Composite powder, method for manufacturing composite powder, gas diffusion layer, membrane electrode assembly, and fuel cell
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsTakeshi KOIWASAKI, Ryutaro KUNIOKA, Hiroki MARUYAMA
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Abstract
A method for manufacturing a composite powder, the method includes: stirring and mixing a polymer resin and at least one or more of fibers and particles with a dispersion solvent to obtain a mixed solution of the polymer resin and at least one or more of the fibers and the particles; spraying the mixed solution in a form of droplets into a chamber whose inside is cooled to a temperature lower than a melting point of the dispersion solvent to obtain a frozen composite powder in which the droplets are frozen; and sublimating the dispersion solvent contained in the frozen composite powder to obtain a dried composite powder.
Claims20
A method for manufacturing a composite powder, the method comprising:
- stirring and mixing a polymer resin and at least one or more of fibers and particles with a dispersion solvent to obtain a mixed solution of the polymer resin and at least one or more of the fibers and the particles;
- spraying the mixed solution in a form of droplets into a chamber whose inside is cooled to a temperature lower than a melting point of the dispersion solvent to obtain a frozen composite powder in which the droplets are frozen;
- and
- sublimating the dispersion solvent contained in the frozen composite powder to obtain a dried composite powder.
A method for manufacturing a composite powder, the method comprising:
- stirring and mixing a polymer resin and at least one or more of fibers and particles with a dispersion solvent to obtain a kneaded product of the polymer resin and at least one or more of fibers and particles;
- freezing the kneaded product to obtain a frozen kneaded product;
- pulverizing the frozen kneaded product to obtain a frozen composite powder;
- and
- removing the dispersion solvent from the frozen composite powder to obtain a composite powder.
A method for manufacturing a composite powder, the method comprising:
- stirring and mixing a polymer resin and at least one or more of fibers and particles with a dispersion solvent to obtain a kneaded product of the polymer resin and at least one or more of fibers and particles;
- freezing the kneaded product to obtain a frozen kneaded product;
- mixing the frozen kneaded product and the polymer resin to obtain a frozen mixture;
- pulverizing the frozen mixture to obtain a frozen composite powder;
- and
- removing the dispersion solvent from the frozen composite powder to obtain a composite powder.
Dependencies are inferred from the claim text.