depressant comprises an organic pour point depressant and an inorganic pour point depressant; the organic pour point depressant is obtained by reacting unsaturated azole, sodium methallyl sulfonate and fumaric acid; the unsaturated nitrogen is obtained by reaction of an intermediate B and benzaldehyde, and the intermediate B is obtained by reaction of triazole and ethyl chloroacetate; the modified corrosion inhibitor is obtained by carrying out a reaction on potassium thiocyanate, benzoyl chloride and chitosan vanillin Schiff base. The anti-freezing solution prepared by the invention has the advantages of moderate fluidity, good metal corrosion resistance and good anti-freezing performance.

The invention discloses a transparent polyurethane elastomer and a preparation method thereof, and relates to the technical field of polyurethane elastomers, the preparation method comprises the following steps: carrying out vacuum dehydration on polytetrahydrofuran ether glycol-2000 and polytetrahydrofuran ether glycol-1000 for later use; the preparation method comprises the following steps: preheating a reaction container, adding isophorone diisocyanate and benzoyl chloride, uniformly stirring, adding polytetrahydrofuran ether glycol-2000 and polytetrahydrofuran ether glycol-1000, and carrying out heat preservation reaction to obtain a polyurethane prepolymer; uniformly stirring polyether polyol N330, a chain extender, dibutyltin dilaurate, silicone oil, a defoaming agent, an antioxidant and an ultraviolet light absorber, carrying out vacuum degassing, adding into the polyurethane prepolymer, uniformly stirring, pouring into a mold, curing, molding and demolding to obtain the transparent polyurethane elastomer.

The invention relates to the technical field of nano-composite water-based resin system design and function coordinated regulation and control, in particular to environment-friendly high-gloss wear-resistant water-based epoxy floor paint and a preparation method thereof. The environment-friendly high-gloss wear-resistant water-based epoxy floor paint is prepared from self-emulsifying water-based epoxy resin emulsion, a modified water-based epoxy curing agent containing biguanidyl and the like; the preparation method comprises the following steps: carrying out synergistic modification on a three-dimensional composite wear-resistant filler containing nano silicon dioxide-carbon nanotube-graphene through a silane coupling agent and dopamine; the light response type composite light stabilizer is compounded by a titanium dioxide grafted hindered amine light stabilizer and a benzophenone light stabilizer; a phase change temperature adjusting microcapsule and a nano-silver-chitosan antibacterial agent can also be added, so that multiple functions are realized. According to the floor paint disclosed by the invention, through an innovative formula and process, wear resistance, luster and weather resistance are remarkably improved, and toughness and crack resistance are enhanced; and the preparation method is environment-friendly and efficient, meets the requirements of multiple scenes, and has high economic value.

The invention relates to a preparation method and device of 2-phenylimidazoline and an obtained product. The method comprises the following steps: adding benzonitrile, ethidene diamine and a catalyst into a reaction kettle, heating the reaction kettle to a reaction temperature in an inert gas atmosphere, starting a reaction, timing from 80 DEG C when the temperature is automatically increased to 155-180 DEG C, preferably 160-170 DEG C and is not increased any more, and reacting for 4-12 hours, preferably about 5-10 hours, after the reaction is finished, carrying out vacuum distillation on the reaction kettle, the product is obtained from the bottom of the reaction kettle (1), the material ratio is that the molar ratio of benzonitrile to ethylenediamine is 1: (1.03-1.20), and the molar ratio of the addition amount of the catalyst to ethylenediamine is (0.004-0.01): 1. The cyanobenzene is almost completely converted, the conversion rate is greater than 99.9%, and the residual quantity of cyanobenzene in the product is less than 0.01%, which is far superior to that of the existing production process.

The invention belongs to the technical field of preparation of adsorption separation functional materials, and discloses a controllable preparation method and application of an S-COFs nanosheet adsorbent. According to the method, 2, 5-dimethyl sulfide terephthalaldehyde DMTTPA and 1, 3, 5-tris (4-aminophenyl) benzene TAPB are taken as monomers, cyanobenzene is taken as a reaction solvent, benzoic acid is taken as a catalyst, aniline is taken as a competitor, and the high-crystallinity S-COF adsorbent is controllably prepared under the condition of high temperature by accurately regulating and controlling crystallization time and combining a dialysis purification technology. The method not only realizes controllable morphology, but also greatly improves the adsorption performance. The method has important economic value in the field of precious metal recovery, the problems of precious metal resource waste and environmental pollution in electronic waste can be effectively solved, and meanwhile, a new thought is provided for designing a low-cost high-performance adsorbent.

The invention belongs to the technical field of organic synthesis, and particularly relates to a preparation method of octocrylene serving as a main component of a sun-screening agent. The invention provides a preparation method of octocrylene serving as a main component of a sun-screening agent, which comprises the following steps: dissolving benzophenone in a polar aprotic solvent, adding zinc powder, heating to 50-70 DEG C under an inert condition, and dropwise adding 2-bromo-2-ethyl cyanoacetate for reaction to obtain a solution containing an intermediate etocrylene; under an ice bath condition, acidifying the solution containing the intermediate etocrilene by using a protonic acid aqueous solution, adding isooctanol, and slowly heating to 15-30 DEG C for reaction; and after the reaction is finished, extracting, washing, drying, filtering and concentrating the reaction liquid to obtain the octocrylene. According to the preparation method, reaction steps are reduced, the preparation process is simple, the operation method is convenient and fast, high-purity octocrylene can be obtained without purifying an intermediate, and large-scale industrial production is facilitated.

The application belongs to the technical field of cable materials, and discloses a cold-resistant and anti-cracking type special cable made of silicone rubber, which comprises a conductor cable core, an inner protective sleeve and an outer protective sleeve from inside to outside, wherein the raw materials of the outer protective sleeve comprise end-vinyl diphenyl siloxane, methyl vinyl siloxane, silane modified nano silicon dioxide, polyborosiloxane, an inhibitor, hydroxyl silicone oil, modified anti-ultraviolet polyurethane, a platinum catalyst and tetra(dimethylsiloxane) silane; diphenyl siloxane with a diphenyl side chain is selected as a main chain, and the modified anti-ultraviolet polyurethane is grafted to effectively destroy the structural regularity, inhibit low-temperature crystallization and prevent cable cracking; 4,4'-diamino benzophenone with anti-ultraviolet function is used as a chain extender and benzotriazole is used as an end-capping agent to be grafted into the polyurethane chain, so that the anti-ultraviolet capacity can be improved and migration can be avoided.

The present invention relates to a process for the preparation of a compound of formula (I), a stereoisomer, a salt, a hydrate or a solvate thereof, (II) comprising the step of sulfinylation of a compound of formula (IV) to produce compound of formula (II); (IV) wherein: R1 and R2 are as defined in the claims, wherein said sulfinylation step is performed in the presence of a solvent selected from the group comprising benzene, toluene, ethylbenzene, xylene, chlorobenzene, bromobenzene, fluorobenzene, anisole, nitrobenzene, tetralin, dichlorobenzene, trimethylbenzene, ethylacetate, propylacetate, butylacetate, propanol, butanol, 2- methyltetrahydrofuran, diethylether, methyltertbutylether, cyclopentyl methyl ether, dichloromethane, tetrachloromethane, pentane, hexane, heptane, cyclohexane, decaline and mixtures thereof.

The invention discloses a marine polyethylene insulated cable material and a preparation method thereof, and relates to the technical field of cable materials. According to the invention, the p-hydroxycinnamyl alcohol modified low-density polyethylene is taken as a core, and a rigid benzene ring is introduced, so that the anti-aging performance and the mechanical performance of the polyethylene cable material are remarkably improved; then polyimide is attracted by hydroxyl to coat the surface of the cable, so that the waterproof and corrosion-resistant performance of the cable is improved; and then blending with the modified filler and the 5-methoxy-2-methylphenol, so that the mechanical property of the cable is improved, and the corrosion resistance and the waterproof effect are realized at the same time. The modified filler takes prismatic barium sulfate particles as a raw material, so that the mechanical property of a polymer is remarkably improved, and the ageing resistance of the cable material is enhanced by matching with barium sulfate; and 4-methacryloxybenzophenone and ethylene are polymerized to form an anti-ultraviolet liquid with certain viscosity, and barium sulfate particles are in different orientations under ultrasonic oscillation by virtue of the viscosity of the anti-ultraviolet liquid, so that the mechanical property and photo-thermal aging resistance of the cable are improved.

The invention discloses a supercritical foaming shoe sole and a preparation method thereof, and relates to the technical field of foaming materials, the foaming shoe sole is prepared from the following components by weight: 80-100 parts of TPU, 20-30 parts of calcium carbonate, 2-10 parts of N-hydroxymethyl acrylamide, 4-12 parts of modified graphene oxide, 1-5 parts of zinc stearate, 1-5 parts of dimethylaminobenzene, 1-5 parts of vinyl cyclooctene, 0.1-1 part of an antioxidant 1010, and 0.1-1 part of benzophenone; the obtained product has excellent foaming uniformity and weight reduction effect, and keeps good mechanical property balance; the shoe material not only shows excellent wear resistance and durability, but also has remarkable antibacterial and deodorant effects, and effectively solves various problems of traditional foaming soles in practical application.

The invention relates to the technical field of transportation, and discloses a benzohydroxamic acid production raw material continuous and accurate conveying device which comprises two cases and a conveying pipeline connected between the cases, a chain running circularly is arranged in the conveying pipeline, a plurality of discs are installed on the chain at intervals, and a feeding port and a plurality of discharging assemblies are arranged on the conveying pipeline. The discharging assembly comprises two connecting pipes used for being connected with the conveying pipeline. The discharging pipe is fixedly mounted on the two connecting pipes; the two connecting semi-rings are mounted in the discharging pipe in a sliding manner; the first permanent magnet is fixedly mounted on the connecting half ring; according to the continuous and accurate conveying device for the benzohydroxamic acid production raw materials, the first electromagnet is externally arranged on the discharging pipe, opening and closing of a connecting semi-ring are remotely controlled through magnetic force, a mechanical transmission part does not need to penetrate through the pipe wall, the discharging pipe is kept totally closed, even if the first electromagnet is overhauled, the air tightness of the interior of the discharging pipe cannot be affected, and the service life of the discharging pipe is prolonged. And moisture invasion is avoided.

The invention relates to the technical field of ketone processing, in particular to a multifunctional treatment box for synthesizing 2-fluoro-benzophenone.The multifunctional treatment box comprises a processing treatment box, and a plurality of sets of processing treatment cavities used for synthesizing 2-fluoro-benzophenone are arranged in the processing treatment box from top to bottom; the processing treatment cavity comprises a mixing and dissolving reaction cavity which moves up and down along the upper side area in the processing treatment box, and a contact heating cavity and a water bath cooling cavity which are fixed in the processing treatment box are separately arranged on the upper side and the lower side of the mixing and dissolving reaction cavity at intervals; the bottom of the water bath cooling cavity is communicated with a washing cavity for washing the cooled solution in a pressing manner, the bottom of the washing cavity is communicated with a separation cavity for separating the washed solution, and the bottom end of the separation cavity is communicated with a concentration cavity for rotationally evaporating the separated solution in a control manner; the bottom end of the concentration cavity is communicated with a purification cavity in an automatic detection opening and closing manner. The treatment box can be used for automatically processing ketone in an energy-saving manner, and meanwhile, the low-cost operation is kept.

The invention relates to the technical field of polyurethane foam preparation, and discloses polyurethane foam for a heat insulation strip and a preparation method of the polyurethane foam. The polyurethane foam is prepared from the following raw materials in parts by weight: 40 to 60 parts of polytetrahydrofuran ether glycol, 10 to 15 parts of modified monomer, 1 to 5 parts of ethylenediamine, 1 to 5 parts of hydroxyethyl methylacrylate, 60 to 80 parts of diphenylmethane diisocyanate, 3 to 5 parts of modified filler, 0.3 to 0.5 part of benzophenone and 10 to 15 parts of n-pentane. Double bonds on hydroxyethyl methylacrylate can react with sulfydryl on the surface of the modified filler, then a cross-linked network is formed in the material, the foam structure is more uniform and stable by limiting molecular chain movement and reducing gas diffusion and heat conduction paths, and the closed-cell rate of the foam can be increased by matching with a multi-layer coated hollow structure of the modified filler, so that the thermal conductivity of the foam is improved. And gas diffusion is reduced, so that the long-term stable heat insulation effect is maintained.

The utility model discloses a production device for controlling the content of benzohydroxamic acid, which comprises a kettle body with a heat exchange jacket, a circulating pump, a reflux discharge pipe, a reflux feed pipe, a motor and a mixing screen plate, the feed pipe is positioned at the upper part of the kettle body, the discharge pipe is positioned at the bottom of the kettle body, the reflux feed pipe horizontally penetrates through the side surface of the kettle body and is positioned at the upper part of the kettle body, and the motor is positioned at the bottom of the kettle body. The backflow discharging pipe horizontally penetrates through the side face of the kettle body and is located on the lower portion of the kettle body, the feeding end of the circulating pump is communicated with the backflow feeding pipe, the discharging end of the circulating pump is communicated with the backflow discharging pipe, and a plurality of discharging ports are formed in the portion, located in the kettle body, of the backflow discharging pipe. An output shaft of the motor extends into the kettle body and is fixedly connected with the material mixing screen plate, the material mixing screen plate is positioned above the backflow discharging pipe, and the material mixing screen plate is formed by mutually crossing and connecting a plurality of corrugated grid bars in a staggered manner. According to the utility model, raw materials for producing benzohydroxamic acid are subjected to circular mixing reaction, so that the reaction progress is promoted, and the yield and the purity are improved.

This invention discloses a high-efficiency mixing device for materials in a benzoyl hydroxamic acid reactor, belonging to the field of material mixing and reaction technology. It includes a support base and a reactor body connected to it via a support frame. The upper end of the reactor body has a feed inlet, and the lower end has a discharge outlet. A valve for controlling the opening and closing of the discharge outlet is installed. A servo motor is mounted on the upper end of the reactor body via a motor frame, and a shaft tube is installed on the drive end of the servo motor. This invention not only achieves transverse stirring by synchronously rotating the shaft tube and the stirring tube, but also changes the radius of transverse stirring, thereby improving stirring efficiency. Furthermore, it achieves longitudinal stirring through the rotation of the gas-dispersing impeller, further enhancing stirring efficiency. Simultaneously, during the stirring process, an inert gas at a certain temperature can be introduced into the reactor, thereby changing the reaction temperature within the reactor and contributing to improving the efficiency and effectiveness of the benzoyl hydroxamic acid synthesis reaction.

The utility model discloses a rectification device for producing m-chlorobenzoyl chloride, which comprises a lower tower body, a support ring plate connected with the inner wall of the bottom of the lower tower body, a spring arranged at the top of the support ring plate, a movable ring plate connected with the top end of the spring and capable of sliding up and down along the inner wall of the lower tower body, and a tower plate, the two tower plates are mounted in the supporting annular plate and the movable annular plate, and the adjusting assembly is connected with the inner wall of the lower tower body, located above the movable annular plate and used for adjusting the distance between the two tower plates. According to the utility model, the shifting plate is shifted forwards or reversely, so that the middle tower body rotates synchronously, and the pressing rod is screwed out downwards or screwed in upwards under the transmission of the inner gear ring, the gear and the rotating rod, so that the distance between the two tower plates is controllable, the tower plates can adapt to process conditions with different loads, the separation effect of benzoyl chloride is ensured, the rectification effect is greatly enhanced, and the production efficiency is improved. Therefore, the production efficiency of the m-chlorobenzoyl chloride is indirectly improved.

The invention discloses a degradable dynamic cross-linked silicone rubber composition and a preparation method thereof, and belongs to the technical field of organic silicon materials. The composition is prepared from the following components in parts by mass: 100 parts of methyl vinyl silicone rubber raw rubber, 10 to 30 parts of dynamic cross-linking agent (siloxane copolymer containing disulfide bonds), 10 to 30 parts of biodegradable block (polycaprolactone-siloxane copolymer), 3 to 10 parts of modified cellulose nanocrystal, 0.1 to 2 parts of photosensitizer (benzophenone derivative) and 0.05 to 0.5 part of platinum catalyst. The dynamic cross-linking agent is an addition product of tetra (3-mercaptopropyl) siloxane and diacrylate siloxane, and the disulfide bond density of the dynamic cross-linking agent is 2-5 mmol / g. According to the invention, through the synergistic effect of the dynamic disulfide bond and the polycaprolactone block, efficient self-repairing and controllable enzymatic / photopromoted degradation of the material at room temperature are realized. After the nanocrystalline of the modified cellulose is introduced, the tensile strength is greater than 8.5 MPa, and the elongation at break reaches 680%.

This invention discloses a flame-retardant and anti-aging cable composite material and its preparation method, belonging to the field of cable material preparation technology. In this invention, a flame-retardant, high-temperature resistant polysiloxane containing double bonds, an anti-aging agent, and a flame-retardant filler are prepared and blended with raw materials such as EVA and low-density polyethylene. Irradiation causes cross-linking between the materials, endowing the composite material with heat resistance, aging resistance, and good mechanical properties. The anti-aging agent of this invention includes siloxane groups and benzophenone groups, possessing good resistance to both UV aging and heat aging, which is beneficial for further improving the anti-aging performance of the prepared cable composite material. The flame-retardant filler of this invention has urethane bonds grafted onto its surface, which matches the polarity of the EVA vinyl acetate segments, improving the compatibility between the flame-retardant filler and EVA, and further enhancing the flame retardancy of the prepared composite cable material.

The invention discloses a preparation method and application of a fluorine-sulfur synchronous removal collector in a magnetite concentrate, wherein step 1 selects 50 80 parts of oleic acid, 10 20 parts of benzohydroxamic acid, and 0 10 parts of lauric acid, and the formed mixture is added to a reaction vessel to carry out saponification reaction; step 2, the saponified product obtained in step 1 is stirred and mixed with xanthate and black medicine to obtain a final collector, which is used for reverse flotation desulfurization and defluorination of magnetite concentrate. The present invention provides a method for preparing a flotation collector for synchronous desulfurization and defluorination of a magnetite concentrate having stable operation, economy, environmental protection, high efficiency and strong adaptability, and provides an application method of the flotation collector.

The present invention discloses an anti-aging overhead cable and a preparation method thereof, relating to the field of cables. The anti-aging overhead cable includes a conductor core, an insulating layer and a sheath layer from inside to outside; the insulating layer is made of cross-linked polyethylene, and the cross-linked polyethylene includes the following raw materials in parts by weight: 170-180 parts of low-density polyethylene, 10-12 parts of cross-linking agent, 8.5-10.5 parts of anti-treeing aging agent and 4-6 parts of antioxidant. The synthesized anti-treeing aging agent includes nano-magnesium oxide, benzophenone structure and terminal carbon-carbon double bond, which improves the mechanical properties, insulation properties and anti-treeing aging properties of the cable insulating layer. The synthesized antioxidant includes terminal carbon-carbon double bond, mesoporous silica, hindered phenol structure, thiophene ring and thioether group, making the cable insulating layer have persistent antioxidant aging resistance. Therefore, the anti-aging overhead cable of the present invention has excellent mechanical properties and anti-aging properties and has a long service life.

The utility model relates to the technical field of benzophenone hydrazone production, and discloses a proportioning device for producing benzophenone hydrazone, which comprises a barrel body, a control panel is arranged on the front side of the barrel body, a heat conducting plate is fixedly connected in the barrel body, the lower part of the heat conducting plate is fixedly connected with a motor, and the lower part of the heat conducting plate is fixedly connected with the motor. The output end of the motor is fixedly connected with a stirring assembly, the right side of the barrel body is fixedly connected with a supporting plate, the upper portion of the supporting plate is fixedly connected with an air extracting pump, the input end of the air extracting pump is fixedly connected with an air extracting pipe, the output end of the air extracting pump is fixedly connected with an air conveying pipe, and the left end of the air conveying pipe is fixedly connected with a heater. According to the reaction kettle, the raw materials in the barrel body are mixed, the reaction temperature can be controlled, the reaction is promoted, the reaction uniformity is ensured, the raw materials such as benzophenone and hydroxylamine are accurately added into the reaction kettle, and the accurate matching is ensured.

A sulfur-containing aromatic acrylate compound, its preparation method, and its applications are disclosed. The compound has a structure as shown in general formula (A), which integrates acrylate, benzophenone, and thioether functional groups in its molecular structure, adapting to the application requirements of various optical material raw materials. This invention also provides an efficient preparation process for this compound. Optical materials prepared using this compound as a monomer exhibit excellent aging resistance and anti-yellowing properties, as well as outstanding mechanical properties. Wherein, R1=CH2=CH-COO; R2=CH3; n=2 or 3, m=0, 1, or 2.