| 摘要 |
A fibre reinforced plastic panel has first (1) and second (2) fibre reinforced plastic sheets each forming one exterior side of the panel. The first (1) and second (2) fibre reinforced plastic sheets are spaced apart, with an intermediate sheet (4, 5, 6) located therebetween, the intermediate sheet (4, 5, 6) contacting and bonded to each of the first (1) and second (2) sheets, and maintaining the separation (3) therebetween. The intermediate sheet (4, 5, 6) does not contact the first sheet (1) at regions (11, 21, 37) where it contacts the second sheet (2), and does not contact the second sheet (2) at regions (12, 22, 36) where it contacts the first sheet (1). The intermediate sheet (4) may have a plurality of corrugations extending thereacross, with the ridges (11, 12) of the corrugations contacting alternately the first (1) and second (2) sheets. The corrugations may have rectangular shape, and the ridges (11, 12) optionally have straight, curved or wavy paths. Alternatively, the intermediate sheet (5) may have a plurality of discrete contact areas (22) with one of the sheets, with the discrete contacting areas (22) raised from the general plane (21) of the intermediate sheet. |
