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Journal Articles Bioresources Year : 2015

Upcycling Sunflower Stems as Natural Fibers for Biocomposite Applications

Arnaud Alzina
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Michel Grédiac
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Philippe Michaud
Hélène de Baynast
Cédric Delattre
Narimane Mati-Baouche
Fabienne Pennec
Shengnan Sun
  • Function : Author
Evelyne Toussaint


One of the big global, environmental, and socioeconomic challenges of today is to make a transition from fossil fuels to biomass as a sustainable supply of renewable raw materials for industry. Growing public awareness of the negative environmental effects of petrochemical-based products adds to the need for alternative production chains, especially in materials science. One option lies in the value-added upcycling of agricultural by-products, which are increasingly being used for biocomposite materials in transport and building sector applications. Here, sunflower by-product (obtained by grinding the stems) is considered as a source of natural fibers for engineered biocomposite material. Recent results are shown for the main mechanical properties of sunflower-based biocomposites and the socioeconomic impact of their use. This paper demonstrates that sunflower stem makes a good candidate feedstock for material applications. This is due not only to its physical and chemical properties, but also to its socioeconomic and environmental rationales.


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Dates and versions

hal-01658069 , version 1 (08-12-2017)



Jean-Denis Mathias, Arnaud Alzina, Michel Grédiac, Philippe Michaud, Philippe Roux, et al.. Upcycling Sunflower Stems as Natural Fibers for Biocomposite Applications. Bioresources, 2015, 10 (4), pp.8076-8088. ⟨hal-01658069⟩
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