Indian Journal of Physics

, Volume 91, Issue 4, pp 377–382 | Cite as

Structural investigation of Mimosa pudica Linn fibre

  • S. R. Patra
  • P. Pattojoshi
  • T. N. Tiwari
  • B. Mallick
Original Paper
  • 169 Downloads

Abstract

Sensitive plant (Mimosa pudica Linn.) fibre is a natural fibre with electrically conductive property. Because of its electro-active sensing nature, it has been found very interesting among physicists, chemists, biologists, material scientists and technologists. So far as our knowledge is concerned; there is no report on the X-ray structure of M. pudica fibre using diffraction technique. In the present report, the M. pudica fibre has been extracted from the stem of the herb by sinking the stem in 10% NaOH solution for one week. The diffraction pattern of the fibre is found out to be cellulose-I. The effect of the fibre structure and its orientation due to different mounting have been investigated using X-ray diffraction technique. The I max of cellulose-I has been observed along (002) and \((10\overline{1)}\) for the perpendicular and parallel mounting of the native-fibre, respectively. Full width at half maxima of the diffraction profile turns out to be decreased with fibre orientation. Dimension of crystallite size D hkl estimated in the perpendicular mounting \(D_{hkl}^{ \bot }\) is more as compared to that of the parallel mounting \(D_{hkl}^{{^{\parallel } }}\). The smallest crystallite sizes observed in both parallel and perpendicular mounting are 18.78 and 30.78 Å respectively. It is expected that the present study may help to analyse the X-ray diffraction of fibre materials in general and natural fibres in particular.

Keywords

Mimosa pudica Linn Electrically conductive Crystallite size 

Abbreviations

M. pudica

Mimosa pudica

XRD

X-ray diffraction

FWHM

Full width at half maximum

PACS Nos.

61.82.Pv 

Notes

Acknowledgements

The authors are really indebted to the Professor T. Som of the Institute of Physics, Bhubaneswar, India, for providing the X-ray diffraction facility.

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Copyright information

© Indian Association for the Cultivation of Science 2016

Authors and Affiliations

  • S. R. Patra
    • 1
  • P. Pattojoshi
    • 1
  • T. N. Tiwari
    • 2
  • B. Mallick
    • 3
  1. 1.School of Applied SciencesKIIT UniversityBhubaneswarIndia
  2. 2.Unique Research CenterRourkelaIndia
  3. 3.Institute of PhysicsBhubaneswarIndia

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