Characterization of the surface properties of differently scoured cotton by inverse gas chromatography at infinite dilution

Emília Csiszár, E. Fekete

Research output: Article

12 Citations (Scopus)

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 languageEnglish
Pages (from-to)1307-1316
Number of pages10
JournalTextile Research Journal
Volume80
Issue number13
DOIs
Publication statusPublished - 2010

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Gas chromatography
Cotton
Dilution
Surface properties
Polygalacturonase
Surface tension
Electrons
Waxes
Hydrophilicity
Temperature measurement
Acids

ASJC Scopus subject areas

  • Polymers and Plastics
  • Chemical Engineering (miscellaneous)

Cite this

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title = "Characterization of the surface properties of differently scoured cotton by inverse gas chromatography at infinite dilution",
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.",
keywords = "Alkaline scouring, Bioscouring, Cotton, Inverse gas chromatography, Surface properties",
author = "Em{\'i}lia Csisz{\'a}r and E. Fekete",
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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

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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

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