Aspects of the disclosure relate to manufacturing a balloon envelope for use in a stratospheric balloon system. For instance, a stream of polyethylene mixture us extruded through an extruder in order to orient molecules of polymer chains of polyethylene and to provide an oriented film. The oriented film is passed through an electron beam and thereby crosslinking the polymer chains to provide a cross-linked film. The cross-linked film is heat sealed to form the balloon envelope


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    Title :

    MANUFACTURING OF POLYETHYLENE THIN FILMS FOR HIGH-ALTITUDE BALLOONS


    Contributors:
    ROACH KEVIN (author) / GAGNE JACQUES (author)

    Publication date :

    2019-03-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B29C Formen oder Verbinden von Kunststoffen , SHAPING OR JOINING OF PLASTICS / B64B LIGHTER-THAN-AIR AIRCRAFT , Luftfahrzeuge leichter als Luft



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