Abstract

This work deals with the preparation of biocomposites from low-density polyethylene modified by bio-fillers such as fish bones and fish scale and with the study of their dielectric permittivity and dielectric loss depending on the temperature and on the amount of bio-fillers, before and after irradiation with ultraviolet rays. The studies were carried out under the following conditions: a temperature range of 290–390 K. (The dielectrical parameters were carring out before and after UV radiation in temperature range 290–390 K.) UV rays at a dose of 150 Mnit, and duration of 50, 70, 100, and 150 h, in composites with 3, 5, 7, 10, and 15 vol % bio-fillers. The samples were irradiated at room temperature (300 K), with a DRSh-500 lamp. It was found that the dielectric constant of obtained biocomposites during irradiation increases while the dielectric loss decreases. It was revealed that the observed changes in the dielectric constant and in the dielectric loss depending on the temperature and on the volume content of bio-fillers, and UV irradiation time, can be accounted for by a change in the physical structure of the polymer matrix and in the boundary layer of the composition components under the influence of external factors.

中文翻译：

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紫外线辐射对生物复合材料介电性能的影响

摘要

这项工作涉及由低密度聚乙烯（由鱼骨和鱼鳞等生物填料改性）制备生物复合材料，并研究取决于温度和生物填料量的介电常数和介电损耗。以及紫外线照射后。该研究是在以下条件下进行的：温度范围为290–390K。（介电参数在温度范围为290–390 K的紫外线辐射之前和之后都会产生）。紫外线的剂量为150 Mnit，并且含3、5、7、10和15％（体积）生物填充物的复合材料中的持续时间为50、70、100和150小时。用DRSh-500灯在室温（300K）下照射样品。发现在辐射期间获得的生物复合材料的介电常数增加而介电损耗减少。结果表明，所观察到的介电常数和介电损耗的变化取决于温度和生物填料的体积含量以及紫外线照射时间，这可以通过改变聚合物基质的物理结构来解决。并在外在因素的影响下在组成成分的边界层。