白腐菌预处理对速生杨APMP的影响  

Effect of bio-pretreatment on fast-growing poplar APMP

作　　者：杨秀丽[1] 杨桂花[1] 

机构地区：[1]山东轻工业学院制浆造纸科学与技术省部共建教育部重点实验室,山东济南250353

出　　处：《山东轻工业学院学报（自然科学版）》2011年第1期1-4,共4页Journal of Shandong Polytechnic University

基　　金：国家自然科学基金资助项目(30972326;31070525);山东自然科学基金资助项目(ZR2010CM065)

摘　　要：利用白腐菌Trametes hirsuta BYBF对APMP制浆过程中一段挤压疏解后的速生杨木片进行预处理,研究处理前后原料质量的变化和制浆过程中聚戊糖和木素的溶出情况,通过环境扫描电镜(ESEM)和纤维质量分析仪(FQA)观察和分析纤维形态的变化。结果表明,经过白腐菌处理木片12d后原料失重6.48%,在制浆过程中聚戊糖和木素最终溶出量分别为28.53%和18.36%,均比未经过白腐菌处理的溶出量大。在打浆度相近的情况下,经过处理的浆料的物理强度均高于未处理浆料。经过白腐菌处理的浆料纤维的形态发生变化,纤维的平均长度增加,扭结和卷曲指数升高,纤维变得更加柔软。Poplar chips of the first stage MSD screwed were treated by white-rot fungi Trametes hirsuta BYBF.Effects of white-rot fungi pretreatment on the weight loss of chips material and the dissolution of polypentanose and lignin in pulping were studied.According to ESEM and FQA,the morphology of fiber was analyzed.The results showed that the weight loss of chips material pretreated by white-rot fungi for 12 days was 6.48%,the dissolution rate of polypentanose and lignin were 28.53% and 18.36%,respectively.With the similar beating degree,the strength properties of pretreated pulp were increased.The morphology of fiber treated by white-rot fungi has changed.Average length of fiber was remarkably increased.Crimp index and kink index were raised.Fibers were softer and more flexible.

关 键 词：生物预处理 溶出率 物理强度 纤维形态 

分 类 号：TS721[轻工技术与工程—制浆造纸工程]