posted on 2023-03-06, 05:29authored byShuaijie Yuan, Jian Wang, Jiayi Mei, Jing Zhao, Gang Huang, Zhengrong Li, Xiaoxia He, Jintu Fan
Moisture and thermal management fabrics that remove perspiration
and regulate skin temperature can improve human comfort. However,
fabrics with radiant cooling and rapid sw eat evaporation effects
that can address both heat and moisture management remain a challenge.
Therefore, a perspiration evaporation fabric based on graphene oxide
(GO), polystyrene (PS), and cotton (referred to as G/P-C) was prepared
using a simple soaking and electrostatic spinning strategy. When there
was no perspiration (indoor scenarios), the fabric exhibited an exceptional
radiative cooling capacity. The heat storage power of the G/P-C fabric
(0.68 W/m2) was lower than that of cotton (4.63 W/m2) due to the integrated GO nanosheets that absorb human infrared
radiation (IR), indicating that less heat was trapped between the
skin and the fabric. Additionally, the temperature of human skin covered
with the G/P-C fabric decreased by approximately 1.6 °C from
that of skin covered with cotton. When there was perspiration (outdoor
scenarios), the surface temperature of the resulting fabric increased
by 3.2 °C and the evaporation rate was nearly twice that of cotton
due to the combination of solar radiation adsorption and directional
water transport. This fabric is expected to provide insight into the
development of sweat management for personal health and comfort.