Effects of Addition of Oily Soil to Particulate Soil on Adhesion to Poly(ethylene terephthalate) Film Treated by O2 Plasma
Vol. 52, No. 4, pp. 215-223,
Aug. 2015
10.12772/TSE.2015.52.215
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Abstract
The effect of the addition of oily soil to particulate soil dispersions on the adhesion of α-Fe2O3 particles to poly(ethylene terephthalate) (PET) films treated by O2 plasma was investigated as a function of the ionic strength, surfactant concentration, and surfactant type. After O2 plasma treatment, the contact angle of the film decreased with increasing treatment time in water and surfactant solutions. In general, the adhesion of the particle to the PET film was relatively higher with the addition of oily soil to the particulate dispersion than for the single-particulate dispersion solution. In addition, the adhesion of the particle to the film was higher in the dispersion solution mixed with polar rather than nonpolar oily soil. The effect of mixing oily soil into the particulate dispersions on the adhesion of the particle to the film resulted in no significant change in the concentration of the surfactant and ionic strength regardless of the treatment condition. The adhesion of the α-Fe2O3 particles to the PET film was related to the contact angle and surface roughness; the coefficients of correlation between the adhesion of the particle to the film and the surface roughness and contact angle were over 0.9.
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