Technological classification of dispersed fillers by size and design of polymer composites with different types of structures

Abstract

The paper presents data on the determination of oil capacity and oligomer capacity of dispersed fillers based on silica with different particle sizes (from 50 nm to 250 microns). It is shown that using the oil absorption and oligomeric capacity data, it is possible to carry out a complete technological classification of dispersed particles by size and use it to create disperse filled polymer composite materials (DFPCM) with a given composition, type and structure parameters, as well as a set of operational properties. The values of the maximum disperse filler content (parameter φm) in DFPCM for particles of different sizes (from 50 nm to 250 microns) obtained by oil and oligomer adsorption and other methods are presented. For the first time, an algorithm for designing DFPCM compositions with different types of structures based on oil and oligomer capacity data of disperse fillers with different particle sizes and particle size distributions is proposed. The methods are simple, accessible and effective, which will allow solving problems of creating DFPCM with a given structure and a set of required properties quickly, reliably and with minimum costs. Compositions of DFPCM with different particle sizes of fillers, types of structures that cover the practical whole spectrum of modern polymer composites are given.