Method for the manufacture of a plastic component, plastic component, and shoe

A method for the manufacture of a plastic component comprising:

• loading a portion of a mold having a first partial region and a second partial region with a first material which comprises particles of an expanded material, wherein the particles comprise one or more of the following materials:
• expanded thermoplastic polyurethane (“eTPU”), expanded polyamide (“ePA”), expanded polyetherblockamide, (“ePEBA”), polylactide (“PLA”), polyether-block-amide (“PEBA”), polyethylene terephthalate (“PET”), polybutylene terephthalate (“PBT”), and thermoplastic polyester ether elastomer (“TPEE”);
• and
• fusing surfaces of the particles by supplying energy to the first partial region of the mold at a first frequency and to the second partial region of the mold at a second frequency, wherein the first frequency and the second frequency are different from each other, and
• wherein the energy is supplied to the first partial region of the mold and the second partial region of the mold in the form of at least one electromagnetic field in the form of at least one of radiation in the microwave range of 300 MHz-300 GHz or radiation in the radio frequency range of 30 kHz-300 MHz;
• and
• wherein the particles absorb the energy in absence of an additional heat transfer medium being added to the particles or to any portion of the mold.