| Autor: |
Morris, N. M., Andrews, B. A. K, Catalano, E. A. |
| Předmět: |
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| Zdroj: |
Textile Chemist & Colorist; Feb94, Vol. 26 Issue 2, p19-21, 3p, 3 Charts, 3 Graphs |
| Abstrakt: |
Polycarboxylic acids, applied with catalysts based on phosphorus-containing inorganic acids, have been found to produce cotton fabrics with excellent smooth-drying properties and better strength retention than fabrics treated with methylol derivatives of cyclic ureas. Unfortunately, there has been no method available for the quantitation of the polycarboxylic acids on fabrics either directly or as a reference. Recently the use of infrared spectroscopy to determine the amount of BTCA (butanetetracarboxylic acid) on cotton fabrics has been reported. Ratio of the ester/acid carbonyl peak at 1730 cm-1 to the CH2-bending peak in cellulose at 1373 cm-1 has given excellent quantitative results for cotton treated with this acid. The extension of the method to citric acid, another poiycarboxylic acid of potential commercial importance is described. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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