8 results about "Antimony pentoxide" patented technology

The application belongs to the technical field of target materials, and particularly relates to a tin oxide-based composite target material and a preparation method thereof. The tin oxide-based composite target material provided by the application comprises tin oxide, doped oxide and sintering aid, the doped oxide is antimony pentoxide, vanadium pentoxide, nickel oxide and tungsten trioxide, and the sintering aid is magnesium oxide and yttrium oxide. The application uses antimony pentoxide, vanadium pentoxide, nickel oxide and tungsten trioxide as the doped oxide, effectively improves the electrical and optical properties of the target material; uses magnesium oxide and yttrium oxide as the sintering aid, refines the grains, and improves the density and mechanical properties of the target material; uses the sol-gel method to realize atomic-level mixing of part of elements, then uses the high-energy ball milling method to realize atomic-level doping, reduces the distribution deviation of the elements in the matrix, uses the discharge plasma furnace to realize sintering, and reduces the volatilization loss of the elements and the pore defects in the target material.

The present invention provides a flame-retardant resin composition which is excellent in flame retardancy and heat resistance and is less likely to cause blooming. The present invention relates to a flame-retardant polypropylene resin composition characterized by comprising: (A) a polypropylene resin: 100 parts by weight; (B) a mixture of specific bisphenol S derivatives: 2 to 50 parts by weight; (C) at least one of (c1) tetrabromobisphenol A bis(2,3-dibromopropyl) ether and (c2) tris(2,3-dibromopropyl) isocyanurate: 0.2 to 20 parts by weight; and (D) at least one of antimony trioxide, antimony pentoxide, zinc molybdate, boron trioxide and zinc borate: 1 to 20 parts by weight.

This invention provides a corrosion-resistant PMMA / ABS composite material and its preparation method, relating to the field of polymer materials technology. The composite material provided by this invention comprises, by weight, 50-80 parts PMMA matrix, 40-80 parts ABS matrix, 5-10 parts brominated flame retardant, 5-10 parts toughening agent, 2-5 parts compatibilizer, 0.1-1 part lubricant, 0.1-1 part antioxidant, 0.1-1 part weathering agent, and 3-5 parts corrosion-resistant filler; wherein the corrosion-resistant filler includes nano-modified silica and nano-modified antimony pentoxide. The composite material provided by this invention exhibits excellent acid and alkali corrosion resistance and good mechanical properties, while the flame-retardant performance is improved by combining nano-modified antimony pentoxide with the brominated flame retardant.

The invention provides a high-gloss ABS (Acrylonitrile Butadiene Styrene) composite material and a preparation method thereof, and relates to the technical field of ABS materials. The composite material provided by the invention is prepared from the following components in parts by mass: 80 to 90 parts of ABS (Acrylonitrile Butadiene Styrene) resin, 10 to 20 parts of PBT (Polybutylene Terephthalate) resin, 5 to 15 parts of brominated flame retardant, 3 to 5 parts of compatilizer, 1 to 3 parts of modified antimony pentoxide flame-retardant aid, 1 to 2 parts of stabilizer and 0.5 to 1 part of lubricant, wherein the modified antimony pentoxide flame-retardant additive comprises antimony pentoxide particles and silver nanoparticles grown on the surfaces of the antimony pentoxide particles in situ. According to the invention, the surface of antimony pentoxide is modified with the silver nano layer, so that the flame retardant property and surface glossiness of the composite material can be synergistically improved.

The invention belongs to the field of polymer compositions, and particularly relates to a flame-retardant polyester composite material and a preparation method and application thereof.The flame-retardant polyester composite material is prepared from 35-65 parts of polyester resin, 20-50 parts of reinforcing filler, 10-14 parts of brominated flame retardant, 0.5-1 part of antimony compound, 3-5 parts of hydrotalcite and 0-1 part of processing agent, the brominated flame retardant is at least one of decabromodiphenyl ethane, brominated epoxy resin, brominated polystyrene, tri (tribromophenoxy) triazine, brominated polycarbonate and poly (pentabromobenzyl acrylate), and the antimony compound is at least one of antimony trioxide, antimony pentoxide and sodium antimonate. The proportion of antimony in a bromine-antimony flame-retardant system is greatly reduced, the glowing filament ignition temperature of the flame-retardant polyester composite material is increased, the flame-retardant grade of the material is not reduced, meanwhile, good mechanical properties are kept, and the formula cost is reduced.

The invention relates to the field of fluorescent materials in biomedicine and the like, and particularly discloses a rare earth doped strontium lutetium antimonate up-conversion luminescent material and a preparation method thereof, the material is Sr2Lu1-x-ySbO6: xEr < 3 + > and yYb < 3 + >, x is greater than or equal to 0.01 and less than or equal to 0.04, and y is greater than or equal to 0.05 and less than or equal to 0.35; the preparation method comprises the following steps: weighing strontium carbonate, lutetium oxide, erbium oxide, ytterbium oxide and antimony pentoxide according to a certain ratio as raw materials, adding a proper amount of absolute ethyl alcohol, fully stirring, drying, pressing into sheets, and sintering in a muffle furnace at 1350 DEG C for a period of time. The rare earth doped lutetium strontium antimonate up-conversion luminescent material has the beneficial effects that stronger green light is emitted, when erbium ions and ytterbium ions are at the optimal concentration, the novel luminescent material Sr2Lu0. 73SbO6: 0.02 Er < 3 + > and 0.25 Yb < 3 + > excites stronger green light at 526 nm, has a key effect in optical temperature sensing, and has a huge development prospect as a rare earth doped lutetium strontium antimonate up-conversion luminescent material.

A method for producing a catalytically active multi-element oxide containing the elements molybdenum, tungsten, vanadium, copper and antimony, wherein from at least one source each of the elements tungsten, molybdenum, vanadium, copper and antimony of the multi-element oxide an aqueous solution or an aqueous suspension is generated, a powder P is generated by drying the aqueous solution or the aqueous suspension obtained, optionally a geometric precursor shaped body is produced using the powder P obtained, and the powder P or the geometric precursor shaped body is subjected to a heat treatment to form the catalytically active multi-element oxide, characterized in that antimony pentoxide (V) Sb2O5 is used as a source of the element antimony.

The invention discloses a continuous production method and equipment for preparing antimony pentoxide, and relates to the field of antimony pentoxide colloid production.The equipment comprises a mounting table, and a plurality of reaction bent pipes are fixedly connected to the mounting table. Two raw materials are accurately introduced into the reaction bent pipe and the mixing and heating mechanism in proportion, and the first rotation driving piece drives the transmission pipe and the screw rod to rotate, so that smooth flowing and full stirring and mixing of the raw materials in the reaction bent pipe are realized, and the reaction is promoted. Meanwhile, the heating temperature of the heat supply mechanism is gradually increased from left to right, and the raw materials are fully and uniformly heated, so that byproducts caused by local overheating are avoided, and the reaction purity is ensured. In addition, a second rotation driving piece in the discharging pipe drives the screw rod to convey the mixed raw materials again, continuous and sufficient reaction is achieved, the reaction effect and efficiency are greatly improved, and the product quality is improved.