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Dynamic mechanical properties and morphology of high‐density polyethylene/CaCO 3 blends with and without an impact modifier
Author(s) -
Yang YuLin,
G'Sell Christian,
Hiver JeanMarie,
Bai ShuLin
Publication year - 2006
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/app.25619
Subject(s) - materials science , maleic anhydride , elastomer , high density polyethylene , differential scanning calorimetry , polymer blend , dynamic mechanical analysis , octene , crystallization , composite material , polyethylene , ternary operation , glass transition , polymer chemistry , copolymer , chemical engineering , polymer , physics , computer science , engineering , thermodynamics , programming language
Dynamic mechanical analysis and differential scanning calorimetry were used to investigate the relaxations and crystallization of high‐density polyethylene (HDPE) reinforced with calcium carbonate (CaCO 3 ) particles and an elastomer. Five series of blends were designed and manufactured, including one series of binary blends composed of HDPE and amino acid treated CaCO 3 and four series of ternary blends composed of HDPE, treated or untreated CaCO 3 , and a polyolefin elastomer [poly(ethylene‐ co ‐octene) (POE)] grafted with maleic anhydride. The analysis of the tan δ diagrams indicated that the ternary blends exhibited phase separation. The modulus increased significantly with the CaCO 3 content, and the glass‐transition temperature of POE was the leading parameter that controlled the mechanical properties of the ternary blends. The dynamic mechanical properties and crystallization of the blends were controlled by the synergistic effect of CaCO 3 and maleic anhydride grafted POE, which was favored by the core–shell structure of the inclusions. The treatment of the CaCO 3 filler had little influence on the mechanical properties and morphology. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 103: 3907–3914, 2007