7 results about "Polyphenylsulfone" patented technology

The application belongs to the technical field of membrane separation, and particularly relates to a small-aperture high-flux ultrafiltration membrane and a preparation method and application thereof. Polymer material, an additive and an organic solvent are mixed, constant-temperature stirring and standing defoaming are performed to obtain a casting solution, and then a non-solvent phase separation method is used to prepare the ultrafiltration membrane. The polymer material comprises polyethersulfone and sulfonated polyphenylsulfone with a mass ratio of 95:5-80:20, and the additive is polyethylene glycol. The rejection rate of the ultrafiltration membrane to bovine serum albumin (BSA) is above 99%, the rejection rate of direct red 23 and coomassie brilliant blue and other dyes can be above 96%, and the pure water permeability is 310 L·m ‑2 ·h ‑1 ·bar ‑1 , which has a wide application prospect in the fields of antibody protein purification and concentration, dye desalination and nanoscale pollutant treatment in wastewater.

The application belongs to the technical field of membrane separation, and particularly relates to a small-aperture high-flux ultrafiltration membrane and a preparation method and application thereof. Polymer material, an additive and an organic solvent are mixed, constant-temperature stirring and standing defoaming are performed to obtain a casting solution, and then a non-solvent phase separation method is used to prepare the ultrafiltration membrane. The polymer material comprises polyethersulfone and sulfonated polyphenylsulfone with a mass ratio of 95:5-80:20, and the additive is polyethylene glycol. The rejection rate of the ultrafiltration membrane to bovine serum albumin (BSA) is above 99%, the rejection rate of direct red 23 and coomassie brilliant blue and other dyes can be above 96%, and the pure water permeability is 310 L·m ‑2 ·h ‑1 ·bar ‑1 , which has a wide application prospect in the fields of antibody protein purification and concentration, dye desalination and nanoscale pollutant treatment in wastewater.

This invention discloses an aminated graphene oxide-based bipolar membrane and its preparation method, belonging to the field of bipolar membrane technology. The bipolar membrane is composed of a sulfonated polyphenylene sulfone cation layer, an aminated graphene oxide interlayer, and a quaternized polyphenylene ether anion layer stacked sequentially. This invention utilizes the aminated graphene oxide as the interlayer, taking advantage of its two-dimensional sheet-like morphology, abundant catalytic groups, and cross-linking effect to achieve a bipolar membrane with low water dissociation voltage, good interlayer compatibility, and structural stability. When applied to electrodialysis, it improves alkali concentration and current efficiency compared to commercially available membranes, while reducing energy consumption, showing promising application prospects in acid and alkali preparation, resource recovery, and other fields.

The application discloses a kind of high-temperature-resistant polyphenyl sulfone composite and preparation method thereof, belong to polyphenyl sulfone composite technical field, first by ultrasonic dispersion and complexation reaction preparation tannic acid-iron complex modified molybdenum disulfide, iron-containing carbon-coated molybdenum disulfide is obtained by high-temperature carbonization, so it has good stability and lubricity, then using 6-hydroxy-2-naphthoic acid, 4,4'-diphenyl ether dicarboxylic acid and 4,4'-dihydroxy diphenyl sulfone and other monomers in acetic anhydride system are prepared by melt polycondensation and solid phase condensation reaction, modified aromatic liquid crystal polyester is prepared, and fiber network is formed, finally, iron-containing carbon-coated molybdenum disulfide and modified aromatic liquid crystal polyester and polyphenyl sulfone resin are melt blended in double-screw extruder, and high-temperature-resistant polyphenyl sulfone composite is obtained, effectively solve the problem that the lubricating property of polyphenyl sulfone material is reduced under high temperature and high humidity environment, and the mechanical toughness is attenuated, suitable for high-end medical instrument application needing long-term tolerance multiple sterilization cycle.

This invention discloses a polyphenylene sulfone resin and its preparation method, relating to the field of high-temperature resistant polymer materials. The invention employs a method of adding solvent first and then monomer, while simultaneously adding an external circulation pipeline to the equipment to reduce monomer by-decomposition, further increasing the mixing of raw materials and intermediate products during the reaction process, and improving the reaction rate. In the GPC chromatogram obtained by gel permeation chromatography, the sum of the percentages of lg(Mw1)>5.3 and lg(Mw2)<3.6 is less than 1.2% of the total, indicating that the obtained polyphenylene sulfone exhibits excellent dimensional stability.

The application discloses a polyetherimide composite material and a preparation method and application thereof, and belongs to the field of high polymer material special engineering plastics. The polyetherimide composite material is prepared by mixing polyetherimide, polyphenylsulfone and polyester, and on the basis of improving the flowability of the polyetherimide, the basic performance of the polyetherimide can also be maintained, the light transmittance of the polyetherimide is relatively improved, the heat distortion temperature is relatively improved, meanwhile, the polyetherimide composite material has the flame retardance, and can adapt to the application of the polyetherimide material in various fields.

An object of the present invention is to provide a transfer film capable of forming a film which contributes to suppressing migration between wirings. The transfer film of the present invention includes, in the following order, a temporary support, a water-soluble resin layer, and a photosensitive composition layer, in which the photosensitive composition layer contains at least one specific compound selected from the group consisting of a polyimide precursor, a polyimide, a polybenzoxazole precursor, a polybenzoxazole, a phenol resin, an epoxy resin, a polyphenylene ether resin, a silicone resin, a benzocyclobutene resin, a fluorene resin, a liquid crystal polymer, a polyethersulfone, a polyarylate, a polyetherimide, a polybenzimidazole, a polyphenylsulfone, a polycarbonate, an acrylonitrile-butadiene-styrene copolymer resin, and a polyphenylene sulfide.