云杉化机浆长纤维和细小纤维在漆酶介体脱木素过程中的差异  

Difference between Long Fiber and Fine of Spruce CTMP Pulp in the Process of LMS Delignification

作　　者：王宝玉[1] 李军荣[2] 钱丽颖[2] 

机构地区：[1]广东轻工职业技术学院,广东广州510300 [2]华南理工大学制浆造纸国家重点实验室,广东广州510640

出　　处：《纸和造纸》2014年第7期17-20,共4页Paper and Paper Making

基　　金：制浆造纸工程国家重点实验室开放基金项目(201135);广东省自然科学基金博士启动项目(S2012040008021)

摘　　要：采用漆酶介体结合H2O2对云杉化机浆脱木素,分析长纤维组分和细小纤维组分在各段的木素和丙酮抽出物含量,比较了长纤维组分和细小纤维组分在不同漆酶用量下纸浆的白度、色差和染料去除指数,利用漆酶介体分别对长纤维和细小纤维组分脱木素,并测定长纤维和细小纤维组分的强度和白度。研究表明:云杉化机浆细小纤维组分的木素和抽出物含量高于长纤维组分;细小纤维组分的吸附能力强,反应效率高,其最佳漆酶用量低于长纤维组分。在漆酶介体结合H2O2脱木素过程中,当漆酶用量相同时,与混合处理长纤维组分和细小纤维组分相比,采用LMS分别处理长纤维组分和细小纤维组分能够提高纸浆的白度、抗张指数、耐破指数和撕裂指数,其中抗张指数提高程度较大。This paper focused on the delignification of spruce CTMP in the process of LMS combining H202, the content of lignin and acetone extractives of long fibers and fines in each stage were analyzed, the optimum laccase dose were determined by measuring the whiteness, color difference and dye removal index of long fibers and fine, and the long fiber and fine were treated separately in the LMS process. The results indicated that the lignin and acetone extractive of fine is higher than the long fibers; fine has a strong adsorptive capacity, its optimum laccase dose is lower than that of long fibers. At the condition of the same laccase dose, treating long fiber and fine separately can increase the whiteness, tensile index, burst index and tear index, and the tensile index was improved a lot.

关 键 词：LMS 细小纤维 纸浆强度 

分 类 号：TS745[轻工技术与工程—制浆造纸工程]