Abstract
Tests were made of Kevlar® fiber blends of 5, 10, 15, and 20% with cotton. The processing efficiency of cotton/Kevlar blends compared favorably with that of blends of cotton with 15, 25, 35, and 50% of polyester or 15% nylon. Lower twists were required for yarns spun from the cotton/Kevlar blends for optimum strength, and stronger fabrics were produced than with comparable cotton blends with polyester or nylon, Blending Kevlar with cotton did not significantly increase either elongation of DP fabric or abrasion resistance, but it substantially increased tensile and tearing strength. Cotton/Kevlar fabrics treated with THPOH-NH 3 are more flame-resistant and are stronger than similarly treated all-cotton fabrics.
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