Aramid-mica composite insulating nanopaper and preparation method thereof
US11885071B2 · kind B2 · utility
1Cited by
0References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 24, 2021 |
| Grant date | Jan 30, 2024 |
| Priority date | — |
| Expiry date | Nov 24, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB82Y40/00
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An aramid-mica composite insulating nanopaper and a preparation method thereof are disclosed. A mixture of mica and urea is subjected to a solid-phase ball milling, to obtain nano mica modified with amino groups on the surface, which is then assembled with the aramid nanofiber by stepwise suction filtration according to the present disclosure, to form an ordered nanopaper, thereby obtaining an aramid-mica composite insulating nanopaper with ultra-high insulation performances.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.