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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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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. 1. 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. 2. 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. 3. DC Electric Spinning. Brief history of the field. Basic design of spinning. Productivity and process productivity. Types of DC high voltage sources. 4. Special collectors and modification of the production process. Available spinning techniques and machinery. Technological pitfalls of the process. 5. 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. 6. Called lecture. Physical foundations of electrical spinning. Theoretical basis. 7. Technological implementation of orientation of nanofibres, bicomponent and coaxial nanofibres. Special collectors, coaxial spinning. Essence and technical design of spinners. 8. Use of electrically spinning nanofibers. Examples of use and modification of the spinning process. 9. Production of polymeric nanofibers with the exception of electrical spinning. List and technical implementation of individual methods. Usability of nanofibers so produced. 10. Called lecture. Use of nanofibers in tissue engineering and drug delivery systems. 11. Called lecture. Carbon nanotubes, their distribution and structure. Methods of production and laboratory preparation of carbon nanotubes. Technical use of carbon nanotubes in composite materials such as AFM microscope probes, etc. 12. Composite nanomaterials. Composites reinforced with nanofibrous materials. Increase resistance to delamination. Practical examples of composites and their use. 13. Risks of nanomaterials. Influence of the distribution of the dimensions of industrially produced nanomaterials on living organisms. Some known cases of life-threatening nanomaterials. Precautionary principle. 14. Short nanofibers - their production and application. Practical excercises: In the exercises the students are directly acquainted with the theoretical and technical essence of individual lectured production methods. In the final exercise, students build the spinning equipment currently under examination at KNT and produce a certain amount of defined material. 14. Short nanofibers - their production and application. Practical excercises: In the exercises the students are directly acquainted with the theoretical and technical essence of individual lectured production methods. In the final exercise, students build the spinning equipment currently under examination at KNT and produce a certain amount of defined material. Practical excercises: In the exercises the students are directly acquainted with the theoretical and technical essence of individual lectured production methods. In the final exercise, students build the spinning equipment currently under examination at KNT and produce a certain amount of defined material.
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Learning activities and teaching methods
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Monological explanation (lecture, presentation,briefing), Self-study (text study, reading, problematic tasks, practical tasks, experiments, research, written assignments), Laboratory work, E-learning
- Class attendance
- 56 hours per semester
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Learning outcomes
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Problems of production, classification, testing, and application of nanomaterials. Production technologies and special techniques of testing materials composed of nanoparticles.
The student will be acquired with problems of production, classification, testing, and application of nanomaterials. A part of the topics is production technologies and special techniques of testing materials composed of nanoparticles that are often very different from the classical techniques.
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Prerequisites
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unspecified
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Assessment methods and criteria
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Combined examination
Requirements for getting a credit are activity at the practicals /seminars and successful passing the tests. Examination is of the written and oral forms.
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Recommended literature
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Ramakrishna, S., et al. An Introduction to Electrospinning and Nanofibers, World Scientific.
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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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Z. Weiss, G. Simha-Martynková, O. Šustai. Nanostruktura uhlíkatých materiálů. Repronis Ostrava, 2005, ISBN80-7329-083-9,138s.
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