Influences of ethylene–butylacrylate–glycidyl methacrylate on morphology and mechanical properties of poly(butylene terephthalate)/polyolefin elastomer blends

Authors

  • Li Yang,

    1. National Engineering Laboratory for Plastic Modification and Processing National Engineering Research Center of Novel Equipment for Polymer Processing, South China University of Technology, Guangzhou, People's Republic of China
    Search for more papers by this author
  • Hong Chen,

    1. National Engineering Laboratory for Plastic Modification and Processing National Engineering Research Center of Novel Equipment for Polymer Processing, South China University of Technology, Guangzhou, People's Republic of China
    Search for more papers by this author
  • Shikui Jia,

    1. National Engineering Laboratory for Plastic Modification and Processing National Engineering Research Center of Novel Equipment for Polymer Processing, South China University of Technology, Guangzhou, People's Republic of China
    Search for more papers by this author
  • Xiang Lu,

    1. National Engineering Laboratory for Plastic Modification and Processing National Engineering Research Center of Novel Equipment for Polymer Processing, South China University of Technology, Guangzhou, People's Republic of China
    Search for more papers by this author
  • Jintao Huang,

    1. National Engineering Laboratory for Plastic Modification and Processing National Engineering Research Center of Novel Equipment for Polymer Processing, South China University of Technology, Guangzhou, People's Republic of China
    Search for more papers by this author
  • Xingxing Yu,

    1. Guangzhou KINGFA Sci. & Tech. Co., Ltd, Guangzhou, People's Republic of China
    Search for more papers by this author
  • Kunhao Ye,

    1. Guangzhou KINGFA Sci. & Tech. Co., Ltd, Guangzhou, People's Republic of China
    Search for more papers by this author
  • Guangjian He,

    1. National Engineering Laboratory for Plastic Modification and Processing National Engineering Research Center of Novel Equipment for Polymer Processing, South China University of Technology, Guangzhou, People's Republic of China
    Search for more papers by this author
  • Jinping Qu

    Corresponding author
    1. National Engineering Laboratory for Plastic Modification and Processing National Engineering Research Center of Novel Equipment for Polymer Processing, South China University of Technology, Guangzhou, People's Republic of China
    Search for more papers by this author

ABSTRACT

Elastomer ethylene–butylacrylate–glycidyl methacrylate (PTW) containing epoxy groups were chosen as toughening modifier for poly(butylene terephthalate) (PBT)/polyolefin elastomer (POE) blend. The morphology, thermal, and mechanical properties of the PBT/POE/PTW blend were studied. The infrared spectra of the blends proved that small parts of epoxy groups of PTW reacted with carboxylic acid or hydroxyl groups in PBT during melt blending, resulting in a grafted structure which tended to increase the viscosity and interfere with the crystallization process of the blend. The morphology observed by scanning electron microscopy revealed the dispersed POE particles were well distributed and the interaction between POE and PBT increased in the PBT/POE/PTW blends. Mechanical properties showed the addition of PTW could lead to a remarkable increase about 10-times in impact strength with a small reduction in tensile strength of PBT/POE blends. Differential scanning calorimetry results showed with increasing PTW, the crystallization temperature (Tc) and crystallinity (Xc) decreased while the melting point (Tm) slightly increased. Dynamic mechanical thermal analysis spectra indicated that the presence of PTW could improve the compatibility of PBT/POE blends. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014, 131, 40660.

Ancillary