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首页> 外文期刊>Journal of Applied Polymer Science >Effect of electron beam irradiation on mechanical and dielectric properties of polypropylene films
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Effect of electron beam irradiation on mechanical and dielectric properties of polypropylene films

机译：电子束辐照对聚丙烯薄膜力学和介电性能的影响

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摘要

In the present investigation the effect of electron beam irradiation on the mechanical properties of thin films of Polypropylene (PP) were measured. The dielectric properties of PP films were carried out in the frequency range from 20 Hz to 1 MHz at various DC bias potential. All measurements were carried out at room temperature. It is found that the electron beam irradiation caused an increase in Young's Modulus of PP film dose of up to 70 kGy were applied, but tensile strength and % elongation at break were found to be decrease with the increasing dose rate. The significant changes were observed in the case of dielectric constant and dielectric loss for electron irradiated PP films. The DSC results indicate that irradiation on PP films changes the thermal behavior. Minor differences in FTIR spectra were observed after irradiation treatment. It is observed that, the effect of radiation damage results in improvement in mechanical strength of the films. The increased dielectric constant and dependence of the bias voltage in case of irradiated and unirradiated PP films has been reported. It is suggested that, the PP films modified with the electron beam irradiation can be used as a good dielectric material for different electronic devices.
机译：在本研究中，测量了电子束辐照对聚丙烯（PP）薄膜机械性能的影响。 PP薄膜的介电性能是在20 Hz至1 MHz的频率范围内，各种直流偏置电势下进行的。所有测量均在室温下进行。发现电子束辐照引起PP膜的杨氏模量的增加高达70kGy，但是发现随着剂量率的增加，拉伸强度和断裂伸长率％降低。在电子辐照的PP薄膜的介电常数和介电损耗的情况下，观察到了显着变化。 DSC结果表明，在PP膜上的辐照改变了热行为。辐照处理后，观察到FTIR光谱的微小差异。观察到，辐射损伤的作用导致膜的机械强度提高。已经报道了在辐照和未辐照的PP膜的情况下介电常数增加和偏压的依赖性。建议采用电子束辐照改性的PP薄膜可以用作不同电子设备的良好介电材料。

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