Abstract
Inverse gas chromatography (IGC) has been successfully used for comparative characterization of the surface properties of alkaline-scoured and bioscoured cotton samples in fibrous form. Under appropriate standard conditions the dispersion component (γsd) of surface tension and the electron-acceptor (KA) and electron-donor (KD) constants were determined for characterizing the surface properties of raw, alkaline-scoured and pectinase-scoured cotton. The dispersion component of surface tension increased slightly with increasing hydrophilicity of the surfaces (raw: 39.0 mJ/m2, bioscoured: 40.0 mJ/m2, alkaline scoured: 41.7 mJ/m2, at 30°C), indicating that the wax removal that occurred is somewhat higher in alkaline scouring than in bioscouring. The (γsd) values decreased continuously with increasing measurement temperature in the range of 30-70°C (raw: 32.0 mJ/m2, bioscoured: 33.2 mJ/m2, alkaline scoured: 35.9 mJ/m2, at 70°C). Polar probes were not retained on raw cotton at all. The surface of the alkaline-scoured and bioscoured cotton samples was predominantly basic in character: KD /KA 6.8 and 8.2, respectively, where KA and KD were calculated from the ΔGA ab at 30°C. Despite the weight loss difference (3.2% and 0.7% for alkaline and bioscouring, respectively) and the residual pectin in bioscoured cotton, the results show that the acid-base character of the surface of the alkaline and pectinase-scoured samples is very similar.
| Original language | English |
|---|---|
| Pages (from-to) | 1307-1316 |
| Number of pages | 10 |
| Journal | Textile Research Journal |
| Volume | 80 |
| Issue number | 13 |
| DOIs | |
| Publication status | Published - 2010 |
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ASJC Scopus subject areas
- Polymers and Plastics
- Chemical Engineering (miscellaneous)
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Characterization of the surface properties of differently scoured cotton by inverse gas chromatography at infinite dilution. / Csiszár, Emília; Fekete, E.
In: Textile Research Journal, Vol. 80, No. 13, 2010, p. 1307-1316.Research output: Article
}
TY - JOUR
T1 - Characterization of the surface properties of differently scoured cotton by inverse gas chromatography at infinite dilution
AU - Csiszár, Emília
AU - Fekete, E.
PY - 2010
Y1 - 2010
N2 - Inverse gas chromatography (IGC) has been successfully used for comparative characterization of the surface properties of alkaline-scoured and bioscoured cotton samples in fibrous form. Under appropriate standard conditions the dispersion component (γsd) of surface tension and the electron-acceptor (KA) and electron-donor (KD) constants were determined for characterizing the surface properties of raw, alkaline-scoured and pectinase-scoured cotton. The dispersion component of surface tension increased slightly with increasing hydrophilicity of the surfaces (raw: 39.0 mJ/m2, bioscoured: 40.0 mJ/m2, alkaline scoured: 41.7 mJ/m2, at 30°C), indicating that the wax removal that occurred is somewhat higher in alkaline scouring than in bioscouring. The (γsd) values decreased continuously with increasing measurement temperature in the range of 30-70°C (raw: 32.0 mJ/m2, bioscoured: 33.2 mJ/m2, alkaline scoured: 35.9 mJ/m2, at 70°C). Polar probes were not retained on raw cotton at all. The surface of the alkaline-scoured and bioscoured cotton samples was predominantly basic in character: KD /KA 6.8 and 8.2, respectively, where KA and KD were calculated from the ΔGA ab at 30°C. Despite the weight loss difference (3.2% and 0.7% for alkaline and bioscouring, respectively) and the residual pectin in bioscoured cotton, the results show that the acid-base character of the surface of the alkaline and pectinase-scoured samples is very similar.
AB - Inverse gas chromatography (IGC) has been successfully used for comparative characterization of the surface properties of alkaline-scoured and bioscoured cotton samples in fibrous form. Under appropriate standard conditions the dispersion component (γsd) of surface tension and the electron-acceptor (KA) and electron-donor (KD) constants were determined for characterizing the surface properties of raw, alkaline-scoured and pectinase-scoured cotton. The dispersion component of surface tension increased slightly with increasing hydrophilicity of the surfaces (raw: 39.0 mJ/m2, bioscoured: 40.0 mJ/m2, alkaline scoured: 41.7 mJ/m2, at 30°C), indicating that the wax removal that occurred is somewhat higher in alkaline scouring than in bioscouring. The (γsd) values decreased continuously with increasing measurement temperature in the range of 30-70°C (raw: 32.0 mJ/m2, bioscoured: 33.2 mJ/m2, alkaline scoured: 35.9 mJ/m2, at 70°C). Polar probes were not retained on raw cotton at all. The surface of the alkaline-scoured and bioscoured cotton samples was predominantly basic in character: KD /KA 6.8 and 8.2, respectively, where KA and KD were calculated from the ΔGA ab at 30°C. Despite the weight loss difference (3.2% and 0.7% for alkaline and bioscouring, respectively) and the residual pectin in bioscoured cotton, the results show that the acid-base character of the surface of the alkaline and pectinase-scoured samples is very similar.
KW - Alkaline scouring
KW - Bioscouring
KW - Cotton
KW - Inverse gas chromatography
KW - Surface properties
UR - http://www.scopus.com/inward/record.url?scp=77955145446&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77955145446&partnerID=8YFLogxK
U2 - 10.1177/0040517509358797
DO - 10.1177/0040517509358797
M3 - Article
AN - SCOPUS:77955145446
VL - 80
SP - 1307
EP - 1316
JO - Textile Reseach Journal
JF - Textile Reseach Journal
SN - 0040-5175
IS - 13
ER -