LACCASE-CATALYZED FUNCTIONALIZATION WITH PHENOLIC COMPOUNDS IMPROVES PAPER STRENGTH
The unbleached softwood kraft pulps were treated by laccase in presence of phenolic compounds aiming to improve the dry- and wet-strength of paper. The results showed that the phenolic compounds can graft on the fibers and functionalize the pulp. The laccase combined with phenolic acids treatment can improve the dry tensile strength of paper. The wet tensile strength of paper increased after laccase treatment in presence of methyl syringate with hydrophobic methyl group. The functionalized fibers had a higher total carboxyl group, opacity, kappa number and a reduced brightness after laccase treatment combined with most of phenolic compounds. The participation of phenolic compounds could enhance the reactivity of laccase to fibers. There was a close relationship between the compound structure and pulp properties.
laccase phenolic compound paper strength
Liu Na Hu Jie Ouyang Zhizhou Qin Menghua Liu Cheng
Key Lab of Paper Science and Technology of Ministry of Education, Shandong Institute of Light Industry,Jinan, 250353, China
国际会议
广州
英文
665-668
2010-11-08（万方平台首次上网日期，不代表论文的发表时间）