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Lecturer(s)
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Pokorný Pavel, doc. Ing. Ph.D.
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Kalous Tomáš, Ing. Ph.D.
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Course content
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- Introduction to nanotechnology in general with a focus on nanofibrous materials. Division of nanotechnologies and content of lectures. The occurrence of nanomaterials in nature, the principle of minimal material and energy consumption in the formation of nanomaterials. - Introduction to electrical spinning. Energy conditions during spinning. Monitoring process changes by measuring the current flowing through the spinner. Parameters of spinning space, generation of electric wind and its effect. DC Electric Spinning. Brief history of the field. Basic design of spinning. Productivity and process productivity. Types of DC voltage sources. Special collectors and modification of the production process. Available spinning techniques and machinery. Technological pitfalls of the process. Alternating electric spinning. Substance and differences versus DC spinning. Available spinning processes and machinery. Productivity and process productivity. Impact of spinning environment, electric wind. Types of alternating high voltage sources. Technological implementation of orientation of nanofibres, bicomponent and coaxial nanofibres. Special collectors, coaxial spinning. Essence and technical design of spinners. - Selected chapters from Physical principles of electrostatic spinning. - Production of polymeric nanofibers with the exception of electric spinning. List and technical implementation of individual methods. Usability of nanofibers so produced. - Production of polymeric nanofibers with the exception of electrical spinning. List and technical implementation of individual methods. Usability of nanofibers so produced. - Composite nanomaterials. Composites reinforced with nanofibrous materials. Increase resistance to delamination. Practical examples of composites and their use.
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Learning activities and teaching methods
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Lecture, Practicum, E-learning
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Learning outcomes
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The technological subject deals with deepening knowledge of fiber nanomaterials in terms of their production, distribution, testing and application. An important element is the technology of production of individual nanofibrous materials. Further, students are acquainted with the details of the spinning procedures and the theoretical essence of the studied phenomena. Students are encouraged to use the knowledge they have acquired in a creative way. Students are presented with special procedures for testing materials composed of nanofibers, which are often very different from traditional techniques.
The student will acquire detailed knowledge of the subject in the area according to the approval of the Branch Board
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Prerequisites
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unspecified
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Assessment methods and criteria
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Combined examination
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Recommended literature
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LUKÁŠ, D., SARKAR, A., MARTINOVÁ, L., et al. Physical Principles of Electrospinning. Textile Progres. 41(2), 59-140, 2009. ISBN 9780415558235.
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RAMAKRISHNA S. et al. An Introduction to Electrospinning and Nanofibers. Singapore: World Scientific Publishing Co. Pte. Ltd., 2005. ISBN 981-256-415-5.
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RENEKER, D.H., YARIN A.L. Electrospinning Jets and Polymer Nanofibres. Polymer. 49(10), 2387-2425, 2008.
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TONG L., XUNGAI W. Needleless Electrospinning of Nanofibers,Technology and Applications, Taylor & Francis Group, LLC, 2013, ISBN 978-981-4316-84-2. Oxfordshire: Taylor & Francis Group, 2013. ISBN 978-981-4316-84-2.
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