Xihua Hu, M.Sc.



Lignins derived from agricultural wastes using the second-generation biorefinery process are of great interest to the polymer industry, due to its sustainable nature and its added functionalities, such as antioxidant capacities. However, the heterogeneous structure of the isolated macromolecule lignin is not intrinsically compatible with all polymers. This work focuses on the investigation of polymer compatibility, targeted modification of lignin and the compounding process of the composites.


Stimuli-responsive hydrogels are widely known in the field of intelligent materials for diverse applications. By exceeding a substrate-specific transition zone, the solubility of the gel inside a certain medium is significantly changed, causing the gel to reversibly swell or collapse. This swelling behavior can be used for different purposes, if integrated into defined geometries. The goal is to conceptualize reactor setups, where the smart gels provide self-regulating features, which, in an ideal case, can substitute the process monitoring and control inside a smart reactor.






Posters and presentations

  • X. Hu, C. Spille, M. Schlüter, I. Smirnova
    Smart Structures: Additive Manufacturing of Smart Materials for Adaptive Packings
    ProcessNet-Fachgruppe Fluidverfahrenstechnik, Berchtesdagen, Germany, 2020

  • X. Hu, I. Smirnova
    Lignin aus Bioraffinerien basierend auf der Heißwasserhydrolyse und deren Nutzung in Polymercompounds (talk)
    ProcessNet Jahrestagung, Aachen, Germany, 2018

  • X. Hu, J. Karnetzke, M. Fassbender, S. Drücker, B. Fiedler, G. Luinstra, I. Smirnova
    Intelligente Reaktoren: Kombination von Stimuli-Responsiven Hydrogele und 3D-Druck (poster)
    ProcessNet Jahrestagung, Aachen, Germany, 2018

  • X. Hu, I. Smirnova
    Enzymatic Modification of Lignin from a Hydrothermal Biorefinery Concept and Use Thereof in Polymer Compounds (talk)
    Nordic Wood Biorefinery Conference, Helsinki, Finland, 2018

  • A. Kazan, X. Hu, I. Smirnova, O. Yesil-Celiktas
    Hydrolysis of ginsenoside Rb1: Comparison of conventional methods and immobilized enzyme microreactor (poster)
    Lab-on-a-chip & Microfluidics, München, Germany, 2017

  • R. Heils, X. Hu, A. Liese, I. Smirnova
    Biokatalytische Reaktivrektifikation: In-situ-Beschichtung von strukturierten Packungen mit biokatalytischen Überzügen (talk)
    ProcessNet Jahrestreffen der Fachgruppe Fluidverfahrenstechnik, Bremen, 2015