アルコール/水系における酸性亜硫酸ナトリウムによる羊毛の応力緩和

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タイトル別名
  • STRESS RELAXATION OF WOOL BY SODIUM BISULFITE IN AQUEOUS ALCOHOLS
  • アルコール スイケイ ニ オケル サンセイ アリュウサン ナトリウム ニ ヨル ヨウモウ ノ オウリョク カンワ

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抄録

The stress relaxation of wool in aqueous alcohols was measured at 22±1°C. The experiments were carried out as follows. After immersed in water for 24hrs., a wool fiber stretched to 20% based on initial length at the rate of 20mm/min and then relaxed for 30min. Then water was exchanged by aqueous alcohol and the relaxation was continued for 180min. It was found that the rate and total value of relaxation increased with the chain length of alkyl group in alcohol and that the maximum relaxation occured in 45_??_60% alcohol solutions. These results were explained in terms of hydrophobic interaction of wool molecules. The same experiments were carried out with 0.01, 0.1, 0.5mole sodium bisulfite in aqueous alcohol. In the case of 0.01 mole sodium bisulfite, the effect of alcohol on the stress relaxation was small, especially in the lower alcohol concentrations. Although the effect of chain length of alkyl gronp in alcohol on this chemical relaxation in higher concentration of sodiumb isulfite was similar to that in aqueous alcohol, the rate and total value of relaxation increased with the alcohol concentration.

収録刊行物

  • 繊維学会誌

    繊維学会誌 27 (11), 473-477, 1971

    社団法人 繊維学会

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