Characterization and textile application of microcapsules containing /n-octadecane and produced from nano zinc oxide dopped gelatin/ gum arabic and chitosan/gum arabic Nano çi˙nko oksit takvi˙yeli˙ jelati˙n/arap zamki ve ki˙tosan/arap zamkindan üreti˙len ve n-oktadekan i˙çeren mi˙krokapsülleri˙n karakteri˙zasyonu ve teksti˙l uygulamasi