Surface modification of ES fibres: the controllability of fold structure and its effect on hydrophilicity

Abstract

Ethylene-Propylene Side by Side (ES ) fibre remains an important challenge in hydrophilicity. In this study, we obtained folded nonwoven fabrics (FNF) by the through air-bonding process. The fiber with the fold structure was prepared by regulating the treatment temperature, treatment time, and cooling rate. The results showed that the melting point of the shell layer should be controlled at 135°C. The fold structure was most obvious at 135°C, 2.5 min, and rapid cooling. Compared with the common sample, liquid absorption capacity, thickness, and the diffusion area of the FNF increased by 64%, 0.3 mm, and 41%, respectively, and the rewet decreased by 35%. The contact angle of FNF was 140°, which was 30°larger than that of common nonwovens. Except for the first time, the penetration time for the two other times was better than that of ordinary materials.

Preparation, structure, and properties of biodegradable core‐sheath composite fibers derived from poly (butylene adipate‐co‐terephthalate) and polylactic acid

“…Ethylene‐propylene side‐by‐side (ES) fiber is a core‐sheath composite fiber, with a low melting point of PE serving as the sheath layer and a high melting point of PP or PET acting as the core layer 1–3 . During the heating and molding process using hot air, the sheath layer melts while the core layer remains solid, acting as a structural framework.…”

Surface modification of synthetic polymer fibers

“…Physical modification methods like incorporating a folded surface structure have been demonstrated to enhance hydrophilicity without sacrificing comfort, ecofriendliness, durability, or cost-effectiveness. 14 In recent years, there has been a growing interest in drug-eluting synthetic polymer fibers and nanofibers. Bioactive agents are either encapsulated within the core of the fibers or attached to their surface, to be strategically released.…”