Abrasion and compression resistance of liquid-flame-spray-deposited functional nanoparticle coatings on paper (original) (raw)

2014

Abstract

• Liquid flame spray technology enables low-cost, large-scale nanoparticle deposition in roll-to-roll processes for controlling wettability and creating functional surfaces • SiO2 nanocoating has higher abrasion resistance than TiO2 coating, possibly due to better interparticle sintering • Wettability properties of the LFS nanoparticle coated paperboard are partially maintained after abrasion with a paper surface or compression through calendering • The changes in wettability are due to smoothening of the nanoparticle surface Changes in wettability properties during transport and in converting operations can be expected to be small • Challenges: - Nanoparticle release to air and safety aspects are unknown and difficult to quantify • Potential applications: - Printability control - Improved barrier and heat-sealing properties for extrusion coated board - Adhesion promotion in converting - Liquid absorption control in papermaking and converting operations - Functional surfaces, e.g., self-cleaning surfaces - Printed electronics applications - Microfluidics.

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