Abstract
Commercial nylon6 fibers for apparel use (N6) and for tire code (T-N6) were dipped in a 30wt% chloroform solution of t-butyl perbenzoate (TBP) at 60°C under nitrogen for a predetermined period and then crosslinked at 150°C for 2h. TBP content in dipped fibers measured by DTA, and gel content, density and Young's modulus of crosslinked fibers increased, while their degree of crystallinity and thermal shrinkage decreased with the increase in time of dipping. The extents of these increases and decreases were more remarkable for T-N6 than N6, suggesting that the more effective crosslinking occurred for T-N6.
