Journal of Materials Science

, Volume 42, Issue 3, pp 841–846 | Cite as

Impact fracture toughness of hollow glass bead-filled polypropylene composites

  • Ji-Zhao LiangEmail author


The notched Izod impact properties of polypropylene (PP) filled with hollow glass beads (HGB) have been measured at room temperature to identify the effects of the particle contents, size and its distribution on them in the present paper. The mean diameters of the particles were 11, 35, and 70 μm, and named TK10, TK35 and TK70 respectively. The surface of the particles was pretreated with silane coupling agent. The results showed that the notched Izod impact strength (σI) of the filled systems increased gently with increasing the volume fraction (φf) of the fillers when φf was less than 15%, and then it decreased. When φf was 10%, σI decreased with an increase of the mean diameter of the particles. Furthermore, the impact fracture surface of the specimens was observed by using a scanning electron microscope (SEM). The improvement of the impact toughness of the composites might be mainly attributed to the shear yielding first of the matrix around the beads to absorb relevant deformation energy under impact load.


Impact Strength Filler Particle Silane Coupling Agent Scanning Electron Microscope Picture Impact Fracture 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



The author would like to thank Mr. F.H. Li from our College for his help in the experiments


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Copyright information

© Springer Science+Business Media, LLC 2006

Authors and Affiliations

  1. 1.College of Industrial Equipment and Control EngineeringSouth China University of TechnologyGuangzhouP.R. China

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