Abstract
Cellophanewasplasmatreatedinethyleneatatmosphericpressure,fortheaimingofformingahydrophobicsurface・Contactangleswithdiiodomethane,glycerineandwatei､weremeasured,andsurface-freeenergyofsolidsurfaceswascalculated.FT-IRspecti､aweretakenforplasma-treatedcellophanes.Theamountofdepositionwascalculatedbyweightincreasebeforeandaftertheplasmatreatment・Surfacesofplasma-treatedcellophanewereobservedbyaSEM.Acellophanesurfacewaschangedfromhydrophilictohydrophobicbyplasmatreatment.FT-IRspectrasuggestedthattherewasdefinitequantityof-CH2CH2-and>C=0groupsonplasmatreatedcellophane.Theamountofdepositionincreasedwithanincreaseofethylenecontentinnitrogen,carbondioxideorargonmixedgas.FromtheresultsofSEMobservation,asubstancedepositedonsurfacesofcellophanetreatedbymixedgasesshowedtheshapeoffinethreadandthethreadswereentangledofthemselves.
