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首页> 外文期刊>Journal of Applied Polymer Science >Interfacial properties of polycarbonate/liquid-crystal polymer and polystyrene/high-impact polystyrene polymer pairs under shear deformation
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Interfacial properties of polycarbonate/liquid-crystal polymer and polystyrene/high-impact polystyrene polymer pairs under shear deformation

机译：剪切变形下聚碳酸酯/液晶聚合物与聚苯乙烯/高抗冲聚苯乙烯聚合物对的界面性质

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摘要

We developed an energy model derived from the first principle for multilayer configurations to enhance our understanding of the interfacial property between two polymers under shear deformation. We carried out specific experiments satisfying the boundary and loading conditions of the model to obtain the energy dissipation factor (0), which characterized and quantified the interfacial property. Two polymer pairs, the miscible system polystyrene (PS)/high-impact polystyrene (HIPS) and the immiscible system polycarbonate (PC)/liquid-crystal polymer (LCP), were investigated. As expected, beta was zero for PS/HIPS, reflecting the strong interaction at the PS/HIPS interface. For PC/LCP, the value of beta could be significant, and its behavior was complex; it reflected the thermal sensitivity and thermal history effect of the PC/LCP interface. A positive value of beta also indicated the possibility of slip at the interface and provided an explanation for the negative deviation from the rule of mixture. This complex behavior of the interface was attributed to the changes in the phases and microstructure of LCPs and, therefore, the LCP/PC interface as thermal cycling was carried out in the meltingematic range of LCPs. (C) 2002 Wiley Periodicals, Inc. [References: 19]
机译：我们开发了一个从多层构型的第一个原理得出的能量模型，以增强我们对两种聚合物在剪切变形下的界面性能的了解。我们进行了满足模型边界和加载条件的特定实验，获得了能量耗散因子（0），该特征表征并量化了界面性质。研究了两对聚合物，可混溶体系聚苯乙烯（PS）/高抗冲聚苯乙烯（HIPS）和不可混溶体系聚碳酸酯（PC）/液晶聚合物（LCP）。正如预期的那样，PS / HIPS的beta为零，反映了PS / HIPS界面的强大交互作用。对于PC / LCP，β的值可能很大，并且其行为很复杂。它反映了PC / LCP接口的热灵敏度和热历史效应。 β的正值也表明界面发生打滑的可能性，并解释了混合规则的负偏差。界面的这种复杂行为归因于LCP的相和微观结构的变化，因此，LCP / PC界面在LCP的熔融/向列范围内进行了热循环。 （C）2002 Wiley Periodicals，Inc. [参考：19]

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