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首页> 外文期刊>Journal of Applied Polymer Science >Damping Behavior of Wood Filled Polypropylene Composites
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Damping Behavior of Wood Filled Polypropylene Composites

机译：木材填充聚丙烯复合材料的阻尼行为

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摘要

The damping coefficient (tan delta) of wood flour filled polypropylene composites, having varying filler concentrations were measured using the free vibration decay of disk-shaped specimen, vibrating in flexural vibration mode. The damping coefficients decreased with the increase of filler load in composites. There was no significant difference in damping behavior of composites with and Without compatiblizer at low filler level (upto 30%). At higher filler loading (>30%), composites with compatiblizer had lower damping coefficient suggesting improved interfacial adhesion between wood and polypropylene. The damping in composite is attributed to the damping because of the composite constituents and damping at the interface. The damping because of interface was estimated using a model and was found to increase with the increase in filler loading. At higher filler content, damping due to interface in composites with compatiblizer was significantly lower than in composites without compatiblizer suggesting a better interfacial adhesion between the wood filler and polypropylene matrix with compatiblizer.
机译：使用盘状试样的自由振动衰减，以弯曲振动模式振动，测量了填充粉浓度变化的木粉填充聚丙烯复合材料的阻尼系数（tanδ）。阻尼系数随着复合材料中填料载荷的增加而减小。在低填料含量（最高30％）下，有或没有增容剂的复合材料的阻尼性能没有显着差异。在较高的填料含量（> 30％）下，具有相容剂的复合材料的阻尼系数较低，表明木材和聚丙烯之间的界面粘合性得到改善。复合材料的阻尼归因于阻尼，因为复合材料的成分和界面处的阻尼。使用模型估算了由于界面引起的阻尼，发现该阻尼随着填料载荷的增加而增加。在较高的填料含量下，具有增容剂的复合材料中由于界面引起的阻尼显着低于没有增容剂的复合材料中，这表明具有增容剂的木材填料与聚丙烯基质之间的界面粘合性更好。

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