Characterization and Preparation of Modified Coarse Wool by KMnO₄

Abstract:

The surface modification process for coarse wool fiber which was oxidized by KMnO₄ first, and then MnO₂ covering on the fiber was reduced with Na₂SO₃ was studied. The method for surface modification of coarse wool fiber was determined from comparative analysis, the optimum oxidation process was as follows: concentration of KMnO₄ at 3g/L, time 15min, temperature 50°C, ratio of water and wool fiber was 50:1, and the optimum reduction process: Na₂SO₃ concentration at 20g/L, time 8min, temperature 55°C, ratio of water and wool fiber was 50:1. Compared with original wool fiber,the breaking strength and fineness of modified coarse wool fiber decreased, while the moisture regain increased from 15% to 18%.

• Periodical: Advanced Materials Research (Volume 739)
• Pages: 57-60
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.739.57
• Online since: August 2013
• Authors: Hai Yan Zhang, Xue Min Hu
• Keywords: Coarse Wool Fiber, KMnO₄, Na₂SO₃, Property, SEM

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