杨木APMP浆打浆性能及其机理研究  

Poplar APMP Refining and Its Mechanism

作　　者：夏新兴[1] 郭娜娜[1] 林英[1] 张美云[1] 

机构地区：[1]陕西科技大学陕西省造纸技术和特种纸开发重点实验室,陕西西安710021

出　　处：《中国造纸》2009年第10期18-21,共4页China Pulp & Paper

基　　金：国家"十一五"科技支撑计划项目(2006BAD32B05-2)

摘　　要：对杨木APMP浆的打浆性能进行了研究。结果发现,杨木APMP浆在制浆过程中,纤维细胞主要在胞间层发生分离,成浆后纤维细胞形态较完整,纤维挺硬。在打浆过程中杨木APMP浆纤维基本上不发生吸水润胀、细纤维化,而易发生断裂及碎片化。成纸的裂断长随着打浆度升高而增加,这主要是由于APMP浆在打浆过程中产生了大量的纤维碎片,这些碎片在纸张的纤维与纤维之间起到了架桥连接作用,产生了大量的氢键结合。纸张的撕裂度则随着打浆度升高先增加,在打浆度61°SR左右时才出现下降,这表明影响APMP浆撕裂度的第一要素是纤维结合力,其次才是纤维平均长度。成纸的紧度随着打浆度的升高而增大。不透明度则随着打浆度的升高而缓慢降低,但降低的幅度很小。The refining performances of poplar APMP were investigated. The result showed that fibers were mainly separated from lamella during refining, and the fibers were stiff. During the refining process, the APMP fibers did not swell and split, however, the fibers were easily broken and the fine pieces were produced. The tensile index increased as the beating degree raised, which was due to a lot of hydrogen bonds formed between fibers and fine pieces. The tear index increased as the beating degree raised, and it reached maximum when the beat- ing degree was about 61°SR, then it began to decrease. It indicated that the bonds between the fibers were the main factor affecting the tear index, and then the fibers＇ length was the second. The density increased and the opacity decreased a little as the beating degree raised.

关 键 词：APMP浆 打浆 纤维形态 物理性能 

分 类 号：TS743[轻工技术与工程—制浆造纸工程]