Breakthrough Achieved in the Development of Novel Green Scale Inhibitor: Phosphate-Free Formula Achieves High-Efficiency Scale Inhibition

The latest research utilizes natural pullulan as a backbone to synthesize a phosphorus-free green scale inhibitor, PU-PAA, through graft copolymerization. This inhibitor achieves a scale inhibition rate exceeding 90% for calcium phosphate and 87.2% for calcium sulfate, while also possessing iron oxide dispersion capabilities, providing a new environmentally friendly solution for industrial circulating water treatment.

In industrial circulating cooling water systems, calcium salt scaling and corrosion product deposition reduce heat exchange efficiency and increase energy consumption. Traditional scale inhibitors are mostly phosphorus-containing formulations, posing environmental risks and treatment burdens. The latest research utilizes natural pullulan as a green polymer backbone and synthesizes the phosphorus-free and environmentally friendly scale inhibitor PU-PAA through aqueous phase free radical graft copolymerization.