Structure & Properties of Fibers

Basic structural features of fibre, Structure of Cotton, wool, silk, and other textile fibres, relation between fibre structure and fibre, Methods of estimating molecular weight, orientation, crystallinity & crystalline orientation of fibre forming polymer, Overall orientation by sonic modulus tester.

Principle of microscopy , Microtomy , Preparation and mounting of specimen for longitudinal view and cross sectional view, Concept of scanning electron microscope (SEM), Concept of transmission electron ,microscope (TEM) , Fourier Transform Infrared Spectroscopy (FTIR), Atomic force microscopy .

gravimetric analysis (TGA), Thermo mechanical Analyser (TMA) Density gradient column, Preparation of density gradient column, Crystallinity by density gradient column.

Optical properties of fibres (2), Birefringence behaviour, dielectric properties, fibre Friction-fibre to fibre friction , fibre to metal friction , fibre friction measurement, Significance of fibre friction property , fibre fracture.

• Creep behaviour, concept of moisture absorption by fibres, Moisture absorption, heat of absorption, differential heat of absorption, integral heat of absorption, Quantitative theory of heat moisture absorption, Rate of moisture absorption. Application of heat and moisture absorption properties of fibre .
• Grand Total of lectures required = 36