As is well known, polyacrylamide is roughly divided into three major categories based on its charging characteristics: anionic, cationic and nonionic. Their appearance is all white powder or white granular. It is impossible for us to determine which type of polyacrylamide it is just by its appearance. Now, I will share how to distinguish the model of Polyakrylamid genom ett enkelt sätt .
1. Att döma utifrån upplösningstiden
Den fullständiga upplösningstiden för olika typer av polyakrylamid i vatten är inte heller samma . anjonisk polyakrylamid ... Nonjonisk polyakrylamid 2. Bestäm genom att testa pH -värdet By testing the pH value of the polyacrylamide aqueous solution, as the acidity and alkalinity of different types of polyacrylamide vary, the performance of polyacrylamide can be identified through this method. However, due to the different production processes of various manufacturers, there may be slight deviations. The pH value can be determined through the production process for judgment. 3. Metoden för blandad tillägg Those who frequently come into contact with polyacrylamide are probably well aware that the anionic and cationic ionic types cannot be mixed for use. Mixing and adding them together will cause a reaction effect. Due to the contact of positive and negative charges, a cotton-like substance will be formed, and the liquid will become cloudy and unclear. So this method can also be used for Dom . Om du vill vara säker kan du be tillverkaren att ge ett tydligt testresultat . 4. Domare genom avloppstestning The classification of different polyacrylamides can be clearly determined by their adaptability in wastewater. Generally, anionic polyacrylamide is suitable for suspensions with high concentration and positive charge, and the PH value is neutral or alkaline. Cationic polyacrylamide is suitable for suspensions with negative charges. Nonionic Polyakrylamid är lämplig för suspensioner i ett blandat tillstånd av organiska och oorganiska ämnen, med ett pH -värde av neutralt eller surt .
