Preparation and Characterisation of Wool-Keratin Films Based on SMS Nonwovens
Keratins from wool were reduced by the optimize method(PH 7.0, NaHSO3 50wt%, Urea 200wt% and SDS 15wt%), wool 5g, distilled water100mL, shaken at 80°C inconstant temperature water-bath for 24h, filtered through different nylon screens with 50-300 aperture using decompression filtering, dialyzed against distilled water afford a colorless and clear solution. The keratins main molecular weight was 35,000-45,000 Daltons; a clear film is readily prepared from a keratin solution containing glycerol or PEG on the basic of SMS nonwovens; the films moisture content was changed while glycerol concentration changed from 5% to 25%; the film was insoluble in water and organic solvents. The films were tested by SEM, Ultraviolet and FTIR.
Jianmin Zeng, Taosen Li, Shaojian Ma, Zhengyi Jiang and Daoguo Yang
J. Q. Li et al., "Preparation and Characterisation of Wool-Keratin Films Based on SMS Nonwovens", Advanced Materials Research, Vols. 194-196, pp. 1529-1535, 2011