Composite material of aligned discontinuous fibers

Details Composite material of aligned discontinuous fibers Composite material of aligned discontinuous fibers

1997-03-27

2000-02-15

Yao, Sam Chaun

Fabric (woven, knitted, or nonwoven textile or cloth, etc.)

Coated or impregnated woven, knit, or nonwoven fabric which...

Coating or impregnation intended to function as an adhesive...

442180, 442367, 442368, 442374, 264122, 264437, 156296, B29C 4320, B29B 1116

Patent

active

060252855

ABSTRACT:
A method and apparatus for aligning discontinuous fibers (F 101, 212) is described. A feeder apparatus (20, 120, 220, 220A) is used to align the fibers in a horizontal plane for feeding to the aligning apparatus (40, 140, 240, 240A) providing an electrical (E) field to orient the fibers in one preselected direction. A support or conveyor (70, 170, 270) receives the aligned fibers. The method and apparatus provides composite products having improved physical properties because of the alignment. The fibers can be of different lengths and a mixture of different types to make composites with controlled microstructure and properties. The composite materials can be in the form of non-woven, discontinuous fiber reinforced thermoplastic stampable sheets with controlled fiber orientation distribution. The composites are useful for a variety of goods.

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