麦草化机浆仿酶预处理工艺  

A Novel CMP Process of Wheat Straw Pretreated by GIF Biomimetic Method

作　　者：史会剑[1] 杨海涛[2] 王松[2] 谢益民[2] 

机构地区：[1]山东省环境保护科学研究设计院,山东济南250013 [2]湖北工业大学,化学与环境工程学院,湖北武汉430068

出　　处：《纸和造纸》2013年第4期64-67,共4页Paper and Paper Making

基　　金：国家自然科学基金(30901140;31070521);山东大学微生物技术国家重点实验室开放基金项目(M2010-01);山东省"泰山学者"建设工程资助项目

摘　　要：对麦草进行GIF仿酶预处理,然后补加氢氧化钠进行碱抽提,两段磨浆后得到麦草浆。利用FQA纤维仪、扫描电镜及光学显微镜分析麦草浆中纤维的质量和形态,并研究氢氧化钠加入量对纤维及纸张强度指标的影响。结果表明,随着氢氧化钠用量的增加,纤维束逐渐减少,同时细小纤维和纤维的重均长度大幅度增加;纸浆得率逐渐降低,手抄片的裂断长、环压强度指数、紧度、撕裂指数和耐破指数随着氢氧化钠用量的增加而增加。通过分析发现,当氢氧化钠用量为5.0%时,纤维形态较完整且挺直,纤维分散良好;此时手抄片的裂断长为4.43km,环压强度指数为13.47Nm·g-1,紧度为0.55g·cm-3。符合A级瓦楞纸的强度要求。GIF biomimetic system was applied to the pretreatment of CMP pulpinging of wheat straw. The pretreated wheat straw was extracted with alkali. Wheat straw CMP was obtained after two stage refining. FQA fiber quality analyzer and microscope were used to investigate the quality and morphology of fiber of the pulp. With the increase of sodium hydroxide dosage, fiber bundle decreased remarkably, while the content of fiber fines and length weighted average fiber length increased greatly. However, results also indicated that yield of wheat straw ptflp decreased, while breaking length, ring crush index, density, tear index, and burst index of handsheet increased with the increase of sodium hydroxide amount. The optimal technological condition obtained from experiment was as follows： dosage of sodium hydroxide 5.0%, temperature 30℃. Physical properties of the obtained handsheet were as follows： breaking length of sheet 4.43 km, ring crush index 13.47 N·m·g^-1, density 0.55 g·cm^-3. The strength of the paper was in full compliance with Corrugating medium A-class standards.

关 键 词：麦草 化学机械浆 GIF仿酶 碱抽提 预处理 

分 类 号：TS745[轻工技术与工程—制浆造纸工程]