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Abstract
Acrylonitrile butadiene styrene (ABS) and polycarbonate (PC) are considered a well-known class of engineering thermoplastics due to their efficient use in automotive, 3D printing, and electronics. However, improvement in toughness, processability, and thermal stability is achieved by mixing together ABS and PC. The present study focuses on the understanding of surface mechanical characterization of acrylonitrile butadiene styrene (ABS) and polycarbonate (PC) blends using nano-indentation. Polymer blends sheets with three different proportions of ABS/PC (75:25, 50:50, and 25:75) were fabricated via melt-processing and thermal press. Fourier transform infrared (FTIR) spectroscopy was performed to analyze the intermolecular interactions between the blends’ components. To understand the surface mechanical properties of ABS and PC blends, a sufficient number of nano-indentation tests were performed at a constant loading rate to a maximum load of 100 mN. Creeping effects were observed at the end of loading and start of unloading section. Elastic modulus, indentation hardness, and creep values were measured as a function of penetration displacement in the quasi-continuous stiffness mode (QCSM) indentation. Load-displacement curves indicated an increase in the displacement with the increase in ABS contents while a decreasing trend was observed in the hardness and elastic modulus values as the ABS content was increased. We believe this study would provide an effective pathway for developing new polymer blends with enhanced mechanical performance.
Highlights
Acrylonitrile butadiene styrene (ABS) and polycarbonate (PC) are considered a well-known class of engineering thermoplastics due to their efficient use in automotive, 3D printing, and electronics
Introduction with regard to jurisdictional claims in Acrylonitrile butadiene styrene (ABS) is a thermoplastic characterized by its notch insensitivity and low cost with poor flame and chemical resistance, and low thermal stability
The small addition of ABS to PC helps in improving processability, impact resistance, and cost, while adding a small amount of PC to ABS results in better thermal and mechanical properties [1,2,3]
Summary
Acrylonitrile butadiene styrene (ABS) and polycarbonate (PC) are considered a well-known class of engineering thermoplastics due to their efficient use in automotive, 3D printing, and electronics. The present study focuses on the understanding of surface mechanical characterization of acrylonitrile butadiene styrene (ABS) and polycarbonate (PC) blends using nano-indentation. We believe this study would provide an effective pathway for developing new polymer blends with enhanced mechanical performance. 1. Introduction with regard to jurisdictional claims in Acrylonitrile butadiene styrene (ABS) is a thermoplastic characterized by its notch insensitivity and low cost with poor flame and chemical resistance, and low thermal stability. By mixing together ABS and PC, drawbacks are minimized and useful characteristics such as low temperature toughness, heat resistance and thermal stability, and ease of processing at lower cost are generated. The small addition of ABS to PC helps in improving processability, impact resistance, and cost, while adding a small amount of PC to ABS results in better thermal and mechanical properties [1,2,3]. While blending ABS with PC, ABS grafted butadiene chains usually stay insoluble, though they are bonded by styrene-acrylonitrile published maps and institutional affiliations
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