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Influence of interfacial agents on the physicochemical characteristics of binary polyethylene/polyamide 6 and ternary polyethylene/polypropylene/polyamide 6 blends
Author(s) -
Beltrame Pier Luigi,
Castelli Antonella,
Pasquantonio Mario Di,
Canetti Maurizio,
Seves Alberto
Publication year - 1996
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/(sici)1097-4628(19960425)60:4<579::aid-app11>3.0.co;2-v
Subject(s) - polyamide , polypropylene , materials science , compatibilization , maleic anhydride , polyethylene , polymer blend , polymer chemistry , ternary operation , differential scanning calorimetry , copolymer , composite material , low density polyethylene , chemical engineering , polymer , physics , computer science , engineering , thermodynamics , programming language
Binary low‐density polythylene/polyamide 6 and ternary low‐density polyethylene/polypropylene/polyamide 6 blends were prepared by melt mixing, without and with the addition of two different commercial products [poly(ethylere‐ co ‐buthylacrylate‐ co ‐maleic anhydride) and poly(ethylene‐ co ‐vinylacetate) grafted with maleic anhydride] used as interfacial modifiers. More precisely, the polypropylene was a propylene/ethylene random copolymer, containg 6% by weight of ethylene. The polyamide 6/interfacial agent and polyethylene/ interfacial agent systems were also considered. Differential scanning calorimetry, microscopic observations—together with chemical etchings—and mechanical tests supported the occurrence of strong interactions at the interface, especially when using the buthyl acrylate‐based agent. The compatibilizing effect of the interfacial agents was also analyzed in the light of interfacial tension determinations. Eventually, low‐density polyethylene modifications induced by compatibilization were studied carrying out WAXD analysis. © 1996 John Wiley & Sons, Inc.