JOURNAL OF TEXTILE RESEARCH ›› 2014, Vol. 35 ›› Issue (2): 116-0.

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Study on swelling behaviors of cellulose pulp in NMMO/H2O

  

  • Received:2013-11-05 Revised:2013-07-26 Online:2014-02-15 Published:2014-02-17

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Abstract: The swelling behaviors of cellulose in N-methyl morpholine solution (NMMO/H2O) were investigated by measuring the thickness crystallinity changes before and after swelling of cellulose pulp in NMMO/H2O. The effects of concentration, temperature and time of swelling conditions in NMMO/H2O solution during swelling of cellulose pulp were discussed. The results showed that cellulose swelling rate was increased with increasing the NMMO concentration and swelling temperature, and the swelling effect is better. Based on X- ray diffraction analysis of the crystallinity of the swelling cellulose pulp, it was concluded as following: NMMO/H2O can change the crystallinity of cellulose pulp. The more crystallinity the of cellulose pulp was decreased with increasing the concentration of NMMO/H2O solution, and it was influenced by temperature.

Key words:  , NMMO/H2O, cellulose, thickness, swelling, crystallinity

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