| 摘要 |
The laminate composite material comprises (in order): a first skin layer 50; and a first core layer 46; and preferably a second core layer 44; a third core layer 48; and a second skin layer 52. The skin layers 50, 52 comprise a network of inorganic fibres, preferably woven basalt fibres. The first and third core layers 46, 48 comprise natural fibres (for example, carded hemp or flax fibres) at least partially impregnated with a resin based binder (for example, furan resin comprising a polyfurfuryl alcohol and para-toluene sulphonic acid catalyst). The layers are bonded together via the resin based binder. If present, the second core layer 44 (for example, aramid honeycomb) has a lower density than the first core layer. Heat and pressure are used to combine the layers, wherein the first and third core layers 46, 48 are impregnated beforehand. The composite can be used in an airline galley cart. |
