PHENOMENON OF SPECIFIC FIBER FORMATION
IN POLYPROPYLENE/COPOLYAMIDE MIXTURES
CONTAINING POLYETHYLENEGLYCOL

E. P. Kuvaeva, M. V. Tsebrenko,
and N. M. Rezanova

UDC 541.64

We have investigated the influence of a polyethyleneglycol 
additive and a binary mixture of compatibilizers ethylene copolymer 
with vinylacetate/polyethyleneglycol on the flow behavior and the 
processes of structure formation in 30/70 polypropylene/copolyamide 
mixtures. It has been shown that polyethyleneglycol decreases the 
viscosity and increases the elasticity of the polymer mixture melt. 
From the point of view of fiber formation, polyethyleneglycol is an 
effective compatibilizer for the polypropylene/copolyamide mixture. 
The introduction of binary mixtures of compatibilizers is more effective 
than the introduction of individual substances. It has been established 
that individual compatibilizers and their mixtures stabilize liquid 
polypropylene jets in the copolyamide matrix, which permits obtaining 
microfibers of smaller diameters.

Kiev National University of Technologies and Design, 2, 
Nemirovich-Danchenko Str., Kiev, 01011, Ukraine; email: mfibres@i.com.ua. 
Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 78, No. 5, pp. 
114-117, September-October, 2005. Original article submitted 
October 29, 2004.