55 results about "Diphenyl phosphate" patented technology

The invention discloses a composite mineral admixture prepared from heat-stewed steel slag and a preparation method of the composite mineral admixture, and the mineral admixture is prepared from the following raw materials in parts by weight: 40-50 parts of heat-stewed steel slag powder, 20-30 parts of granulated blast furnace slag powder, 20-40 parts of fly ash, 0.01-0.1 part of a grinding aid and 0.5-4.0 parts of an exciting agent, wherein the grinding aid comprises glycerol and diethanol isopropanolamine, and the exciting agent comprises diphenyl phosphate, sodium sulfate and ammonium bicarbonate. The preparation method comprises the following steps: mixing calcium bicarbonate and water, spraying the mixture on high-temperature steel slag at 600-800 DEG C, carrying out hot braising under the condition of steam pressure of 0.2-0.5 MPa for 8-12 hours to pulverize the steel slag until the particle size is less than 5-10 mm, and carrying out vertical milling on the pulverized steel slag and a grinding aid for 20-40 minutes to obtain hot-braised steel slag powder; uniformly mixing the heat-stewed steel slag powder, granulated blast-furnace slag powder, fly ash, a grinding aid and an exciting agent in proportion to obtain mixed powder; and finally, grinding the mixed powder for 30-50 minutes by adopting a high-energy planetary ball mill to obtain the cement concrete composite mineral admixture with the specific surface area being greater than or equal to 600m < 2 > / kg. According to the invention, the potential hazard of poor stability of a cement concrete material caused by high f-MgO content in the steel slag is broken through, the steel slag is efficiently utilized to prepare a low-carbon green building material, a composite mineral admixture is developed, and the performance meets the II type requirement in JG / T 486-2015 Composite Admixture for Concrete.

The invention belongs to the technical field of high polymer materials, and particularly relates to a polyolefin composite material as well as a preparation method and application thereof. The polyolefin composite material is prepared from the following raw materials: polyethylene, a polyolefin toughening agent, a compound flame retardant and a filler, the melt index of the polyethylene at 190 DEG C / 2.16 kg is greater than or equal to 18 g / 10 min, and the bending modulus is less than or equal to 160 MPa; the polyolefin toughening agent is selected from at least one of an ethylene-propylene copolymer, an ethylene-butylene copolymer and an ethylene-vinyl acetate copolymer, and the melt index at 230 DEG C / 2.16 kg is greater than or equal to 9 g / 10 min; the compound flame retardant comprises tetrabromobisphenol S bis (2, 3-dibromopropyl) ether, antimony trioxide and hydroquinone bis (diphenyl phosphate), and the filler is at least one of talcum powder, barium sulfate and wollastonite. Through specific types of polyethylene, the polyolefin flexibilizer, the compound flame retardant and the filler, excellent flame retardance and toughness can be obtained.

This invention relates to the field of polyurethane foam materials, specifically, to a preparation process for an aging-resistant and flame-retardant polyurethane foam material. The preparation process includes the preparation of a composite flame retardant, the preparation of component A, and the preparation of the polyurethane foam material. This invention integrates the composite flame retardant into the cross-linked network of the polyurethane foam material via chemical bonds. The composite flame retardant is prepared by grafting a phosphorus-containing flame-retardant structure onto the cage-like polysilsesquioxane structure after a ring-opening reaction between the epoxy groups in glycidyl etheroxypropyl cage-like polysilsesquioxane or octacyclooxycyclohexylethyl cage-like polysilsesquioxane and the acidic hydroxyl groups in diphenyl phosphate. The composite flame retardant of this invention is less prone to migration, precipitation, or loss, and improves the rigidity and aging resistance of the polyurethane matrix through its rigid cage structure and benzene rings, thereby improving flame retardant performance while reducing adverse effects on the mechanical properties of the foam material.

The application discloses a PC / ABS alloy and a preparation method and application thereof, and belongs to the technical field of high polymer engineering plastics; the PC / ABS alloy provided by the application comprises the following components in parts by mass: 63-78 parts of PC, 8-22 parts of ABS, 5-13 parts of titanium white, 1-6 parts of bisphenol A-bis(diphenyl phosphate), 0.5-5.5 parts of indium tin oxide, 0.1-1.2 parts of carbon black and 0-8 parts of an auxiliary agent; the average particle size of the titanium white is 140-310 nm; and the average particle size of the carbon black is less than or equal to 22 nm. The product prepared by the application has excellent light-shielding high-reflecting white effect and good appearance, and excellent laser welding performance; thereby, the product can be widely applied to the preparation of paint-sprayed parts of automobile interiors and exteriors. Moreover, the preparation method of the PC / ABS alloy is simple in operation and is beneficial to actual production.

This invention discloses a method and application for constructing a dual-mode sensor for detecting diphenyl phosphate using smartphone-assisted surface molecular imprinting, belonging to the fields of biochemical analysis, functional nanomaterials, and life science technology. In the synthesis process, the solubility, selectivity, and photoinitiation efficiency of the target analyte during polymerization are optimized, and molecularly imprinted nanozymes (MIPs) for diphenyl phosphate are rapidly prepared using molecular imprinting technology. In the detection process, the peroxidase-like activity of Fe,N-CDs catalyzes the colorimetric reaction between H₂O₂ and 3,3,5,5-tetramethylbenzidine (TMB), and the internal filtering effect of oxTMB suppresses the fluorescence signal. Combined with a smartphone, dual-signal cross-validation is achieved, constructing a colorimetric-fluorescence sensor for detecting diphenyl phosphate. This sensor exhibits specific recognition selectivity and binding affinity for diphenyl phosphate, is simple to operate, and low in cost. It can achieve sensitive detection of diphenyl phosphate over a wide linear range, with a detection limit as low as 16 pg / mL, making it suitable for on-site analysis of trace DPH in complex aquatic environments.

The invention relates to a preparation method of solid bisphenol A-bis (diphenyl phosphate), which comprises the following steps: (1) carrying out esterification reaction on phosphorus oxychloride and bisphenol A in the presence of a catalyst; (2) adding phenol, and carrying out an end-capping reaction to obtain liquid bisphenol A-bis (diphenyl phosphate); and (3) dissolving the liquid bisphenol A-bis (diphenyl phosphate) in ethanol, freezing, and freeze-drying in vacuum to obtain the solid bisphenol A-bis (diphenyl phosphate). The solid bisphenol A-bis (diphenyl phosphate) obtained by the preparation method disclosed by the invention is convenient to store, has better performance in a flame retardant test, and can improve the mechanical properties of materials.

The invention discloses an imidazolyl lipid assembly as well as a preparation method and application thereof, and relates to the technical field of biomedical materials. The preparation method comprises the following steps: mixing diphenyl phosphate, alcohol and pyridine, and heating for reaction to obtain alkyl phosphate; mixing N, N-diethylethylenediamine, 5-imidazole formaldehyde and a solvent, carrying out a heating reaction in a protective atmosphere, then adding the alkyl phosphate, and continuing the heating reaction to obtain an imidazolyl lipid molecule; dissolving the imidazolyl lipid molecules in an organic solvent to obtain a mother solution; the imidazolyl lipid assembly is obtained from the mother liquor through a film hydration method. The imidazole-based lipid assembly constructed by the invention can utilize the imidazole group to destroy the normal structure of bacteria under the condition of no antibiotic load, and utilizes the catalytic action of the imidazole group to complete the destroy of a biological membrane matrix and an inflammation activation medium, so that the synergism of antibiosis and anti-inflammation is realized, and the imidazole-based lipid assembly has the effect of buffering local acidic pH.

This invention relates to the field of EPDM rubber technology, and discloses a modified graphene-reinforced EPDM rubber composite material and its preparation method, comprising 100 parts by weight of EPDM rubber, 1-1.4 parts by weight of antioxidant, 2-3 parts by weight of sulfur, 1-1.5 parts by weight of accelerator, 0.5-5 parts by weight of flame-retardant modified graphene, and 0.15-2 parts by weight of compatibilizer ethylene-vinyl acetate copolymer. The ethylene-vinyl acetate copolymer of this invention can act as a compatibilizer, enhancing the compatibility between the flame-retardant modified graphene and EPDM rubber, allowing graphene to play a better reinforcing role and significantly improving the material's hardness and other mechanical properties. The flame-retardant modified graphene contains a large number of diphenyl bisphosphate flame-retardant groups, acting as a phosphorus-containing flame retardant, giving the composite material better flame-retardant properties and exhibiting a higher limiting oxygen index.

The invention relates to the technical field of recycled asphalt mixtures, and particularly discloses a recycled asphalt mixture with good durability and a preparation method thereof. The invention discloses a recycled asphalt mixture with good durability. The recycled asphalt mixture is prepared from 60-80 parts of a waste asphalt mixture reclaimed material, 4-7 parts of new asphalt, 15-18 parts of a new aggregate, 2-5 parts of fibers, 3-7 parts of a regenerant and 2-5 parts of filler, wherein the regenerant is prepared from aromatic hydrocarbon oil, triethylene glycol di-2-ethylhexoate, 2-ethylhexyl diphenyl phosphate, dioctyl terephthalate, epoxidized soybean oil, dipropylene glycol methyl ether acetate, polymethylene polyphenyl polyisocyanate, oleic acid hydroxyethyl imidazoline, 0 erucyl amide and barium petroleum sulfonate. The recycled asphalt mixture provided by the invention can effectively resist generation of diseases such as ruts and cracks, the service life of a road is remarkably prolonged, and the maintenance cost of the road is reduced.

The invention relates to the technical field of petroleum and natural gas, in particular to a novel temporary plugging agent for fracture acidizing and a preparation method of the novel temporary plugging agent. The temporary plugging agent comprises the following raw materials: a PLGA substrate, a degradation accelerator, a physical foaming agent and a foaming aid, the degradation accelerator is diphenyl phosphate, the physical foaming agent comprises one of CO2, N2 and hydrocarbon, and the foaming aid is one or more of a nucleating agent, a foam stabilizer and a lubricant. According to the method, the PLGA substrate is prepared through polymerization reaction, and then the degradation accelerator, the physical foaming agent and the foaming promoter are added for foaming. The temporary plugging agent can be rapidly degraded, and the weight loss ratio within 48 hours is larger than or equal to 95%; the plugging agent has high plugging strength and low density, the density range is 0.9-1.1 g / cm < 3 >, the plugging agent can be uniformly dispersed in a fracturing fluid, can suspend for a long time and the like, and the purpose of improving the migration effect is achieved.

This invention relates to a method for preparing and applying a flame-retardant polyurethane elastomer. The flame-retardant polyurethane elastomer incorporates a network structure, benzene rings, diphenyl phosphate, and silicon-oxygen bonds, increasing the degree of crosslinking and improving mechanical and self-extinguishing properties. Furthermore, the rigid triazine ring structural units effectively enhance the interactions between molecular chains, forming reinforced hard-segment microregions; while the flexible siloxane chains, with their low surface energy, promote microphase separation. This synergistic effect gives the flame-retardant polyurethane elastomer excellent overall performance. The chain extender contains abundant nitrogen and silicon dual flame-retardant elements, which can release non-flammable gases and form a dense silicate layer during combustion, endowing the material with good self-extinguishing ability. The flame-retardant polyurethane elastomer of this invention has excellent recyclability and self-extinguishing properties, can be applied in encapsulation materials, and is environmentally friendly.

This invention provides a phosphorus-silicon synergistic flame-retardant coolant for immersion liquid cooling and its preparation method, belonging to the field of thermal safety technology for energy storage batteries. The preparation method of the phosphorus-silicon synergistic flame-retardant coolant for immersion liquid cooling includes adding diphenyl phosphate, allyl alcohol, a condensing agent, and an esterification catalyst to a reaction vessel under an inert atmosphere to carry out an esterification reaction, obtaining the intermediate allyl diphenyl phosphate; subsequently, adding 1,1,3,3-tetramethyldisiloxane and a platinum catalyst to the reaction system to carry out a hydrosilylation reaction; after the reaction, purification treatment is performed to obtain a siloxane-bridged phosphate; the obtained siloxane-bridged phosphate is added to a base mineral insulating oil, and a high-efficiency antioxidant is added, followed by uniform mixing to obtain the phosphorus-silicon synergistic flame-retardant coolant. This method can solve the problems of insufficient oxidation stability, easy increase in acid value, and difficulty in simultaneously achieving flame-retardant efficiency and long-term stability in existing coolants under long-term high-temperature operation.

The invention discloses a resin material for 3D printing and a preparation method thereof, and relates to the technical field of photosensitive resin materials. When the resin material for 3D printing is prepared, 3-isocyanate propyl methyl dimethoxy silane is blocked by p-nitrophenol, so that blocked 3-isocyanate propyl methyl dimethoxy silane is prepared; the preparation method comprises the following steps: carrying out condensation on blocked 3-isocyanate group propyl methyl dimethoxy silane, 3-mercaptopropyl methyl dimethoxy silane and hexamethyldisiloxane, so as to prepare blocked isocyanate group mercapto silicone oil; the preparation method comprises the following steps: loading a resorcinol bis (diphenyl phosphate) flame retardant on glass flakes modified by silane to prepare flame-retardant modified glass flakes; the preparation method comprises the following steps: reacting epoxy acrylate, blocked isocyanate sulfydryl silicone oil, acryloyl morpholine and a photoinitiator to prepare photosensitive resin, and compounding the photosensitive resin with flame-retardant modified glass flakes to prepare the resin material for 3D printing. The prepared resin has high mechanical property, flame retardant property and thermal stability.

In order to improve the high-temperature durability and safety of the lithium manganese iron phosphate battery, the invention provides the lithium manganese iron phosphate battery electrolyte and the lithium manganese iron phosphate battery, the electrolyte comprises an organic solvent, a lithium salt and an additive, and the additive comprises N, N-dimethyl sulfonamide and diphenyl phosphate. N, N-dimethyl sulfonamide and diphenyl phosphite are added into the electrolyte, and the N, N-dimethyl sulfonamide and diphenyl phosphite cooperate to inhibit dissolution of manganese ions in the lithium manganese iron phosphate battery, relieve swelling of the battery at high temperature, improve the high-temperature capacity retention ratio of the battery and prolong the high-temperature cycle life of the battery, so that the market competitiveness of the lithium manganese iron phosphate battery is improved; and a more reliable and efficient energy solution is provided for electric automobiles, energy storage systems and consumer electronics.

The application belongs to the technical field of electrician sleeves, and discloses a PVC electrician sleeve and a preparation method and application thereof, the PVC electrician sleeve comprises the following raw materials in parts by weight: 100 parts of PVC resin, 6-10 parts of toughening agent, 15-25 parts of flame retardant, 1-3 parts of heat stabilizer, 0.5-1.5 parts of lubricant and 0.1-0.8 parts of antioxidant; wherein the toughening agent comprises a core, a first shell layer formed on the surface of the core and a second shell layer formed on the surface of the first shell layer, and the core is a conjugated diene-(meth)acrylate copolymer; the flame retardant comprises an organic silicon flame retardant and bisphenol A bis(diphenyl phosphate). The PVC electrician sleeve of the application realizes the balance of high toughness, high transparency and flame retardant performance through the synergistic effect of PVC resin, a specific toughening agent system and a specific flame retardant system, and solves the contradiction between the toughness improvement and the transparency reduction of the traditional product.

This application discloses a lightweight PPO / PA foam material and its preparation method, relating to the field of polymer foam material technology. The method involves constructing a foaming composition using polyphenylene ether, polyamide 6, maleic anhydride-grafted polyphenylene ether, and epoxy-based reactive additives. After mixing and molding, the foam material is obtained through supercritical carbon dioxide saturation foaming and shaping. Further introduction of flame-retardant fillers composed of bisphenol A bis(diphenyl phosphate), melamine cyanurate amide, and zinc borate, as well as SiO2 aerogel or PTFE low-dielectric fillers, can yield flame-retardant, low-dielectric, and flame-retardant low-dielectric foam materials. The beneficial effects of this application are: it can maintain flame-retardant and low-dielectric properties while maintaining low-density mechanical properties, improve foaming stability and cell structure uniformity, enhance the overall structural continuity and comprehensive level of the molded body, and achieve synergy or combination of flame-retardant and low-dielectric functions.

The invention belongs to the field of functional polymers, and particularly relates to a high-toughness, repairable, recoverable and flame-retardant epoxy vitrimer and a composite material thereof. The epoxy vitrimer is obtained by reacting dithio-diphenyl diglycidyl ether, bisphenol A diglycidyl ether, isocyanuric acid tri [2-(3-mercaptopropionyloxy) ethyl ester] and dithio-diphenyl diphosphate diphenyl at the temperature ranging from room temperature to 90 DEG C or above, after being completely cured, the epoxy vitrimer shows the characteristic of high toughness, the elongation at break reaches 200% or above, and the epoxy vitrimer shows that damage can be repaired and the service life of the epoxy vitrimer is prolonged. And hot-pressing recycling and reshaping and flame-retardant characteristics can be realized. The high-toughness, repairable, recoverable and flame-retardant epoxy vitrimer composite material is obtained by reacting the epoxy vitrimer resin and silicon dioxide modified by dithio diphenyl phosphate diphenyl glycidyl ether at the temperature ranging from the room temperature to 90 DEG C or above; the epoxy vitrimer composite material shows the characteristic of high toughness after being completely cured, the elongation at break reaches 150% or above, and the epoxy vitrimer composite material shows the characteristics of being repairable in damage, capable of being recycled and reformed through hot pressing and flame-retardant.

The invention discloses a high-toughness polyester long fiber and a preparation method thereof, and relates to the technical field of synthetic fiber manufacturing. The high-toughness polyester long fiber is prepared from the following raw materials in parts by weight: 78 to 88 parts of modified polyethylene glycol terephthalate slices, 6 to 14 parts of poly (butylene succinate), 2.5 to 5.5 parts of modified nano hydroxyapatite, 0.3 to 0.6 part of an antioxidant 1076, 0.4 to 0.7 part of zinc stearate, 0.15 to 0.35 part of sodium diphenyl phosphate, 0.25 to 0.45 part of a silane coupling agent KH-560 and 0.1 to 0.3 part of alkyl sodium sulfonate. The raw materials of the high-toughness polyester long fiber are scientifically proportioned, the modified polyethylene glycol terephthalate and the poly (butylene succinate) cooperate with each other, and auxiliaries such as the modified nano-hydroxyapatite are matched, so that the toughness is greatly improved. The preparation process is fine, the process is standard, parameters are controllable, the product stability is good, the characteristics of oxidation resistance, good dispersity and the like are achieved, and the application prospect is wide.

The application relates to an indole derivative obtained by converting quinoline nitrogen-oxide and a synthesis method of the indole derivative, the chemical structural formula of the derivative is shown as formula 2; the synthesis method is as follows: quinoline nitrogen-oxide, dimethyl acetylene dicarboxylate and water are used as reaction raw materials and are added into 1,2-dichloroethane solvent, a first heating stirring reaction is carried out under the catalysis of diphenyl phosphate, after TLC monitoring shows that the conversion of quinoline nitrogen-oxide of formula 1 compound is complete, trichloroacetic acid and molecular sieve dehydrating agent are added, a second heating stirring reaction is carried out, the reaction is monitored until complete through TLC, the solvent is evaporated, and then purification is carried out to obtain the indole derivative. The method has the advantages of high atom economy, mild reaction condition, green, low cost, high conversion rate and the like, meanwhile, the method is a carbon recombination strategy for directly editing a molecular skeleton, can provide a new idea for late-stage design and optimization of a drug molecule, and can accelerate the drug discovery and development process, and has good theoretical value and application prospect.

The application provides a positive electrode sheet, a secondary battery and an electronic device, comprising a positive electrode current collector and a positive electrode material layer located on at least one surface of the positive electrode current collector, the positive electrode material layer comprising a positive electrode active material and a first compound, the first compound comprising at least one of ethylene phosphate, allyl phosphate, vinylidene phosphate, diallyl phosphate, phenylethylene phosphate, diphenyl phosphate or diphenyl ethylene phosphate, and the infrared spectrum of the positive electrode material layer has infrared characteristic peaks at any two of 1150 cm ‑1 ±10 cm ‑1 , 1085 cm ‑1 ±10 cm ‑1 , 1600 cm ‑1 ±10 cm ‑1 , 1640 cm ‑1 ±10 cm ‑1 or 1500 cm ‑1 ±10 cm ‑1 . Through the above setting, the high-temperature cycle performance and thermal safety performance of the secondary battery are improved, and the low-temperature and impedance performance are considered.

The invention provides a battery pole piece, a lithium ion battery and a preparation method of the lithium ion battery. Specifically, a coating is arranged on one side, far away from a current collector, of an active material layer of the battery pole piece; the coating is formed by crosslinking a first monomer, a second monomer, a binder and a photoinitiator; the first monomer is prepared from at least one of diethyl allyl phosphonate, triethyl phosphate, diphenyl phosphate, dimethyl methylphosphonate or melamine cyanurate; and the second monomer is prepared from at least one of ethoxylated trimethylolpropane triacrylate, trimethylolpropane triacrylate, pentaerythritol triacrylate, tripropylene glycol diacrylate or trimethylolpropane trimethacrylate. The single and uniform coating not only helps to alleviate the problems of thermal runaway and cycle attenuation of the high-nickel ternary battery, but also does not need precise equipment in the preparation process, can be compatible with the existing lithium battery production line, and realizes collaborative optimization of thermal safety-cycle performance-mass production cost.

The invention relates to the technical field of structural adhesives, and discloses a thermocuring bio-based composition and an adhesive film prepared from the thermocuring bio-based composition. The heat-curable bio-based composition comprises an acrylic acid prepolymer, flame-retardant cardanol-phenolic resin and a filler; the flame-retardant cardanol-phenolic resin is obtained by partially substituting phenolic hydroxyl groups in the cardanol-phenolic resin with diphenyl chlorophosphate; the cardanol-phenolic resin is generated by blending and reacting cardanol, phenol and formaldehyde. According to the invention, the flame-retardant cardanol-phenolic resin is compounded with other thermosetting compositions to obtain the bio-based flame-retardant thermosetting adhesive film applied to electronic device protection, and meanwhile, the bio-based structure-cardanol in the adhesive film enables the adhesive film to have excellent bending resistance after being cured; the flexible circuit protection device can be used for protecting flexible circuits needing to be bent repeatedly.

The invention provides a polyamide compound as well as a preparation method and application thereof, and relates to the technical field of high polymer materials. The polyamide compound comprises the following components in parts by weight: 60-75 parts of a polyamide matrix which comprises PAMXD6, PA10T, PA12I and PA66; the reinforcing auxiliary material comprises basalt fibers and hollow glass beads subjected to hydrophobic pretreatment, and the ratio of the basalt fibers to the hollow glass beads is (3-5): 1; 1-5 parts of a hydrophobic modification aid; the nucleating agent is formed by compounding sodium diphenyl phosphate and 1, 3: 2, 4-dibenzylidene sorbitol according to the mass ratio of (2 to 4): 1; 0.4 to 0.8 part of an antioxidant; 0.1 to 0.5 part of a lubricant; the polyamide compound provided by the invention has the comprehensive advantages of high strength, light weight and easiness in processing, is far better than a traditional polyamide material, and can meet the requirements of unmanned aerial vehicle paddles and other scenes with strict performance requirements.

The application discloses a method for removing half ester in bisphenol A bis(diphenyl phosphate), relates to the technical field of organic synthesis, and has the following steps: mixing bisphenol A bis(diphenyl phosphate) material containing half ester with a methylating agent in the presence of a Lewis acid catalyst to make P-OH groups in the half ester undergo a methylation reaction, wherein the methylating agent is selected from one or more of dimethyl phosphate, dimethyl carbonate and dimethyl sulfate; and performing vacuum distillation on the reaction material after the reaction is completed to remove unreacted methylating agent and by-products, and further performing solvent dissolution, acid washing, alkali washing, water washing and desolvent treatment. The method has the beneficial effects that the half ester impurities containing acidic P-OH groups are converted into corresponding phosphate esters through the methylation reaction, and the half ester content and acid value in the BDP product are reduced.

The invention discloses a halogen-free flame-retardant ABS (Acrylonitrile Butadiene Styrene) composition as well as a preparation method and application thereof. The halogen-free flame-retardant ABS composition is prepared from the following components in parts by weight: 78 to 97 parts of ABS resin; 5-22 parts of an organic phosphine oxide; wherein the melt flow rate of the ABS resin under the conditions of 220 DEG C and 10kg is greater than or equal to 18g / 10min; the organic phosphine oxide comprises one or more of trimethyl phosphine oxide, triethyl phosphine oxide or methyl diphenyl phosphate. According to the present invention, the organic phosphine oxide is adopted as the flame retardant, such that the free radical chain reaction can be efficiently inhibited, the flame retardant effect can be improved, the melt flow rate of the ABS resin can be adjusted, the dripping time of the combustion can be shortened, the V-2 level can be achieved under the condition that only the organic phosphine oxide is adopted as the flame retardant, and the thermal deformation temperature of the ABS composition cannot be significantly reduced.

This invention relates to a method for determining the content of (4-tert-butylphenyl)diphenyl thiophosphate in hydraulic oil, lubricants, and greases, comprising the following steps: 1) Sample pretreatment: mixing the liquid sample and setting aside; 2) Sample extraction: ultrasonically extracting the pretreated sample using a 1:1 solvent of hexane and dichloromethane; 3) determining the concentration of (4-tert-butylphenyl)diphenyl thiophosphate in the sample extraction solution obtained in step 2) using GC-MS; 4) calculating the content of (4-tert-butylphenyl)diphenyl thiophosphate in the sample based on the concentration of (4-tert-butylphenyl)diphenyl thiophosphate in the sample extraction solution obtained in step 3). This invention is not only rapid and simple to use, but also enables accurate determination of the content of (4-tert-butylphenyl)diphenyl thiophosphate, solving the problem of determining the content of (4-tert-butylphenyl)diphenyl thiophosphate.

The application relates to the technical field of batteries, and particularly discloses a sodium ion electrolyte and a preparation method thereof. The sodium ion electrolyte comprises a sodium salt, a solvent and an additive; the solvent comprises ether solvents and ionic liquids, wherein the ether solvents comprise glycol dimethyl ether and ethylene glycol dimethyl ether, and the ionic liquids comprise ether group-containing piperidine ionic liquids; and the additive comprises at least one of vinyl ethylene sulfite, dimethyl succinate and methylphenyl diphenyl phosphate. The sodium ion electrolyte system has good electrical properties, can help improve the coulomb efficiency of a sodium ion battery, and has the advantages of high safety.

The present application relates to a kind of morpholine ring compound and derivative and preparation method and application.The morpholine ring compound is the compound with the structure shown in formula A or formula B, or their enantiomers.The present application starts from ethynyl carbonate and 4-amino dienone or N-benzyl oxetane-3-amine, develops a continuous asymmetric propargyl amination and desymmetrization Michael addition reaction using cuprous iodide and chiral pyridine oxazoline ligand as catalyst, and desymmetrization ring-opening reaction of butylene oxide with diphenyl phosphate, efficiently, with high enantioselectivity and excellent diastereoselectivity Synthesis of multiple quaternary carbon center and multifunctional morpholine ring derivatives and nitrogen-containing adjacent quaternary carbon and hydroxyl-containing morpholine derivatives;And further develop a derivative with antitumor activity.

This invention relates to the field of polymer material modification technology, and discloses a halogen-free flame-retardant polyolefin cable material and its preparation method. The material comprises linear low-density polyethylene, ethylene-vinyl acetate copolymer, ethylene-methyl acrylate-glycidyl methacrylate terpolymer, active zinc oxide, synthetic hydrotalcite, antioxidant, lubricant, and interface-solventized modified flame-retardant powder, which are reacted and extruded. The modified flame-retardant powder is formed by coating diethylphosphinate aluminum and anhydrous zinc borate with liquid bisphenol A-bis(diphenyl phosphate). This invention utilizes the steric hindrance effect to regulate the reaction kinetics of the epoxy-containing compatibilizer by constructing an interface-solventized layer and combining it with a side-feeding process, preventing premature crosslinking and inducing in-situ chemical bonding. The resulting cable material possesses both excellent flame retardant rating (UL94 V-0) and high elongation at break, effectively solving the technical challenge of balancing mechanical properties and processing stability in high-filler systems.

This invention discloses a flame-retardant lithium-ion battery separator and its preparation method in the field of battery separator technology. The separator is prepared from the following components: flame-retardant filler, deionized water, vinyltrimethoxysilane, anhydrous ethanol, diphenyl phosphate, glycidyl methacrylate, toluene, tetrabutylammonium bromide, methyl methacrylate, azobisisobutyronitrile, N,N-dimethylformamide, polyacrylic acid, and octylphenol polyoxyethylene ether. This invention proposes using halloysite nanotubes combined with phytic acid to prepare the flame-retardant filler, while simultaneously immobilizing diphenyl phosphate in the separator coating, thereby obtaining a high-temperature resistant flame-retardant coating. This also reduces the negative impact of flame retardants on battery performance and improves the thermal stability of the separator.