TY - JOUR

T1 - Surface modification of nanofibrillated cellulose films by atmospheric pressure dielectric barrier discharge

A1 - Siró,Istvan

A1 - Kusano,Yukihiro

A1 - Norrman,Kion

A1 - Goutianos,Stergios

A1 - Plackett,David

AU - Siró,Istvan

AU - Kusano,Yukihiro

AU - Norrman,Kion

AU - Goutianos,Stergios

AU - Plackett,David

PB - V S P

PY - 2013

Y1 - 2013

N2 - A dielectric barrier discharge in a gas mixture of tetrafluoromethane (CF4) and O2 was used for tailoring the surface properties of nanofibrillated cellulose (NFC) films. The surface chemical composition of plasma-modified NFC was characterized by means of X-ray photoelectron spectroscopy and time-of-flight secondary ion mass spectrometry, while surface morphology was illustrated by atomic force microscopy. Wettability was characterized through the static sessile drop method. The adhesion between NFC and polylactide (PLA) laminated films was tested by the double cantilever beam technique. As a result of atmospheric pressure plasma treatment, the water contact angle of NFC films increased and the values were comparable with those of PLA films. On the other hand, surface chemical characterization revealed inhomogeneity of the plasma treatment and limited improvement in adhesion between NFC and PLA films. Further research in this direction is required in order to enhance the uniformity of the plasma treatment results.

AB - A dielectric barrier discharge in a gas mixture of tetrafluoromethane (CF4) and O2 was used for tailoring the surface properties of nanofibrillated cellulose (NFC) films. The surface chemical composition of plasma-modified NFC was characterized by means of X-ray photoelectron spectroscopy and time-of-flight secondary ion mass spectrometry, while surface morphology was illustrated by atomic force microscopy. Wettability was characterized through the static sessile drop method. The adhesion between NFC and polylactide (PLA) laminated films was tested by the double cantilever beam technique. As a result of atmospheric pressure plasma treatment, the water contact angle of NFC films increased and the values were comparable with those of PLA films. On the other hand, surface chemical characterization revealed inhomogeneity of the plasma treatment and limited improvement in adhesion between NFC and PLA films. Further research in this direction is required in order to enhance the uniformity of the plasma treatment results.

KW - Adhesion

KW - Compatibility

KW - Contact angle

KW - Hydrophobicity

KW - Polylactide

KW - Nanofibrillated cellulose

KW - Surface roughness

U2 - 10.1080/01694243.2012.705522

DO - 10.1080/01694243.2012.705522

JO - Journal of Adhesion Science and Technology

JF - Journal of Adhesion Science and Technology

SN - 0169-4243

IS - 3

VL - 27

SP - 294

EP - 308

ER -