麦草浆DEP漂白中添加酸碱缓冲剂对纸浆性能的影响  

Effect of Adding Acid-Base Buffer During Wheat Straw Pulp DEP Bleaching on the Pulp Properties

作　　者：李清林[1] 韩卿[1] 王伦[1] 侯广强[1] 

机构地区：[1]陕西科技大学造纸工程学院,陕西西安710021

出　　处：《造纸科学与技术》2011年第6期21-24,共4页Paper Science & Technology

摘　　要：采用DEP短序工艺漂白麦草浆,分别研究了在D段和P段加入酸碱缓冲剂控制浆料体系的pH值,使漂液充分发挥作用,在不影响漂白效果的前提下,达到减少漂液用量的目的。SEM观察表明,纸浆在D段/P段漂白时添加酸碱缓冲剂,纤维受损程度减弱。DEP short sequence was used to bleach wheat straw pulp, the acid-base buffers were added in chorine dioxide and peroxide bleaching stages respectively in order to control the pH in the slurry system. Through this, the bleaching results improved and the chemical dosage reduced. SEM observation of the sheet made with wheat straw pulp revealed that the level of fiber damage was reduced in the process of ClO2E bleaching and H2O2 bleaching by adding the acid-base buffer.

关 键 词：酸碱缓冲剂 漂白 木素降解 CLO2漂白 H2O2漂白 

分 类 号：TS745[轻工技术与工程—制浆造纸工程]