CPAM/膨润土体系中剪切力对细小纤维-碳酸钙共絮聚影响的研究  

The Effects of Shear force on Co-flocculation of Fines-calcium Carbonate in the System of CPAM/Bentonite

作　　者：任建晓[1] 林涛[1] 殷学风[1] 宋建伟[1] 李雪[1] 

机构地区：[1]陕西科技大学轻工与能源学院陕西省造纸技术及特种制品开发重点实验室陕西科技大学教育部轻化工助剂化学与技术重点实验室,陕西西安710021

出　　处：《造纸化学品》2013年第6期9-12,共4页Paper Chemicals

基　　金：陕西省教育厅科技项目（11JK0644）

摘　　要：以杨木P-RC APMP为原料,对其进行筛分,并对P-RC APMP细小纤维与轻质碳酸钙（PCC）进行共絮聚,研究了CPAM/膨润土微粒助留体系下,剪切力对细小纤维-PCC共絮聚团大小、颗粒结构的影响;结果表明：随着剪切力的增大,细小纤维-PCC絮聚团的尺寸不断减小;在高转速下,絮聚团虽然被打碎,但悬浮液中单独的白色颗粒很少（PCC）,体系中还是有许多小的絮聚体.Polar P-RC APMP pulp was chosen as raw material for fines generation and collecting, then the P-RC APMP fines and precipitated calcium carbonate（PCC） were co-flocculated to study effects of shear force on the size of fines-PCC co-floc, floe texture in the CPAM/Bentonite micro-particle retention system. The results shows that with the increasing of shear force, the size of fines-PCC floe is decreased constantly; although floe is broken at high speed, the separated white particles（PCC） in the suspension are rare, with many small floe remained in the system.

关 键 词：盘磨化学预处理碱性过氧化氢机械浆 阳离子聚丙烯酰胺 膨润土体系 剪切力 共絮聚 

分 类 号：TS727[轻工技术与工程—制浆造纸工程]