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首页> 外文期刊>Journal of Applied Polymer Science >Characterization study of flax/strontium titanate/polypropylene composite for low-k dielectric applications
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Characterization study of flax/strontium titanate/polypropylene composite for low-k dielectric applications

机译：亚麻/钛酸锶/聚丙烯复合材料对低k介电应用的特征研究

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摘要

This study demonstrates the characterization of flax fiber reinforced polypropylene-strontium titanate composite and dielectric study for low-k dielectric applications. The composite was studied through thermal, morphological, and compositional aspects. Thermogravimetry analysis, differential scanning calorimetry shows a higher thermal stability with low glass transition temperatures and lowered decomposition temperatures of 375 degrees C. The morphological study on the surface of this composites had revealed closely packed layers of fiber, ceramic and polymer matrix, which deduces the increased dielectric constants between 3.92 and 4.25 after the addition of strontium titanate. The dielectric constant was found to be significantly higher with a 78% increase with strontium titanate inclusion at relaxation frequencies between 1 kHz and 2 MHz, respectively. Besides, the dielectric property data showed that dielectric permittivity of 4.2 (low k) with the inclusion of natural fibers and ceramic at higher frequencies and lowered corresponding dielectric losses. The infrared spectroscopy results also show a reduction in hydroxyl groups and confirms the presence of bonds that are subjected to high interfacial bonding.
机译：本研究展示了亚麻纤维增强聚丙烯钛酸锶复合材料的特性，以及低k电介质应用的电介质研究。从热、形态和成分方面对复合材料进行了研究。热重分析、差示扫描量热分析显示，在玻璃化转变温度较低、分解温度较低（375℃）的情况下，具有较高的热稳定性。对该复合材料表面的形态研究表明，纤维、陶瓷和聚合物基体的紧密堆积层，由此推断，添加钛酸锶后，介电常数在3.92和4.25之间增加。在弛豫频率分别为1 kHz和2 MHz时，钛酸锶包裹体的介电常数显著增加78%。此外，介电性能数据显示，在较高频率下，含有天然纤维和陶瓷的介电常数为4.2（低k），并降低了相应的介电损耗。红外光谱结果还显示羟基减少，并证实存在高界面结合的键。

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