打浆过程pH调控对浆料特性的影响研究  

The Effect of pH Adjustment During Beating Process on Pulp Properties

作　　者：董栓 邹家豪 张尊照 陈光照 丁欣 刘胜华 Dong Shuan;Zhou Jiahao;Zhang Zunzhao;Chen Guangzhao;Ding Xin;Liu Shenghua(International Paper&Sun Cartonboard Co.,Ltd.,Jining,Shandong 272100,China)

机构地区：[1]万国纸业太阳白卡纸有限公司,山东济宁272100

出　　处：《中华纸业》2023年第14期22-25,共4页China Pulp & Paper Industry

摘　　要：对化学针叶木浆和化学阔叶木浆打浆前进行pH调控,研究了pH值对浆料打浆度、纤维形态及手抄片内结合强度、耐折度等浆料特性的影响。结果表明:在pH4~6较强酸性和pH>9的较强碱性条件下打浆,两种纸浆的浆料性能变化趋势基本一致;在酸碱作用下,纸浆中的细小纤维含量降低,滤水性变好,但内结合力和耐折度则变差;在pH7~8.5的范围内打浆,可获得最好的打浆效果。The pH regulation was performed before the beating of chemical softwood pulp and chemical hardwood pulp.And the effect of the pulp beating pH on beating degree,fiber morphology,internal bonding strength and folding strength of hand-sheet was analyzed.The results show that the properties change of the two samples was similar.The pulp filtration property became better since fines content decreased at higher acid or alkaline condition.What’s more,internal bonding strength and folding strength were also decreased at lower pH or higher pH.The best beating effect were gained in the range of pH 7-8.5.

关 键 词：打浆 PH值 打浆度 纤维形态 强度指标 

分 类 号：TS752[轻工技术与工程—制浆造纸工程] TS734.1