Berlin 2024 – wissenschaftliches Programm
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 21: Poster II
CPP 21.14: Poster
Dienstag, 19. März 2024, 18:00–20:00, Poster E
Integrated Simulation and Experimental Study on the UV Resistance and Crystallization of PA6/TiO2 Nanocomposites — •Hailong Yu1,2, Jens-Uwe Sommer2, Bin Sun1, and Meifang Zhu1 — 1State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, 201620, Shanghai, China — 2Leibniz-Institut für Polymerforschung Dresden, Hohe Strasse 6, 01069 Dresden, Germany
Addressing the heightened risk from increased UV radiation due to ozone depletion, our study developed PA6/TiO2 nanocomposite fibers with enhanced UV protection. We integrated surface-modified TiO2 nanoparticles into PA6 fibers using a masterbatch blending technique and performed extensive material characterizations. The study centered on the effects of TiO2, modified with agents 550 and 570, on PA6's crystallization. We observed a raised onset temperature and modified crystallinity, significantly influenced by agent 550's grafting effect on PA6's hydroxyl groups. Simulation studies provided further understanding of the structural changes impacting crystallization kinetics. A key achievement of this work is the fibers' exceptional UV resistance, demonstrated by a UPF surpassing 50, making them highly suitable for outdoor applications where robust UV protection is essential.
Keywords: UV Resistance Materials; PA6/TiO2 Crystallization; Molecular Dynamics Simulation