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- Model HPMA - Hydrolyzed Polymaleic ...
Model HPMA -Hydrolyzed Polymaleic Anhydride
Hydrotyzed potymaleic anhydride is a low molecular weight polymeride, with average molecular weight 400-800. No toxicity, soluble in water, high chemical and thermal stability, decomposed temperature above 330*C. Hydrolyzed poly maleic anhydride has an obvious threshold effect under high temperature (350aC) and high pH(8.3) level, suitable to be used in the alkaline water system or built with agents.
It has good scale inhibition against carbonate and phosphate scales under temperature 300*C with effective time as long as 100 hours. Due to its good scale inhibition and high-temperature tolerance properties, polymaleic acid is widely used in desalination plant of flash vaporization equipment, low-pressure boiler, steam locomotive, crude oil evaporation, petroleum pipeline, and industrial circulating cool water systems.
In addition, hydrolyzedpolymaleic anhydride has good corrosion inhibition effect when used together with the zinc salt. Hydrolyzed poly maleic anhydride can also be used as additives for cement.
