Effect of surface modifiers and surface modification methods on properties of acrylonitrile–butadiene–styrene/poly(methyl methacrylate)/nano-calcium carbonate composites

Authors

  • Aimin Zhang,

    1. Key Laboratory of Liquid Structure and Heredity of Materials, Ministry of Education, Shandong University, Jinan 250061, Shandong, People's Republic of China
    2. Engineering Research Center for Mold & Die Technologies, Shandong University, Jinan 250061, Shandong, People's Republic of China
    3. Center of Material Characterization & Analysis, Shandong University, Jinan 250061, Shandong, People's Republic of China
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  • Guoqun Zhao,

    Corresponding author
    1. Key Laboratory of Liquid Structure and Heredity of Materials, Ministry of Education, Shandong University, Jinan 250061, Shandong, People's Republic of China
    2. Engineering Research Center for Mold & Die Technologies, Shandong University, Jinan 250061, Shandong, People's Republic of China
    • Key Laboratory of Liquid Structure and Heredity of Materials, Ministry of Education, Shandong University, Jinan 250061, Shandong, People's Republic of China
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  • Yanjin Guan

    1. Key Laboratory of Liquid Structure and Heredity of Materials, Ministry of Education, Shandong University, Jinan 250061, Shandong, People's Republic of China
    2. Engineering Research Center for Mold & Die Technologies, Shandong University, Jinan 250061, Shandong, People's Republic of China
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Abstract

Nano-calcium carbonate (nano-CaCO3) was used in this article to fill acrylonitrile–butadiene–styrene (ABS)/poly(methyl methacrylate) (PMMA), which is often used in rapid heat cycle molding process (RHCM). To achieve better adhesion between nano-CaCO3 and ABS/PMMA, nano-CaCO3 particles were modified by using titanate coupling agent, aluminum–titanium compound coupling agent, and stearic acid. Dry and solution methods were both utilized in the surface modification process. ABS/PMMA/nano-CaCO3 composites were prepared in a corotating twin screw extruder. Influence of surface modifiers and surface modification methods on mechanical and flow properties of composites was analyzed. The results showed that collaborative use of aluminum–titanium compound coupling agent and stearic acid for nano-CaCO3 surface modification is optimal in ABS/PMMA/nano-CaCO3 composites. Coupling agent can increase the melt flow index (MFI) and tensile yield strength of ABS/PMMA/nano-CaCO3 composites. The Izod impact strength of composites increases with the addition of titanate coupling agent up to 1 wt %, thereafter the Izod impact strength shows a decrease. The interfacial adhesion between nano-CaCO3 and ABS/PMMA is stronger by using solution method. But the dispersion uniformity of nano-CaCO3 modified by solution method is worse. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013

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