A preparation method of cellulose fiber networks reinforced by glutaraldehyde-treated chitosan

作者：Wu Tongfei; Farnood Ramin^*

来源：Cellulose, 2015, 22(3): 1955-1961.

DOI：10.1007/s10570-015-0609-z

• Cellulose fiber
• Chitosan
• Strength additive
• Wet strength

An eco-friendly polymeric additive was developed to increase the dry and wet strengths of cellulose fiber networks. Biopolymer chitosan was firstly treated with glutaraldehyde (GA) and then mixed with cellulose fibers in pulp suspension. GA-treated chitosan was deposited onto cellulose fibers by adjusting pH. Increases of 140 and 930 % were achieved for dry and wet tensile strength, respectively, at 2 wt% dosage which were much higher than that for the chitosan-treated samples (50 and 180 %, respectively). The surface morphology of cellulose fibers deposited with GA-treated chitosan was examined by scanning electron microscopy. The effects of GA-chitosan treatment on tear resistance and color properties were also investigated.

• 出版日期2015-6