Related Experiment Video
Updated: Jan 26, 2026

A Facile and Eco-friendly Route to Fabricate PolyLactic Acid Scaffolds with Graded Pore Size
Published on: October 17, 2016
Carbon Microparticles from Organosolv Lignin as Filler for Conducting Poly(Lactic Acid)
Janea Köhnke1, Christian Fürst2, Christoph Unterweger3
1BOKU-University of Natural Resources and Life Science Vienna, Konrad Lorenz Strasse 24, A-3430 Tulln, Austria. janea.koehnke@boku.ac.at.
Abstract:
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.
Related Concept Videos
Bicarbonate-Carbonic Acid Buffer
Additives and Fillers in Concrete
The...
The Carbon Cycle
Carbon Skeletons
Conduct Disorder
Conduction System of the Heart
The pacemaker cells are located in two primary nodes: the sinoatrial (SA) node and the atrioventricular (AV) node. The SA node pacemaker cells can autonomously depolarize, triggering an action potential that leads to the...

