Composition of Rosin Size Precipitate

Price, Donna

doi:10.1021/ie50453a017

Cited by 5 publications

(5 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Extractions of the wet precipitates reported in Table II were carried out on precipitate suspensions prepared in the standard manner (4). Instead of the usual procedure of filtering, washing, and drying the precipitate, the suspension was transferred to a separatory funnel and treated with the solvent.…”

Section: Behavior Of Size Precipitate Toward Various Solventsmentioning

confidence: 99%

See 1 more Smart Citation

Composition of Rosin Size Precipitates

Price¹

1948

Anal. Chem.

View full text Add to dashboard Cite

Section: Behavior Of Size Precipitate Toward Various Solventsmentioning

confidence: 99%

“…Formation of a small amount of aluminum monoresinate, which would be concentrated in the extraction residue. 4. Concentration of oxidized materials in the extraction residue.…”

Section: Behavior Of Size Precipitate Toward Various Solventsmentioning

confidence: 99%

Composition of Rosin Size Precipitates

Price¹

1948

Anal. Chem.

View full text Add to dashboard Cite

“…In the development of rosin sizing theories, two major approaches emerged for explaining sizing mechanisms : one school has proposed that the fiber surface is the site of the interaction of rosin with alum, the central step of the sizing reaction (7) ; while others proferred that these interactions occur in solution (8) and a resulting rosin-aluminium complex adsorbs on the fiber surfaces (9) . A rational resolution of these two proposals is at hand (4,10,11) .…”

mentioning

confidence: 99%

Sizing mechanisms and the effect of fillers

Marton

1985

Trans. Of the VIIIth Fund. Res. Symp. Oxford, 1985

View full text Add to dashboard Cite

The mechanism of sizing with soluble rosin soap size differs from the sizing mechanism of dispersed rosin acid size. Cationic fixing agent has to be used with the latter size to assure proper attachment of the size to furnish components. The problem of size attachment is not unlike that for the alkaline AKD size emulsion. The relative extent of attachment is assessed by a high shear stirring test. Sizing involves a complex array of interactions in which surface reactions play an important role. The large surface area fines and fillers in the furnish reduce sizing efficacy. Size accumulates on fillers/fines to a higher extent than expected from surface area alone. On the basis of experimentally determined adsorptivities, size distribution in a furnish can be estimated. Size on fiber appears to be more efficient than on fillers/fines, compared at equal surface coverage. This requires that we minimize the amount of fine particulates in the furnish. Fillers/fines capture a significant amount of applied size; thus, first pass fillers/fines retention has to be maximized to retain size in the sheet. Size distribution also can be affected by the proper choice of process conditions.

show abstract

“…and the compositions compared. The chemicals and experimental procedure used were described in the first paper of this series (8). As before, the term "alum" denotes papermakcrs' alum, essentially A^SO-Os.-18H»0.…”

mentioning

confidence: 99%

“…However, after 10-minute heating at 60°C ., both the color of precipitate 5 and the pH of its suspension changed, an indication of some physicochemical change from the form of control precipitate 1. The control material was prepared by the standardized procedure (8). The decrease of pH with heat is typical of aluminum salt solutions, and the color change is _ also shown by aluminum hydroxide.…”

mentioning

confidence: 99%

Composition of Rosin Size Precipitate: Effect of Heat and Oxidation on Composition

Price¹

1949

Ind. Eng. Chem.

View full text Add to dashboard Cite

Analyses of rosin size precipitates prepared at 25°and 60°C. showed a small difference in composition, explainable in terms of contamination of the precipitate made at the higher temperature with inorganic substances present at the time of its formation.Analyses of rosin size pre-cipitates prepared at 25°C. and of the same precipitates after aging for two and a half years at room temperature showed that the composition had changed in the following manner:an increase of 8 to 9% in oxygen, a decrease of 1 to 2% in carbon, and a decrease of 0.5% in hydrogen. ROSINsize does not impart water resistance to paper if the treatment is carried out under conditions which subject the wet size precipitate to heat over an appreciable time (3, 10).However, except for a statement by Neugebauer (/) that temperature has no effect on the size precipitate' ash, there is no information concerning the effect of heat on size precipitate composition.

show abstract

Composition of Rosin Size Precipitate

Cited by 5 publications

References 5 publications

Composition of Rosin Size Precipitates

Composition of Rosin Size Precipitates

Sizing mechanisms and the effect of fillers

Composition of Rosin Size Precipitate: Effect of Heat and Oxidation on Composition

Contact Info

Product

Resources

About