THE APPLICATION OF DENDRIMER IN ULTRAHIGH MOLECULAR WEIGHT POLYETHYLENE PROCESSING

摘要

In this paper, poly(amido amine) (PAMAM) dendrimer, its lauryl quaternary ammonium salt and steary quaternary ammonium salt were used for blending modification of ultrahigh molecular weight polyethylene. The effects of modifiers on viscosity reduction, crystalline properties were investigated by torque rheometer, differential scanning calorimetry, X-ray diffraction analysis, etc. The results showed that three modifiers could decrease the melt viscosity of UHMWPE, which could be further explained from the view of distanglement.