In this study, a new method was developed for the characterization of the interface morphology in polymer/particle composites. This method, not limited to a specific polymer or particle, utilizes the gas permeability of the composites to determine the interfacial properties such as the type of polymer-particle interactions as well as the thickness and the transport properties of the interphase. Moreover, it can be employed to determine the size of the aggregates in the case of particle aggregation. The proposed method was evaluated by comparing its results with the findings of the small-angle X-ray scattering (SAXS) analysis for polyethersulfone (PES)-based composites containing pristine and fumed silica nanoparticles. Our method was also evaluated by analyzing the results of other studies obtained from the literature.

在这项研究中，开发了一种用于表征聚合物/颗粒复合材料界面形态的新方法。该方法不限于特定的聚合物或颗粒，而是利用复合材料的气体渗透性来确定界面性质，例如聚合物-颗粒相互作用的类型以及界面的厚度和传输性质。此外，在颗粒聚集的情况下，可用于确定聚集体的尺寸。通过将其结果与包含原始和气相二氧化硅纳米粒子的聚醚砜（PES）基复合材料的小角X射线散射（SAXS）分析结果进行比较，对所提出的方法进行了评估。我们的方法还通过分析从文献中获得的其他研究结果进行了评估。