Thermomechanical properties of CaCO3-latex pigment coatings: Impact of modified dispersing agents

Touaiti, Farid; Alam, Parvez; Nilsson, Robert; Pahlevan, Mahdi; Ansell, Martin P.; Wilén, Carl‐Eric; Toivakka, Martti

doi:10.1016/j.porgcoat.2012.10.026

Cited by 8 publications

(9 citation statements)

References 33 publications

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“…Explanation: 1 MA/ AA, 2 BA/AA, 3 MMA/AA, 4 MEA/AA, 5 EA/MAA, 6 MEA/ MAA. The full names of the thickeners are shown in Table 4 J Surfact Deterg (2014) 17:773-784 777 containing different quantities of pigment were prepared for one pigment and one stabilizing system [7][8][9].…”

Section: Methods Of Pigment Aqueous Dispersion Preparationmentioning

confidence: 99%

“…They enabled us to determine the so-called dispersion efficiency (W d , %) which reflects the ratio of the pigment quantity of the aqueous dispersion stable phase to the quantity of pigment used for preparation of the test. Ten samples containing different quantities of pigment were prepared for one pigment and one stabilizing system [ 7 – 9 ].…”

Section: Methodsmentioning

confidence: 99%

“…Progress in the production technology of paints is connected with scientific research in the field of colloidal dispersion systems. It has enabled the development of a new theoretical basis for the construction of dispersion systems and also the development of stable compositions obtained by dispergation of pigments and fillers in resin solutions or in aqueous dispersions of polymers [5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

“…The instability is the result of collision of particles caused by Brownian motion and convection leading to contact and agglomeration. Thus, the influence of surfactant structure on the dispersion stability is a crucial issue depending of three factors: a geometric barrier involving the preservation of the minimal distance between molecules of the stabilizer during the phases and a definite ratio between the polar and non-polar groups, an energy barrier defining the minimal deformation strength of the adsorption layer and a concentration barrier conditioning the presence of a saturated adsorption layer on the particle surface [9,[27][28][29].…”

Section: Introductionmentioning

confidence: 99%

“…The subject of sedimentary tests are aqueous dispersions of pigments stabilized by different surfactants and concentrators. The observation of the phenomena occurring and their interpretation will make it possible to determine the stability conditions of these systems [ 4 , 9 , 22 , 30 , 31 ].…”

Section: Introductionmentioning

confidence: 99%

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Research on the Influence of the Type of Surfactant and Concentrator in Aqueous Dispersion of Pigments

Makarewicz

Michalik

2013

J Surfact & Detergents

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This work reports tests performed to evaluate the stability of aqueous dispersions of inorganic oxide pigments with different specific surface areas, with the use of anionic and non-ionic surfactants and concentrators. Color mixtures of oxide compounds of blue, green, olive and brown with the unit cell spinel structure were used as pigments. The sodium salt of sulfosuccinic acid monoester, oxyethylenated nonylphenol and ethoxylated derivatives of lauryl alcohol, fatty alcohol and fatty amine were used as surfactants. The concentrators used were: poly(vinyl alcohol), the sodium salt of carboxymethyl cellulose as well as a water-based polyurethane oligomer. The highest dispersion efficiency was found for dispersed systems in which surfactant and concentrator were incorporated in the formula. The one containing the sodium salt of carboxymethyl cellulose or polyurethane oligomer with ethoxylated saturated fatty alcohol or fatty amine was found to be the most efficient. It was discovered that a higher dispersion efficiency corresponds to pigments with larger specific surface. The efficiency is also found to improve when the concentrator is an acrylic polymer or copolymer made up of two acrylic species. In this case, the concentrator interaction with the surfactant is more effective if the value of its boundary viscosity number is higher. This observation confirms the existence of interactions between macro-chains of the concentrator and surfactant molecules forming micelles with the pigment particles.

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Section: Methods Of Pigment Aqueous Dispersion Preparationmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%