METHOD FOR INCREASING THE BOND STRENGTH OF RUBBERS WITH TEXTILE CORDS FROM SYNTHETIC FIBERS
Ключевые слова:tires, impregnating compounds, kapron cord, rubber cord parts, functional groups, rubber, adhesion, elastomeric matrix.
The article discusses the results of studies on the possibility of increasing the adhesion
of rubber to textile kapron cord. A rubberized kapron cord is used for tire production as a
carcass and has a number of advantages compared to a cotton cord, but kapron a cord has low
adhesion to rubber.
To improve the bond strength of rubber with a kapron cord, it is proposed to use a new
water-soluble by polyacrylonitrile modified monoethanolamine (MEPAN) polymer with high
surface activity obtained from nitron fiber wastes in an impregnating composition. The
experimental results showed that the bonding strength of rubbers with a kapron cord treated
with an impregnating composition with MEPAN at 110 °C is 27% higher than with a kapron
cord treated with a conventional impregnating composition.
In addition to increasing fatigue properties, the positive side of the heat treatment
process with an impregnating composition containing MEPAN is the fixation of the
elongation of this fiber with a simultaneous increase in strength, processed by the proposed
method, this change is only 3.4. The use of this cord in rubber products will significantly
extend the life of these products.