Carbon Microparticles from Organosolv Lignin as Filler for Conducting Poly(Lactic Acid)

Carbon microparticles were produced from organosolv lignin at 2000 °C under argon atmosphere following oxidative thermostabilisation at 250 °C. Scanning electron microscopy, X-ray diffraction, small-angle X-ray scattering, and electro-conductivity measurements revealed that the obtained particles we...

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Detalles Bibliográficos
Autores principales: Köhnke, Janea, Fürst, Christian, Unterweger, Christoph, Rennhofer, Harald, Lichtenegger, Helga C., Keckes, Jozef, Emsenhuber, Gerhard, Mahendran, Arunjunai raj, Liebner, Falk, Gindl-Altmutter, Wolfgang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2016
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6432080/
https://www.ncbi.nlm.nih.gov/pubmed/30979301
http://dx.doi.org/10.3390/polym8060205
Descripción
Sumario:Carbon microparticles were produced from organosolv lignin at 2000 °C under argon atmosphere following oxidative thermostabilisation at 250 °C. Scanning electron microscopy, X-ray diffraction, small-angle X-ray scattering, and electro-conductivity measurements revealed that the obtained particles were electrically conductive and were composed of large graphitic domains. Poly(lactic acid) filled with various amounts of lignin-derived microparticles showed higher tensile stiffness increasing with particle load, whereas strength and extensibility decreased. Electric conductivity was measured at filler loads equal to and greater than 25% w/w.

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