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EFFECTS OF ANNEALING IN ABS TERNARY BLENDS

机译:退火在ABS三元混合物中的作用

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Acrylonitrile-butadiene-styrene terpolymer (ABS)/poly(methyl methacrylate) (PMMA) binary and ABS/PMMA/polycarbonate (PC) ternary blends were prepared using a corotating twin-screw extruder. Blend samples were annealed in a constant-temperature (215 and 225 degrees C) hydraulic press up to 85 min. The changes in morphology and mechanical properties with annealing time were studied with transmission electron microscopys image analyzer, and tensile tester. With the increase in annealing time, the number of dispersed domains per cross-sectional area decreased and average domain size increased; this morphology coarsening became more responsible with time for the deterioration of blend properties. In ABS/PMMA/PC ternary blends, PMMA encapsulated PC in ABS matrix; this was predictable from the spreading coefficient calculation. (C) 1997 John Wiley & Sons, Inc. [References: 16]
机译:丙烯腈-丁二烯-苯乙烯三元共聚物(ABS)/聚甲基丙烯酸甲酯(PMMA)二元和ABS / PMMA /聚碳酸酯(PC)三元共混物是使用同向旋转双螺杆挤出机制备的。共混物样品在恒温(215和225摄氏度)液压机中退火长达85分钟。用透射电子显微镜图像分析仪和拉伸试验机研究了形貌和力学性能随退火时间的变化。随着退火时间的增加,每横截面积的分散畴数量减少,平均畴尺寸增加。随着时间的增长,这种形态的粗化对共混物性能的下降越来越负责。在ABS / PMMA / PC三元混合物中,PMMA封装在ABS基质中的PC。这可以通过扩频系数计算来预测。 (C)1997 John Wiley&Sons,Inc. [参考:16]

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