Ultra-high molecular weight anionic polyacrylamide and preparation method therefor

• Main Authors: XIAO JINSONG, ZHAO XINGJUN, ZHANG GUANZHOU, ZHANG YOUQIANG, LI JING, HU YUGUO, LIANG HAICHEN
• Format: Patent
• Language: Chinese; English
• Published: 09.04.2014
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

The invention provides an ultra-high molecular weight anionic polyacrylamide. The ultra-high molecular weight anionic polyacrylamide is composed of ingredients with the following concentrations, 20%-25% of polyacrylamide, 2.0-2.5 g/L of TB-2000, 0.01-0.013 g/L of potassium persulphate, 0.009-0.011 g/L of sodium hydrogen sulfite, 2.4-5.0 g/L of tackifiers, 1.2-2.0 g/L of cosolvents, 0.016-0.024 g/L of sodium potassium acid, 0.035-0.055 g/L of EDTA, and 30-40 g/L of sodium carbonate. The invention provides a preparation method for the ultra-high molecular weight anionic polyacrylamide. The preparation method has special technological processes and technological parameters. The beneficial effects are that, the molecular weight of the product is high, the water solubility is high, the production technology is simplified, and the production cost is lowered.