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Effect of filler partitioning on the mechanical properties of TPO/nanosilica composites
Author(s) -
Liu Yiqun,
Kontopoulou Marianna
Publication year - 2007
Publication title -
journal of vinyl and additive technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 35
eISSN - 1548-0585
pISSN - 1083-5601
DOI - 10.1002/vnl.20118
Subject(s) - polyolefin , materials science , composite material , elastomer , filler (materials) , ethylene propylene rubber , thermoplastic elastomer , natural rubber , modulus , dispersion (optics) , elongation , polypropylene , polymer , copolymer , ultimate tensile strength , physics , layer (electronics) , optics
Nanosilica (SiO 2 ) is used as a reinforcing filler in PP/elastomer thermoplastic polyolefin (TPO) blends containing ethylene‐octene polyolefin elastomer (POE), ethylene‐propylene rubber (EPR), and maleated EPR. The localization and dispersion of the filler are controlled by adding maleated derivatives to the matrix or the dispersed phase. A separated morphology, consisting of SiO 2 residing in the PP matrix, is necessary to achieve improvements in modulus. Filled TPOs containing POE have the best performance and exhibit improved moduli while retaining high values of elongation. J. VINYL ADDIT. TECHNOL., 13:147–150, 2007. © 2007 Society of Plastics Engineers