The Relative Viscosity of Concentrated Rubber Suspensions and Viscoelastic Modulus of 3D Сross-Linked Elastomers Filled with Solid Particles

Alexandr Ermilov,Ergasch Nurullaev

doi:10.4236/ojapps.2013.38057

Alexandr Ermilov, Ergasch Nurullaev

Open Access

https://doi.org/10.4236/ojapps.2013.38057

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Abstract

For the first time, this paper describes the concentration dependence of the relative dynamic viscosity coefficient of rubber suspensions and the initial viscoelastic modulus of 3D cross-linked elastomers on the maximum volume filling with solid polydisperse particles. It allows to predict the rheological and mechanical properties of the polymer compositions being developed now. In this paper, we present the first experimental study of the pole of the concurrent lines of the concentration dependence in the coordinates of the linear form. The pole validates the invariant value of the constant of the developed equation and allows the experimental determination of the maximum volume filling of polymer binders filled with separate fractions or polydisperse mixtures. The results of the study are recommended for use in developing new polymer composite materials.

Highlights

Engineering prediction of the coefficient of dynamic viscosity ( ) and the initial viscoelastic modulus (E) of low-molecular-weight rubbers and 3D cross-linked elastomers based on themin relation to the maximum volume filling (φ/φm) is of great importance in the development and manufacture of new polymer composite materials
The aim of this paper is to provide a theoretical justification of the empirical Equation (1) for the dependence of the relative viscosity of concentrated rubber suspendsions and the viscoelastic modulus of 3D cross-linked elastomers filled with solid particles
Rf 1 1 f 1 with respect to the relative coefficient of dynamic viscosity r Rf for the compositions based on low-mo lecular-weight polybutadiene SKD-KTR grade rubber with terminal carboxyl groups filled with silica (SiO2) of varying degree of fineness: 1—1 μm; 2—5 μm; 3—15 μm; 4—240 μm; 5—600 μm; 6—a mixture of 2 or 3 fractions taken in the optimal ratio in terms of the minimum porosity for increasing the maximum volume filling of the composition ( m )

Summary

Introduction

Engineering prediction of the coefficient of dynamic viscosity ( ) and the initial viscoelastic modulus (E) of low-molecular-weight rubbers and 3D cross-linked elastomers based on themin relation to the maximum (or limiting) volume filling (φ/φm) is of great importance in the development and manufacture of new polymer composite materials. NURULLAEV periments with various polymer suspensions and 3D cross-linked filled elastomers and got an empirical formula for the coefficient of dynamic viscosity and the initial viscoelastic modulus: Er. where the relations k 1.25 m and s 1 m are observed. The aim of this paper is to provide a theoretical justification of the empirical Equation (1) for the dependence of the relative viscosity of concentrated rubber suspendsions and the viscoelastic modulus of 3D cross-linked elastomers filled with solid particles. We aim to check whether the equation agrees with the experimental data and apply it for the determination of the maximum volume filling of the polymer binder with separate fractions and polydisperse mixtures of solid particles

Theoretical Study

Experimental Study

Engineering Applications

Conclusions