Influence of calcium carbonate filler and mixing type process on structure and properties of styrene–acrylonitrile/ethylene–propylene–diene polymer blends

Abstract

The properties of styrene–acrylonitrile (SAN) and ethylene–propylene–diene (EPDM) blends containing different types of calcium carbonate filler were studied. The influence of mixing type process on the blend properties was also studied. Two different mixing processes were used. The first one includes mixing of all components together. The other process is a two‐step mixing procedure: masterbatch (MB; EPDM/SAN/filler blend) was prepared and then it was mixed with previously prepared polymer blend. Surface energy of samples was determined to predict the strength of interactions between polymer blend components and used fillers. The phase morphology of blends and their thermal and mechanical properties were studied. From the results, it can be concluded that the type of mixing process has a strong influence on the morphological, thermal, and mechanical properties of blends. The two‐step mixing process causes better dispersion of fillers in blends as well as better dispersion of EPDM in SAN matrix, and therefore, the finest morphology and improved properties are observed in blends with MB. It can be concluded that the type of mixing process and carefully chosen compatibilizer are the important factors for obtaining the improved compatibility of SAN/EPDM blends. © 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012

Method of Metallurgical Production Waste Processing

“…Studying the shape of particles is important because this indicator affects the structure, properties and technological parameters of the preparation of polymer composites [14,15]. From studies [16,17] it is known that dust particles of silicon production have a spherical shape.…”

“…-improvement of the physicomechanical properties of the composite [6,7,8,9]. To solve the tasks, studies have been conducted on the use of filler of polymer compositions of metallurgical waste products -the dust of a gas cleaning system for silicon production.…”

Comparative Analysis of the Physical and Mechanical Properties of Composites with Functional Fillers Based on Waste

“…This method of determining the specific surface area is used if the exact granulometric characteristic of the dispersed material is known. The method is used in studies of the properties of functional fillers of polymer compositions [12,15], [16][17][18].…”

Comparison of the mechanical, thermomechanical, thermal, and morphological properties of pumice and calcium carbonate‐filled poly(phenylene sulfide) composites

“…Calcium carbonate (CaCO 3 ) has been one of the most commonly used inorganic powders for polymers and effects of the addition of micro-or nano-size CaCO 3 fillers to polymers are well known in the literature [9][10][11][12][13][14][15][16][17][18][19][20][21]. PPS is one of these polymers and in the literature there are some studies which investigated nano-sized CaCO 3 reinforced PPS composites [4,5,[22][23][24][25].…”