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首页> 外文期刊>Journal of Applied Polymer Science >Micromechanical Processes and Failure Phenomena in Reactively Compatibilized Blends of Polyamide 6 and Styrenic Polymers. I. Polyamide 6/Acrylonitrile– Butadiene–Styrene Copolymer Blends
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Micromechanical Processes and Failure Phenomena in Reactively Compatibilized Blends of Polyamide 6 and Styrenic Polymers. I. Polyamide 6/Acrylonitrile– Butadiene–Styrene Copolymer Blends

机译：聚酰胺6和苯乙烯类聚合物反应相容的共混物的微机械过程和失效现象。 I.聚酰胺6 /丙烯腈-丁二烯-苯乙烯共聚物共混物

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摘要

In this work, in situ investigations of the micromechanical properties of reactively compatibilized blends of polyamide 6 (PA6) and an acrylonitrile–butadiene– styrene copolymer (ABS) were performed with transmission electron microscopy. Three PA6/ABS blends were prepared with a disperse morphology (inclusions of PA6 or ABS) and with a cocontinuous structure. The objective of this work was to study the deformation of the inclusions and the interface between the PA6 phase and the ABS phase. Our transmission electron microscopy investigations revealed that the morphology of the blends was strongly influenced by the asymmetric nature of the interface between PA6 and ABS. In the blends with a PA6 matrix, the interface between PA6 and the ABS inclusions was deformed in tensile deformation under uniaxial loading. A strong influence of the PA6 water content on the (micro)mechanical behavior was observed. Although the ‘‘dry’’ blends behaved in a brittle fashion, the ‘‘wet’’ blends behaved in a ductile fashion with the formation of deformation bands in the matrix (PA6 or ABS), which were initiated by stress concentration at the particles (ABS or PA6, respectively).
机译：在这项工作中，采用透射电子显微镜对聚酰胺6（PA6）和丙烯腈-丁二烯-苯乙烯共聚物（ABS）的反应相容性共混物的微机械性能进行了原位研究。制备了三种具有分散形态（包括PA6或ABS）和共连续结构的PA6 / ABS共混物。这项工作的目的是研究夹杂物的变形以及PA6相和ABS相之间的界面。我们的透射电子显微镜研究表明，共混物的形态受到PA6和ABS之间界面不对称性质的强烈影响。在具有PA6基质的共混物中，PA6和ABS夹杂物之间的界面在单轴载荷下发生拉伸变形。观察到PA6水含量对（微）机械行为的强烈影响。尽管“干”共混物表现出脆性，但“湿”共混物表现出延性，在基体（PA6或ABS）中形成了变形带，这是由颗粒上的应力集中引起的（分别为ABS或PA6）。

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