Your SlideShare is downloading. ×
Textile Fiber Analysis methods
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×

Saving this for later?

Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime - even offline.

Text the download link to your phone

Standard text messaging rates apply

Textile Fiber Analysis methods

4,182
views

Published on


0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total Views
4,182
On Slideshare
0
From Embeds
0
Number of Embeds
1
Actions
Shares
0
Downloads
151
Comments
0
Likes
0
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide

Transcript

  • 1. IDENTIFICATION OF FIBER STRUCTURE aravinprince@gmail.com By Aravin prince .P
  • 2. INTRODUCTION aravinprince@gmail.com Fiber physics is the study of the structure and physical properties of the fibers So fiber investigation methods and studying of fiber structure is very important to knowing about the fiber properties
  • 3. METHOD OF INVESTIGATION OF FIBER STRUCTURE  Absorption of IR radiation  X- Diffraction studies aravinprince@gmail.com  Optical microscopy  Electron microscopy  Thermal analysis  Density method  Nuclear magnetic resonance  Atomic force microscopy
  • 4. X-RAY DIFFRACTION X rays are electro magnetic waves. Range is between (1 to 2 Å i.e. 1*10 10) aravinprince@gmail.com It is a independent method to determine the amount of crystalline matter present in a fiber This idea is based on classical approach in which fibers are considered as a mixture of crystalline and amorphous matrix with each part producing a different type of X-Ray diffraction
  • 5.  When X-Ray beam is incident on a crystalline material, diffraction give rise to sharp rings or aravinprince@gmail.com peaks Where as non crystalline material produce broad diffuse scattering The diffraction efficiency of crystalline and non crystalline pattern are same
  • 6. ELECTRON MICROSCOPE Normal optical microscope we can find out up to 0.5Åresolution only , aravinprince@gmail.com By using of electron microscope we can able to find out up to 5Å, The rays from electron source are condensed on the specimen, Here only dry sample can be examined, Contrast in the image depends on the variation in scattering of the electrons by parts of the specimen of differing density.
  • 7. aravinprince@gmail.com Electron microscope method is better to examining the surface of the fiber, The main use of EM in fiber science has been in the range of medium to high magnification, which is near or beyond the limit of the microscope.
  • 8. aravinprince@gmail.com
  • 9. INFRA RED It is a composed by electro magnetic waves aravinprince@gmail.com Wave length between 1 to 15 µ It is used to determine the chemical formula for the textile fiber I.R is used to study about the crystalline and non crystalline part ( where as X Ray is only study about crystalline part) Reflection of CH3 is differ from CH2 so I will help to find out the atom structure and its chemical structure
  • 10. LINE DIAGRAM OF I.R SPECTROSCOPY aravinprince@gmail.com
  • 11. ATOMIC FORCE MICROSCOPE The atomic force microscope (AFM) or scanning force microscope (SFM) is a very high-resolution type of scanning probe microscopy , with demonstrated resolution of fractions of a nanometre, aravinprince@gmail.com more than 1000 times better than the optical diffraction limit The AFM consists of a cantilever with a sharp tip (probe) at its end that is used to scan the specimen surface AFM include mechanical contact force , Vander walls forces, capillary forces, chemical bonding ,electrostatic forces , magnetic forces, and etc.
  • 12. ATOMIC FORCE MICROSCOPE aravinprince@gmail.com
  • 13. Thank You aravinprince@gmail.com ARAVIN PRINCE .P
  • 14. REFERENCE1) http://upload.wikimedia.org/wikipedia/en/2/24/ Electron_Microscope.png aravinprince@gmail.com2) http://en.wikipedia.org/wiki/File:Atomic_force_mi croscope_block_diagram.svg3) http://en.wikipedia.org/wiki/File:Ernst_Ruska_El ectron_Microscope__Deutsches_Museum_- _Munich-edit.jpg4) http://en.wikipedia.org/wiki/File:Xray_diffraction_ pattern_3clpro.jpg