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Acrylonitrile butadiene styrene (ABS)/short glass fiber (SGF) composites were prepared. The effect of fiber volume fraction on the properties of composites was investigated, and test results were compared with theorical equations. SEM micrographs confirmed the reports in other studies that the adhesion between ABS and neat glass fiber is poor. Silane coupling agents with different organofunctional groups were used to improve the interface. The role of these coupling agents was studied by comparing processability, mechanical and physical properties of the composites containing different silane-treated glass fibers. It seems that using coupling agents, especially those with more effective functional groups, reduces the deviation of properties from theory. The affinity of different functional groups to ABS, as well as the strength of chemical and physical bandings formed during the reaction of silane modification, decides the effectiveness of the relative coupling agent. By properties and morphology analysis we concluded that tricholorovinyl silane seems to be the best coupling agent, for this composite. This conclusion is supported by the theorical possibility of forming stronger bands at the interface for this specific coupling agent. [ABSTRACT FROM AUTHOR]

Different samples of acrylonitrile-butadiene-styrene (ABS)/short glass fiber (SGF) composites were prepared. Varying processing conditions such as rotor rate, fiber volume, coupling agent type and amount, and also temperature were applied in order to investigate the effect of different factors on the final properties of the composite produced. All samples were tested physically, mechanically, and morphologically to investigate the effect of varying parameters mentioned above. The best fiber concentration, coupling agent, and temperature were found in a 30 wt% SGF composite coupled with 3 wt% of fiber tricholorovinyle silane and processed at 190°C (rotor rate=80 rpm) which showed the best properties compared with other samples. [ABSTRACT FROM AUTHOR]