SYNTHESIS OF PDADMAC AND ITS APPLICATION IN WET-END

摘要

The Poly-diallyldimethylammonium chloride (PDADMAC) was synthesized. The results showed that the PDADMAC has 6.16 meq/g charge density, 10×104 molecular weight (Mv) and [η]=1.12×10-4 Mv0.82.The applying experimental results confirm that the PDADMAC has excellent anionic trash catcher (ATC). In this paper, the change of drainability contained dissolved and colloidal substance (DCS), the effect on sheet properties, and the environmental suitability and also the CPAM efficiency were investigated at adding the PDADMAC fore-and-aft. The results shown that catching effect of home made PDADMAC on DCS was obvious, the affect of the change of pH valve on effect of PDADMAC was small and had good salt resistance, also had best synergetic effect on aids and improvement function on sheet properties, PDADMAC having high molecular weight has better catch effect.