白腐菌预处理对杨木硫酸盐法制浆性能的影响  

Effect of White-Rot Fungus Pretreatment on the Kraft Pulping of Poplar

作　　者：高慧[1] 张利萍[1] 

机构地区：[1]安徽农业大学林学与园林学院,合肥230036

出　　处：《林业科学》2009年第1期125-130,共6页Scientia Silvae Sinicae

基　　金：安徽省教育厅自然科学基金(2006KI038C);安徽农业大学创新团队资助

摘　　要：以杨木和白腐菌为研究对象,测定白腐菌预处理前后杨木化学组成与纤维形态的变化,找出合适菌株和最佳的预处理时间,进行硫酸盐法制浆前的预处理,比较制浆后浆料的卡伯值、得率、黏度和纸张的物理性能。结果表明:对木质素降解程度由大到小为香菇菌、云芝菌、杂色木云芝菌、脉射菌、佛罗里达侧耳和糙皮侧耳,香菇菌对综纤维素的降解程度最大,杂色木云芝菌的降解最小;预处理后,杨木纤维平均长度略有降低,纤维的长宽比得到了提高,壁腔比下降;与参照样相比,经脉射菌、杂色木云芝菌和佛罗里达侧耳预处理后制得的浆料,卡伯值降低、得率增加、黏度增加、脱木素选择性提高,纸张的撕裂指数和抗张指数均增加;经过香菇菌预处理后得到的浆料,虽然卡伯值降低、脱木素选择性增加,但是黏度和得率却在下降,纸张的撕裂指数和抗张指数减小。经过这4种白腐菌预处理后,纸张的耐折度和白度均大于对照。White-rot fungus and poplar were selected as materials in this paper. Chemical composition and fiber morphology properties of poplar before and after fungus pretreatment were analyzed. The most suitable white-rot fungus and time for the next kraft pulping were probed. In these conditions, the poplar was made pulping, and the kappa number, the yield and viscosity of the pulp were measured. The physical properties of the paper were determined. The results showed that the level of lignin degradation of different fungus from high to low were ： Lentinus edodes, Coriolus versicolor, Polystictus versicolor, Phlebia radiate, Pleurotus florida, and Pleurotus streatus. Lentinus edodes to holocellulose degradation was the highest and Polystictus versicolor was the lowest. After pretreatment, the average fiber length was reduced, and the ratio of the fiber length to width was increased, and the runkel ratio was decreased. Compared to the reference sample, results of pulping showed that after Phlebia radiata, Polystictus versicolor, and Pleurotus florida pretreatment, the kappa number was decreased, the pulp yield, viscosity and delignification selectivity were increased, the indexes of tensile and tear of the paper were improved. After Lentinus edodes pretreatment, the kappa number and delignification selectivity were decreased and increased, respectively, but the pulp yield and viscosity were decreased,the indexes of tensile and tear were reduced. After the four white-rot fungus pretreatment, the folding endurance and whiteness were increased.

关 键 词：杨木 白腐菌 硫酸盐法制浆 纸张的物理性能 

分 类 号：TS743.1[轻工技术与工程—制浆造纸工程]