Effect of heating-cooling cycle on the opto-structural properties of low-density polyethylene fibres using two-beam interference microscopy

H. M. El-Dessouky, K. M. Yassien, C. A. Lawrence

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

A hot stage attached with a two-beam interference (Pluta) microscope was used to apply a heating-cooling cycle (HCC) on low-density polyethylene fibres (LDPE). The variation of the refractive indices (n{double pipe} and n⊥) with the temperature was carried out during the heating and cooling of the LDPE fibres. The activation energy (Ea) and thermooptic coefficient (dn/dT) were calculated for the investigated LDPE fibres. The spectral dispersion curves, percent crystallinity and orientation function were determined for the treated LDPE fibres. It was found that the HCC for LDPE fibre implies: a reversible behaviour of both optical and structural properties against temperature and an improvement in the fibre crystallinity.
LanguageEnglish
Pages812-822
Number of pages11
JournalJournal of the Textile Institute
Volume101
Issue number9
Early online date22 Mar 2010
DOIs
Publication statusPublished - 1 Sep 2010
Externally publishedYes

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Interference Microscopy
Low density polyethylenes
Polyethylene
polyethylene
Heating
Structural properties
microscopy
Microscopic examination
cooling
Cooling
heat
Fibers
Refractometry
Temperature
refractive index
pipes
activation energy
microscopes
temperature
Refractive index

Cite this

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Effect of heating-cooling cycle on the opto-structural properties of low-density polyethylene fibres using two-beam interference microscopy. / El-Dessouky, H. M.; Yassien, K. M.; Lawrence, C. A.

In: Journal of the Textile Institute, Vol. 101, No. 9, 01.09.2010, p. 812-822.

Research output: Contribution to journalArticle

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