UNIQUE SERIES AKTU Syllabus
BCT602

Structural Properties of Fibres

L-T-P3-1-0 Credits4 Session2024-25 TypeTheory
Appears in 1 semester

B.Tech Carpet & Textile Technology · Sem 6 (Core)

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Syllabus

5 units · 40 lecture hours
Unit1

Unit 1

8 hrs

Amorphous and crystalline phases, molecular chain length, Glass Transition, Plasticization, Crystallization, Melting, factors affecting Tg & Tm, Role of molecular entanglement on fibre formation.

Unit2

Unit 2

8 hrs

Differential heat of sorption, integral heat of sorption, Moisture absorption, effect of hydrophilic groups, moisture absorption in crystalline and non crystalline region, directly and indirectly attached water, creasing behaviour in textiles.

Unit3

Unit 3

8 hrs

Basic definitions related to mechanical properties of textiles (tenacity elongation, modulus, work of rupture, Elastic recovery), Explanation of load-elongation and stress-strain curves related to textile fires, Relation between structure and mechanical properties of fibres, time effects (Primary and secondary creep).

Unit4

Unit 4

8 hrs

Thermal behaviour of textile fibres by DSC, TGA, Thermal Mechanical Analysis, Density Gradient Column, Preparation of density gradient column.

Unit5

Unit 5

8 hrs

Optical properties of fibres, Birefringence behaviour, dielectric properties, fibre friction, fibre friction measurement and static charge measurement.

Course Objectives1 points
  • To learn the importance of morphological structure on various electrical, optical, frictional and mechanical properties and moisture absorption behaviour of textile materials. Also, to get an understanding of the concept of various thermal transitions occurring in fibres at molecular level and their characterization techniques.
Course Outcomes (COs)5 outcomes

After completion of the course student will be able to:

  1. CO1Understand the importance of crystalline region, amorphous region, molecular chain entanglements etc. with respect to the morphological development of textile fibres.
  2. CO2Judge the role of morphological structure in moisture absorption behaviour of textile materials.
  3. CO3Appreciate the importance of morphological structure in development of mechanical properties in textile materials.
  4. CO4Understand the principles involved in characterization of various electrical, optical and frictional properties of fibres.
  5. CO5Explain the working principle of various sophisticated testing instruments such as DSC, TGA, DGC, DMA etc. Page 20 of 30

References

  1. Manufactured fibre technology by V.B. Gupta, V.K. Kothari
  2. Physical properties of fibre by J.W.S. Hearle
  3. Textile fibres by ATIRA
  4. Principles of Textile Testing by J. E. Booth
  5. Physical Testing of Textiles by Saville

Official AKTU syllabus

This subject is on page 19, 20 of the original AKTU PDF.

Official AKTU syllabus PDF ↗