NINGBO INNO PHARMCHEM CO.,LTD. is proud to offer PolyDADMAC, a high-performance cationic polymer that is a cornerstone of modern water purification techniques. Understanding the underlying mechanisms by which PolyDADMAC operates is key to appreciating its efficacy in charge neutralization and the effective removal of organic matter from water sources.

At its core, PolyDADMAC is a polyelectrolyte characterized by a high density of positive charges along its polymer backbone. This strong cationicity is fundamental to its primary function: charge neutralization. In natural water sources and wastewater, suspended particles, colloids, and dissolved organic substances often carry negative surface charges. These negative charges create repulsive forces that keep particles dispersed, leading to turbidity and poor water clarity.

When PolyDADMAC is introduced into such water, its positively charged quaternary ammonium groups readily interact with these negatively charged sites. This interaction effectively neutralizes the electrostatic repulsion between particles. The process is rapid and efficient, causing the destabilization of the colloidal system. This initial destabilization is the critical first step in the coagulation process.

Beyond simple charge neutralization, PolyDADMAC also leverages the adsorption bridging mechanism. The long, flexible polymer chains can adsorb onto multiple destabilized particles simultaneously. As these chains adsorb, they effectively bridge between adjacent particles, drawing them together and forming larger, more compact agglomerates known as flocs. This bridging action significantly enhances the settling velocity of these impurities.

A particularly valuable capability of PolyDADMAC is its effectiveness in removing natural organic matter (NOM), such as humic and fulvic acids. These complex organic molecules contribute significantly to water color and are precursors to potentially harmful disinfection byproducts (DBPs) when water is chlorinated. PolyDADMAC's cationic nature allows it to complex with these anionic organic substances, effectively removing them from the water during the flocculation and sedimentation stages. This capability is vital for producing high-quality drinking water and reducing the formation of DBPs.

The efficiency of these mechanisms—charge neutralization and adsorption bridging—makes PolyDADMAC a superior choice for a wide array of water treatment applications, including drinking water purification and the treatment of challenging industrial effluents. NINGBO INNO PHARMCHEM CO.,LTD. provides PolyDADMAC that is optimized to ensure maximum performance in these critical water purification processes. Our commitment is to provide solutions that enhance water quality through a deep understanding of chemical mechanisms.