10.6084/m9.figshare.5671486.v1
Caroline Barbosa da Silva
Caroline Barbosa da
Silva
Andrea Bercini Martins
Andrea Bercini
Martins
André Luis Catto
André Luis
Catto
Ruth Marlene Campomanes Santana
Ruth Marlene Campomanes
Santana
Effect of natural ageing on the properties of recycled polypropylene/ethylene vinyl acetate/wood flour composites
SciELO journals
2017
Wood plastic composite
recycled PP
recycled EVA
natural ageing
2017-12-05 16:02:12
Dataset
https://scielo.figshare.com/articles/dataset/Effect_of_natural_ageing_on_the_properties_of_recycled_polypropylene_ethylene_vinyl_acetate_wood_flour_composites/5671486
<div><p>ABSTRACT Wood flour composites main applications are represented by outdoor furnishing. Therefore, it is important to evaluate their behavior under natural ageing conditions. This work aims to investigate the natural ageing impact on the mechanical, physical, thermal e morphological properties of recycled polypropylene/ethylene vinyl acetate/wood flour composites (PP/EVA/ITA). Samples were exposed to natural ageing for 12 months in Porto Alegre (BR). Mezilaurus itauba (ITA) wood flour was used at 30 % w/w. Results showed that PP filled wood flour retained a higher fraction of the original mechanical properties after natural ageing. Crystallinity degree for composites increased from 30.9 up to 37.5% Climatic conditions affected the colorimetric and morphological characteristics of composites, indicating that there was not only photo-degradation but also thermo-oxidative and hydrolytic degradation. In this way, the use of antioxidant additives and UV photo-absorbers is recommended to avoid stress-cracking, discoloration and loss the mechanical properties.</p></div>