ROLE OF THE STRUCTURAL-RHEOLOGICAL STATE OF POLY(METH)ACRYLATE SOLUTIONS
IN THEIR SOAKING INTO CAPILLARY-POROUS BODIES

D. N. Yemel'yanov, N. V. Volkova, O. I. Sheronova, and T. S. Krasil'nikova

UDC 532.135:678.026.2:621.537.67

We have investigated the influence of the structural-rheological 
state of solutions of poly(meth)acryl copolymers on the rate of their 
capillary rise and the uniformity of the polymer distribution in the 
bulk of porous bodies - models of monuments of art made of ceramics, 
terracotta, loessial and lime plaster, and concrete. It has been found 
that in the region of concentrations corresponding to the transition 
of poly(meth)acrylate solutions from the viscous-Newtonian to the 
structural-viscous rheological state there is a sharp decrease in 
the rate of capillary rise of solutions into clay, chalk, and cement-sand 
specimens. A worsening of the uniformity of the polymer distribution 
over the height of the porous specimens, a decrease in their surface 
wetting with copolymer solutions, and a decrease in the value of the 
polymer adsorption on the filler surface are also observed.

N. I. Lobachevskii Nizhnii Novgorod State University; 
email: polymer@ichem.unn.runnet.ru. Translated from 
Inzhenerno-Fizicheskii Zhurnal, Vol. 76, No. 3, pp. 96-100, 
May-June, 2003. Original article submitted September 6, 2002.