Preparation and characterization of poly(hydroxybutyrate) and hollow glass microspheres composite films: morphological, thermal, and mechanical properties
作者： Luis Miguel Araque , Ana Carolina Lemos de Morais , Tatianny Soares Alves , Joyce Batista Azevedo , Laura Hecker Carvalho
DOI: 10.1016/J.JMRT.2018.07.005
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摘要: Abstract In this work, of poly(hydroxybutyrate) (PHB) and glass microspheres (HGM) in different compositions with polypropylene-grafted-maleic anhydride (PP-g-MA) composites were developed by melt intercalation, then, films from the polymer matrix obtained. Subsequently, morphological, thermal, mechanical properties evaluated. A good distribution intermediate dispersion filler throughout formation some agglomerates was observed, while adhesion between components not achieved. The HGM did affect significantly thermal systems; there discrete variations initial degradation temperature (Tonset), peak (Tp), melting (Tm). However, degree crystallinity decreased addition HGM, film 3% had a variation above 11%. Additionally, it noticed that (regardless presence PP-g-MA) presented small values elongation ultimate stress compared those pure PHB.
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