▎ 摘　　要

NOVELTY - Surface-metalized fiber, yarn or fabric comprises (a) a fiber, fiber yarn or fiber fabric having a surface, (b) a graphene layer having a thickness of 0.34 nm to 20 mu m and comprising multiple graphene sheets and an optional conducive filler coated on or bonded to the surface, with or without using an adhesive resin, to form a graphene-coated fiber, fiber yarn or fiber fabric, and (c) a metal layer comprising a plated metal deposited on the graphene-coated fiber, fiber yarn or fiber fabric, where the multiple graphene sheets contain single-layer or few-layer graphene sheets comprising a pristine graphene material having essentially 0% of non-carbon elements, or a non-pristine graphene material having 0.001-25 wt.% of non-carbon elements, the non-pristine graphene is graphene oxide, reduced graphene oxide, graphene fluoride, graphene chloride, graphene bromide, graphene iodide, hydrogenated graphene, nitrogenated graphene, doped graphene and/or chemically functionalized graphene. USE - The surface-metalized fiber, yarn or fabric is useful in a product, where the product is a vehicle component, an electrical appliance, an electronic device, a food packaging article, a protective clothing, an antistatic fabric, a blanket, an anti-reflection fabric, an EMI-shielding fabric or a toy, and the electric appliance or electronic device contains a Wi-Fi device, a cell phone, a coffee machine, a LED lamp housing, a wearable device, an electronic watch, a laptop computer or a tablet computer (all claimed). ADVANTAGE - The surface-metalized fiber, yarn or fabric: exhibits a high scratch resistance, strength, hardness, electrical conductivity, thermal conductivity, light reflectivity and gloss; has strong adhesion between the deposited metal layers and the lightly etched fiber/yam/fabric surfaces can be achieved via functionalized graphene sheet mediation, even without using chromic acid or chromosulfuric acid, and thus these well-bonded metal layers show a high temperature cycling resistance and survive all the customary temperature cycling shocks; utilizes the graphene sheets that exhibit a negative Zeta potential value in an intended liquid medium are particularly effective in promoting metallization of a fiber, yarn or fabric; is obtained by a process which can be conducted under very mild conditions requiring only a short period of time and can be controlled in a functionally secure and simple manner which ultimately affects the quality of the metal layers, and thus provides the fiber, yam, or fabric materials, including not just polymer, but also glass, ceramic, and carbon fibers/yarns/fabrics can be effectively metallized, is energy efficient, since etching of the plastic surface at high temperatures is not necessary, and since only mild etching conditions are required where necessary in rare cases (e.g. highly smooth ultrahigh molecular weight PE fiber surfaces), a broader array of benign etching solutions can be used, obviating the need to use environmentally restricted chemicals, and can involve only two steps including contacting fiber/yam/fabric surface with a graphene dispersion (e.g. a dipping step) and contacting the graphene-bonded surface with a chemical plating or electrochemical plating solution (e.g. another fast dipping step) compared to conventional process; and utilizes high-quality metal layers that can be deposited on fiber, yarn or fabric surfaces without heavy capital investment and large material consumption.