Modification of Bleached Softwood Pulp with Xylanase

Min Du; Xin Ping Li; Wu Guang Li

doi:10.4028/www.scientific.net/AMR.393-395.855

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 393-395Modification of Bleached Softwood Pulp with...

Modification of Bleached Softwood Pulp with Xylanase

Abstract:

Xylanse named as Pulpzyme HC was used to modify bleached softwood pulp before refining. The efficiency of modification by different enzyme dosage was invested in this paper. The result showed that enzymatic treatment decreased the dissolved charge and absolute Zeta potential of the slurry and increased the fiber surface wettability. Appropriate Pulpzyme HC (0.4u/g) could improve the refining efficiency by 9.5°SR. The brightness and bulk of hand sheets increased with the increasing of the enzyme. Tensile index and tear index of hand sheets reached the maximum at the enzyme dosage of 0.2u/g. In this dosage, fiber length, knot index and curl index of fiber increased. But excessive enzyme decreased the tear index and had no effect on the tensile index.

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Periodical:

Advanced Materials Research (Volumes 393-395)

Pages:

855-858

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.393-395.855

Citation:

Cite this paper

Online since:

November 2011

Authors:

Min Du, Xin Ping Li, Wu Guang Li

Keywords:

Dissolved Charge, Modification, Refining, Wettability, Xylanase

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