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首页> 外文期刊>The journal of physical chemistry, C. Nanomaterials and interfaces >Interphase Percolation Mechanism Underlying Elastomer Reinforcement
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Interphase Percolation Mechanism Underlying Elastomer Reinforcement

机译：外部弹性体增强潜力机制

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摘要

Glassy interphase has been claimed to be of vital importance for mechanical reinforcement of elastomer nano composites (ENCs), but the evolution of interphase topology in correlation to reinforcement percolation remains uncertain. Here, an accurate interfacial regulation strategy upon implementing an interphase percolation mechanism is exploited to realize percolation of mechanical performance toward striking elastomer reinforcement. Architecture design of interfacial metal-ligand bridges accomplishes firm anchoring between elastomer skeleton and carbon nanodots, leading to the formation of interfacial metal-enriched regions. The volume fraction of the interfacial region systemically enlarges upon increase of interfacial bridges, which finally overlaps with neighboring domains to form a penetrating interphase. The topological evolution of the interfacial region is quantitatively monitored upon small-angle X-ray scattering and dielectric measurements, which exhibits a similar percolation behavior in sync with that of macroscopic mechanical performance. Furthermore, the interphase exhibits much slower relaxation dynamics than in bulk polymer, which significantly improves the network rigidity and hence accounts for the prominent elastomer reinforcement. This investigation corroborates that the formation of penetrating interphase may be an executable mechanism to induce the reinforcement percolation of ENCs. We further envision that the implementation of interphase percolation mechanism can be a 0universal avenue to afford rationalized optimization of ENCs.
机译：已经声称对弹性体纳米复合材料（ENC）的机械加固至关重要，但与增强渗滤性相关的相互关联拓扑的演变仍然不确定。这里，利用在实施间隔渗透机制时进行准确的界面调节策略，以实现对撞击弹性体增强的机械性能的渗透。界面金属配体桥梁的建筑设计完成了弹性体骨架和碳纳米蛋白之间的坚固锚固，导致界面金属富含界面的形成。界面区域的体积分数在界面桥的增加时系统地增大，这最后与相邻域重叠以形成穿透相位。在小角度X射线散射和电介质测量时定量地监测界面区域的拓扑演化，这与宏观机械性能同步表现出类似的渗滤行为。此外，间间呈现比散装聚合物更慢的松弛动力学，这显着提高了网络刚性，因此占突出的弹性体增强的占据了占据效果。该研究证实了穿透性间的形成可以是可执行机制，以诱导ENC的增强渗透。我们进一步设想了差异渗透机制的实现可以是0个是一个提供合理化优化ENC的途径。

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