Naslov
Barium Activity Number-Studies of Adsorption Isoterms of Ba(OH)2 on Mercerized Cotton Yarns

Autori
Grancarić, Ana Marija ; Pušić, Tanja ; Soljačić, Ivo

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
AATCC International Conference and Exhibition-Book of Papers / KEESEE, SUSAN h. - Nashville (TN) : American Association of Textile Chemists and Colorists, 1996

Skup
1996 AATCC International Conference and Exhibition

Mjesto i datum
Nashville (TN), Sjedinjene Američke Države, 15.09.1996. - 18.09.1996

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Cotton; Mercerization of cotton; Ba-number; Degree of mercerization;

Sažetak
A standard test method for barium activity number determination needs a couple of days work. This long process includes scouring procedure, drying, equilibrating samples to room conditions and approximately two hours for process adsorption of Ba(OH)2 in the glass stoppered flask that requires frequent shaking followed by titration of Ba(OH)2 with 0.1 mole/ dm3 HCl. The aim of this paper was to determine adsorption isotherms of Ba(OH)2 on cotton yarn of different mercerization degrees. For this purpose cotton yarns (16/2 ply) were mercerized without and under tension in NaOH solutions to which anionic surfactant was added. Unmercerized and mercerized cotton yarns were then treated in Ba(OH)2 solutions at constant temperature and under controlled shaking. From the adsorption data isotherms were determined. This was carried out by measuring the concentration change of Ba(OH)2 as a function of time, until the equilibrium condition was reached. The shape of adsorption isotherms enables us to draw conclusions regarding development of the method for barium number which can be shorter and easier to carry out than a standard one.

Izvorni jezik
Engleski

Znanstvena područja
Tekstilna tehnologija

POVEZANOST RADA