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In a collaborative research project with Yıldız Technical University in Istanbul, Türkiye, kelteks contributed to the development of a new type of sustainable composite material designed for automotive interior components - specifically roof panel applications. The project aimed to explore innovative solutions that combine high performance with reduced environmental impact.

Viscose Fibers as a Sustainable Alternative

The study evaluated the use of cellulose-based viscose fibers as reinforcement in composite structures, offering a renewable and biodegradable alternative to conventional synthetic fibers like glass and carbon. The results demonstrated that viscose fibers can provide the necessary strength and energy absorption required for automotive applications, while significantly improving the overall sustainability profile of the material.

Key Results and Insights

The composite structures developed within the project showed strong potential for industrial use, particularly when combined with biodegradable matrices and selected functional fillers. Among the findings:

• The mechanical performance of the composites improved significantly when using surface-enhanced viscose fibers.
• In certain material combinations, the inclusion of secondary components contributed positively to strength and stability.
• The selected fiber–matrix systems proved promising in meeting both technical performance and environmental criteria relevant to the automotive sector.

Surface treatment of viscose fibers using silane-based chemicals (especially TMCS) led to up to a 30% improvement in tensile strength in PLA-based systems.
Scanning electron microscopy (SEM) and FTIR analyses confirmed strong interfacial bonding and effective chemical modification, crucial for long-term durability and mechanical stability.

A Step Toward Greener Mobility

This project represents an important step forward in Kelteks’ commitment to sustainability and innovation. By leveraging natural fibers and supporting academic research, we continue to explore new material solutions that align with the future demands of the mobility industry. Additional studies and applications in marine and construction sectors are already being considered.

Engineering Team;
Ms.Ayse Telligozoglu - LinkedIn
Ms.Betül Oncü - LinkedIn
Mr.Safa Sercan Guven

Professor:
Prof.Dr.Department of Metallurgical and Materials Engineering Ms.Figen Kaya - LinkedIn