Loss of plasticizers from polymer films to liquid environments: counterdiffusion aspects versus immersion temperature and ultra-violet-induced surface crosslinking

 
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1990 (EN)
Loss of plasticizers from polymer films to liquid environments: counterdiffusion aspects versus immersion temperature and ultra-violet-induced surface crosslinking (EN)

Duvis, T (EN)
Papaspyrides, CD (EN)

N/A (EN)

Plasticized poly(vinyl chloride) (PVC) sheets were irradiated with ultra-violet light before immersion in petroleum oils to prevent plasticizer migration and counterdiffusion effects. The penetration of the liquid environment into the sheets was monitored as a function of immersion time at different irradiation levels and immersion temperatures. White spirit and kerosene penetration passes through a distinct maximum with increasing immersion time, suggesting a two-step phenomenon with liquid transfer into and out of the PVC specimens. Nevertheless, in agreement with previous experimental results on plasticizer migration behaviour, the ultra-violet treatment followed appears encouraging: the maximum penetration values do not vary significantly with irradiation time, but the equilibrium values eventually attained are positively influenced, presenting a decrease often close to 50%. © 1990. (EN)

journalArticle

Plastics Films (EN)
Counterdiffusion Effects (EN)
Plasticizers (EN)
Dioctyl Phthalate (EN)
counterdiffusion (EN)
Ultraviolet Irradiation (EN)
Polyvinyl Chlorides--Thin Films (EN)
plasticizer migration (EN)
Kerosene (EN)
poly(vinyl chloride) (EN)
Petroleum Oils (EN)
Plasticizer Migration (EN)
Petroleum Products (EN)
petroleum oils (EN)
ultra-violet irradiation (EN)
dioctyl phthalate (EN)

Εθνικό Μετσόβιο Πολυτεχνείο (EL)
National Technical University of Athens (EN)

Polymer (EN)

English

1990


ELSEVIER SCI LTD (EN)



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