A porous electrolytic composite membrane for electrochemical energy systems, such as alkaline fuel cells, metal-air batteries and alkaline electrolyzers, comprises a porous polymeric material and nanomaterials. The polymeric material is preferably polybenzimidazole (PBI). The nanomaterials are preferably functionalized or non-functionalized. The nanomaterials are preferably titania nanotubes and/or graphene oxide nanosheets. The membrane further comprises an electrolyte solution, such as KOH. A method of preparing the membrane is also provided.

A novel Aromatic Thermosetting Copolyester (ATSP) fully dense sheets can be processed by recycling the foam structure with unique combination of properties including mechanical strength and high temperature performance (compared to PEEK) to help improve part functionality, gain long-term reliability and cost savings. ATSP machinable plates can be used in valves, fittings, bearing, bushing, seals, aerospace parts and pump components.

The present invention relates to a composition containing graphene and grafene nanoplatelets durably dispersed in a solvent. Said composition is characterized in that it contains at least 1% by weight, with respect to the total weight of the solvent, of a vinyl aromatic polymer and comprises a mass concentration of graphene and graphene nanoplatelets (GRS) ranging from 0.001% to 10% by weight with respect to the total weight of the solvent. The vinyl aromatic polymer present in the composition is obtained by partial or total polymerization of the relative vinyl aromatic monomer alone or mixed with up to 50% by weight of further copolymerizable monomers. The composition must satisfy the condition that the sum of the possible content of non-reacted monomers and the content of vinyl aromatic polymer formed is equal to at least 10% by weight with respect to the total weight of the solvent.

A thermoplastic polyurethane foam material, a midsole of athletic shoe and a manufacturing method of a foam material are provided. The thermoplastic polyurethane foam material includes a diphenylmethane diisocyanate, a polytetramethylene ether glycol, a 1,4-butanediol, a nucleating agent and a thinning agent. The thinning agent has a structure represented by formula (I), of which each symbol is defined in the specification.

The disclosure discloses a thermal expansion compound for handles, a preparation method, and applications thereof. The thermal expansion compound for handles is prepared by 20-80 wt of thermosetting resin, 5-50 wt of foaming agent, 5-50 wt of stuffing, and 0-60 wt of diluent. The thermal expansion compound for handles applies to the preparation of various sports instruments such as tennis rackets, badminton rackets, squash rackets, PK rackets, beach rackets, flexible rackets, ball bats and clubs. Handles prepared from the thermal expansion compound have an elegant appearance and a good hand feel, avoid secondary expansion during 100-160 C. post-heating treatment, and have a hardness of SHORE D 60-95.

The present invention relates to a method of forming a foam material, the method comprising the steps of: a) providing an aqueous dispersion comprising polymer particles and a functional filler dispersed in the aqueous phase, and b) lyophilising the aqueous dispersion, to thereby form the foam material. The invention also relates to a foam material produced by the method, and uses of the foam material, for example in anti-static casings, electrode materials, support elements, insulators, catalysis, as membranes for water filtration, implantable materials for biomedical engineering and electromagnetic interference shielding.

A styrene resin extruded foam includes a styrene resin, a flame retarder, a hydrofluoroolefin, an alcohol, and at least one selected from the group consisting of a saturated hydrocarbon having 3 to 5 carbon atoms, dimethyl ether, and alkyl chloride. An amount of the flame retarder is 0.5 to 8.0 parts by weight relative to 100 parts by weight of the styrene resin. The styrene resin extruded foam has an apparent density of 20 to 45 kg/m.sup.3 and a closed cell ratio of not less than 90%. An amount of the hydrofluoroolefin added is 65 to 90 mol % relative to 100 mol % in total of the hydrofluoroolefin and the alcohol which are added. An amount of the alcohol added is 10 to 35 mol % relative to 100 mol % in total of the hydrofluoroolefin and the alcohol which are added.

A polyvinylidene difluoride membrane is provided. The polyvinylidene difluoride membrane including polyvinylidene difluoride having a melt viscosity of 35 to 60 (k poise), and the surface of the polyvinylidene difluoride membrane has a pore size of 0.1 ?m to 5 ?m. A method of manufacturing a porous polyvinylidene difluoride membrane and a method of purifying brine are also provided. The method of purifying brine includes the above-mentioned polyvinylidene difluoride membrane.

A method of forming aerogels includes mixing a plurality of polymers or aromatic molecules, a solvent, and a plurality of carbon nanotubes (CNTs) or graphene including structures to form a mixture, where the polymers or aromatic molecules have at least one crosslinkable structure. A solid gel is formed including a plurality of supramolecular structures from the mixture. The plurality of supramolecular structures include a plurality of the polymers or aromatic molecules secured by - bonds to the outer surface of the CNTs or graphene including structures. The solid gel includes a portion of the solvent trapped therein. The plurality of supramolecular structures are crosslinked and then dried to remove the solvent trapped therein to form the aerogel.

The present disclosure relates to a three-dimensionally (3D) printed tissue engineering scaffold for tissue regeneration and a method for manufacturing the 3D printed tissue engineering scaffold. The 3D printed tissue engineering scaffold may be fabricated at least in part from a composite material having an insoluble component and soluble component. The three-dimensional tissue scaffolds of the disclosure may be fabricated via a rapid prototyping machine. In some instances, the three-dimensional shape of the fabricated tissue engineering scaffold may correspond to a three-dimensional shape of a tissue defect of a patient.