Bundles of reinforcing fibers to produce fiber reinforced polymer composites.

摘要

A fiber-containing composition suitable to be formulated with a matrix polymer in a compounding process to form a reinforced polymer composite fibers, said composition comprising a mass of cut fiber bundles, said mass having an average bulk density of at least 0.26 g / cm3 and wherein substantially all of said cut fiber bundles have a length of between 3 and 15 mm and comprise a plurality of synthetic or natural fibers based on cellulose of substantially the same length, oriented substantially parallel to each other and having their substantially coextensive with one another end, and wherein substantially all of the cut fiber bundles comprise a finish composition which coats fibers within the bundles and forms bonds fugitive inter-fiber bonds within each beam cut to provide coherence between the fibers inter-fiber fibers, such fugitive bonds can break is after the composition of said bundles in a compounding process such that said cut fiber bundles can disintegrate into separate individual for dispersion within the matrix polymer during said process fibers.