金属离子对杨木CTMP中溶解与胶体物质稳定性的影响  

The effect of metal ions on the stability of dissolved and colloidal substances released from aspen chemithermomechanical pulp

作　　者：苗庆显[1] 秦梦华[2] 陈礼辉[1] 黄六莲[1] 

机构地区：[1]福建农林大学材料工程学院,福建福州350002 [2]山东轻工业学院,山东济南250353

出　　处：《福建农林大学学报（自然科学版）》2010年第5期490-494,共5页Journal of Fujian Agriculture and Forestry University:Natural Science Edition

基　　金：福建省教育厅科技计划项目(JK2010016);山东省中青年科学家科研奖励基金资助项目(2006BS02017)

摘　　要：研究了Na+、Ca2+和Al3+及其和阳离子聚合物对杨木化学热磨机械浆(CTMP)中溶解与胶体物质(DCS)的稳定性影响.结果表明,金属离子使DCS的稳定性下降,而且价数越高,DCS失稳需要的用量越少.其中Al3+对DCS稳定性的影响还受到体系pH值和Al3+浓度的影响.一定含量的金属离子能促进阳离子聚合物对DCS的失稳作用.The effect of Na＋,Ca2＋,Al3＋ and cationic polymers on the stability of dissolved and colloidal substances（DCS） released from aspen chemithermomechanical pulp（CTMP） was investigated.The results showed the existence of metal ions led to the decrease of stability of DCS.The higher of the valence,the less of the dosage which led to the destability of DCS.In addition,the concentration of Al3＋ and the pH also affected the destabilizing ability of Al3＋ on DCS.Metal ions could promote the destabilizing ability of cationic polymers.

关 键 词：金属离子 杨木 溶解与胶体物质 

分 类 号：TS743.3[轻工技术与工程—制浆造纸工程]