Embedded co-cured composite material with large-damping and electromagnetic wave absorbing properties and preparation method and application thereof
US11541627B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 4, 2020 |
| Grant date | Jan 3, 2023 |
| Priority date | — |
| Expiry date | Jan 4, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K9/0071
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Disclosed are an embedded co-cured composite material with large-damping and electromagnetic wave absorbing properties and a preparation method and an application thereof, belonging to damping composite materials. The embedded co-cured composite material is formed by interlacing a plurality of electromagnetic wave absorbing prepreg layers and a plurality of electromagnetic wave absorbing damping layers. Each of the electromagnetic wave absorbing prepregs layers includes a fiber cloth, a micro-nano electromagnetic wave absorbing material and a resin. Contents of the micro-nano electromagnetic wave absorbing material in the electromagnetic wave absorbing prepreg layers and the electromagnetic wave absorbing damping layers have a gradient increase or decrease according to a sequence of the electromagnetic wave absorbing prepreg layers. Each of the electromagnetic wave absorbing damping layers includes a viscoelastic damping material and the micro-nano electromagnetic wave absorbing material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.