Effects of surface modification of talc on mechanical properties of polypropylene/talc composites

Keyan Liu, Wolfgang Stadlbauer, Gernot Zitzenbacher, Christoph Burgstaller, Christian Paulik

Research output: Chapter in Book/Report/Conference proceedingsConference contributionpeer-review

5 Citations (Scopus)


Low compatibility of polymer matrix and dispersed filler negatively affects the performance of polymeric composites. In order to improve the adhesion between the components in a compound the polymer matrix or/and the filler particles should be modified with a compatibilizer or/and a coupling agent. An overview of our current research on the effect of the addition of silane treated and untreated talc powders on the mechanical properties of polypropylene/talc composites is presented in this paper. Different silane coupling agents (3-aminopropyltriethoxysilane, 3-glycidoxypropyltrimethoxysilane and 3-methacryloxypropyltrimethoxysilane) were used to improve the adhesion at the surface of talc powders. Maleic anhydride grafted polypropylene was utilized to increase the adhesion between the polypropylene matrix and talc powders. The content of maleic anhydride grafted polypropylene (MA-g-PP) was varied between 1 and 5 wt% in polypropylene/talc composites. The surface modification of talc powders has a significant effect on the interfacial structure and the mechanical properties such as tensile strength and impact strength of polypropylene/talc composites. The experiments show that polypropylene grafted with maleic anhydride together with silane surface treatment exhibits the highest potential for improvements in this field.

Original languageEnglish
Title of host publicationProceedings of PPS 2015
Subtitle of host publicationThe 31st International Conference of the Polymer Processing Society - Conference Papers
EditorsByungohk Rhee
Number of pages5
ISBN (Electronic)9780735413603
Publication statusPublished - 9 Mar 2016

Publication series

NameAIP Conference Proceedings
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616


  • Compatibilization
  • Interface
  • Maleic anhydride grafted polypropylene (MA-g-PP)
  • PP/talc composite
  • Polypropylene (PP)
  • Silane coupling agent
  • Surface modification
  • Talc treatment


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