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.

What is nonionic polyacrylamide?

Nonionic polyacrylamide is homopolymer formed of acrylamide, with high purity, good soEubility. high molecular weight. This series of products are with high molecular weight polymer and liner polymer low ion degree. Because of its special groups, and endow it with flocculation and dispersion, thickening and bonding. film. gel. stable colloidal.

What is nonionic polyacrylamide (NPAM) gel?

Nonionic polyacrylamide (NPAM) gel was prepared for in-depth profile control. A compact three dimensional network structure was formed in the bulk gel system. Retention, adsorption and bridging across the pore throats occur in high permeability zones. The NPAM gel shows superior high temperature resistant. °C.

Are crosslinked polyacrylamide gels ionic or Nonhydrolyzed?

Crosslinked polyacrylamides, particularly when partially hydrolyzed to yield acrylic acid moieties, are superabsorbent gels and have been used in selected applications over the years. Nonhydrolyzed, and hence nonionic, polyacrylamide gels are used for electrophoresis media in biotechnology laboratories [72, 73].

What are Nonhydrolyzed polyacrylamide gels used for?

Nonhydrolyzed, and hence nonionic, polyacrylamide gels are used for electrophoresis media in biotechnology laboratories [72, 73]. Particulate polyacrylamide gels are useful in horticulture . Hydrolysis of polyacrylonitrile can yield first polyacrylamide and eventually some acrylic acid groups.

What is a polyacrylamide gel?

The polyacrylamide gel is a polymer matrix of acrylamide cross-linked by N,N-methylene-bis-acrylamide (known as bis-acrylamide) as the result of a polymerization reaction between them, induced by tetramethylenediamine (known as TEMED) and carried out by ammonium persulfate (known as APS).