| 摘要 |
Rigid yet lightweight composite sheets contain a core layer formed by thermal consolidation of a needled non-woven mat of glass fibers and polypropylene fibers, optionally with a melt-bonded polypropylene film on at least one side thereof, sandwiched between layers of GMT. The core contains from 20 to 80 volume percent air voids, whereas the GMT outer layers have a very low or zero void content. The composite sheets may be used for structural panels, for fabricating furniture, and for other uses.
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