Investigation of crystallinity effects on the surface of oxygen plasma treated low density polyethylene using X-ray photoelectron spectroscopy

摘要: Plasma treated polymer surface shows rapid hydrophobic recovery after plasma treatment. Surface rearrangement and the hydrophilicity change of low density polyethylene (LDPE) films with different degrees crystallinity oxygen treatment were investigated using X-ray photoelectron spectroscopy (XPS) water contact angle measurements. Since mobility chain was restricted in crystalline region, movement high would be reduced. Water angles quenched annealed LDPE just almost same contents slightly higher than that LDPE. However, showed slower raise kept concentration increasing aging time. By deconvolution carbon XPS spectra, it observed major group contributed to decrease hydroxyl groups decayed faster while other species constant or decreased slightly. Increasing reduce