酶预处理对漂白针叶木浆打浆性能的影响

Effect of Enzymatic Pretreatment on Beatability of Bleached Softwood Pulp

用纤维素内切酶N476对3种不同的漂白针叶木浆进行预处理实验,获得打浆度、保水值等表征纤维特性的数据,并对这些数据进行分析对比。结果表明,细胞壁薄、细胞腔大、纤维较长的原料经酶处理后纤维滤水性、润湿性、纤维表面积相对增加较快,在相同的磨浆转数下打浆度增加幅度大。

Pretreatment with endo-cellulose before beating can reduce beating energy consumption.However,the effect is quite different when the enzyme is utilized to different fiber raw materials.Three kinds of bleached softwood pulps were pretreated with endo-cellulose N476,and the data of beating degree,water retention value,and contact angle were compared and analyzed.The results showed that the pulps which have thin cell wall,long fiber and wide lumen can get higher values of drainability,wettability,surface area and beating degree after pretreatment.