409 results about "Phosphorus pentoxide" patented technology

The present invention belongs to the technical field of glass preparation, and specifically relates to an ultra-white glass and a preparation method thereof. The ultra-white glass of the present invention is composed of the following raw materials by weight: 110 parts of quartz sand, 18-20 parts of sodium carbonate, 14-16 parts of colemanite, 4.5-5.5 parts of magnesia, 2.6-2.8 parts of calcined alumina, 1.1-1.3 parts of potassium oxide, 0.8-1.0 parts of zinc oxide, 1.5-1.7 parts of phosphorus pentoxide, 0.15-0.20 parts of strontium chloride, 0.3-0.34 parts of calcium fluoride, 0.25-0.27 parts of barium nitrate, and 0.16-0.18 parts of zirconium oxide. The ultra-white glass of the present invention has a synergistic effect between the raw materials to ensure that the prepared ultra-white glass has excellent whiteness and visible light transmittance.

The invention relates to the technical field of coatings, and discloses a preparation method of a water-based acrylic acid anticorrosive coating, which comprises the following steps: taking PEPA and phosphorus pentoxide as raw materials to obtain double-PEPA-based phosphate; the preparation method comprises the following steps: by taking 3-hydroxyglutaric acid, aminopropyltriethoxysilane, hexamethylene diisocyanate, graphene oxide and the like as raw materials, preparing disilane modified graphene oxide; adding the disilane modified graphene oxide, the double PEPA-based phosphate and the like into the water-based acrylic emulsion, uniformly stirring and mixing, grinding and filtering to obtain the water-based acrylic anticorrosive coating. Phosphorus hydroxyl, silicon hydroxyl and graphene in the coating are used for synergistically assisting in improving the adhesive force and corrosion resistance of the coating, and flame retardant elements are used for improving the flame retardant property of the coating. The water-based acrylic acid anticorrosive paint prepared by the invention has excellent corrosion resistance, flame retardance and adhesive force.

The invention relates to a low-temperature graphite negative electrode material and a preparation method thereof, and belongs to the technical field of high polymer materials. According to the prepared low-temperature graphite negative electrode material, firstly, the surface of graphite is pre-oxidized through potassium persulfate, phosphorus pentoxide and concentrated sulfuric acid, and then under the action of sodium nitrate, potassium permanganate and hydrogen peroxide, graphite oxide is prepared; then, ammonium molybdate hydrate and thioacetamide are used as a molybdenum source and a sulfur source, graphite oxide is used as a supporting material, a molybdenum disulfide-graphite compound is synthesized, and the conductivity and the cycling stability are improved; secondly, the surface of the negative electrode is coated with amorphous resin carbon / nickel oxide, so that the ion diffusion efficiency of the low-temperature graphite negative electrode material is enhanced, and the electrochemical lithium storage performance is improved in a low-temperature environment; and finally, the surface of the amorphous resin carbon / nickel oxide is coated with a layer of polythiophene film, so that the rate capability of the negative electrode material is improved due to large surface area and high pores.

The invention discloses a hyperbranched water reducing agent for high-tensile wet joint UHPC (Ultra High Performance Concrete) as well as a preparation method and application of the hyperbranched water reducing agent, and belongs to the technical field of concrete admixtures. The preparation method comprises the following steps: mixing pentaerythritol and maleic anhydride, adding a catalyst p-toluenesulfonic acid, and carrying out an esterification reaction to prepare an esterification product; carrying out amidation reaction on the esterification product, diethanol amine and a catalyst sodium ethoxide to obtain a prepolymer; acrylic acid, maleic anhydride and the prepolymer are dissolved in deionized water, an initiator ammonium persulfate is added for a free radical copolymerization reaction, and a main chain polymer is obtained; carrying out phosphorylation reaction on the main chain polymer and phosphorus pentoxide to obtain a phosphorylated main chain polymer; the phosphorylated main chain polymer, methoxypolyethylene glycol and a catalyst p-toluenesulfonic acid are subjected to an etherification reaction, a hyperbranched comb-shaped polymer water reducing agent solution is obtained and then subjected to aftertreatment, and the water reducing agent is prepared. According to the hyperbranched comb-shaped polymer water reducing agent prepared by the preparation method disclosed by the invention, the problems of poor flowability and high viscosity of ultra-high performance concrete (UHPC) are solved by combining a linear side chain of a comb-shaped structure and a three-dimensional branch of hyperbranched topology.

The invention discloses a comb-type polyphosphate polymeric dispersant and a preparation method thereof, the dispersant is prepared by preparing a phosphate monomer from acrylate and phosphorus pentoxide, then copolymerizing the phosphate monomer with phenyl alkene or alkyl alkene, and finally adding alkali liquor for neutralization. A phosphate-polyether bifunctional side chain is introduced to a main chain, a phosphate group provides electrostatic repulsion, and a polyether group enhances steric hindrance, so that the dispersing agent can meet the requirements of strong adsorption and long-range stability at the same time, and a more durable and effective stabilizing effect is provided for a dispersion system.

The invention relates to the technical field of phase change materials, in particular to an intrinsic flame-retardant solid-solid phase change material and a preparation method and application thereof. The invention provides an intrinsic flame-retardant solid-solid phase change material which is prepared from the following raw materials in parts by mass: 65-75 parts of polyethylene glycol, 7-17 parts of epoxy resin and 18-33 parts of a flame retardant, the flame retardant is prepared from phosphorus pentoxide, expanded graphite and melamine; the epoxy resin comprises epoxy resin glue and an epoxy curing agent. The intrinsic flame-retardant solid-solid phase change material can solve the technical problems that a phase change material is easy to leak and easy to burn.

The invention provides a thermal response self-ceramization fireproof coating and a preparation method thereof. The thermal response self-ceramization fireproof coating is prepared from the following raw materials in parts by mass: 3 to 10 parts of acrylic monomer, 3 to 10 parts of organic sulfonate, 1 to 4 parts of silane coupling agent, 0.5 to 3 parts of silicate ester, 4 to 6 parts of ceramic precursor, 3 to 6 parts of fluxing agent and 0.05 to 0.4 part of initiator. The fluxing agent comprises a component A and a component B, the component A is one of boric oxide, zinc borate or low-melting-point glass powder, and the component B is one of phosphorus pentoxide and ammonium polyphosphate. The silane coupling agent can be copolymerized with an acrylic monomer to construct a C-C main chain, the C-C main chain and silicate ester are subjected to hydrolytic condensation to form a Si-O-Si three-dimensional network, a chemical cross-linked skeleton is formed, and the chemical cross-linked skeleton can generate silicon dioxide at high temperature to participate in a ceramization reaction; the ceramic precursor and silicate ester can form a strong physical cross-linking effect, so that the fireproof coating with a chemical and physical double-cross-linked network can be formed, and the fireproof coating has excellent mechanical property and machinability at normal temperature.

The invention belongs to the field of pesticide and chemical fertilizers, and particularly discloses a granular slow-release water-soluble fertilizer and a preparation method thereof.The granular slow-release water-soluble fertilizer is prepared from, by weight, 2-5 parts of a slow-release material and 60-70 parts of an element water-soluble fertilizer; wherein the element water-soluble fertilizer comprises liquid ammonia, phosphorus pentoxide, sulfuric acid, zinc sulfate, potassium sulfate, ammonium nitrate phosphorus and monoammonium phosphate; the sustained-release material comprises lignin and PLA, and the granular sustained-release water-soluble fertilizer is high in quick-acting property, less in permeation loss and long in drug release time.

The invention discloses an ardealite-based slow release fertilizer and a preparation method thereof, the ardealite-based slow release fertilizer comprises: a core layer, the core layer comprises ardealite and a complex microbial inoculant; in the phosphogypsum, the content of fluoride is less than or equal to 0.1 wt%, and the content of phosphorus pentoxide is more than or equal to 0.1 wt%; the complex microbial inoculants comprise phosphorophilic bacteria; and the material of the coating layer comprises a scene response material. Therefore, according to the ardealite-based slow release fertilizer, the utilization rate of ardealite can be effectively increased, and meanwhile, the slow release performance of the slow release fertilizer is further optimized.

The invention relates to the technical field of chemical preparation, in particular to a preparation method of phosphorus trifluoride, which comprises the following steps: step 1, preparing reactants: preparing phosphorus pentoxide and pure fluorine gas; 2, mixing reactants: in a proper reaction container, mixing phosphorus pentoxide with pure fluorine gas; step 3, controlling the reaction conditions of reactants: ensuring that the reaction is carried out at proper temperature and pressure so as to promote the smooth proceeding of the reaction; and 4, separating the product to obtain phosphorus trifluoride. The method comprises the following steps: putting phosphorus pentoxide into a dry container, preparing a storage tank filled with fluorine gas, putting the prepared phosphorus pentoxide into a reaction container, introducing the dry fluorine gas from the storage tank, carrying out a reaction at high temperature and high pressure, and after the reaction is completed, adding the fluorine gas into the reaction container, phosphorus trifluoride and a byproduct oxyfluoride are separated through a physical method (distillation or condensation), so that the process is simple, and the reaction conversion rate is high.

The invention discloses an intrinsic flame-retardant solid-solid phase change material and a preparation method thereof and a battery module adopting the phase change material. The preparation method comprises the following steps: fully reacting a molten phase change substance with hydroxyl with boric acid and phosphorus pentoxide to generate a phase change substance 1 with a boric acid phosphate structure; the preparation method comprises the following steps: adding expanded graphite and phosphoric acid flame retardant powder into a phase-change substance 1, uniformly stirring, adding melamine into a molten mixture, quickly stirring, uniformly mixing the phase-change substance 1 and melamine, reacting to generate a phase-change substance 2 grafted with melamine, and performing post-treatment to obtain the solid-solid phase-change material. The solid-solid phase change material prepared by the preparation method disclosed by the invention has non-flammability and can resist leakage.

The invention provides a preparation method and application of a catalyst for selective production of ethanethiol. The catalyst comprises an active component, an auxiliary agent and a molded alumina carrier, the active component comprises the following components in percentage by mass: 5-10% of VIII group transition metal oxide and 15-20% of VIB group metal oxide, and the auxiliaries comprise 0.5-4% of alkali metal, 1-3% of alkaline earth metal oxide, 0.6-2% of cerium oxide and 1-4% of phosphorus pentoxide. A bifunctional catalyst with moderate Lewis acid-base sites is constructed by compounding a multi-component aid and an active component, and the catalyst shows excellent catalytic activity that the ethylene conversion per pass is greater than or equal to 98%, the ethanethiol selectivity is about-95% and the ethanethiol yield is-90% under the reaction conditions that the hydrogen sulfide / ethylene feeding mass ratio is 3-5, the temperature is 180-210 DEG C, the pressure is 0.5-1.0 MPa and the volume space velocity is 200-300 h <-1 >. And the catalyst can stably run for 1250 hours or more.

A glass-ceramic article comprises silica, lithia, phosphorus pentoxide, and zirconia in amounts that, when heat treated, provide a glass-ceramic including a lithium disilicate (L2Si2O5) crystalline phase. The glass-ceramic may have high fracture toughness, transparency, hardness, and may be strengthen via ion-exchange.

The invention relates to a process for preparing a phosphor copper rod by using a phosphonate-amide composite purifying agent as a quenching aid, and belongs to the technical field of non-ferrous metallurgy. Phosphorus pentoxide and sodium carbonate are mixed and decocted into fused salt, the fused salt is cooled and ground and then added into a corundum crucible together with scrap copper to be rapidly heated, compressed air is blown in, and slagging-off is conducted after heat preservation and standing; blowing mixed gas into the melt for reduction refining; adding calcium boride into the melt for refining; the refined copper liquid is subjected to continuous casting and continuous rolling; rapidly immersing the phosphorus copper rod subjected to continuous casting and rolling into a quenching aid solution, and carrying out quenching treatment; and the quenched phosphor copper rod is blow-dried and dried, and the high-conductivity phosphor copper rod is obtained. The high-purity phosphorus copper rod prepared by the method is excellent in key indexes of copper content, phosphorus content and conductivity, and meets the expected requirements of high purity and high conductivity.

The invention discloses a toughened glass ceramic and a preparation method thereof, and relates to the technical field of glass ceramics, and the toughened glass ceramic comprises the following components in percentage by weight: 64 to 68 weight percent of silicon dioxide, 22.67 to 26.5 weight percent of lithium oxide, 0.9 to 1.2 weight percent of antibacterial agent, 0.8 to 1.1 weight percent of modified mica powder, 1.98 to 2 weight percent of aluminum oxide, 1.78 to 1.8 weight percent of potassium oxide, 1.68 to 1.7 weight percent of zirconium dioxide, 1.19 to 1.2 weight percent of phosphorus pentoxide and 1 to 3 weight percent of calcium fluoride. According to the toughened glass ceramic and the preparation method thereof, a multi-scale anti-cracking network is formed through macroscopic crack deflection of mica and nanoscale phase change toughening of zirconium oxide, the fracture toughness is remarkably improved, zirconium oxide agglomeration can be reduced through interface optimization of modified mica powder, zirconium oxide is dispersed more uniformly, and the phase change potential is further exerted; due to high-temperature stability of aluminum oxide, antibacterial agent particles can be wrapped, and excessive volatilization or aggregation of the antibacterial agent particles in the sintering process is prevented; aluminum oxide is used as a'protective shell 'to delay the Cu < 2 + > release rate and realize long-acting antibiosis.

The preparation method comprises the following steps: taking para aminobenzoic acid, 3, 3-diaminobiphenyl and phosphorus pentoxide as raw materials, and carrying out high-temperature dehydration cyclization reaction in a polyphosphoric acid solvent to obtain a diamine monomer containing biimidazole; the preparation method comprises the following steps: adding a bis-imidazole-containing diamine monomer, 2-(4-aminophenyl)-5-aminobenzoxazole and an organic solvent into a reactor, stirring and dissolving, after the solution is clarified, adding pyromellitic dianhydride, stirring and reacting, and after the reaction is completed, obtaining a polyamide acid membrane casting solution; and carrying out film casting on the polyamide acid film casting solution, drying at low temperature, and transferring to a muffle furnace to carry out imidization reaction after solvent volatilization is finished, so as to obtain the bis-imidazole polyimide film. The biimidazole polyimide film constructed by the invention is applied to a flexible OLED substrate, and has relatively good thermal performance and mechanical performance.

The invention discloses a flexible temperature-resistant PBO polymer and a preparation process thereof.The preparation process comprises the steps that polyphosphoric acid is heated and then fed into a degassing kettle, 4, 6-diamino resorcinol hydrochloride, aromatic dicarboxylic acid and phosphorus pentoxide are added into the degassing kettle, degassing is conducted in the degassing kettle, prepolymerization and defoaming are conducted after degassing is completed, and a prepolymer material is obtained; the preparation method comprises the following steps: preparing a pre-polymer material, pressing the pre-polymer material into a screw extruder through a hydraulic machine, carrying out post-polymerization reaction on the pre-polymer material in the screw extruder, filtering through a filter, defoaming to obtain a post-polymer material, extruding the post-polymer material from a mold, and washing with water to obtain the flexible temperature-resistant PBO polymer. The PBO polymer prepared by the invention has temperature resistance similar to that of para-position PBO, but has lower requirements on preparation conditions, higher solubility in a polyphosphoric acid system and better processability of a polymerization stock solution, and the PBO polymer has the potential of being used for preparing low-cost ultrahigh-temperature-resistant paper or clothing fibers.

The invention relates to the field of preparation of water-soluble fertilizers, in particular to an organic microelement water-soluble fertilizer and a preparation method thereof. The method comprises the following steps: fermenting wine brewing vinasse to obtain vinasse fermentation liquor; evaporating and concentrating the vinasse fermentation liquor to obtain concentrated liquor; the concentrated solution is added into a reaction kettle to be stirred, nitrogen, phosphorus pentoxide, potassium oxide and a suspending agent are sequentially added in the stirring process to obtain a mixed solution, and the stirring time is 2 hours; grinding the mixed solution by using a shear type colloid mill to obtain a liquid fertilizer; and conveying the liquid fertilizer to a filling line for filling to obtain the finished water-soluble fertilizer. Further, the collected solution state image can be subjected to image analysis by using a computer vision technology based on deep learning, and whether each component in the mixed solution is uniformly distributed or not is judged based on color distribution characteristics and texture distribution characteristics of the solution state, so that the automatic and intelligent control of the grinding process is realized.

The invention provides a phosphate ester water-based polymer as well as a preparation method and application thereof. The phosphate ester water-based polymer is prepared by polymerizing the following monomers: monovinyl ether, a vinyl benzene monomer, allyl polyoxyethylene methyl terminated polyether and phosphorus pentoxide. The phosphate water-based polymer can be used for dispersing water-based nano titanium dioxide and can be used for preparing titanium dioxide dispersion liquid with low particle size, narrow distribution and good stability.

A battery is provided comprising a coated sintered cathode. The coated sintered cathode comprises at least one of lithium cobalt oxide (LiCoO2) or NMC (LiNi(1-x-y)MnxCoyO2). The coated sintered cathode also comprises a coating layer. The coating layer comprises at least one of aluminum oxide (Al2O3), aluminum fluoride (AlF3), zinc oxide (ZnO), magnesium oxide (MgO), titanium dioxide (TiO2), lanthanum oxide (La2O3), zirconium oxide (ZrO2), gallium oxide (Ga2O3), magnesium fluoride (MgF2), molybdenum trioxide (MoO3), selenium (Se), or phosphorous pentoxide (P2O5). The coating layer is coated on the sintered cathode by atomic layer deposition. The sintered cathode may form a cathode-electrolyte interface inside the battery, and the coating layer may be positioned at the cathode-electrolyte interface.

The invention relates to the technical field of modified carbon graphite materials, and particularly discloses an antioxidant modified carbon graphite material and a preparation method thereof, the antioxidant modified carbon graphite material comprises the following raw materials by weight: 30-34 parts of medium temperature pitch, 4-6 parts of modified silica sol and 10-12 parts of artificial graphite powder; from two aspects, firstly, the aluminum dihydrogen phosphate and the boric acid aqueous solution are added, the aluminum dihydrogen phosphate can promote the asphalt to form a denser and firmer glassy carbon structure during carbonization, and phosphorus pentoxide generated by decomposition of the aluminum dihydrogen phosphate and boron oxide generated by dehydration of boric acid can generate a glass phase with an anti-oxidation effect; secondly, core-shell particles are added, a shell layer of the core-shell structure is an aluminum hydroxide structure generated by hydrolyzing aluminum nitrate nonahydrate, and an inner core is epoxidized nano silicon carbide; through the synergistic effect of the two, the mechanical property and the oxidation resistance of the carbon-graphite material are improved.

The present invention provides a thermo-oxidative aging resistant polyester material and a preparation method thereof, and relates to the technical field of polyester materials, the thermo-oxidative aging resistant polyester material is prepared from the following raw materials by weight: 100 parts of a functional polycondensate, 0.5-1 part of phosphorus pentoxide, 0.3-0.5 part of polyphosphoric acid, 0.8-1.5 parts of an antioxidant, 0.5-0.8 part of a lubricant, 1-3 parts of a coupling agent, 20-30 parts of reinforcing fibers, 1-3 parts of 1, 3, 4-trimethyl-1, 3-pentanediol monoisobutyrate, and 1-3 parts of an antioxidant. 1 to 3 parts of 1, 3, 5-triglycidyl-S-triazinetrione, and 3 to 5 parts of 1-amino-8-naphthol-3, 6-disulfonic acid; the functional polycondensate is prepared from 5-hydroxyisophthalic acid, 2, 3, 5, 6-tetrafluoroterephthalyl alcohol and N, N '-bis (2-hydroxyethyl) piperazine through a condensation polymerization reaction. The material has the advantages of favorable thermo-oxidative aging resistance, favorable mechanical properties, favorable flame retardancy and long service life.

The invention discloses heat-resistant ammonium polyphosphate with ultrahigh polymerization degree and a synthesis method thereof. The method comprises the following steps: (1) preparing ammonium polyphosphate: S1, mixing phosphorus pentoxide and diammonium hydrogen phosphate, stirring to react, and introducing ammonia gas to react; s2, mixing phosphoric acid with melamine for reaction, supplementing phosphoric acid, and stirring for reaction; s3, when the temperature in the first-step reaction is 280-300 DEG C, stopping introducing the ammonia gas, adding a product obtained in the step S2, supplementing diammonium hydrogen phosphate, and introducing the ammonia gas to continue the reaction; (2) end sealing; (3) pre-curing; and (4) mixing and dissolving epoxy resin and a curing agent, and then coating the surface of the pre-cured ammonium polyphosphate with the mixture. The initial polymerization degree of the ammonium polyphosphate can be improved, the initial molecular weight of the ammonium polyphosphate is higher, the application capacity of the ammonium polyphosphate in a humid and hot environment can be improved after modification treatment, especially when the ammonium polyphosphate is soaked in hot water at the temperature of 80 DEG C for 4 h, the product does not separate out or migrate, and the stability of the flame-retardant effect of the product is guaranteed.

The invention discloses bacteriostatic and antibacterial lithium disilicate glass ceramic and a preparation method thereof. The bacteriostatic and antibacterial lithium disilicate glass ceramic comprises the following components in percentage by weight: 60-70% of lithium disilicate whiskers, 5-12% of a nucleating agent, 1-5% of aluminum oxide, 1-4% of calcium oxide, 5-10% of an antibacterial agent and 12-18% of fluorapatite, wherein the nucleating agent is formed by compounding phosphorus pentoxide and zirconium oxide, and the antibacterial agent is formed by compounding silver oxide and zinc oxide; the invention relates to the technical field of lithium disilicate glass ceramics. In the glass ceramic, silver ions can be combined with groups such as sulfydryl and amino in bacterial cells to interfere the metabolic process of bacteria and inactivate enzymes of the bacteria so as to inhibit growth and reproduction of the bacteria, and zinc ions can influence permeability of bacterial cell membranes and destroy physiological functions of the bacteria and cooperate with the silver ions to enhance the antibacterial effect of the glass ceramic.

The present invention generally relates to a process for fabricating Chloro Alkali Phosphate Doped / Codoped by rare earth ions for optical laser amplifiers. The process includes mixing 38-42 wt. % of Phosphorus pentoxide (P2O5), 28-32 wt. % of Zinc oxide (ZnO), 9-11 wt. % of Barium fluoride (BaF2), 17-19 wt. % of Lithium chloride (LiCl), and 1-3 wt. % of Lead(II) fluoride (PbF2); filling a silica, platinum, and alumina crucible to the mixture; heating the mixture upon increasing a furnace temperature to 1000-1050° C. at a rate of 10° C. per minute and maintaining it for two hours to melt the glass; and pouring the glass melt into a preheated stainless steel mold at 350° C. and transferring the mold to a holding furnace heated to 350-370° C. and annealing for two hours thereby cooling to room temperature to obtain Chloro Alkali Phosphate matrix glass that is undoped, doped, or codoped with high thermal stability.

The invention provides a bio-organic fertilizer for improving the quality and yield of citrus and a preparation method thereof, and belongs to the technical field of organic fertilizer preparation. The biological organic fertilizer for improving the quality and yield of citrus is obtained by taking the animal waste, the plant fiber and the peanut meal as main raw materials through multiple times of fermentation, and can improve the content of organic matters in soil, increase the number and variety of beneficial microorganisms in the soil, promote root growth and improve the utilization rate of the fertilizer; therefore, the growth of the citrus is promoted. The raw materials also contain the quick lime, the phosphorus pentoxide, the potassium oxide and the like, so that nutrient substances are provided for the citrus, the effect of improving the soil is also achieved, and the absorption of the citrus is further promoted. The bio-organic fertilizer prepared by the invention can obviously improve the quality of the citrus and improve the soluble sugar content and the Vc content in the citrus.

Glass compositions, which can provide glass that can be formed with a reduced carbon footprint. Some embodiments of the glass can include between about 1.5 mole percent (mol %) alumina (Al2O3) and 5 mol % Al2O3 and between 5 mol % silica (SiO2) and 45 mol % SiO2 and between 35 mol % phosphorus pentoxide (P2O5) and 50 mol % of P2O5. Embodiments can also include modifiers. Embodiments can also include coloration agents or other elements. The glass compositions can be used to make different types of glass articles.

The application provides a sulfide solid electrolyte and a preparation method thereof, and particularly relates to the technical field of secondary batteries. The sulfide solid electrolyte is a lithium phosphorus oxysulfide, and the chemical formula of the lithium phosphorus oxysulfide is Li7P3S 7.5+x‑5y O 3.5‑x+5y ; wherein, 0<=x<=3.5, 0<=y<=1.5, -7.5

The invention discloses a high-strength acrylate rubber material and a preparation method thereof, and relates to the technical field of high polymer materials. When the high-strength acrylate rubber material is prepared, polyhydroxy imidazolium salt and phosphorus pentoxide react to prepare a functional flame retardant; reacting the pre-modified glass fiber with hydrazine hydrate to obtain modified glass fiber; the preparation method comprises the following steps: carrying out solution polymerization on ethyl acrylate, butyl acrylate, acryloxy propyl bis (trimethylsiloxy) methylsilane and glycidyl methacrylate to prepare acrylate raw rubber; the high-strength acrylate rubber material is prepared by uniformly mixing acrylate raw rubber, the modified glass fiber, a functional flame retardant and triphenyl phosphine, plastifying and thin-passing. The high-strength acrylate rubber material prepared by the invention has excellent flame-retardant, antibacterial, anti-aging and mechanical properties.

The invention provides a synthesis method of an OLED polycyclic fused thiophene compound, and relates to the technical field of material synthesis, and the synthesis method comprises the following steps: providing and mixing 2-naphthalene sulfonic acid and dichloromethane, dropwise adding an N-bromosuccinimide solution into the mixture under the protection of inert gas, and reacting to obtain an intermediate A; dissolving the intermediate A, then adding sodium hydroxide, 4-bromophenylboronic acid, water and tetrakis (triphenylphosphine) palladium, and reacting to obtain an intermediate B; dissolving the intermediate B, adding sulfonic acid and phosphorus pentoxide, and reacting to obtain an intermediate C; adding the intermediate C into tetrahydrofuran, dissolving, adding lithium aluminum hydride under inert gas, and reacting to obtain a target compound. According to the method, the chemical reaction efficiency of the intermediate C is high, and the yield and LC purity of a target product are relatively high.