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Lecturer(s)
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Venkataraman Mohanapriya, doc. M.Tech., M.F.Tech., Ph.D.
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Zusková Jana, Ing. Ph.D.
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Pechočiaková Miroslava, Ing. Ph.D.
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Tunáková Veronika, doc. Ing. Ph.D.
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Militký Jiří, prof. Ing. CSc.
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Course content
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1. Introduction, basic types of fibers 2. Molecular structure of fibers, measurements of viscosity 3. Supermolecular structure of fibers, models 4. Evaluation of supermolecular structure (orientation, crystallinity) 5. Geometric characteristics of fibers 6. Surface characteristics of fibers (roughness, friction) 7. Sorption characteristics of fibers I (sorption isotherms, sorption mechanisms, wicking) 8. Sorption characteristics of fibers II (wetting, dynamic processes) 9. Mechanical characteristics of fibers (fracture mechanisms) 10. Fibers viscoelasticity 11. Dynamic mechanical characteristics of fibers 12. Electrical characteristics of fibers 13. Thermal characteristics of fibers I (thermal conductivity, models) 14. Thermal characteristics of fibers II (thermal analysis) Laboratory works 1. Instruction with contents of laboratory works; assignment a theoretical works. 2.-3. Analysis of fibers cross section. 4.-5. Distribution of fibers tenacity. 6.-7. Stress relaxation. 8.-9. Dynamical-Mechanical experiments (frequency spectrum). 10.-11. Scanning electron microscopy. 12.-13. Electrics properties of materials. 14. Presentation of measured results, credit.
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Learning activities and teaching methods
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Laboratory work, Lecture
- Preparation for laboratory testing; outcome analysis
- 35 hours per semester
- Preparation for exam
- 35 hours per semester
- Graduate study programme term essay
- 20 hours per semester
- Home preparation for classes
- 35 hours per semester
- Class attendance
- 56 hours per semester
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Learning outcomes
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The course is focused on the study of molecular, supramolecular structure of polymers and methods of their evaluation. It also deals with the properties of fibers (thermal, surface, geometric, mechanical, sorption, electrical, etc.) with respect to their structure. The subject deals with rheological models of properties of polymers and fibers.
Theoretical and practical knowledge dealing with content of lectures and excercises
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Prerequisites
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Unspecified
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Assessment methods and criteria
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Written exam
Credit: participation in all laboratory courses + elaboration of semestral works Exam: written
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Recommended literature
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Košková, B. Struktura a vlastnosti vláken, Skriptum TUL, 1989.
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Meissner, B., Zilvar, V. Fyzika polymerů, SNTL/ALFA,. Praha, 1987.
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Militký, J. Textilní vlákna klasická a speciální. Skripta TUL, Liberec, 2002.
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Morton W.E., Hearle J.W.S. Physical Properties of Textile Fibres, Heineman, London 1993.
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