Preparation method of MXene/rGO/CNT composite electromagnetic shielding material with three-dimensional hollow structure

• Main Authors: HAN JIAHONG, LI YANG, ZHAO YILIN, LI BIN, LI ZHONGMING, KONG SHUOSHUO, SHEN ZHENJIE
• Format: Patent
• Language: Chinese; English
• Published: 29.03.2024
• Subjects: CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS; PRINTED CIRCUITS

The invention discloses a preparation method of an MXene/rGO/CNT composite electromagnetic shielding material with a three-dimensional hollow structure, which comprises the following steps: etching a Ti3AlC2MAX phase by adopting an in-situ generation hydrofluoric acid etching method to prepare a dispersion liquid of few layers of Ti3C2TxMXene, adding polymethyl methacrylate microspheres, graphene oxide and carbon nanotubes through a self-assembly and sacrificial template method to carry out hybridization modification treatment on the dispersion liquid, and preparing the MXene/rGO/CNT composite electromagnetic shielding material with the three-dimensional hollow structure. The Ti < 3 > C < 2 > T < x > MXene/rGO/CNT composite aerogel material with the three-dimensional hollow structure is prepared through freeze drying and heat treatment processes; the problem that the MXene sheet layers are easy to stack is solved, the material density is reduced, the electromagnetic wave loss path is increased, the electromag