Abstract:

In attempt to improve the compatibility between hydrophilic ramie fibers and hydrophobic polypropylene(PP), 1-octylene treatment and atmospheric pressure plasma jet (APPJ) treatment were used on ramie fibers. The influence of the treatment sequence on modification effect was also investigated in this study. Surface morphology, wettability, surface chemical constitution and interfacial shear strength(IFSS) between ramie fibers and PP were studied to evaluate the modification effect. The result shows that fibers treated with plasma treatment followed by 1-octylene treatment get a most significant increase of carbon content and the IFSS between ramie fibers and PP increased by 40.0%, while fibers treated with 1-octylene treatment followed by plasma treatment show only 18.2% increase of the IFSS.

Key words: ramie fibers 1-octylene, atmospheric pressure plasma jet, hydrophobicity, surface modification, interfacial shear strength