Can nonionic polyacrylamide be used as a gel fracturing fluid?

Nonionic polyacrylamide (NPAM) with controlled molecular weight was successfully synthesized as a gel fracturing fluid by aqueous solution polymerization.

How is non ionic polyacrylamide produced?

Non-ionic polyacrylamide may be produced from its monomer by free radical polymerization using a wide variety of initiation methods.

How does non ionic polyacrylamide reduce settling time?

that the addition of 1 mg/l of non-ionic polyacrylamide reduces the settling time from 1230 seconds to about 90 seconds. This has an implication of reduction in the retention time in the settling tanks with corresponding savings in capital investment and producing cleaner water for the subsequent processes. 3. ANIONIC POLYACRYLAMIDE

Does non-ionic polyacrylamide improve floc settling time?

Tan et al. have studied the effect of non-ionic polyacrylamide as a coagulant aid on floc settling time for the removal of colouring matters form industrial dye wastewater. Non-ionic polyacrylamide is commonly used as a coagulant aid to improve the coagulation process and subsequently the floc settling velocity.

How do you prepare polyacrylamide with less than 1% Hydrolysis?

Polyacrylamide with less than 1% hydrolysis can be prepared by careful attention to the monomer concentration, pH, temperature and initiator, with a redox type being preferred . By far the predominant chemical family comprises those polymers which are derived from acrylamide monomer.

What is non ionic polyacrylamide used for?

Non-ionic polyacrylamide is commonly used as a coagulant aid to improve the coagulation process and subsequently the floc settling velocity. Higher settling velocity is desired so that the size of the settling tank can be reduced. The result shows