A support film for a tape material, includes a film-shaped support formed of polyurethane; and a barrier layer containing an aromatic isocyanate-based polyurethane and a layered inorganic compound and formed on one surface of the support.

A support film for a tape material, includes a film-shaped support formed of polyurethane; and a barrier layer containing an aromatic isocyanate-based polyurethane and a layered inorganic compound and formed on one surface of the support.

The present invention provides a flexible wearable dry electrode and a preparation method thereof. A flexible wearable dry electrode comprises a base fabric, a transfer glue layer and a nano-conductive layer that are successively attached; the formulation of the transfer glue layer is as follows: weighed in weight percentage, 50%-90% of an elastic resin, 5%-15% of a curing agent, and 5%-35% of a filler; the formulation of the nano-conductive layer is as follows: weighed in parts by weight, 0.1-20 parts of a conductive nanomaterial, 0.1-30 parts of a dispersant, and 0.01-5 parts of a binder. The preparation method thereof is as follows: a conductive coating liquid and a transfer glue are prepared respectively, then both are successively transferred to a flexible release film and finally press-fit onto a base fabric, and subsequently, curing is achieved and the release film can then just be torn off.