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Regimes of polymer behaviour in drop-on-demand ink-jetting


Type

Conference Object

Change log

Authors

Hoath, SD 
Hutchings, IM 
Harlen, OG 
McIlroy, C 
Morrison, NF 

Abstract

Three regimes of fast DoD jetting behaviour for solutions of mono-disperse linear polymers have been linked to the underlying polymer molecular chains and their fully extended length L in good solvents. This allows scaling laws in molecular weight to be predicted and applied to experimental jetting results from different DoD print heads. The higher extensional flows encountered in high speed jetting in viscous solvents can fully stretch linear molecules outside the nozzle, permitting jetting of higher polymer content than for purely elastic behaviour. These results are significant for DoD printing at raised jet speeds and will apply to any DoD print head jetting linear polymer solutions.

Description

Keywords

polymer, ink-jet, drop-on-demand, jetting behaviour, model, experiments, simulations

Journal Title

International Conference on Digital Printing Technologies

Conference Name

Non-Impact Printing 28th Conference

Journal ISSN

Volume Title

Publisher

Publisher DOI

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Sponsorship
Engineering and Physical Sciences Research Council (EP/H018913/1)
This work was supported by EPSRC grant number RG55605