INFLUENCE OF BINARY ADDITIVES OF COMPATIBILIZERS ON 
THE MICRO- AND MACRORHEOLOGICAL PROPERTIES
OF MELTS OF POLYPROPYLENE-COPOLYAMIDE MIXTURES

V. G. Rezanova and M. V. Tsebrenko

UDC 546.64:532.135

We have investigated the influence of binary additives 
of compatibilizers copolymer of ethylene with vinyl acetate/siloxane 
liquid on the rheological properties of melts and the processes of 
structure formation in polypropylene-copolyamide mixtures. It 
has been shown that there exists an optimal ratio of compatibilizers 
at which the maximum influence of additives on the process of specific 
fiber formation shows up. The mechanism of their action is connected 
with an increase in the length of the interphase layer, a decrease 
in the surface tension, and an increase in the lifetime of the liquid 
jet. The use of compatibilizers influences the viscosity of melts 
only slightly, and the capability of four-component compositions to 
be processed markedly increases.

Kiev National University of Technologies and Design, 2 
Nemirovich-Danchenko Str., Kiev, 01011, Ukraine; email: 
vlasenko@ekma.Kiev.ua. Translated from Inzhenerno-Fizicheskii Zhurnal, 
Vol. 81, No. 4, pp. 737-743, July-August, 2008. Original 
article submitted March 12, 2007.