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考察了W/O型和W/W型阳离子聚丙烯酰胺(CPAM)/膨润土体系对漂白针叶木浆和杨木APMP浆滤水和留着性能的影响。结果表明,在漂白针叶木浆中,W/W型CPAM单元体系助留助滤效果较好;在杨木APMP浆中,电荷密度较高的W/O型CPAM单元体系助留助滤效果较好;当W/O型CPAM用量为0.03%时,杨木APMP浆滤水速度和总留着率分别提高32.4%和20.2%。CPAM与膨润土组成的微粒体系可进一步提高漂白针叶木浆滤水和留着性能,但提高杨木APMP浆滤水和留着效果不明显。
The effects of W / O type and W / W type cationic polyacrylamide (CPAM) / bentonite system on drainage and retention of bleached softwood and poplar APMP were investigated. The results showed that W / W type CPAM unit system bleached and bleached softwood pulp had a better retention and retention effect. Compared with poplar APMP pulp, W / O type CPAM unit system with higher charge density Good; When the W / O type CPAM dosage of 0.03%, APMP pulp poplar water filtration rate and the total retention rate increased by 32.4% and 20.2%. The microparticulate system composed of CPAM and bentonite can further improve the drainage and retention performance of bleached softwood pulp, but the effect of improving the filtration and retention of poplar APMP pulp is not obvious.