Method for making structural parts with reinforcement fiberes embedded in a matrix material using thermoplastic fibers containing polyhydroxyether
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United States of America Patent
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Apr 2, 2013
Grant Date -
Dec 8, 2011
app pub date -
Aug 15, 2011
filing date -
Mar 22, 2005
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Abstract
The invention describes a new synthetic fiber material of polyhydroxyether, as well as a melt-spinning method for its production. The new material can be used, in particular, for stabilization of the reinforcement fibers of high-performance fiber composite materials before they are embedded in the matrix material. During this usage, the polyhydroxyether fiber material dissolves at a temperature above its glass transition temperature entirely in the matrix material, so that the reinforcement fibers can be arranged largely free of kinking. In addition, it forms cross-links with the matrix material to form a homogeneous matrix and thus does not constitute a disruptive third phase in the composite material. The compatibility of the matrix and reinforcement fiber is also improved. It was possible to improve the bending strength of test slabs by 12% as compared to that of reference slabs with polyester filament.
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