Thermoplastic coating and removal using bonding interface with catalytic nanoparticles

摘要

The present disclosure generally describes techniques suitable for use in the construction or recycling of composite materials. An article may comprise a thermoplastic coupled to a bonding interface layer, with a coating layer applied to the surface of the bonding interface layer. A bonding interface layer may comprise catalytic nanoparticles embedded within and/or encapsulated by one or more radiatively unstable polymers. Application of ionizing radiation to the article may release a catalyst at the bonding interface. Application of heat and/or stress to the article may enhance catalytic degradation of the remaining bonding interface and uncoupling of the thermoplastic from the coating layer. Embodiments of methods, compositions, articles and/or systems may be disclosed and claimed.

主权项

1. A method for removing a coating from an article of manufacture, the method comprising:
providing an article of manufacture having a coating layer, a thermoplastic surface, and a bonding interface disposed between and coupled to the thermoplastic surface and the coating layer, wherein the bonding interface comprises a radiatively unstable polymer and catalytic nanoparticles embedded within the radiatively unstable polymer; applying ionizing radiation to at least the bonding interface to at least partially degrade the radiatively unstable polymer and facilitate the release of the catalytic nanoparticles from the radiatively unstable polymer, wherein the released catalytic nanoparticles increase catalytic oxidation at the bonding interface; and applying one or more of heat and force to the article to uncouple the coating layer from the article.