Welding techniques for polymer or polymer composite components

摘要

A process for bonding a semi-crystalline or crystalline thermoplastic polymer to a thermosetting polymer component, the process including selecting compatible semi-crystalline thermoplastic polymer and uncured thermosetting polymer components wherein the curing temperature of the uncured thermosetting polymer components is above the melting temperature of the semi-crystalline thermoplastic polymer. The process includes locating the thermoplastic polymer in contact with the uncured thermosetting polymer component and heating the thermoplastic polymer and uncured thermosetting polymer or thermosetting polymer composite component to the curing temperature of the thermosetting polymer components and the thermoplastic polymer are able to at least partly interpenetrate before the thermosetting polymer cures. The thermoplastic polymer and cured thermosetting polymer component are then cooled such that the thermoplastic polymer is very strongly bonded to the cured thermosetting polymer component.

主权项

1. A process for bonding a semi-crystalline thermoplastic polymer to a thermosetting polymer component, the process including:
selecting compatible semi-crystalline thermoplastic polymer and uncured thermosetting polymer component wherein the curing temperature of the uncured thermosetting polymer component is above the melting temperature of the semi-crystalline thermoplastic polymer, locating the thermoplastic polymer in contact with the uncured thermosetting polymer component; wherein the semi-crystalline thermoplastic polymer and uncured thermosetting polymer components have Hansen solubility parameters indicative of the thermoplastic polymer and thermosetting components ability to interpenetrate; heating the semi-crystalline thermoplastic polymer and uncured thermosetting polymer component, wherein the component is a thermosetting polymer or thermosetting polymer composite, to the curing temperature of the thermosetting polymer component, where the uncured thermosetting polymer component and the thermoplastic polymer are able to at least partly interpenetrate before the thermosetting polymer cures; and cooling the thermoplastic polymer and cured thermosetting polymer component such that the thermoplastic polymer is very strongly bonded to the cured thermosetting polymer component.