氧化淀粉/PVAm复合物对漂白芦苇化学浆的助留助滤作用  

Application of Oxidized Starch/PVAm Complexes as Retention and Drainage Aids to Bleached Reed pulp

作　　者：陈少平[1] 吴宗华[1] 凌永泰[1] 王毓[1] 

机构地区：[1]福建师范大学化学与材料学院,福建福州350007

出　　处：《中国造纸学报》2005年第1期142-144,共3页Transactions of China Pulp and Paper

基　　金：福建省科技厅国际合作项目(2002I024);福建省自然科学基金重点项目(D9920002)。

摘　　要：研究了氧化淀粉/聚乙烯胺(PVAm)复合物对漂白芦苇化学浆的助留助滤作用。结果表明,氧化淀粉与PVAm的质量比为1∶2的复合物(SP0.5)具有良好的助留助滤效果;当其用量为0.2%时,芦苇浆的留着率由添加复合物前的78.0%提高到87.5%,打浆度由55°SR降低到22°SR,相应的滤水时间由200s缩短到100s;当其添加量在0.2%～0.6%的范围内时,SP0.5在浆上的吸附率大于95%。The effects of the complexes of oxidized starch and polyvinylamine on retention and drainage of bleached reed chemical pulp were investigated. The results illustrated that the complex (SP-0.5) with 1 : 2 of mass ratio of the oxidized starch and the polyvinylamine greatly increased retention and drainage of the pulp. The retention of the pulp increased from 78% to 87.5%, and the beating degree and drainage time decreased from 55°SR and 200 s to 22°SR and 100 s respectively at a complex dosage of 0.2%. The retention of SP-0.5 in the pulp was nearly 100% at a dosage of less than 0.6%.

关 键 词：助留助滤作用 氧化淀粉 复合物 化学浆 漂白 助留助滤效果 聚乙烯胺 质量比 留着率 芦苇浆 打浆度 添加量 吸附率 SR 滤水 

分 类 号：TS727[轻工技术与工程—制浆造纸工程] TQ432.2[化学工程]