ISSN 1070-4272, Russian Journal of Applied Chemistry, 2014, Vol. 87, No. 8, pp. 1119−1125. © Pleiades Publishing, Ltd., 2014.
Original Russian Text © E.V. Bryuzgin, V.V. Klimov, O.V. Dvoretskaya, L.D. Man’, A.V. Navrotskiy, I.A. Novakov, 2014, published in Zhurnal Prikladnoi Khimii,
2014, Vol. 87, No. 8, pp. 1139−1146.
AND POLYMERIC MATERIALS
Hydrophobization of Cellulose-Containing Materials
with Fluoroacrylic Polymers and Fatty Carboxylic Acids
E. V. Bryuzgin, V. V. Klimov, O. V. Dvoretskaya, L. D. Man’, A. V. Navrotskiy, and I. A. Novakov
Volgograd State Technical University, pr. im. Lenina 28, Volgograd, 400005 Russia
Received July 22, 2014
Abstract—The possibility of preparing highly hydrophobic and superhydrophobic coatings on the surface of
cellulose-containing materials using ﬂ uorinated methacrylic polymers and fatty carboxylic acids was demonstrated.
Contact angles of up to 156° and 158°, respectively, were reached.
Cellulose is a biopolymer used as a base of many
materials and items owing to such unique properties is
high strength, biocompatibility, and biodegradability. In
addition, cellulose-containing materials are environmen-
tally safe, nontoxic, and widely occurring because their
resources are renewable .
A wide range of cellulose-based innovation materials
with special properties for use in various branches of sci-
ence, engineering, and medicine are being developed now.
A topical direction is the development of materials and
items for textile industry with superhydrophobic proper-
ties . It is anticipated that superhydrophobic textile
materials will be capable of self-cleaning similarly to su-
perhydrophobic lotus leaves, which will lead to detergent
saving, reduction of the volume of surfactant-containing
wastewaters, and labor saving. In addition, modiﬁ cation of
the surface of cellulose-containing materials can impart to
them a number of other valuable properties, e.g., resistance
to biofouling, ﬂ ame resistance, sensitivity to temperature
variations, and antistatic properties [3, 4].
Textile materials with hydrophobic coatings are used
in production of rain clothes, antiadhesion bandages, and
dirt-repelling work outﬁ t . To impart water-repelling
properties, a fabric is impregnated with various types
of hydrophobizing agents: fluorinated organosilicon
compounds and polymers, parafﬁ n hydrocarbons [6, 7].
Fluorinated polymers are of most interest owing to their
unique properties such as high levels of thermal, chemi-
cal, and atmosphere resistance, low inﬂ ammability, and
low values of the friction coefficient and dielectric
constant. Furthermore, ﬂ uorinated materials have low
surface energy, which is the necessary condition for the
development of hydrophobic and oleophobic materials
. However, ﬂ uorinated polymers are insoluble in water
and in a number of organic solvents. Therefore, they are
applied from emulsions and dispersions, which leads to
insufﬁ cient stability of such coatings: The polymer layers
are readily washed out in the course of laundering and
dry cleaning and are worn off in the course of using the
fabrics . Therefore, to ensure uniform impregnation
and adhesion interaction, modiﬁ cation of the surface of
cellulose materials with solutions of ﬂ uoromethacrylic
polymers is suggested.
Fatty carboxylic acids with long hydrocarbon radicals
can be an alternative to ﬂ uorinated polymers. Interest in
such low-molecular-weight modiﬁ ers with hydrophobic
groups is due to their availability, cheapness, and suit-
ability for preparing waterproof textile materials resistant
to contaminants . However, direct reaction of car-
boxylic acids with hydroxy groups of cellulose seems to
be hardly probable and inefﬁ cient for preparing a stable
superhydrophobic coating. The problem can be solved
by using anchor compounds (e.g., epoxy compounds) ef-
ﬁ ciently reacting with hydroxy groups. We suggest using