Organic/inorganic composite blend membrane compositions of polyelectrolye blends with nanoparticles

摘要

The invention relates to composite blend membranes formed from blends of one or more polyelectrolytes, and one or more types of nanoparticles. Preferably the blend also includes one or more fluoropolymers. The addition of the nanoparticles was found to enhance the conductivity and mechanical properties of the membranes.

主权项

1. A composite blend membrane comprising a blend of:
a) fluoropolymer, wherein said fluoropolymer is a polyvinylidene fluoride homopolymer or copolymer containing at least 70 weight % of vinylidene fluoride monomer units; b) one or more polyelectrolytes; and c) one or more types of nanoparticles, wherein said nanoparticles are selected from the groups consisting of metal sulfates, metal phosphates, nanoclays, zirconium hydrogen phosphate, zirconium hydroxide sulfated, zirconium phosphate, zeolites, silica, sulfonated silica, carbon nanotubes, graphenes, fullerenes, nanodiamonds, sulfonated nanotubes, silsesquioxanes, silsesquioxanes functionalized with groups containing sulfonic acid, metal-organic framework (MOF) materials, transition metal sulfides, transition metal selenides, transition metal tellurides, cadmium selenide (CdSe), cadmium telluride (CdTe), lead sulfide (PdS), palladium, gold and platinum, graphene, graphite, and montmorillonite, and wherein said nanoparticles have a diameter of from 0.5 nm to 1000 nm.