Influence of Fiber Properties on Wrinkling Behavior of Fabrics

Abstract

Analyses of mechanical and diffusive properties of fibers are described, indicating strong lateral interactions between the microfibrils. These results show that uniaxially-oriented polymers must be analyzed in terms of a model where the crystallites are imbedded in an “amorphous” matrix. The equations are derived for modulus, strength, and coefficient of diffusion in terms of crystallite dimensions, and the results are compared with the experimental data. These results contradict the predictions of the microfibrils model where the properties are independent of the crystallite dimensions but depend solely on the degree of crystallinity. New correlations were found between the coefficient of friction and tan δ of the fiber. It is proposed that polymer deformation has a strong effect on the frictional behavior of fibers in the fabrics.