Abstract
A method by which the single fiber tenacity at "zero" nominal gauge length may be calculated is demonstrated. It is postulated that this tenacity is the intrinsic tenacity of the particular fiber. Sippel's equation is used to calculate the intrinsic tenacity, but the end effect correction to the nominal gauge length is determined independently of this equation. This correction is determined from the extension data taken at various nominal gauge lengths under constant rate of movement of the crosshead of the tensile tester. On this basis, the intrinsic tenacities of ramie, flax, and cotton, in the range of 1800 to 5000 DP are shown to be related to the 50% intensity x-ray angle and are in dependent of degree of polymerization of the undegraded fiber.
Get full access to this article
View all access options for this article.