Refining Boosting Effects of Cellulase and Xylanase on P-RC APMP Pulp of Fast-growing Poplar Lop Wood
Effect of cellulase and xylanase on refining boosting of P-RC APMP pulp of fast-growing poplar lop wood was studied.The results showed that the refining performance and quality of P-RC APMP pulp were improved.The beating degree of treated pulp increased in range from 3°SR to 11°SR,and refining energy decreased obviously.The optimal dosages of cellulase and xylanase were 25 IU/g.Compared with anpretreated pulp,the breaking length,tearing index,bursting index,folding endurance and brightness of the pretreated pulp with cellulase increased by 11%,13%,14%,50%and 1.2% ISO respectively,and the pretreated pulp with xylanase increased by 2%,15%,12%,75% and 1.9% ISO respectively.The PC values of the pulps pretreated with cellulase and xylanas decreased.It Was found the pretreatment effect of cellulase was better than that of xylanase.