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《China Pulp & Paper Industry》 2010-14
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Strength improvement of poplar APMP by cellulases and xylanase

YANG Bo, QIN Meng-hua, LIU Na, FU Ying-juan, WU Kai-li (Key Lab of Paper Science and Tech- nology of Ministry of Education, Shandong Institute of Light Industry, Ji’nan 250353, China)  
Strength properties of alkline peroxide mechanical pulp (APMP) of poplar were modified by cellulase and xylanase. The fiber morphologies after enzymatic treatment were analyzed by fiber quality analyzer (FQA) and environment scanning electron microscope (ESEM). The results show that the tensile, burst and tear index of pulp are improved in differenr degree after enzymatic treatment. The fines content and kink index of fiber decrease and the fiber length and fiber coarseness increases at a suitable enzyme dosage. The modification effect of pulp with cellulase or xylanase alone treatment is better than with the two enzyme co-treatment. The roughness and the porosity of fiber surface increase after cellulase or xylanase treatment.
【Fund】: 国家教育部新世纪优秀人才支持计划(NCET-08-0882);; 国家自然科学基金(30972327 20576065);; 山东省优秀中青年科学家科研奖励基金(2007BS02013)的资助
【CateGory Index】: TS743.14
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