公开(公告)号：US12252817B2

公开(公告)日：2025-03-18

申请号：US18260025

申请日：2022-09-08

Applicant: ZHENGZHOU UNIVERSITY

Inventor： Ming Huang ,  Jun Zhou ,  Na Zhang ,  Chuntai Liu ,  Yuhu Chen ,  Yang Wang ,  Xianzhang Shi ,  Wei Wei

IPC: D02J1/18

Abstract: Provided is an airflow disturbance type carbon fiber spreading device. The device includes an unwinding module, an unwinding tension control module, an airflow disturbance spreading module, a winding tension stabilizing module, a deviation correction module and a winding module which are sequentially arranged along a feeding direction. The spreading mechanism includes an airflow disturbance spreading module, the airflow disturbance spreading module includes two airflow disturbance spreading assemblies, each airflow disturbance spreading assembly includes a centrifugal fan, the centrifugal fan communicates with the bottom of an airflow duct, and three spreading guide shafts are arranged side by side on the top of the airflow duct. A tension adjusting assembly is provided between the airflow disturbance spreading assemblies. A seventh spreading guide shaft (13) is located at the upper port of an airflow duct I (25) and is connected to a slider module II (34).

公开(公告)号：US20250066960A1

公开(公告)日：2025-02-27

申请号：US18719142

申请日：2023-03-09

Applicant: Zhengzhou University

Inventor： Na Zhang ,  Maolin Zheng ,  Ming Huang ,  Chuntai Liu ,  Xiaofeng Cui ,  Songlin Du ,  Wei Wei

IPC: D04H1/4242 ,  B32B37/10 ,  D04H1/587 ,  D04H1/645 ,  H05B3/14

Abstract: Provided is a method for preparing an electrothermal heating sheet from carbon fiber braided fabric scraps, including: cutting clumps of disordered carbon fiber braided fabric scraps into chopped carbon fibers; washing the chopped carbon fibers by separately using acetone and deionized water, and drying; preparing a corresponding dispersion; adding the chopped carbon fibers to the dispersion, and fully dispersing; performing vacuum filtration by using a double-layer metal screen, and drying to obtain a chopped carbon fiber felt; cutting the chopped carbon fiber felt, sticking electrodes to two ends of the chopped carbon fiber felt, and covering thermoplastic polyurethane (TPU) sheets on front and back surfaces of the chopped carbon fiber felt to form a heating sheet product having electrothermal performance and electromagnetic shielding performance. The direct discarding of the carbon fiber braided fabric scraps and the scraps resulting from cutting in the preparation process as wastes may result in not only great wasting of materials but also in environmental pollution. The method fully utilizes the carbon fiber braided fabric scraps and is low in cost, and the prepared product has excellent electrothermal performance and electromagnetic shielding performance.