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首页> 外文期刊>Journal of Polymers and the Environment >Compatibilization Strategies for Recycling Applications of High Impact Polystyrene/Acrylonitrile Butadiene Blends
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Compatibilization Strategies for Recycling Applications of High Impact Polystyrene/Acrylonitrile Butadiene Blends

机译：高抗冲聚苯乙烯/丙烯腈丁二烯共混物回收应用的相容性策略

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摘要

Plastic waste from electrical and electronic equipment (WEEE) is growing up exponentially fast during the last two decades, mainly due to short lifetime of technological products like cellphones or computers. This situation entailed an increase in the accumulation of specific plastic materials such Acrylonitrile-Butadiene-Styrene (ABS), High Impact Polystyrene (HIPS), Polycarbonate, among others. These plastics can be recycled by themselves but their separation by type is neither easy nor economically viable, then recycling them together as a blend is the most economically viable alternative. However, mechanical properties suffer a deterioration and to enhance phase adhesion and add value to this WEEE blend, an adequate compatibilization is needed. To choose a compatibilization route an accurate comprehension of blends behavior has to be done. In this work, a systematical study of the addition compatibilization of HIPS/ABS blends was performed. Besides results were focus to WEEE recycling, in order to comprehend this complex system, virgin base materials were used. Relative amount effect on self-compatibilization was analyzed by two different HIPS/ABS blends, one with major content of HIPS and other with major content of ABS. Also, two different copolymers were used as compatibilizer, Styrene-Acrylonitrile (SAN) and Styrene-Butadiene-Styrene and the concentrations chosen were 2 and 20 wt%. The best performance was achieved for blend with major content of ABS by using 2 % of SAN, obtaining a compatibilized blend with a general improvement of mechanical properties specially toughness in a 350 % and elongation in a 77 % respect to the physical blend.
机译：在过去的二十年中，电气和电子设备（WEEE）产生的塑料废料呈指数级增长，这主要归因于手机或计算机等技术产品的使用寿命短。这种情况导致特定塑料材料（例如丙烯腈-丁二烯-苯乙烯（ABS），高抗冲聚苯乙烯（HIPS），聚碳酸酯）的堆积增加。这些塑料可以自己回收，但按类型进行分离既不容易，也不经济可行，然后将它们作为共混物一起回收是最经济可行的选择。但是，机械性能恶化并且为了增强相粘附力并为该WEEE共混物增加价值，需要足够的相容性。要选择增容途径，必须对掺混行为进行准确的理解。在这项工作中，对HIPS / ABS共混物的添加相容性进行了系统的研究。除了将结果集中在WEEE回收之外，为了理解这个复杂的系统，还使用了原始的基础材料。通过两种不同的HIPS / ABS共混物分析了相对量对自相容性的影响，一种是HIPS的主要成分，另一种是ABS的主要成分。同样，两种不同的共聚物用作增容剂，苯乙烯-丙烯腈（SAN）和苯乙烯-丁二烯-苯乙烯，选择的浓度为2和20重量％。通过使用2％的SAN，可以得到具有最佳ABS含量的共混物的最佳性能，从而获得了相容性共混物，其机械性能得到了总体改善，特别是相对于物理共混物，韧性提高了350％，伸长率提高了77％。

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