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首页> 外文期刊>Journal of Applied Polymer Science >Influence of properties and morphology of elastomeric phase on the behavior of ternary reactive blends of polyamide 6/rigid polymer/elastomer
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Influence of properties and morphology of elastomeric phase on the behavior of ternary reactive blends of polyamide 6/rigid polymer/elastomer

机译：弹性体相的性质和形态对聚酰胺6 /刚性聚合物/弹性体三元反应混合物性能的影响

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摘要

A ternary blend of the PA6 matrix with a finely dispersed rigid polymer and elastomer is a system with well-balanced mechanical properties. Its micromechanical behavior, especially that of the elastomer phase, apparently differs from corresponding binary mixtures. This study shows the influence of the elastomer type, modulus, and reactivity on the behavior of ternary blends in comparison with analogous binary PA6/elastomer combinations. The presence of rigid reactive poly(styrene-co-maleic anhydride) (SMA) enhanced the properties of all the systems studied. For nonreactive elastomers, the dominant effect was refinement of their size due to enhanced viscosity, whereas for functionalized low-modulus elastomers, the very good balance of properties was due to synergistic influences of both finely dispersed phases. Of interest is the enhanced toughness of ternary blends also for more rigid elastomers having a low toughening efficiency in binary blends. An appropriate addition of rigid SMA together with an elastomer enhances the energy absorption of the matrix, probably without cavitation of very small elastomer particles. Of importance also is the simultaneous strain-hardening effect of deformed rigid particles. (C) 2003 Wiley Periodicals, Inc. [References: 22]
机译：PA6基体与精细分散的刚性聚合物和弹性体的三元共混物是具有良好平衡机械性能的体系。它的微机械性能，特别是弹性体相的微机械性能，显然与相应的二元混合物不同。这项研究表明，与类似的二元PA6 /弹性体组合相比，弹性体类型，模量和反应性对三元共混物性能的影响。刚性反应性聚（苯乙烯-马来酸酐）（SMA）的存在增强了所有研究系统的性能。对于非反应性弹性体，主要的作用是由于粘度增加而使尺寸更细化，而对于功能化的低模量弹性体，其非常好的性能平衡是由于两个细分散相的协同作用所致。令人感兴趣的是，对于在二元共混物中具有低增韧效率的更刚性的弹性体，三元共混物也具有增强的韧性。刚性SMA与弹性体的适当添加可增强基体的能量吸收，可能不会使非常小的弹性体颗粒空化。同样重要的是变形的刚性颗粒的同时应变硬化作用。 （C）2003 Wiley Periodicals，Inc. [参考：22]

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