In this study, the localization behavior of multiwalled carbon nanotubes (MWCNTs) was investigated in the ternary blends based on PC/SAN/PMMA (60/30/10). The major interest was focused on the effects of two different SANs having AN contents of 24 and 32 wt.% (SAN24 and SAN32, respectively) and PMMA on the phase structure of the composites. It was found that the spreading of PMMA around SAN32 was pronounced and relatively higher amount of MWCNTs were located at the interface of PC-PMMA, while the spreading behavior of PMMA around SAN24 was rather weak and MWCNTs were mostly found in PC phase. The unique phase structure characterized by the spreading of PMMA on SAN32 and the confinement of MWCNTs at the PC-PMMA interface was beneficial for the construction of electrical conduction pathways, as confirmed by the volume resistivities of the composites. It was shown that the volume resistivity of the composite containing SAN32 is lower than that of SAN24 at the same content of MWCNTs. The observed phase morphology was also correlated with the rheological properties of the composites.

中文翻译：

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PC，SAN和PMMA的三元共混物中多壁碳纳米管的定位行为

在这项研究中，研究了基于PC / SAN / PMMA（60/30/10）的三元共混物中多壁碳纳米管（MWCNT）的定位行为。主要兴趣集中在AN含量分别为24和32 wt。％（分别为SAN24和SAN32）的两种不同的SAN和PMMA对复合物的相结构的影响。发现PMMA在SAN32周围的扩散是明显的，并且相对大量的MWCNT位于PC-PMMA的界面，而PMMA在SAN24周围的扩散行为则较弱，并且MWCNTs主要在PC相中。复合材料的体积电阻率证实了其独特的相结构，其特征在于PMMA在SAN32上的扩散以及MWCNT在PC-PMMA界面处的封闭，这对导电路径的构建非常有利。结果表明，在相同的碳纳米管含量下，含SAN32的复合材料的体积电阻率低于SAN24。观察到的相形态也与复合材料的流变性质相关。