Plasticization of carbon fibers
US4336283A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 16, 1976 |
| Grant date | Jun 22, 1982 |
| Priority date | — |
| Expiry date | Aug 16, 1996 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01F11/121
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An improved method of manufacturing articles containing carbon fibers when the fibers are temporarily plasticized to render them more flexible thereby permitting tortuous mechanical manipulation of the fibers to be carried out with little or no mechanical damage. The improvement comprises exposing the carbon fibers to agents capable of intercalating single crystals of graphite, such as bromine or iodine monochloride which have the effect of plasticizing the fibers by lowering their tensile modulus. While the fiber yarns are appreciably more flexible in the plasticized state, and have a higher elongation-at-break, on removal of the plasticizer they tend to return to their original state but retain a measurable degree of the shape imparted to them.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.