|
Lecturer(s)
|
-
Chvojka Jiří, doc. Ing. Ph.D.
|
|
Course content
|
1. The extent and importance of chemical and thermal production technology NT. Introduction, definitions. 2. The use of binders, the definition of their properties, technology influencing the structure of fiber layers. 3. Properties of suitable binders and the possibility to affect the structure, the final properties of textile products. 4. Technology wet laid process of comparison and dry laid process. Advantages of the production technology of fiber layers by a wet process. 5. Technology spunbond, the benefits of spun-bonded and melt-blown. 6. Unconventional Fiber Technology: flash-spun technology, electrospinning, centrifugal spinning, spinning coaxial. 7. dispersion, the definition and use of fiber layers for bonding, bonding more options foaming dispersions, pastes and polymer solutions. Advantages and disadvantages of these selected technologies. 8. Heat bonding fiber layers, the definition of bonded fiber layers calender and warm. 9. Bonding fiber layers with ultrasound, infrared heating and hot. Specification areal weight, speed and properties of final material. 10. Comparison structure of nonwoven articles, bonding sites formation and relationship to the final product characteristics. 11. Using traditional methods of reinforcing fiber layers felting and kicking. Definition of input raw materials and finished products. 12. Finished nonwovens and the fiber layers, the use of methods of coating, laminating, hot-melt. Advantages and disadvantages of using these technologies. 13. Definition of NT products, examples of products, their parameters, the possibility of influencing the final properties of materials. 14. Theory heating the fiber layers, physical definition of heat and thermal heating and thermal transmittance.
|
|
Learning activities and teaching methods
|
Monological explanation (lecture, presentation,briefing), Self-study (text study, reading, problematic tasks, practical tasks, experiments, research, written assignments), E-learning
- Home preparation for classes
- 5 hours per semester
- Practical training (number of hours)
- 56 hours per semester
- Fieldtrips
- 8 hours per semester
|
|
Learning outcomes
|
Students of the course Thermal and Chemical Technologies (TCTi) build on the knowledge acquired in core subjects focused on nonwoven textiles and their production, mechanical technologies, organic chemistry, and polymers. The aim of the course is to deepen and expand both theoretical and practical knowledge in the field of nonwoven textiles, with particular emphasis on the thermal and chemical processes involved in their manufacture. Teaching is delivered through lectures and practical classes. The lectures are designed as modern presentations supplemented by practical demonstrations, while the practical sessions seamlessly build on the theoretical background and include laboratory work, experimental activities on an individual project, and its final defense. Graduates of the course are able to design and optimize technological processes for the production of nonwoven textiles with regard to the required properties of the final product, apply theoretical knowledge in practice within companies engaged in nonwoven textile manufacturing, and present and defend the results of their work to a professional audience.
Students completing the course will be able to recognize non-woven fabric. It will be educated in bonding fibers and textiles. The knowledge will be used in průsmyslovém scale as a technologist or a professional quality.
|
|
Prerequisites
|
The knowledge of chemistry, polymer nonwovens, recycling and mechanical textiles. The course builds and expands its expertise in thermal and chemical bonding.
|
|
Assessment methods and criteria
|
Oral exam, Written exam, Student's performance analysis, Oral presentation of self-study
Knowledge: chemistry, polymers, nonwovens, recycling and mechanical textiles.
|
|
Recommended literature
|
-
Recycling in textiles. ISBN 978-1-85573-952-9.
-
Albrecht W., Fuchs H. Nonwovens fabrics. 2003. ISBN 3-527-30406-1.
-
Fakirov S. Handbook of thermoplastic polyesters. 2001. ISBN 3-527-30113-5.
-
INDA. Principles of Nonwovens. Cary.
-
Jirsak O. Wadsworth L.C. Nonwoven textiles. Carolina academy press.
-
Russell S. J. Handbook of nonwoven. Nort America CRC Press LLC. ISBN 978-1-85573-603-0.
-
Urban D., Takamura K. Polymer dispersions and their industrial applications. 2002. ISBN -527-30286-7.
|