Zur Kenntnis der Zusammenhänge zwischen Adsorption und Waschwirkung von Tensiden

Schwuger, M. J.

doi:10.1002/cite.330431204

Cited by 5 publications

(2 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This can be deduced from the higher values of the change in free energy of adsorption per carbon atom in the hydrophobic part, by which the influence of the A deduction is made about the importance of adsorption onto kaolin by washing experiments with soilings that were prepared with and without kaolin. Sodium n-pentadecylsulfate and sodium ~-sulfo palmitic acid methylester, 2 comparable compounds with regard to the hydrophobic parts, show equal detergency toward soilings without kaolin (3). When kaolin is a component of the soiling, the reflectances of the textiles after washings with the ester are substantially lower than those for the sulfate (Table 11).…”

Section: Evidence Of the Importance Of Surfactant Adsorption To The Wmentioning

confidence: 98%

“…Sodium n-pentadecylsulfate and sodium ~-sulfo palmitic acid methylester, 2 comparable compounds with regard to the hydrophobic parts, show equal detergency toward soilings without kaolin (3). Sodium n-pentadecylsulfate and sodium ~-sulfo palmitic acid methylester, 2 comparable compounds with regard to the hydrophobic parts, show equal detergency toward soilings without kaolin (3).…”

Section: Evidence Of the Importance Of Surfactant Adsorption To The Wmentioning

confidence: 99%

See 1 more Smart Citation

Effects of adsorption on detergency phenomena: I

Schwuger

1982

J Americ Oil Chem Soc

Self Cite

View full text Add to dashboard Cite

Knowledge of the adsorption of surface-active substances onto different interfaces is of basic importance for its technical application in washing and cleaning processes. Important parameters are adsorption kinetics and adsorption equilibria. The criteria of adsorption kinetics and adsorption equilibrium change in opposite directions with increasing length of the hydrophobie group. Equilibrium adsorption increases exponentially, whereas the diffusion coefficient decreases linearly with increasing number of CH2 groups in the n-aikyl part of nonbranched surfactants. Branching of the hydrophobic group has the same effect as shortening the chain length. The wetting effect changes in the same direction as the diffusion coefficient, whereas the washing effect changes similarly to equilibrium adsorption. The generally positive temperature effect on soil removal may be reversed in the opposite direction for nonionic surfactants at temperatures above the cloud point. Separation of phases brings about a decrease of adsorption and washing performance.

show abstract

Section: Evidence Of the Importance Of Surfactant Adsorption To The Wmentioning

confidence: 98%

Section: Evidence Of the Importance Of Surfactant Adsorption To The Wmentioning

confidence: 99%