▎ 摘　　要

NOVELTY - Biomimetic neuromuscular fiber comprises a carbon nano-tube fiber core comprising a middle layer, a substrate layer and a sensing layer that sequentially wrap from the inside to the outside. The bionic neuromuscular fibers are twisted into a spiral shape. The middle layer and the substrate layer are made of high molecular material. The thermal expansion coefficient of the middle layer is greater than the thermal expansion coefficient of the substrate layer. The sensing layer comprises a carbon-based conductive material at least comprises MXene. USE - The biomimetic neuromuscular fiber is useful in preparing soft robot (claimed). ADVANTAGE - The biomimetic neuromuscular fiber: has the sensing layer and middle are multifunctional, and the sensing layer acts as both a capacitive electrode and a resistive sensing element, where the middle layer acts both as a thermally driven element and as a dielectric layer thus achieves proximity sensing; and provides three functions of electrothermal drive and motion feedback provides a broader space for the development of flexible robots. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing biomimetic neuromuscular fiber, comprising (i) covering the first polymer material on the carbon nano-tube fiber core to form a middle layer obtain the first precursor fiber; (ii) covering the second polymer material on the first precursor fiber to form a substrate layer, and twisting to the spiral obtain the second precursor fiber; and (iii) constructing a sensing layer comprising a carbon based conductive material on the surface of the second precursor fiber.