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首页> 外文期刊>Journal of Applied Polymer Science >Effects of the gamma-irradiation strength and basalt additive content on the mechanical performance and dielectric response of polypropylene films
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Effects of the gamma-irradiation strength and basalt additive content on the mechanical performance and dielectric response of polypropylene films

机译：γ-辐照强度和玄武岩添加剂含量对聚丙烯薄膜机械性能和介电响应的影响

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摘要

In this study, we investigated the effects of high-dose gamma-ray irradiation on the mechanical and dielectric properties of polypropylene (PP)-basalt thick films. PP-basalt thick-film composites with various basalt contents from 0.5 to 10.0% were prepared by a hot-press method. The samples were exposed to gamma radiation at different doses in the range 3-25 kGy. The mechanical properties of the samples, such as the Young's modulus, tensile strength, percentage strain at break, and energy at break, were examined in the context of the gamma-irradiation process. Although the maximum elasticity was obtained for the unirradiated 0.5% basalt-added composite, the 6 kGy gamma-irradiated PP-1.0% basalt sample exhibited the highest elasticity properties among all of the composites. The best mechanical properties, including the ultimate tensile strength and energy at break values, were achieved for the 12 kGy gamma-irradiated neat PP. The dielectric properties of the PP-basalt composites were also investigated in the 100 Hz to 15 MHz frequency region at room temperature. According to the analysis of the dielectric properties, the 3 kGy gamma-irradiated neat PP may have potential for microelectronic device applications that require low dielectric constant and dielectric loss materials. (c) 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47414.
机译：在这项研究中，我们研究了高剂量γ射线照射对聚丙烯（PP）的厚膜的机械和介电性能的影响。通过热压方法制备具有0.5至10.0％的各种玄武岩含量的PP-BaSALT厚膜复合材料。将样品暴露于3-25kGy范围内的不同剂量的γ辐射。在γ-辐照过程的背景下，研究了样品的机械性能，例如杨氏模量，抗拉强度，断裂率的百分比应变，并且在断裂时的能量。尽管在未照射的0.5％玄武岩添加的复合材料获得最大弹性，但是6kGyγ辐照的PP-1.0％玄武岩样品在所有复合材料中表现出最高的弹性特性。为12kGyγ辐照的整洁PP实现了最佳的机械性能，包括断裂值处的最终拉伸强度和能量。在室温下，还在100Hz至15MHz频率区域中研究了PP玄武岩复合材料的介电性质。根据介电性质的分析，3克尔伽马辐照的纯PP可能具有需要低介电常数和介电损耗材料的微电子器件应用的潜力。 （c）2019 Wiley期刊，Inc.J.Phill。聚合物。 SCI。 2019,136,47414。

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