Ultrahigh molecular weight polyethylene (UHMWPE) could be used in many fields because of its outstanding properties such as excellent toughness, high abrasion resistance, low friction, good chemical resistance and biocompatibility. However its poor processability limits its application. The melting fluidity of UHMWPE must be enhanced in order to mold it with conventional thermoplastic processing equipment .In this work, polyethylene glycol (PEG), PEG/diatomite hybrid (PPA1), PEG/glass bead hybrid (PPA2) wer...