AND POLYMERIC MATERIALS
Russian Journal of Applied Chemistry, 2011, Vol. 84, No. 12, pp. 2137−2140.
Pleiades Publishing, Ltd., 2011.
Original Russian Text © S.Yu. Vavilova, S.A. Chulovskaya, S.M. Kuz’min, N.P. Prorokova, V.I. Parfenyuk, 2011, published in Zhurnal Prikladnoi Khimii,
2011, Vol. 84, No. 12, pp. 2053−2057.
A New Composite Polypropylene Material
with Improved Physicochemical and Consumer Properties
S. Yu. Vavilova, S. A. Chulovskaya, S. M. Kuz’min,
N. P. Prorokova, and V. I. Parfenyuk
Institute of Solution Chemistry, Russian Academy of Sciences, Ivanovo, Russia
Received February 3, 2011
Abstract—A new composite material, polypropylene threads ﬁ lled with nanosized copper powder, was prepared.
The material exhibits decreased electrical resistivity.
Polypropylene threads (PPTs) occupy a leading posi-
tion in Russia among synthetic threads with respect to
both production and consumption . This is due to ready
availability of the raw materials, simple processes of
polymer synthesis and thread forming, and high consumer
properties of the ready thread: low speciﬁ c porosity,
high strength, elasticity, and wick effect. However, like
the majority of synthetic materials, polypropylene items
show strong tendency to electriﬁ cation, which gives rise
to problems in reprocessing of ﬁ brous polypropylene
materials and to consumer discomfort in use.
Traditionally, to decrease the electrical resistivity,
synthetic ﬁ brous materials are treated with special agents,
antistatics. Any substances applied onto the surface of
polypropylene thread are removed relatively rapidly
owing to friction in the course of use. Regular treatment
of ready items with an antistatic is labor-consuming and
expensive. In bulk modiﬁ cation of polymers, new prop-
erties are retained throughout the period of use, and no
additional treatments in the course of use are required.
One of the ways to enhance the electrical conductiv-
ity of polymeric materials, including synthetic threads,
is introduction into their composition of metal nanopar-
ticles  and preparation of a composite material with
new properties, including electrophysical characteristics.
Metal powder particles can be readily introduced
into PPTs in the steps of their forming from a melt. The
ﬁ ller should meet a number of stringent requirements
: It should not release gaseous or chemically active
substances at the forming temperature (220–280°С),
should be chemically inert, and should not react with the
polymer melt; powder particles should not aggregate in
polypropylene melt, should be well wetted by the polymer
melt, and should exhibit high adhesion to it . These
requirements are met by nanosized copper-containing
powder (NCP) prepared by electrochemical cathodic
reduction from aqueous-organic electrolyte solutions .
The goal of this study was to prepare polypropylene
threads modified with nanosized copper-containing
powders and exhibiting decreased electrical resistivity and
to evaluate the physicochemical and physicomechanical
properties of the new composite material.
The PPTs were formed on an SFPV-1 installation
for forming polymer ﬁ bers (Fig. 1). The installation
consists of automated process control panel 1, extruder
2 in which the polymer is melted, die 3 with 24 holes
oriﬁ ces 0.25 mm in diameter for forming jets 4 from the
melt, forming discs 5, and receiver 6 for winding ready
threads onto a reel. The temperature of the extruder zones