TY - JOUR
T1 - Use of polysaccharide based surfactants to stabilize organically modified clay particles aqueous dispersion
AU - Kurečič, Manja
AU - Smole, Majda Sfiligoj
AU - Stana-Kleinschek, Karin
PY - 2013/4/15
Y1 - 2013/4/15
N2 - Pure as well as organically modified clay minerals are widely applied particles in different research areas. For the incorporation of hydrophobic organically modified clay particles into the hydrogel matrix, a stable aqueous dispersion must be prepared. In this article we report on the stabilization of aqueous dispersions of hydrophobic organically modified clay particles by using a non-ionic polysaccharide-based surfactant system-Inutec SP1 (based on chicory inulin). Different concentrations of surfactants were tested. Properties of the particulate surfactant-stabilized aqueous colloidal system were determined by electrophoretic mobility and dynamic light scattering measurements. Determination of contact angles gave us insight into the particles' surface interaction ability with water and also some information regarding the conformation of adsorbed surfactant molecules on the particle surface. By using Inutec SP1, the wettability of clay particles was improved, particle size was reduced and consequently, enhancement of their dispersion ability in water-based systems was observed.
AB - Pure as well as organically modified clay minerals are widely applied particles in different research areas. For the incorporation of hydrophobic organically modified clay particles into the hydrogel matrix, a stable aqueous dispersion must be prepared. In this article we report on the stabilization of aqueous dispersions of hydrophobic organically modified clay particles by using a non-ionic polysaccharide-based surfactant system-Inutec SP1 (based on chicory inulin). Different concentrations of surfactants were tested. Properties of the particulate surfactant-stabilized aqueous colloidal system were determined by electrophoretic mobility and dynamic light scattering measurements. Determination of contact angles gave us insight into the particles' surface interaction ability with water and also some information regarding the conformation of adsorbed surfactant molecules on the particle surface. By using Inutec SP1, the wettability of clay particles was improved, particle size was reduced and consequently, enhancement of their dispersion ability in water-based systems was observed.
KW - Contact angle
KW - Dispersion stability
KW - DLS
KW - Electrophoretic mobility
KW - Inutec SP1 surfactant
KW - Organically modified clay particles
UR - http://www.scopus.com/inward/record.url?scp=84874397984&partnerID=8YFLogxK
U2 - 10.1016/j.carbpol.2013.01.085
DO - 10.1016/j.carbpol.2013.01.085
M3 - Article
AN - SCOPUS:84874397984
SN - 0144-8617
VL - 94
SP - 687
EP - 694
JO - Carbohydrate Polymers
JF - Carbohydrate Polymers
IS - 1
ER -