Retardation of Degradation in Accelerated Aging of Cotton Cellulose Using Borohydride Reduction

  • Kim, Hye-Kyung (Dept. of Organic Materials and Fiber Engineering, Soongsil University) ;
  • Choi, Hyung-Min (Dept. of Clothing, Wonkwang University)
  • Published : 2007.06.30

Abstract

Degradation of cellulose during prolonged exposure in atmospheric conditions has been recognized as one of main problems in preserving cellulose-made products. The purpose of this research was therefore to study effects of borohydride reduction in improving both the color and strength retention of cotton fabrics artificially aged at temperatures ranging from $100^{\circ}C$ to $150^{\circ}C$. Results indicated that the fabrics treated with either sodium or tetramethylammonium borohydrides (TMA) were degraded at rates about one-half that of water-washed cotton. These results were consistent over the temperature range. Calculation of the activation energy (Ea) by different methods showed $Ea\;=\;25.5{\pm}\;1.5\;Kcal$, in keeping with measurements made by others at lower temperatures. The TMA-treatment was effective in minimizing discoloration of the fabrics with pre-baking, but not of the un-prebaked fabrics.

Keywords

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