The Strength Properties of Incompatible Polymer Blends Based on Polyamide and Polystyrene

Abstract

An examination was made of the influence of the concentration of the compatibiliser-a graft copolymer of polystyrene with maleic anhydride-on the compatibility of a polyamide-polystyrene blend in a wide range of ratios. The influence of the length and frequency of distribution of the graft chains of the graft copolymer on the compatibility and deformation and strength properties of the polyamide-polystyrene blend was established.

High-impact Composites of Polypropylene and Nitrile Butadiene Rubber with Improved Compatibility of the Polymer Components, Obtained by Melt Reactive Compounding. Part 2: The Influence of the Composition and Concentration of the Polymer Compatibiliser on the Impact Strength of the Composites

“…The concentration range in which compatibilisers not containing rubber BNKS-18AMN are effective at a test temperature of 23 ± 1°C ( Figure 1 ) amounts to 5 wt% and is not dependent on the nature of the coagent used in the process of synthesis of the given compatibilisers, which on the whole corresponds to research data given elsewhere [4,6]. The nature of the coagent has an influence only on the magnitude of this maximum.…”

“…Investigations of peroxide modification systems used in processes of reactive compounding of heterophase PP/elastomer blends are now fairly well represented in the scientific literature [1–3]. A more extensive study of peroxide systems in polymer chemistry is being prevented by the complexity of allowing for the composition, structure, and extent (volume) of the transition layer between the phases of the thermodynamically incompatible polymer components that is formed in the process of reactive compounding and/or with the use of additions of surface-active polymer compatibilisers [4–6].…”

“…Kahramanly [4] described the possible diffusion of polymer chains of the compatibiliser, with certain graft-chain molecular weights, through the phase boundary, with the formation of loop-type structures in one of the phases of similar polarity. The process of formation of a fairly extensive and bulky layer along the phase boundary, comprising a microdispersion of one polymer in another, was shown by Lipatov [5].…”

The Effect of Mineral Fillers on the Main Physicomechanical Properties of Random Polypropylene Copolymers

“…However, as the filler concentration increases and the heterogeneous crystallisation centres are saturated, a large proportion of the particles collect in the amorphous region, thereby promoting considerable inhibition of conformational mobility of the continuous chains and consequently a deterioration in the elongation at break and stress causing failure. Along with this, the probability of the emergence in the boundary regions of adsorption bonds of macromolecules with the surface of filler particles leads to additional structure formation of the system, thereby limiting their mobility [10,11]. This is indicated graphically by the data given in Table 1 .…”

A Study of the Effect of Maleic Anhydride on the Synthesis, Morphology, and Properties of Acrylonitrile Butadiene Styrene Plastic

“…The physicochemical and especially the mechanical properties of plastics are determined in many ways by their structural morphological factor. Therefore, to given them certain properties, plastics are modified [1]. The classic modifier for polymers is maleic anhydride (MA), which is due primarily to its great reactivity [2].…”