▎ 摘　　要

NOVELTY - Perforated graphene aerogel hygroscopic fiber comprises perforated graphene aerogel fiber, and hygroscopic agent, where the perforated graphene aerogel fiber is formed by overlapping perforated graphene sheets, the fibrous material is with a three-dimensional porous network structure, and the hygroscopic agent is wrapped on the perforated graphene sheet, and is embedded and filled in three-dimensional porous network structure. USE - The fiber is useful in preparing moisture-absorbing and warmth, air water extraction, smart response, moisture-absorbing heat storage, moisture-absorbing cooling, and microwave-absorbing devices or flexible wearable devices (claimed). ADVANTAGE - The fiber: has excellent flexibility, knitability, moisture absorption, electric heating, light and heat energy storage and other properties. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the perforated graphene aerogel hygroscopic fiber comprising providing perforated graphene hydrogel fiber or perforated graphene aerogel fiber, filling the perforated graphene hydrogel fiber or perforated graphene aerogel fiber with hygroscopic agent by means of solution filling, so that the hygroscopic agent passes into three-dimensional porous network structure of the gel fiber, and drying.