ISSN:
1042-7147
Keywords:
compatibilizer
;
polymer blends
;
recycling
;
waste plastic mixtures
;
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
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 coplymeric 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/PP blend than the SEBS-g-MAH blend.
Additional Material:
8 Ill.
Type of Medium:
Electronic Resource
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