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Mechanical properties and volume dilatation of HDPE/CaCO 3 blends with and without impact modifier
Author(s) -
Yang YuLin,
Bai ShuLin,
G'Sell Christian,
Hiver JeanMarie
Publication year - 2006
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.20612
Subject(s) - high density polyethylene , materials science , maleic anhydride , composite material , calcium carbonate , extensometer , polyethylene , volume (thermodynamics) , cavitation , ultimate tensile strength , elastomer , polymer , copolymer , physics , quantum mechanics , mechanics
Different blends of high‐density polyethylene (HDPE) with calcium carbonate (CaCO 3 ) were mechanically tested under uniaxial tension with or without poly(ethylene‐ co ‐octene) elastomer grafted with maleic anhydride (POE g ), as an impact modifier. In some materials, the surface of the CaCO 3 was treated with an amino acid and in others the mineral particles were left untreated. The stress–strain behavior were determined at constant true strain rate by using the VidéoTraction © system. Also, the volume changes upon stretching was assessed by means of the video extensometer and correlated with X‐ray densitometry measurements. The dependence of modulus, yield stress, and cavitation is shown to depend on the relative percentage of the three constituents. In particular, the cavitation rate increases markedly with the CaCO 3 content and decreases with the POE g content. By contrast, the surface pretreatment of the CaCO 3 particles appear to be of much lesser importance. POLYM. ENG. SCI., 46:1512–1522, 2006. © 2006 Society of Plastics Engineers