The present invention relates to composites comprising rigid-rod polymers and graphene nanoparticles, processes for the preparation thereof, nanocomposite films and fibers comprising such composites and articles containing such nanocomposite films and fibers.

A preparation method of composite materials having ion exchange function is provided. The method comprises the following steps: adding a trace of strong protonic acid and/or Lewis acid as a catalyst into the material during compounding, to allow nitrile groups of at least one nitrile group-containing ion exchange resin and nitrile groups of functional monomers grafted on the porous fluoropolymer membrane to form a triazine ring crosslinked structure.

A black-color polymer composite film comprising a phthalocyanine compound dispersed in a polymer selected from the group consisting of polyimide, polyamide, polyoxadiazole, polybenzoxazole, polybenzobisoxazole, polythiazole, polybenzothiazole, polybenzobisthiazole, poly(p-phenylene vinylene), polybenzimidazole, polybenzobisimidazole, and combinations thereof, wherein the phthalocyanine compound occupies a weight fraction of 0.1% to 50% based on the total polymer composite weight. Preferably, the phthalocyanine compound is selected from copper phthalocyanine, zinc phthalocyanine, tin phthalocyanine, iron phthalocyanine, lead phthalocyanine, nickel phthalocyanine, vanadyl phthalocyanine, fluorochromium phthalocyanine, magnesium phthalocyanine, manganous phthalocyanine, dilithium phthalocyanine, aluminum phthalocyanine chloride, cadmium phthalocyanine, chlorogallium phthalocyanine, cobalt phthalocyanine, silver phthalocyanine, a metal-free phthalocyanine, or a combination thereof.

Embodiments of the present invention provide for anion exchange membranes and processes for their manufacture. The anion exchange membranes described herein are made the polymerization product of at least one functional monomer comprising a tertiary amine which is reacted with a quaternizing agent in the polymerization process.

Provided is a process for producing a polymer composite film, comprising the steps of: (a) mixing a phthalocyanine compound with a polymer or its precursor and a liquid to form a slurry and forming the slurry into a wet film on a solid substrate, wherein the polymer is preferably selected from the group consisting of polyimide, polyamide, polyoxadiazole, polybenzoxazole, polybenzobisoxazole, polythiazole, polybenzothiazole, polybenzobisthiazole, poly(p-phenylene vinylene), polybenzimidazole, polybenzobisimidazole, and combinations thereof; and (b) removing the liquid from the wet film and, in some embodiments, converting the precursor to the polymer to form the polymer composite film comprising from 0.1% to 50% by weight of the phthalocyanine compound dispersed in the polymer.

Provided is a process for producing a polymer composite film, comprising the steps of: (a) mixing a phthalocyanine compound with a polymer or its precursor and a liquid to form a slurry and forming the slurry into a wet film on a solid substrate, wherein the polymer is preferably selected from the group consisting of polyimide, polyamide, polyoxadiazole, polybenzoxazole, polybenzobisoxazole, polythiazole, polybenzothiazole, polybenzobisthiazole, poly(p-phenylene vinylene), polybenzimidazole, polybenzobisimidazole, and combinations thereof; and (b) removing the liquid from the wet film and, in some embodiments, converting the precursor to the polymer to form the polymer composite film comprising from 0.1% to 50% by weight of the phthalocyanine compound dispersed in the polymer.

A flame-resistant composite separator for use in a lithium battery, wherein the composite separator comprises a porous layer of a first polymer, having pores and a thickness from 50 nm to 200 μm, and a second polymer permeating into or residing in the pores, wherein: (a) the first polymer comprises a flame-resistant polymer or thermally stable polymer; (b) the second polymer comprises a polymer that is polymerized and/or cured in situ in the pores or is a polymer solidified from a polymer solution inside the pores of the first polymer layer; and (c) the first polymer or the second polymer has a lithium-ion conductivity from 10.sup.−8 S/cm to 2×10.sup.−2 S/cm at room temperature.

A method of bonding includes providing a thermoplastic substrate having a surface with a surface energy value of less than a 48 miliJoules per meter squared. The surface is exposed to particulate formed in a combustion flame from a precursor. The particulate forms an adherent layer of metal oxide on the surface. An adhesive is applied to the adherent layer. A second substance is placed in in simultaneous contact with the adhesive to bond the thermoplastic. A laminate is provided that includes a thermoplastic substrate having a surface. An adherent layer of metal oxide is on a surface of the thermoplastic substrate. An adhesive is attached to the adherent layer. A second substance is in simultaneous contact with the adhesive.

Provided is a process for producing a polymer composite film, comprising the steps of: (a) mixing a phthalocyanine compound with a polymer or its precursor and a liquid to form a slurry and forming the slurry into a wet film on a solid substrate, wherein the polymer is preferably selected from the group consisting of polyimide, polyamide, polyoxadiazole, polybenzoxazole, polybenzobisoxazole, polythiazole, polybenzothiazole, polybenzobisthiazole, poly(p-phenylene vinylene), polybenzimidazole, polybenzobisimidazole, and combinations thereof; and (b) removing the liquid from the wet film and, in some embodiments, converting the precursor to the polymer to form the polymer composite film comprising from 0.1% to 50% by weight of the phthalocyanine compound dispersed in the polymer.

The present invention relates to a self-humidifying ion-exchange composite membrane including an aromatic hydrocarbon polymer ion-exchange membrane formed on the surface of a porous polymer support and a thin hydrophobic coating layer having a nanocracked morphology pattern on the surface of the ion-exchange membrane. The self-humidifying ion-exchange composite membrane of the present invention has good thermal/chemical stability, high mechanical strength, high ion-exchange capacity, and good long-term operational stability. Particularly, the self-humidifying ion-exchange composite membrane of the present invention is able to self-hydrate even under high-temperature and low-humidity conditions. Due to these advantages, it is expected that the self-humidifying ion-exchange composite membrane of the present invention will be commercialized as an electrolyte membrane for a fuel cell or a membrane for water treatment.