Are polyacrylamides a strength additive?

polyacrylamides (gPAMs) have a long history as strength additives in papermaking dat-ing back to the first published description of the material in 1957 and the first granted patent in 1971 . In the ensuing decades, gPAMs found broad use as dry strength and temporary wet strength additives in commer-cial papermaking.

What is polyacrylamide used for?

Polyacrylamides have wide range of industrial applications as well as paper industry. They are applied mainly as clarifiers, retention and paper strengthening agents.

Can a water soluble polyacrylamide (Paa) be synthesised using Fourier transform infra-red?

During the synthesis, the obtained products were characterized by Fourier transform infra-red spectroscopy. The tests showed that a water soluble aminated polyacrylamide (PAa) with desired storage stability could be obtained by reaction between polyacrylamide and ethylenediamine (ETD) under the conditions of 50-60°C for 24-25 h.

Which polymer is used in the papermaking industry?

PAM and GPAM are two commonly used synthetic polymers in the papermaking industry as wet-strength agents . PAM is a water-soluble linear polymer synthesized from acrylamide monomers and is widely used as a flocculant, dispersant, and binder. … PDF | Polyacrylamides have wide range of industrial applications as well as paper industry.

Can glyoxalated polyacryamide be used as a wet strength resin?

In this research we synthesized a series of wet strength resins based on glyoxalated polyacryamide (GPAM) under different reaction conditions using acrylamide, ethylenediamine and glyoxal as the main materials and their effects on wet and dry-strength papers was investigated.

What is glyoxalated polyacryamide?

glyoxalated polyacryamide. industry. They are applied mainly as clariers, retention and paper strengthening agents. In this research we synthesized a series of wet strength resins based wet and dry-strength papers was investigated. The properties of the polymers were wet-strength resin.