| 摘要 |
The invention relates to an unmixed plastic sheet (10), which is made of a thermoplastic material and which is composed of a number of body segments (11) that are adjacent to one another in a plane, interconnected and made of a closed-cell foam material. To this end, these body segments (11) are thermoplastically welded to one another at their abutting lateral faces while forming flat weld seams (12, 13). The flat weld seams (12, 13) form a plastic intermediate layer, which has few pores, and which is provided in the form of a web structure that, when viewed from above, is reticular and reinforces the plastic sheet (10). The inventive plastic sheet (10) is preferably used as a core layer in sandwich composites (1). |
