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6762740 
Journal Article 
Compatibilizer in polymer blends for the recycling of plastics waste .1. Preliminary studies on 50/50 wt% virgin polyblends 
Ha, CS; Park, HD; Kim, Y; Kwon, SK; Cho, WJ; , 
1996 
1 
Polymers for Advanced Technologies
ISSN: 1042-7147 
JOHN WILEY & SONS LTD 
W SUSSEX 
483-492 
WOS:A1996UZ53100019 
In this work, comparative studies have been made to investigate the effectiveness of several compatibilizers for three kinds of virgin plastic mixtures, high-density polyethylene (HDPE)/polypropylene (PP), low-density polyethylene (LDPE)/PP and HDPE/polystyrene (PS) blends, in order to gain insight into the recycling of wastes from those frequently encountered mixed plastics. Three copolymers were tested as potential compatibilizers for those blends: ethylene-propylene-diene terpolymer (EPDM)-g-maleic anhydride (EPDM-g-MAH) for HDPE/PP and LDPE/PP blends, styrene-ethylene butylene-styrene) (SEBS) and SEBS-g-MAH, for HDPE/PS blends. The properties and morphology of each ternary blend containing a copolymeric compatibilizer were measured with differential scanning calorimeter, X-ray diffractometer, tensile tester and scanning electron microscope. The concentration of the graft copolymer was varied from 0 to 20 phr, whereas the blend composition was fixed at 50/50 by weight %. It was found that EPDM-g-MAH showed good compatibilizing effect for LDPE/PP blends but not for HDPE/PP blends, in general. it was also found that SEBS showed much better compatibilizing effects for HDPE/PS blend than the SEBS-g-MAH blend.