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聚合物-聚合物混合复合材料作为绝缘体建筑材料的声阻评价

Besma M Fahad¹, Rand Salih Farhan Al-Jadiri¹

¹Materials Engineering Department, College of Engineering, Mustansiriyah University, Baghdad 10052, Iraq.

|August 26, 2023

概括

这项研究研究了混合复合材料的声学特性. 结果显示,不和聚/PMMA复合材料与聚乙烯 (PS) 呈现较高的声阻,表明与聚乙烯 (PE) 相比,超声波散射更好.

科学领域:

材料科学材料科学材料科学
声学声学在声学方面
聚合物复合材料聚合物复合材料

背景情况:

在多相材料中,声能消耗是至关重要的.
混合复合材料的特点是多种材料接口,非常适合研究声学行为.
了解声学特性是涉及波传播和能量吸收的应用的关键.

研究的目的:

为了研究聚合物混合复合材料的声学行为.
为了估计混合复合材料的声阻,时间和速度.
为了比较不同混合复合材料配方的超声波散射能力.

主要方法:

制备两组混合复合材料:不和聚 (UP) 与PMMA,以及UP/PMMA与高密度聚乙烯 (HDPE) 或聚烯 (PS).
包括28%,35%和40%的重量分数.
利用超声波测试来测量波的传输时间,计算速度,并确定声阻.

主要成果:

增加重量分数通常会增加复合材料的密度.
超声波传输时间随着重量分数的变化而变化;随着聚乙烯 (PS) 含量增加,超声波传输时间增加,而速度随密度下降但增加.
在28%不和聚/PMMA+PS复合物中观察到最高的声阻.
含有PS的复合材料和含有聚乙烯 (PE) 的复合材料之间的声学行为有所不同.

结论:

与不和聚/PMMA+PE复合材料相比,不和聚/PMMA+PS复合材料显示出优越的超声波散射.
配方UP/PMMA + PS显示了需要有效吸收声能的应用的潜力.
声阻力是评估混合复合材料超声波散射能力的关键参数.

关键词:

声 impedance 阻抗的声音阻抗是指声阻抗的声音阻抗.复合材料是一种复合材料.混合复合材料是混合复合材料.聚合物复合材料是一种聚合物复合材料.超声波测试试验超声波测试试验

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