COURSE UNIT TITLE

: FIBER DEGRADATION AND ASSESSMENT METHODS

DEGREE PROGRAMMES

Description of Individual Course Units

Course Unit Code Course Unit Title Type Of Course D U L ECTS
TKS 5015 FIBER DEGRADATION AND ASSESSMENT METHODS ELECTIVE 2 2 0 8

Offered By

Graduate School of Natural and Applied Sciences

Level of Course Unit

Second Cycle Programmes (Master's Degree)

Course Coordinator

PROFESSOR AYSUN AKŞIT

Offered to

Textile Engineering
M.Sc. Textile Engineering

Course Objective

The course aims to provide knowledge about determination of degradation of textile materials because of the molecular structure, process conditions, storing and usage and quantitative methods of assessing degradation. This course also aims to determine the damages in the process conditions in any steps of the production from fiber to garment.

Learning Outcomes of the Course Unit

1   To be able to define the degradation of fibers and to understand the mechanism of their formation.
2   To be able to determine the factors causing degradation of fibers in the production and usage of textile material.
3   To be able to perform the characterization of fiber degradations.
4   To be able to inquiry the reason of the degradation in textile material.
5   To be able to suggest the solutions to prevent the degradation.

Mode of Delivery

Face -to- Face

Prerequisites and Co-requisites

None

Recomended Optional Programme Components

None

Course Contents

Week Subject Description
1 Definition of degradation The causing factors of degradation -The molecular structure of fibers -The process conditions in the time of fabric production -The storing conditions -The effects in the time of usage (mechanical, UV, radiation, environmental conditions )
2 Degradation mechanisms -Mechanical degradation -Photo degradation -Thermal degradation
3 Chemical degradation -Acidic, -Basic, -Hydrolytic, -Reduction and oxidation agents -Microbiological degradation
4 The effects of degradation -Mechanical and structural changes, -Morphology, visco- elasticity, degree of polymerization, -Oxidation, weight loss, thermal curves, -Chemical effects
5 Methods of assessing degradation -Changes in mechanical properties -Chemical analysis -Thermal analysis
6 Instrumental methods -UV spectroscopy -IR spectroscopy -Gas chromatography
7 Gel permeability chromatography -Optical and electron microscopy -X-ray and electron diffraction
8 Midterm exam
9 The reduction of degradation -Mechanical protection -Methods -Development of usage conditions -Coating -Surface changes -Protection by using inorganic metal salts -Graft polymerization -Dying and finishing processes -Organic chemicals
10 The uses of degradation -The formation of new compounds -The analytic usage of degradation
11 Easier processing with structural changes because of degradation, achievement of aesthetic features and reusable property.
12 The factors causing damages and degradation in textile finishing mills Damages in pre-finishing, dying and printing, finishing processes
13 The factors causing damages and degradation in textile finishing mills Investigating the damages in pre-finishing, dying and printing, finishing processes
14 Class presentation

Recomended or Required Reading

Textile Degradation Textile Progress, Volume 21, No:1/2, PW Harrison, 1991.
Chemical Processing of Fibers and Fabric, Functional Finishes, Part A., M.Lewin, S.Sello, 1983.
Tekstil Laboratuvarı için Analitik Metodlar, Inci OKUN, SAGEM Yayınları
Chemistry of Textile INDUSTRY carr, C.(ed), 1995
Quality Assesment of Textiles, 1993, Mahall, K.

Planned Learning Activities and Teaching Methods

This course includes theoretical lessons and laboratory practices. Laboratory practices include the determination of the mechanical or chemical degradation of textile materials, degrading the textile material in different chemical, mechanical and UV conditions and to characterize the degradation of the fibers.

Assessment Methods

SORTING NUMBER SHORT CODE LONG CODE FORMULA
1 MTE MIDTERM EXAM
2 PRJ PROJECT
3 FIN FINAL EXAM
4 FCG FINAL COURSE GRADE MTE * 0.35 + PRJ * 0.15 + FIN * 0.50
5 RST RESIT
6 FCGR FINAL COURSE GRADE (RESIT) MTE * 0.35 + PRJ * 0.15 + RST * 0.50


Further Notes About Assessment Methods

None

Assessment Criteria

Student performance is evaluated with exams, performance in laboratory practices and homework success.

Language of Instruction

Turkish

Course Policies and Rules

To find a textile material degraded in the time of usage or production and to opine.

Contact Details for the Lecturer(s)

Doç.Dr.Aysun AKŞIT
Dokuz Eylül University
Textile Engineering Department
Phone: 02323017732
e-mail:aysun.cireli@deu.edu.tr

Office Hours

Monday: 13.00-15.00
Tuesday: 13.00-15.00

Work Placement(s)

None

Workload Calculation

Activities Number Time (hours) Total Work Load (hours)
Lectures 14 2 28
Practice 14 2 28
Preparations before weekly lectures 14 2 28
Preparations for midterm exam 1 12 12
Preparations for final exam 1 22 22
Midterm project 1 20 20
Class presentation and preparation for report 1 15 15
Preparations for weekly laboratory practices and reports 14 3 42
Midterm exam 1 2 2
Final exam 1 2 2
TOTAL WORKLOAD (hours) 199

Contribution of Learning Outcomes to Programme Outcomes

PO/LOPO.1PO.2PO.3PO.4PO.5PO.6PO.7PO.8PO.9PO.10
LO.15544434535
LO.25555534535
LO.33444534535
LO.45544534535
LO.53344554435

CONTACT INFORMATION
Dokuz Eylül Üniversitesi Cumhuriyet Bulvarı No: 144 35210 Alsancak / İZMİR
Phone: +90(232) 412 12 12 - Fax: +90 (232) 464 81 35

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