Adsorption kinetics of cationic polyacrylamide onto
If a physical transport step is important in the adsorption of cationic polyacrylamide onto cellulose fiber then agitation, by reducing the resistance to molecular transfer, should result in an increased sorption of the polymer. This is found to be the case in the adsorption of cationic polyacrylamide onto cellulose fiber.
The maximum adsorption capacities were greater than some other reports, 1155.76 mg·g–1 for a BF internal concentration of 2000 mg·L–1 and 458.72 mg·g–1 for MG in theory. Kinetics and thermodynamics were adopted to explain in-depth information associated with the adsorption process. The adsorption processes of dyes were both feasib...
Adsorption of cationic polyacrylamides on cellulose
Adsorption onto cellulose fibers (10 g/l) at an addition of 1% of PAM II versus time at different temperatures. X = 25, = 40, A = 55. used in the adsorption experiments. After the addition of different amounts of PAM B the mobility of the fines was measured at different times.
With a silica surface, an increase in the ionic strength leads to a continuous increase in the adsorption. On a cellulose fiber, the adsorption increases at low ionic strength (1–10 mM NaCl) and
Effects of cationic starch in the presence of cellulose
The effects of widely available bio-based additives, cellulose nanofibrils (CNFs) (0.1, 0.5, 1, and 2 wt%, based on dry weight of pulp) in combination with high degree of substitution cationic starch (CS) (0.2, 0.4, and 0.6 wt%, based on dry weight of pulp) on the structural, optical and strength properties of handsheet paper made from soda bagasse pulp were studied.
Tanaka H, Odberg L, Wagberg L, Lindstrom T (1990) Adsorption of cationic polyacrylamide onto monodisperses polystyrene lattices and cellulose fiber—effect of molecular-weight and charge-density of cationic polyacrylamides. J Colloid Interface Sci 13:219–228. Article;
Adsorption of Cationic Cellulose Derivatives/Anionic
The effect of the anionic surfactant SDS (sodium dodecyl sulfate) on the adsorption behaviors of cationic hydroxyethyl celluloses (Polymer JR-125, JR-400, and JR-30M) and hydrophobically modified cationic cellulose (Quatrisoft LM-200) at silica surfaces in the presence of a 10 mM NaCl solution has been investigated by null ellipsometry.
Adsorption of cationic polyacrylamide at the cellulose-liquid interface: A neutron reflectometry study Jielong Su, Christopher J. Garvey, Stephen Holt, Rico F. Tabor, Bjorn Winther Jensen, Warren Batchelor, Gil Garnier
Adsorption of cationic polyacrylamide at the cellulose
title = "Adsorption of cationic polyacrylamide at the cellulose-liquid interface: a neutron reflectometry study", abstract = "The layer thickness and density of high molecular weight cationic polyacrylamide (CPAM) adsorbed at the cellulose-water interface was quantified by neutron reflectometry.
I. Solberg, D., Wågberg, L., Adsorption and flocculation behavior of cationic polyacrylamide and colloidal silica, Colloids and Surfaces 219 (2003) 161 II. Solberg, D., Wågberg, L., On the mechanism of cationic-polyacrylamide-induced flocculation and re-dispersion of a pulp fiber dispersion, Nord. Pulp. Paper Res. J. 18(1) (2003) 51
Cationic Polyacrylamide induced nanoparticles assembly
Our aim is to evaluate the effect of high molecular weight (13 MDa) cationic polyacrylamide (CPAM) charge and dosage on SiO2 (74 nm) NP's assembly in cellulose nanofibers composites.
cellulase treatment efficiency is of practical interest. In the present study, the concept of using cationic polyacrylamide (CPAM) to enhance the cellulase treatment efficiency was demonstrated. The hypothesis was that the CPAM would attribute to the increased cellulase adsorption onto cellulose fibers based on the patching/ bridging mechanism.
