PERFORMANCE OF POPLAR AUTO-CATALYTIC ETHANOL LIGNIN-BASED RETENTION AND DRAINAGE AID OF DIFFERENT MOLECULAR WEIGHT
The poplar auto-catalytic ethanol lignin was fractionated into Mw<5 000,5 000 ~ 10 000,10 000 ~ 30 000, Mw>30000 four-level fraction by ultrafiltration, then the poplar auto-catalytic ethanol lignin of different relative molecular weight was grafted with acrylamide. The effect of different fractions on retention and filter was studied, at the same time, the structure of reaction product was analyzed through infrared spectrogram (IR). The results showed that the molecular weight of 5000 ~ 10000 poplar auto-catalytic lignin-based retention and drainage aid had better effect, when was added to the manufacturing stage, the paper ash content increased 8.21 percentage points, the filler retention rate increased 44.63 percentage points, and beating degree decreased 5.
poplar auto-catalytic ethanol lignin (PACEL) relative molecular weight (Mw) acrylamide retention and drainage aid
Chai Lin Zhou Jinghui Han Ying
Liaoning Provincial Key Laboratory of Pulp and Paper Engineering, Dalian Polytechnic University, Dalian,116034, China
国际会议
广州
英文
904-907
2010-11-08（万方平台首次上网日期，不代表论文的发表时间）