Birefringent characterization of necking phenomenon along cold-drawn polypropylene fibers. I. Offline drawing

Hassan M. El-Dessouky

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

An automated two-beam interference Pluta microscope was used to measure the optical anisotropy or birefringence of polymer fibers. A sample of polypropylene (PP) fibers was used and cold-drawn to low draw ratios. The neck shoulder "necking" was micro-detected at draw ratio 1.3 and characterized using the measured thickness and birefringence along the drawn PP fiber. Birefringence profiles at different regions along deformed PP fiber were determined to confirm the effect of necking on these fibers. The influence of this phenomenon on the molecular orientation function of PP fibers was presented. The strong dependence of the birefringence on the thickness was formulated analytically at the necked zone of the drawn PP fiber.
Original languageEnglish
Pages (from-to)757-764
Number of pages8
JournalJournal of Applied Polymer Science
Volume105
Issue number2
Early online date2 Apr 2007
DOIs
Publication statusPublished - 15 Jul 2007
Externally publishedYes

Fingerprint

Polypropylenes
Birefringence
Fibers
Optical anisotropy
Molecular orientation
Polymers
Microscopes

Cite this

@article{64507552ac1f44e9a643a28ef3222bb1,
title = "Birefringent characterization of necking phenomenon along cold-drawn polypropylene fibers. I. Offline drawing",
abstract = "An automated two-beam interference Pluta microscope was used to measure the optical anisotropy or birefringence of polymer fibers. A sample of polypropylene (PP) fibers was used and cold-drawn to low draw ratios. The neck shoulder {"}necking{"} was micro-detected at draw ratio 1.3 and characterized using the measured thickness and birefringence along the drawn PP fiber. Birefringence profiles at different regions along deformed PP fiber were determined to confirm the effect of necking on these fibers. The influence of this phenomenon on the molecular orientation function of PP fibers was presented. The strong dependence of the birefringence on the thickness was formulated analytically at the necked zone of the drawn PP fiber.",
keywords = "Birefringence, Fibers, Interferometry, Necking, Polypropylene",
author = "El-Dessouky, {Hassan M.}",
year = "2007",
month = "7",
day = "15",
doi = "10.1002/app.26101",
language = "English",
volume = "105",
pages = "757--764",
journal = "Journal of Applied Polymer Science",
issn = "0021-8995",
publisher = "John Wiley and Sons Inc.",
number = "2",

}

Birefringent characterization of necking phenomenon along cold-drawn polypropylene fibers. I. Offline drawing. / El-Dessouky, Hassan M.

In: Journal of Applied Polymer Science, Vol. 105, No. 2, 15.07.2007, p. 757-764.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Birefringent characterization of necking phenomenon along cold-drawn polypropylene fibers. I. Offline drawing

AU - El-Dessouky, Hassan M.

PY - 2007/7/15

Y1 - 2007/7/15

N2 - An automated two-beam interference Pluta microscope was used to measure the optical anisotropy or birefringence of polymer fibers. A sample of polypropylene (PP) fibers was used and cold-drawn to low draw ratios. The neck shoulder "necking" was micro-detected at draw ratio 1.3 and characterized using the measured thickness and birefringence along the drawn PP fiber. Birefringence profiles at different regions along deformed PP fiber were determined to confirm the effect of necking on these fibers. The influence of this phenomenon on the molecular orientation function of PP fibers was presented. The strong dependence of the birefringence on the thickness was formulated analytically at the necked zone of the drawn PP fiber.

AB - An automated two-beam interference Pluta microscope was used to measure the optical anisotropy or birefringence of polymer fibers. A sample of polypropylene (PP) fibers was used and cold-drawn to low draw ratios. The neck shoulder "necking" was micro-detected at draw ratio 1.3 and characterized using the measured thickness and birefringence along the drawn PP fiber. Birefringence profiles at different regions along deformed PP fiber were determined to confirm the effect of necking on these fibers. The influence of this phenomenon on the molecular orientation function of PP fibers was presented. The strong dependence of the birefringence on the thickness was formulated analytically at the necked zone of the drawn PP fiber.

KW - Birefringence

KW - Fibers

KW - Interferometry

KW - Necking

KW - Polypropylene

U2 - 10.1002/app.26101

DO - 10.1002/app.26101

M3 - Article

VL - 105

SP - 757

EP - 764

JO - Journal of Applied Polymer Science

JF - Journal of Applied Polymer Science

SN - 0021-8995

IS - 2

ER -