| 摘要 |
Multilayer articles having reinforced structural properties are prepared by rotational moulding of external and internal skin layers prepared from polyethylene resin and an intermediate layer prepared from foamed polyethylene. The composition of the external layer is fed as a dry blend into a mould, and the mould is placed in a pre-heated oven and rotated. The composition of the intermediate layer is fed as a dry blend into the mould, and the mould is placed in a pre-heated oven and rotated. The composition of the internal layer is fed as a dry blend into the mould, and the mould is placed in a pre-heated oven and rotated. |
