Adhesion improvement on the inner side of LLDPE/PA tubular film exposed to DCSBD roll-to-roll plasma system from the outer side of the film

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Authors

ŠTĚPÁNOVÁ Vlasta ŠRÁMKOVÁ Petra SIHELNÍK Slavomír ZEMÁNEK Miroslav JURMANOVÁ Jana STUPAVSKÁ Monika KOVÁČIK Dušan

Year of publication 2023
Type Article in Periodical
Magazine / Source Plasma Processes and Polymers
MU Faculty or unit

Faculty of Science

Citation
Web https://doi.org/10.1002/ppap.202200226
Doi http://dx.doi.org/10.1002/ppap.202200226
Keywords DCSBD; film-to-meat adhesion; food packaging; LLDPE/PA tubular film; roll-to-roll reactor
Attached files
Description Diffuse coplanar surface barrier discharge (DCSBD) was used to activate the opposite side of the plasma-exposed linear low-density polyethylene/polyamide (LLDPE/PA) tubular film of multilayer casing. We determined that conductive metal rubber roller in the DCSBD system allowed the formation of microfilaments perpendicular to the film surface, resulting in improved wettability and adhesion of inner LLDPE side of the tubular film. These findings were supported by increasing the concentration of polar functional groups. Based on these remarkable outcomes obtained after a very short plasma exposure time of 0.5 s, DCSBD roll-to-roll system in proper arrangement affords adhesion improvement of the opposite side of the treated film without any material damage, hence can compete with industrial corona in commercial sphere of plasma treatments.
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