Continuous fiber reinforced thermoplastic rod and pultrusion method for its manufacture

A composite rod for use in various applications, such as electrical cables (e.g., high voltage transmission cables), power umbilicals, tethers, ropes, and a wide variety of other structural members, is provided. The rod includes a core that is formed from a plurality of unidirectionally aligned fibe...

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Hauptverfasser: Eastep, David W, Nelson, Sherri M, Regan, Timothy A, Stiehm, Richard, Tibor, Timothy L, Wesley, Michael L
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creator Eastep, David W
Nelson, Sherri M
Regan, Timothy A
Stiehm, Richard
Tibor, Timothy L
Wesley, Michael L
description A composite rod for use in various applications, such as electrical cables (e.g., high voltage transmission cables), power umbilicals, tethers, ropes, and a wide variety of other structural members, is provided. The rod includes a core that is formed from a plurality of unidirectionally aligned fiber rovings embedded within a thermoplastic polymer matrix. The present inventors have discovered that the degree to which the rovings are impregnated with the thermoplastic polymer matrix can be significantly improved through selective control over the impregnation process, and also through control over the degree of compression imparted to the rovings during formation and shaping of the rod, as well as the calibration of the final rod geometry. Such a well impregnated rod has a very small void fraction, which leads to excellent strength properties. Notably, the desired strength properties may be achieved without the need for different fiber types in the rod.
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subjects AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS
CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS
MAKING GRANULES OR PREFORMS
NATURAL OR ARTIFICIAL THREADS OR FIBRES
PERFORMING OPERATIONS
PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED
RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS
SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR
SHAPING OR JOINING OF PLASTICS
SPINNING
TEXTILES
TRANSPORTING
WORKING OF PLASTICS
WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
title Continuous fiber reinforced thermoplastic rod and pultrusion method for its manufacture
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