Adsorption Equation and Adsorption Paramenter of Cellulase to Cellulose Fibres in Biofinishing

Adsorption isotherms for SF cellulase from Trichoderma pseudokoningii on cotton, flax and viscose yarns were investigated to provide information about cellulasecellulose binding on different types of cellulosic fibres.The half- saturation constants and maximum adsorption constants suggest that SF cellulase has greater affinity for viscose than for cotton and greater affinity for cotton than for flax. It is suggested that this is related to the different crystallinities and microporous structures of these fibre types. The fraction of adsorbable protein in the total cellulase was found to be the same for each of the three cellulase substrates.

纤维素纤维的氨基甲酸酯化变性研究

本文对尿素与纤维素纤维的反应机制、反应条件以及尿素-纤维素衍生物,即氨基甲酸酯化纤维素纤维对阴离子染料的吸附性能和条件等作了探讨。实验结果表明,氨基甲酸酯化变性能明显提高纤维素纤维对阴离子染料的吸附能力,若应用于染色和污水脱色过程,具有工艺简单、成本低廉等特点。