NINGBO INNO PHARMCHEM CO.,LTD. delves into the underlying chemistry of PolyDADMAC, explaining the scientific principles that make it such an effective agent in water treatment. Understanding the molecular behavior of this polymer is key to appreciating its performance in purifying water and managing wastewater.

PolyDADMAC, or polydimethyl diallyl ammonium chloride, is a synthetic polymer characterized by its high charge density cationic nature. The polymer chain is studded with quaternary ammonium groups, which carry a permanent positive charge. This positive charge is the primary driver of its efficacy in water treatment. When introduced into water containing negatively charged impurities – such as suspended solids, colloids, and organic molecules – the positively charged PolyDADMAC molecules are strongly attracted to these impurities through electrostatic forces. This process is often referred to as 'charge neutralization' or 'electro-neutralization'.

The electrostatic attraction causes the destabilization of these dispersed particles, which would otherwise remain suspended due to repulsive forces. As the PolyDADMAC molecules bind to the impurities, they form larger aggregates or 'flocs'. This bridging mechanism, where long polymer chains link multiple particles together, is a crucial aspect of flocculation. The larger flocs formed are more amenable to physical removal processes like sedimentation, filtration, or centrifugation. This efficient aggregation dramatically reduces turbidity and removes color from the water.

While electrostatic attraction and bridging are the primary mechanisms, PolyDADMAC can also contribute through adsorption, where impurities physically adhere to the polymer chain. The specific dominance of each mechanism can depend on the water chemistry and the characteristics of the impurities present. The high water solubility of PolyDADMAC ensures that it can be readily dispersed and interact effectively with contaminants throughout the water body. NINGBO INNO PHARMCHEM CO.,LTD. supplies PolyDADMAC that leverages these fundamental chemical properties to deliver optimal water treatment outcomes, supporting cleaner water initiatives globally.