摘要
通过打浆前后采用纤维素酶对漂白针叶木浆进行处理,研究了酶处理前后纤维形态、浆料的Zela电位及纸张强度的变化。结果表明,纤维素酶处理后再进行打浆,打浆度显著提高,浆料的Zeta电位下降,细小纤维含量降低,纤维的平均长度增加。打浆后再用纤维素酶处理,打浆度则随着酶用量和酶处理时间的增加而降低,酶用量对纸张的物理强度没有明显影响。打浆前酶处理对纸浆性能的改善要优于打浆后酶处理。
The bleached conifer pulps before and after beating were treated by cellulases.The fiber morphology, Zeta potential and the strength of paper were studied.The results demonstrated that enzyme treatment before beat- ing,beating degree and the average length of fiber increased markedly,Zeta potential and the content of fines de- creased slightly.Enzyme treatment after beating,the beating degree reduced with increase of the dosage and treat- ment time.Improvement on properties of pulp with enzyme treatment bef...
出处
《造纸科学与技术》
2008年第1期37-39,15,共4页
Paper Science & Technology
