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Lecturer(s)
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Tomková Blanka, Ing. Ph.D.
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Nováková Jitka, Ing.
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Course content
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Lectures: 1. Importance of special fibers in industrial applications, development and characterization of special fibers 2. Structure and properties of special fibers I. 3. Structure and properties of special fibers II. 4. High-performance fibers 5. Special polymer fibers I. 6. Special polymer fibers II. 7. Inorganic special fibers 8. High function fibers I. 9. High function fibers II. 10. Fiber for biomedical applications 11. Biodegradable Fiber I. 12. Biodegradable Fiber II. Exercises: 1. Safety regulations, introduction to the subject 2. Repetition of basic terms (geometry, fiber fineness) 3. Crystallinity, density of fibers - chemical calculations 4. Special fiber microscopy (longitudinal views and cross sections) 5. I. Credit work 6. Laboratory work - multifilfil analysis 7. Laboratory work - determination of density of fibers using a pycnometer 8. Laboratory work - specific strength and strain of special fibers 9. Laboratory work - calculation of specific surface and fineness from fiber cross section 10. Laboratory work - fracture analysis using electron scanning microscopy 11. II. Credit work 12. Refunds, repairs of I. credit work 13. Refunds, repairs of II. credit work 14. Credit
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Learning activities and teaching methods
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Laboratory work, Lecture
- Class attendance
- 56 hours per semester
- Preparation for laboratory testing; outcome analysis
- 40 hours per semester
- Preparation for formative assessments
- 20 hours per semester
- Preparation for exam
- 35 hours per semester
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Learning outcomes
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The course Special Fibers aims to improve students' knowledge in the field of modern fibrous materials made especially for technical applications, and it follows the basic course Textile Fibers. It focuses on the most important materials in the category of high performance fibers (high strength, high modulus, chemical and thermal resistance) and in the category of high-functional fibers, which can improve e.g. thermal insulating properties, superabsorbency, electrical or thermal conductivity etc. Basic characteristics of the fibers in both of these categories will be described. The mechanical, physico-chemical and special utility properties of these fibers will be presented. Special production methods will be shown and their link to the fiber structure will be explained.
Theoretical and practical knowledge dealing with content of lectures and excercises
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Prerequisites
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Any one
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Assessment methods and criteria
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Written exam
Credit: participation in all laboratory courses, two successfully passed tests. Exam: written
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Recommended literature
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Hearle J.W.S. High performance fibres. Woodhead Publl. Cambridge, 2001.
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Hongu, T., Phillips, G.O., Takigami, M. New Millenium Fibers. Woodhead Publishing Limited, Cambridge, 2005.
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Militký, J. Textilní vlákna klasická a speciální, skripta TUL. Liberec: Technická univerzita v Liberci, 2005. ISBN 807083644X.
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