Fiber-composite material and a method for producing the same

US6673452B1 · kind B1 · utility

Assignee

• INSTITUT FÜR POLYMERFORSCHUNG DRESDEN E.V. · DE

Inventors

• Horst Frenzel · Dresden, DE
• Andrzej Bledzki · Vellmar, DE
• Andreas Kessler · Munich, DE

Key dates

• Filing date: Apr 19, 2002
• Grant date: Jan 6, 2004
• Expiry date: Apr 19, 2022

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31525
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to the field of chemistry and to a fiber composite material which is used, for example, in aircraft. The invention provides a fiber composite material in which delamination can be significantly reduced. This is achieved by a fiber composite material with multiple layers, each containing a duromer matrix and reinforcing fibers, inner layers contain fibers featuring a high level of adhesion to the duromer matrix, outer layers contain fibers featuring a low level or no adhesion to duromer matrix. There is also provided a method in which the reinforcing fibers include a coating and the layers are structured in such a way that, on the interior of the fiber composite material, layers are arranged which contain fibers with a high level of adhesion to the duromer matrix and that outer layers which contain fibers with a lower or low level of adhesion, or no adhesion to the duromer matrix are arranged on and/or around these inner layers.