Cationic polyacrylamide (CPAM) which was prepared through complex initiation system in laboratory and cationic polyacrylamide (Ciba) were used as retention and
Analysis on foulants shows that: the elements(except for C, H and O) in foulants formed during evaporating alkaline wheat straw black liquor are Si,Ca, K, Na, M
Paper coating has a viscoelastic character, which affected by dissolved polymer in the aqueous phase.The different thickeners have different effects on Paper Co
A mercaptan - containing resin, DMO- M, with high redox capacity- 6.00 mequiv / g, prepared by reacting mercaptoacetyl chloride with the aminophenol resin Duoli