Experimental study of the miscibility of ABS/PC polymer blends and investigation of the processing effect

Abstract

In the challenging prospect of developing new materials by mixing different polymers to reach a synergetic performance, the present research focuses on the study of the miscibility of two polymers: The acrylonitrile butadiene styrene (ABS) composed of a dispersed elastomeric (polybutadiene rubber) polymer embedded in a SAN thermoplastic matrix, and the polycarbonate (PC). It shall be noted that obtaining miscible polymer blends is often a difficult task because of the large size of their molecular chains and the high interfacial tension between the polymer phases. Until now, the most numerous researches developed in this field involve polymer blends obtained by compatibilization techniques in order to improve the interfacial adhesion between initial polymers. The aim of this work is to study the miscibility between ABS and PC. First, two different methods were used to mix the polymers: the twinscrew extrusion and the dissolution in a common solvent tetrahydrofuran (THF). Then, physicochemical, microscopic observation and rheological characterization were performed on samples of mixtures obtained by both extrusion processing and dissolution method. The measurement of glassy transition temperature (T g ) by differential scanning calorimetry measurements (DSC) and dynamical mechanical thermal analysis (DMTA) have shown a partial miscibility between the two polymers. V C 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 44975.

Relationship between the interfacial tension and compatibility of polycarbonate and poly(acrylonitrile–butadiene–styrene) blends with reactive compatibilizers

“…Because polymer blending may improve the mechanical or thermal properties of polymers, polymer blends have many advantages compared with pure polymers . Polycarbonate (PC) has good mechanical properties, whereas poly(acrylonitrile–butadiene–styrene) (PolyABS) has good chemical resistance.…”

“…Although PC–PolyABS blends have been investigated by many researchers, studies have rarely been conducted on the correlation between α through the Palierne emulsion model and the compatibility of the PC–PolyABS blends. In this study, we also investigated the α and form relaxation time (τ 1 ) values of the PC–PolyABS blends through the rheological measurements of the PC–PolyABS blends, and the α and τ 1 values were compared with the compatibilizer type and content of the blends.…”

PLA/SEBS Bioblends: Influence of SEBS Content and of Thermal Treatment on the Impact Strength and Morphology

“…As the concentration of the SEBS copolymer increases, the average SEBS dispersed phase particles size also increases, suggesting the occurrence of coalescence of the SEBS dispersed phase domains, which may have contributed to a reduction in the impact strength, as observed in Table . According to the literature in immiscible polymer blends, as is the case of PLA/SEBS bioblends, the proprerties are strongly influenced by the morphology . At higher dispersed phase concentrations, coalescence occurs leading to larger particles domains size .…”

Experimental design to enhance the surface appearance, the internal structure, and the shear stresses of injected and metallized polycarbonate/acrylonitrile–butadiene‐styrene parts

“…As can be seen on the curve, T g1 , 116.3 °C, was the ABS T g and T g2 , 145.1 °C, was that of PC. This finding is in agreement with the study by Aid et al . and Yankin et al…”