Synthesis and applications of near-infrared absorbing additive copper hydroxyphosphate

Darton, Richard; Pérez-Barrado, Elena

doi:10.1557/mrc.2018.144

Synthesis and applications of near-infrared absorbing additive copper hydroxyphosphate

Darton, Richard; Pérez-Barrado, Elena

Authors

Richard Darton r.j.darton@keele.ac.uk

Elena Pérez-Barrado

Abstract

The use of copper hydroxyphosphate (Cu2PO4OH), also called libethenite, as a near-infrared (NIR) absorbing additive has been investigated. Samples were synthesized by using a hydrothermal treatment or simple wet chemical processing, which was later easily upscaled. All synthesized samples showed a strong absorption in the NIR region. Trials were conducted to produce laser-marked plastic plates and security IR ink printing tests. It was found that when incorporated in plastic and ink formulation, Cu2PO4OH added good NIR absorption properties without influencing other finished product properties too much, which confirms that it is a suitable additive that can be readily manufactured at room temperature and without pressured equipment.

Journal Article Type	Article
Acceptance Date	Jul 16, 2018
Publication Date	Sep 1, 2018
Journal	MRS Communications
Print ISSN	2159-6859
Publisher	Cambridge University Press
Peer Reviewed	Peer Reviewed
Volume	8
Pages	1070-1078
DOI	https://doi.org/10.1557/mrc.2018.144
Keywords	Cu, laser, additive
Publisher URL	https://doi.org/10.1557/mrc.2018.144