Abstract
Polymer blends are capable of providing materials with extended useful properties beyond the range that can be obtained from single polymers. Acrylonitrile-butadiene-styrene and polycarbonate blends are important industrial materials, especially, in the machine building industry, as ABS improves the processing properties of parts and their toughness, and they also feature positive thermodynamic interaction between PC and styrene-acrylonitrile (SAN) copolymer as a part of ABS. DSC method was used to study the thermal properties of ABS and ABS/PC blends with various ratios. The result from this work shows that abnormal endothermic effect in the ABS glass transition region implies an inadequate manufacturing process for automotive components. The paper studied the influence of ABS/PC blend ratios on the value of glass transition temperature and delta Cp, and it was found that the Tg value for SAN/PC increased with decreasing ABS for ABS/PC blends with mass ratio of 75/25, 60/40, 50/50.
Highlights
Blending and alloying technology has enhanced the applicability of plastics in automotive applications that had previously been the domain of homopolymers and metals
The object of this paper is to study the thermal properties of ABS, ABS/PC in order to control the quality of automotive components made by thermoforming of ABS/PC sheets, as well as to show the effect of blend ratios on the thermal properties of ABS/PC compositions
Differential Scanning Calorimetry (DSC) method was used to study the thermal properties of ABS and ABS/PC blends with ratios of 75/25, 60/40, 50/50, and 30/70 respectively
Summary
Blending and alloying technology has enhanced the applicability of plastics in automotive applications that had previously been the domain of homopolymers and metals. The resulting new materials frequently boast synergistically enhanced strength, low temperature impact resistance, high temperature capability, and good paintability. These are all important, if not essential, performance attributes for automotive applications [1]. Blends of polycarbonate and ABS resins (in bulk or as emulsion) are important industrial materials as ABS improves the processing properties of parts and their toughness. The ABS/PC blends show dimensional stability, low shrinkage and moisture absorption, high stiffness and hardness, good impact resistance at temperatures T≥ -50°C, excellent UV stability, processability, mechanical properties, heat resistance, flame retardancy, good chemical resistance, but poor to gasoline, aromatic hydrocarbons, esters, ketones and some chlorinated hydrocarbon [1]. The best method for detecting ABS/PC composition in the different types of automotive components is Differential Scanning Calorimetry (DSC)
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