公开(公告)号：US11319675B2

公开(公告)日：2022-05-03

申请号：US16943756

申请日：2020-07-30

申请人： Hunan University

发明人： Jianfeng Wang ,  Fanzhan Zeng ,  Guang Xiao

IPC分类号： D21H27/00 ,  D21D5/00 ,  D21F11/00 ,  D21H13/26 ,  D21H17/67 ,  D21H17/68 ,  D21H21/34 ,  D21H23/04

摘要： The present invention provides an aramid nanofiber (ANF)-based insulation paper and a preparation method thereof, and relates to the technical field of composite insulation material. The ANF-based insulation paper provided in the present invention includes ANFs and inorganic insulation materials. The ANFs have a bifurcated geometry and form a three-dimensional network structure, and the inorganic insulation materials are distributed in the three-dimensional network structure. The ANF paper provided in the present invention, with optimal electrical and mechanical properties and excellent insulation and flame-resistance, can replace mica tapes, aramid papers and aramid mica papers on the current market for insulation, and thus the thickness for insulation can be reduced. The present invention provides a method for preparing the ANF-based insulation paper. The preparation method provided in the present invention is simple, has excellent operability, and can be used for continuous preparation, thereby facilitating the realization of industrial production.

公开(公告)号：US20210062429A1

公开(公告)日：2021-03-04

申请号：US16943756

申请日：2020-07-30

申请人： Hunan University

发明人： Jianfeng Wang ,  Fanzhan Zeng ,  Guang Xiao

IPC分类号： D21H27/00 ,  D21H13/26 ,  D21H17/68 ,  D21H17/67 ,  D21H21/34 ,  D21H23/04 ,  D21D5/00 ,  D21F11/00

摘要： The present invention provides an aramid nanofiber (ANF)-based insulation paper and a preparation method thereof, and relates to the technical field of composite insulation material. The ANF-based insulation paper provided in the present invention includes ANFs and inorganic insulation materials. The ANFs have a bifurcated geometry and form a three-dimensional network structure, and the inorganic insulation materials are distributed in the three-dimensional network structure. The ANF paper provided in the present invention, with optimal electrical and mechanical properties and excellent insulation and flame-resistance, can replace mica tapes, aramid papers and aramid mica papers on the current market for insulation, and thus the thickness for insulation can be reduced. The present invention provides a method for preparing the ANF-based insulation paper. The preparation method provided in the present invention is simple, has excellent operability, and can be used for continuous preparation, thereby facilitating the realization of industrial production.