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首页> 外文期刊>Journal of Applied Polymer Science >Acoustic analysis of composite soft materials III: Compressibility of boundary layers around particles of mica and calcium carbonate
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Acoustic analysis of composite soft materials III: Compressibility of boundary layers around particles of mica and calcium carbonate

机译：复合软材料的声学分析III：云母和碳酸钙颗粒周围边界层的可压缩性

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摘要

The velocities of longitudinal, transverse, and leaky surface skimming compressional waves (LSSCW) of polyvinylchloride composite materials were measured as a function of the particle concentration. The mica and calcium carbonate (CC) particles were used as additives. The longitudinal and transverse velocities for the PVC/mica composite increased with the concentration of the mica. In the case of the PVC/CC composite, the transverse velocity increased with the concentration of the CC particle, but the longitudinal velocity was independent of the concentration. The LSSCW velocity for the polyvinylchloride matrix did not change in each composite. The partial specific volume and the partial specific adiabatic compressibility of each particle dispersed in polyvinylchloride were evaluated from sound velocity and density data. The compressibility of the boundary layer around the particles was estimated. The thickness of the boundary layer around the mica particle was estimated. For the PVC/CC composite, on the other hand, a softer phase than the PVC matrix was formed around the CC particle because the compressibility of the boundary layer was larger than that of the PVC matrix. (c) 2005 Wiley Periodicals, Inc.
机译：测量了聚氯乙烯复合材料的纵向，横向和泄漏表面掠过压缩波（LSSCW）的速度与颗粒浓度的关系。云母和碳酸钙（CC）颗粒用作添加剂。 PVC /云母复合材料的纵向和横向速度随云母浓度而增加。对于PVC / CC复合材料，横向速度随CC颗粒浓度的增加而增加，但纵向速度与浓度无关。在每种复合物中，聚氯乙烯基质的LSSCW速度均未改变。从声速和密度数据评估分散在聚氯乙烯中的每个颗粒的部分比体积和部分比绝热压缩性。估计了颗粒周围边界层的可压缩性。估算云母颗粒周围边界层的厚度。另一方面，对于PVC / CC复合物，由于边界层的可压缩性大于PVC基体的可压缩性，因此在CC颗粒周围形成了比PVC基体更软的相。 （c）2005年Wiley Periodicals，Inc.

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