Get access

Deformation and fracture of Mg(OH)2-filled polyolefin composites under tensile stress

Authors

  • Song Zhu,

    1. School of Chemistry and Chemical Technology, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China
    Search for more papers by this author
  • Yong Zhang,

    Corresponding author
    1. School of Chemistry and Chemical Technology, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China
    • School of Chemistry and Chemical Technology, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China
    Search for more papers by this author
  • Yinxi Zhang

    1. School of Chemistry and Chemical Technology, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China
    Search for more papers by this author

Abstract

The tensile behavior of high-density polyethylene (HDPE), polypropylene (PP), and linear low-density polyethylene composites containing a titanate coupling agent and silicone-oil-treated magnesium hydroxide [Mg(OH)2] was studied. The increase in the extent of the ultimate elongation of the composites was affected by the yield stress and the strain-hardening tendency of the polymer matrix in the composites. Ethylene–propylene–diene rubber and octane–ethylene copolymer were introduced to adjust the yield stress of PP and HDPE. Although the ultimate elongation of PP/elastomer and HDPE/elastomer blends was higher than that of virgin PP or HDPE, the ultimate elongation of the filled composites dropped at a high content of Mg(OH)2. Scanning electron microscopy showed that the difference in the uniformity of the interface exfoliation decreased with the yield stress of the matrix. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 89: 3248–3255, 2003

Get access to the full text of this article

Ancillary