ISSN 1070-4272, Russian Journal of Applied Chemistry, 2014, Vol. 87, No. 3, pp. 355−359. © Pleiades Publishing, Ltd., 2014.
Original Russian Text © Zh.B. Ospanova, K.B. Musabekov, M.M. Asadov, 2014, published in Zhurnal Prikladnoi Khimii, 2014, Vol. 87, No. 3, pp. 393−397.
AND POLYMERIC MATERIALS
An Effect of Surfactants of Different Nature on Stabilization
of Foaming Systems Containing Polyvinyl Alcohol
Zh. B. Ospanova
, K. B. Musabekov
, and M. M. Asadov
Al-Farabi Kazakh National University, pr. Al-Farabi 71, Almaty, Kazakhstan
Institute of Chemical Problems, Azerbaijan National Academy of Sciences,
H. Javid pr. 113, Baku, Az1143 Azerbaijan
Received January 29, 2014
Abstract—The laws of the foam stabilization by mixtures of surfactant of different nature: sodium dodecyl sulfate
Na and cetyltrimethylammonium bromide C
Br with a nonionic polymer, polyvinyl
alcohol were established. High stability of foams from mixtures of surfactant
polyvinyl alcohol compared with
the individual components can be related to the formation of mixed structured layers of surface active associates
of polyvinyl alcohol with surfactant contributing to thickening of foam ﬁ lms.
Foams are widely used in ﬁ re ﬁ ghting, construction
materials manufacturing, food industry, petroleum en-
gineering, enrichment of ore by ﬂ otation, chemical and
biochemical processes. Stabilization of foam by mixtures
of low molecular weight surfactants with water-soluble
polymers is of particular interest . Synthetic water-
soluble polymers forming strong structured adsorption
layers in foam ﬁ lms improve their stability . Results
of the study of foam-stabilizing effect of surfactants–
polyvinyl alcohol associates are the basis for producing
composite foaming agents using commercially available
surfactants and polymers required for various ﬁ elds of
the industry .
The aim of the work was determining laws of foam-
fect of surfactant mixtures of different
nature: anionic [sodium dodecyl sulfate (SDS)] and
cationic [cetyltrimethylammonium bromide (CTAB)]
with polyvinyl alcohol (PVA).
Sodium dodecyl sulfate C
Na (CMC 8.3 ×
M), cetyltrimethylammonium bromide
Br (CMC 9.2 × 10
M), cationic surfac-
tant, from Fluka (Germany), and nonionic polymer,
polyvinyl alcohol with a molecular weight M
= 1–2.6 ×
(Alfa Aesar, Germany) were used as objects of
The foam was prepared by bubbling air for 1 min
through the porous ﬁ lter (porosity of 40–100 μm) in
10 mL of solutions of surfactants and mixtures thereof
with PVA . The volume and time of foam breakdown
were calculated as an average of three measurements of
not more than 10% divergence.
The kinetics of the foam breakdown was determined
by a rate of decrease in the foam volume over time.
A foam multiplicity was evaluated by the foam volume
obtained from volume unity of the foaming solution.
Measurement of a capillary pressure in Plato–Gibbs
channels was performed according to technique
described in . Surface tension of aqueous solutions of
PVA, surfactants, and mixtures thereof was measured by
a submerged Wilhelmy plate using a platinum plate .
All experiments were performed at room temperature.
RESULTS AND DISCUSSION
The problem of obtaining highly stable foams at low
consumption of foaming agents is of interest to many