Russian Journal of Applied Chemistry, 2010, Vol. 83, No. 7, pp. 1305−1308.
Pleiades Publishing, Ltd., 2010.
Original Russian Text
N.I. Kurbanova, N.M. Seidov, 2010, published in Zhurnal Prikladnoi Khimii, 2010, Vol. 83, No. 7, pp. 1199−1202.
AND POLYMERIC MATERIALS
Study of Properties of Vulcanizates
for Binary Mixtures of Polar Caoutchouck
N. I. Kurbanova and N. M. Seidov
Institute of Polymeric Materials, Azerbaijan National Academy of Sciences, Sumgait, Azerbaijan
Received May 27, 2008
Abstract—Effect of the extender, commercial N-330 carbon, on strength and thermal properties of vulcanizates
for binary mixtures of polar caoutchoucks with polyisoprene was studied.
Achievements in the ﬁ eld of the theory and practice of
multicomponent systems based on polymeric compounds
demonstrate practically unlimited possibilities of this
direction in the modiﬁ cation of polymeric materials. Es-
sential advantage of polymer–polymer compositions is
a possibility of creating operation compatible composites
from thermodynamically incompatible ingredients. In
this case resulting composites can have a stable complex
of properties and surpass traditional polymer blends by
certain characteristics [1 –3].
Scientiﬁ c principles of making composite materials
on the basis of polymer blends [4, 5] are developed.
Conditions for the preparation and treatment of the blends
and for the introduction of various additions are also of
principal importance for the formation of their structure
and properties [6–9].
This work is devoted to the study of properties of
vulcanizates of binary mixtures of butadien –nitrile and
bromo–isobutylene–isoprene caoutchoucks with poly-
In this work we used Cariﬂ ex IR 309 polyisoprene of
Shell production, d = 0.9 g cm
(SCI); NB 192 HF buta-
diene–nitrile copolymer containing 27% of acrylonitrile
of BSL Oleﬁ nverbund GmbH Schkopau production, d =
0.98 g cm
(SCN); Polysar 2030 bromo–isobutylene–
isoprene copolymer containing 2% of bromine of Bayer
production, d = 0.93 g cm
(BIIC); N330 commercial-
grade carbon (CC).
Initial components were mixed under laboratory
conditions in a Brabender Plasticorder mixer (volume
, initial temperature 50°С, and ﬁ lling degree 0.75)
within 6 min for systems without an extender and within
7, 10, and 15 min for ﬁ lled compositions. Vulcanizing
system for the blends contained (parts by weight): SCN/
SCI: sulfur 1.5, stearic acid 2.0, zinc oxide 5.0, altax
0.8; BIIC/SCI: sulfur 2.0, stearic acid 2.0, zinc oxide
5.0, thiuram 1.3, and altax 0.65. Relation of components
in compositions (parts by weight) SCN (BIIC) : SCI :
CC = 50 : 50 : 50.
Time of introducing the components in a mixer (s):
SCN (BIIC) 0, SCI 120, CC 180 (by parts in three steps),
and sulfur + stearic acid + zinc oxide + accelerators 240.
Conditions for vulcanizing each composition on
Goettfert and Elastograph (T = 145°С) were determined.
The blends were vulcanized in moulds of depth 1 mm at
145°С in a Coulin compression moulding machine.
Physical-mechanical tests under a quasistatic load-
ing were carried out on a Zwick 1425 tension testing
machine at room temperature and a deformation rate of
200 mm min
Dynamic mechanical analysis was carried out on
a Gabo Qualimeter Eplexor 500 N device (T = –120…