Open AccessThe application of scanning electronic microscopy: The study of the surface structures of the upper layers of dyed polyester fiber samples in the ostacet yellow E-L5R
Author(s) -
Miomir Miljković,
Milovan M. Purenović,
Aleksandra Zarubica
Publication year - 2004
Publication title -
facta universitatis. series: physics, chemistry and technology
Language(s) - English
Resource type - Journals
eISSN - 2406-0879
pISSN - 0354-4656
DOI - 10.2298/fupct0401087m
Subject(s) - scanning electron microscope , formic acid , materials science , oxalic acid , acetic acid , chromaticity , fiber , analytical chemistry (journal) , polyester , composite material , chemistry , optics , chromatography , organic chemistry , physics
Scanning electronic microscope JSM-5300 (JEOL, Japan) has been used to investigate the structure of the PES fibers upper layers. Preparation of samples was performed by placing them on an aluminium support, with a glue or double-sided adhesive tape. The tool for spreading the conductive layer on the sample's surface, used in this work, was JFC-1100E ION SPUTTER (JEOL Co., Japan). Potential difference of electron acceleration was 30 kV, and multiplication of the samples was 3500 times. ORWO NP 20 DIN films were used for taking the photos. The samples were dyed with C.I.D. Yellow 23, in concentration of l%, at pH = 4.5, with the following acids added: acetic formic and oxalic. The results show absence of any internal damage in fiber structure. On the surface however, groups of particles have been observed varying in shape, magnitude and spacing density. Organic (acetic, formic and oxalic) acids used in the experiments caused differences in upper layers structures of dyed PES fibers. This is the main reason to induce differences in color (DE), chromaticity (DH) and lightness (DL), among the samples (with the all acids included) and a standard (addition of acetic acid only)