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Preface
(Wydawnictwo Politechniki Łódzkiej, 2025) Tokarska, Magdalena; Barburski, Marcin
Characteristic of Surface Geometry of the Seersucker Woven Fabrics
(Wydawnictwo Politechniki Łódzkiej, 2025) Matusiak, Małgorzata
The seersucker woven fabrics are three-dimensional fabrics characterised by a presence of the puckered strips, mostly in the warp direction. The seersucker effect, associated with the specific shape of the fabric surface, affects the surface properties of fabrics, especially the geometric structure of their surface. In the presented work the surface geometry of two variants of the seersucker woven fabrics were measured using the non-contact – optical method by means of the MicroSpy® Profile profilometer co-operating with the specialist Mark III software. On the basis of data from the profilometer the parameters and functions characterising the geometric structure of fabrics’ surface were determined and analysed for the entire surface of fabric samples as well as separately for the puckered and flat areas of the fabrics. Obtained results showed that the non-contact optical method using the profilometer provides data which allow for comprehensive characterization of surface geometry of the seersucker effect. Additionally, by comparison of the surface geometry parameters for the puckered and flat areas of the seersucker woven fabrics it is possible to quantify the seersucker effect.
A Methodological Approach to the use of Natural Fiber Reinforcements in Sporting Goods
(Wydawnictwo Politechniki Łódzkiej, 2025) Ranz, David; Miralbes, Ramon; Abad, Javier; Pina, Carmelo; Cuartero, Jesús; Barburski, Marcin
In the field of sports, the use of natural composites, such as flax and hemp, is practically non-existent. In addition to the well-known advantages provide by composites, these natural composites have better vibration damping than glass or carbon composites which is very important in most sporting activities. Unlike carbon fiber composites, natural fiber composites have a ductile fracture behaviour without sharp fibers which improves safety compared to carbon fiber composites. However, although the future of these materials looks promising, it seems difficult to believe that any user would be willing to sacrifice technical performance or safety for a more sustainable product. Therefore, a number of uncertainties need to be overcome before natural composites can be introduced into the design of sports equipment. Overcoming these uncertainties requires an in-depth knowledge of these material systems, in which the mechanical properties and behaviour
are highly dependent on the manufacturing processes. This knowledge can be achieved through the complete characterisation of the material, especially in many aspects of its behaviour in which there is not yet adequate information to be able to design components with high structural requirements. In this study, a methodology was developed to cope with the design and development of sport components with structural and vibration absorption requirements, such as a bicycle handlebar and a paddle racket. The process begins with the selection and subsequent characterisation of sustainable material systems. For this purpose, the mechanical properties and the damping factor of the material were analysed, taking into account the orientation of the reinforcement fibers. The experimental results are used in the development, simulating by means of finite elements the structural and vibrational behaviour. Once this behaviour has been optimised, prototypes are manufactured using both composite materials with natural reinforcements, in this case flax. The prototypes are tested to validate the behaviour at component level and the necessary improvements are proposed to comply with all the requirements that must be met by each type of product. The mechanical performance and carbon footprint is compared to the conventional counterpart solution.
Textile Futures: Engineering Advanced Materials for a Changing World
(Wydawnictwo Politechniki Łódzkiej, 2025) Tokarska, Magdalena (Ed.); Barburski, Marcin (Ed.); Tarbuk, Anita (Rev.); Milašius, Rimvydas (Rev.)
This book provides a comprehensive overview of the latest trends and
advancements in textile materials engineering. It explores the cutting-edge trends and challenges shaping the future of this dynamic industry, offering a wide-ranging overview that encompasses sustainable production methods and advanced technologies for creating materials with unique properties.(...)
III Konferencja Studencka „ALE! – Chemia”: Łódź, 3 czerwca 2025 r. Książka abstraktów
(Wydawnictwo Politechniki Łódzkiej, 2025) Kuśmierek, Elżbieta (Red.); Chrześcijańska, Ewa (Red.)
W dniu 3 czerwca 2025, w godzinach 9.00 – 14.00 odbędzie się IV Dzień Otwarty Wydziału Chemicznego Politechniki Łódzkiej. W ramach IV Dnia Otwartego będzie miała miejsce III Studencka Konferencja Naukowa ALE!-CHEMIA. W trakcie Konferencji zostaną zaprezentowane w formie posterów główne kierunki badań i nowoczesne techniki badawcze stosowane na Wydziale. W sesji posterowej mogą wziąć udział studenci studiów I i II stopnia nie będący studentami semestru dyplomowego. Studenci przedstawiają oryginalne wyniki swoich badań, wykonane w ramach np. wolontariatów naukowych (WNS), staży i praktyk w instytucjach spoza uczelni oraz prac realizowanych w Studenckich Kołach Naukowych (SKN). Na autorów najlepszych prac czekają nagrody Dziekana Wydziału Chemicznego i sponsorów.