▎ 摘　　要

NOVELTY - Preparation of highly shrinkable fiber, involves (i) mixing compatibilizer, graphene material, PET masterbatch in a twin screw machine and melt-blending to obtain graphene functional masterbatch, (i) mixing the graphene functional masterbatch with the PET masterbatch and then melt blending by a twin screw machine to obtain fiber, (III) spinning the obtained fibers, cooling, drying, oiling, drawing hot water, drying and shaping, and then winding to obtain high shrinkage fiber. USE - Preparation of highly shrinkable fiber (claimed). ADVANTAGE - The highly shrinkable has excellent compatibility and mechanical properties.