System und Verfahren zur Verbesserung der Haftung einer Wärmehärtenden Thermoplastischen Übergangsfläche

Details

Veröffentlichungs-Nr.

EP3772407

Aktenzeichen

EP20190018

Anmeldetag

7. August 2020

Veröffentlichung

12. Juli 2023

Erteilung

12. Juli 2023

Rechtsraum

EP

IPC

B29C65/48B29C65/00B29C65/02// B29C65/10B29L31/30

Abstract

Illustrative examples of forming and using suitably adapted materials for improving interface strength between thermoset-thermoplastic joined parts includes exposure of a thermoplastic substrate to a plasma to form an amine-functionalized substrate having amine chemical moieties disposed on a first surface. The first surface of the thermoplastic substrate is positioned adjacent to and contacts a second surface of a thermoset substrate to form a workpiece. The thermoset substrate includes epoxide chemical moieties on and within material forming the thermoset substrate. The workpiece is subsequently heated to form a structure, where heating of the workpiece causes covalent chemical bonds to form between the plasma-treated first surface of the thermoplastic substrate and the second surface of the thermoset substrate. Thereafter, additional thermoplastic components can be fusion bonded to a surface of the thermoplastic substrate opposite the first surface - thereby providing improved attachment of additional thermoplastic components to the thermoset substrate.

Anmelder

Firma

The Boeing Company

Land

🇺🇸 USA

Fachgebiete