▎ 摘　　要

NOVELTY - Polyamideimide (PAI) crimped nanofiber with electret effect.The main component of the fiber material is PAI, and its mass ratio is greater than or equal to 95%, has nanometer-scale fiber diameter, exhibits a crimped structure, and the fiber aggregate presents a fluffy state with high porosity. The material has obvious electret effect. USE - The nanofiber is useful in fields of e.g air filtration, electronic energy, sound absorption and heat preservation. ADVANTAGE - The method is simple and easy to operate. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the polyamideimide crimped nanofiber.