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Biocomposites based on poly(butylene succinate) and curaua: Mechanical and morphological properties

Publication date: August 2015
Source:Polymer Testing, Volume 45

Author(s): Elisabete Frollini , Nadia Bartolucci , Laura Sisti , Annamaria Celli

Biocomposites based on poly(butylene succinate) (PBS) and curaua fibers have been produced by compression molding, and investigated as a function of fiber length and amount. Mechanical tests, water uptake and morphology studies were carried out in order to assess the composite features according to the characteristics of the reinforcing agents. It turns out that the impact and flexural strengths increase with fiber content. Moreover, the fiber length, varying from 1 to 4†cm for the composite reinforced with 20†wt% of fiber, influences impact strength, which is higher for shorter than for longer fibers. However, flexural strength is not greatly influenced by the length of the fibers. Water uptake studies reveal a higher sensitivity of the material to fiber content rather than fiber size. Biocomposites, which are characterized by enhanced mechanical properties as compared to PBS, can have different applications, for example in rigid packaging or interior car parts.

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This project has received funding from the European Unionís Seventh Framework Programme for research, technological development and demonstration