Doctoral theses of the School of Chemical Engineering at Aaltodoc (external link)
Doctoral theses of the School of Chemical Engineering are available in the open access repository maintained by Aalto, Aaltodoc.
Public defence in Chemistry, MSc Zahra Madani
Public defence from the Aalto University School of Chemical Engineering, Department of Chemistry and Materials Science.
Title of the thesis: Functionalizing regenerated cellulose and bio-based polyamide textile fibers towards active environmental responsivenes
Thesis defender: Zahra Madani
Opponent: Prof. Minna Hakkarainen, KTH Royal Institute of Technology, Sweden
Custos: Prof. Jaana Vapaavuori., Aalto University School of Chemical Engineering
Functionalizing regenerated cellulose and bio-based polyamide textile fibers towards active environmental responsiveness
This research focuses on creating sustainable, functional textiles that not only minimize environmental impact but also enhance comfort, durability, and usability, thereby addressing global challenges such as resource depletion and textile waste.
The aim of the study was to synthesize bio-based polyamides with tailored functionalities and enhance man-made cellulosic fibers with targeted properties, merging sustainability with advanced material performance. Two complementary approaches were pursued. In the first, two bio-based, shape-changing polyamides were developed: one incorporating starch to increase bio-based content and enable heat-responsive shape-changing behaviour, and another utilizing a polypyrrole/graphene oxide composite to achieve light-responsive shape-changing behaviour. In the second approach, Ioncell® fibers, produced via an environmentally friendly cellulose process, were endowed with phase change materials for thermal regulation, octadecenyl succinic anhydride to impart hydrophobicity, and pectin to confer photothermal properties.
The results show that stimuli-responsive polyamides and multifunctional cellulosic fibers can be effectively engineered from sustainable materials and processes. The study demonstrates how bio-based polymers and eco-friendly fiber treatments can be combined to create smart textiles that are both environmentally responsible and functionally advanced. Overall, the research provides a blueprint for integrating sustainability and performance in textile manufacturing, reimagining traditional materials for next-generation sustainable and adaptive fibers.
Keywords: multifunctional textiles, polyamide filaments, man-made cellulosic fibers, polymer composites
Thesis available for public display 7 days prior to the defence at Aaltodoc.
Contact information:
zahraalsadat.madani@aalto.fi
https://www.aalto.fi/en/mmd
Doctoral theses of the School of Chemical Engineering
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