The paper dealt with the influences of the o

o' diallyl bisphenol A ether(DBAE) grafted low density polyethylene(LDPE g DBAE) as a compatibilizer on HDPE/PC blend system. The efficient compatible effects of LDPE g DBAE on HDPE/PC blends were confirmed through morphology observation

thermal and mechanical properties test

as well as crystalizing behaivor. Data showed that the HDT of the 65/35 HDPE/PC blend in the presence of 10phr LDPE g DBAE was 92℃ and tensile strength 30.2MPa

notched impact strength 29.8kJ/m2

while the HDT of the same composition blend with no compatibilizer was only 82℃ and tensile strength 27.3MPz

notched impact strength 15.5kJ/m2.The optimal concentration of the compatibilizer was 10phr and it was of benefit to improving properties of HDPE/PC blends with increasing the graft degree of LDPE-g-DBAE.