The application of NanoBent®Zr2 as filler for modification of composites containing glass reinforced polyester waste
Mariola Jastrzębska
Quarterly No. 3, 2012 pages 151-154
DOI:
keywords: material recycling, nanofiller, NanoBent®, glass reinforced polyester waste
abstract In this study, organically treated montmorillonite was used as a filler for composites containing glass reinforced polyester waste. The composites were prepared by in-situ polyester polymerization when the organoclay was added to the reaction medium simultaneously with the monomers. The influence of the amount of nanofiller on the selected properties of composites with waste has been tested. In this work, composites composed of polyester resin Polimal 109-32K (product of Organika-Sarzyna) and nanofiller NanoBent®ZR2 - organophilized montmorillonite (product of ZG-M “Zębiec” S.A.) have been obtained. The filler was introduced to the compositions in the amounts of 1, 2, 3 wt.% of all the components. The influence of the nanofiller on the density of the composites as well as on the compressive strengths and the flexural strengths of the polyester composites with a glass reinforced polyester recyclate was examined. There were presented the relationship between water absorption and soaking time for composites with different nanofiller contents. It was observed that an addition of 2 wt.% nanofiller NanoBent®ZR2 to composites with 10 or 12 wt.% of recyclate causes an increase in the density and the strength. Styrene diffuses into the galleries of the organoclay montmorillonite easily, resulting in a decrease in the amount of styrene available for crosslinking in the medium, which decreases the chain length between the crosslink sites leading to higher strength. It was found that the composites with NanoBent®ZR2 absorb less moisture than the unfilled ones.