ISSN 1070-4272, Russian Journal of Applied Chemistry, 2016, Vol. 89, No. 9, pp. 1469−1476. © Pleiades Publishing, Ltd., 2016.
Original Russian Text © T.A. Okhlopkova, R.V. Borisova, L.A. Nikiforov, A.M. Spiridonov, P.P. Sharin, A. A. Okhlopkova,
2016, published in Zhurnal Prikladnoi
Khimii, 2016, Vol. 89, No. 9, pp. 1179−1186.
AND POLYMERIC MATERIALS
Technology of Liquid-Phase Compounding
of Ultra-High-Molecular-Weight Polyethylene
with Nanoparticles of Inorganic Compounds
under the Action of Ultrasonic Vibrations
T. A. Okhlopkova
, R. V. Borisova
, L. A. Nikiforov
, A. M. Spiridonov
P. P. Sharin
, and A. A. Okhlopkova
North-Eastern Federal University in Yakutsk, ul. Belinskogo 58, Yakutsk, Sakha Republic, 677000 Russia
Larionov Institute of Physicotechnical Problems of the North, ul. Oktyabr’skaya 1, Yakutsk, Sakha Republic, 677891 Russia
Institute of Oil and Gas Problems, Siberian Branch, Russian Academy of Sciences,
ul. Oktyabr’skaya 1, Yakutsk, Sakha Republic, 677891 Russia
Received September 19, 2016
Abstract—A novel technology for preparing nanocomposites on the basis of ultra-high-molecular-mass poly-
ethylene and nanoparticles of inorganic compounds (SiO
, AlN, Si
) was developed and tested.
The technology consists in liquid-phase compounding of nanocomposite components under the continuous action
of ultrasonic vibrations. The developed technology ensures dispersion of nanopaticle agglomerates in a liquid
medium, efﬁ cient mixing of components of the powder blend, and uniform distribution of nanoparticles in the
polymer matrix. The nanocomposites obtained exhibit increased levels of strength and elasticity.
As novel nanocomposite materials ﬁ nd more and
more extensive use in all branches of the economy
(machine building, medicine, electronics, means
of communications, nuclear power and aerospace
engineering), the development of novel technologies
for their production becomes a topical problem.
Nanocomposites based on ultra-high-molecular-mass
polyethylene (UHMWPE) occupy a particular place
among structural and functional materials owing to
such unique characteristics as low friction coefﬁ cient
and high levels of strength and resistance to aggressive
media and to wear.
A speciﬁ c feature of processing UHMWPE and
composites based on it is that the polymer matrix
cannot be brought into the viscous-ﬂ ow state because
of high molecular weight, which complicates the use of
traditional methods of polymer processing (extrusion,
pressure casting, etc.). Another problem making it
necessary to look for additional processing methods
is weak interaction at the polymer–ﬁ ller interface due
to essential differences in the surface properties of
inorganic nanoparticles (NPs) and polyethylene. It is
known that NPs tend to form agglomerates, which leads
to a decrease in their structure-making activity and to
weakening of electrostatic intermolecular interactions
of the system components [1, 2].
Numerous approaches and procedures were
suggested in different time periods to solve such
problems. Some of them have found wide use, namely:
(a) functionalization of the surface of the components
with surfactants or by chemical modiﬁ cation to improve
their compatibility with each other and prevent the
particle agglomeration [3–5]; (2) additional process
steps of mixing, disintegration, homogenization, etc.
; (3) preparation of a polymeric nanocomposite by
in-situ polymerization .
The NP dispersion using ultrasound differs from the
above methods essentially. The mechanism of material
dispersion in an ultrasonic ﬁ eld is primarily associated