Patent ID: 11885071
Assignee: SHAANXI UNIVERSITY OF SCIENCE & TECHNOLOGY
Field: Textile and paper machines (Mechanical engineering)
Classification: CPC D  H  B | IPC B  D  H

Claim 0:
1. A method for preparing an aramid-mica composite insulating nanopaper, comprising,
ball milling and mixing mica and urea to obtain a ball-milled material;
washing the ball-milled material to remove free urea from the ball-milled material to obtain a washed solid;
dispersing the washed solid in water to obtain a dispersion;
subjecting an aramid nanofiber dispersion to a first vacuum filtration to obtain a solid;
adding the dispersion to the solid to obtain a mixture;
subjecting the mixture to a second vacuum filtration to obtain a mixed solid;
performing in sequence a third vacuum filtration and a fourth vacuum filtration on the mixed solid to obtain a final mixed solid; and
drying the final mixed solid to obtain the aramid-mica composite insulating nanopaper.