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首页> 外文期刊>The Journal of the Textile Institute. 1, Fibre Science and Textile Technology >Novel Process for Manufacturing Electret from Polypropylene Nonwoven Fabrics
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Novel Process for Manufacturing Electret from Polypropylene Nonwoven Fabrics

机译：用聚丙烯无纺布制造驻极体的新工艺

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摘要

In this work, a novel procedure for manufacturing an electret was designed, and the relationship between the surface voltage and other variables elucidated. The charge decay of the nonwoven electret over six weeks was also investigated. The new process quickly charges the dielectric to a voltage of between 10 and 30 kV at temperatures of 25℃ to 90℃ and various charging times. The parameters of the process, including the surface temperature of the nonwoven, the charging time and the charging voltage were varied. A novel electrical mechanism that can quickly charge the dielectric into an electret under a high electric field was designed to save energy and protect the environment After the dielectric of polypropylene nonwoven was charged, the nonwoven exhibited a low pressure drop and high filtering efficiency. The manufacturing procedure was very easy to implement. Additionally, the power consumed by this electrical mechanism was almost 10% of that used by a traditional dust collector. Hence, this mechanism generated an electret filter that saved energy, had a low pressure drop and highly efficient filtration. The theoretical models were analyzed and the application of the process modified according to the experimental results. The surface voltage of the dielectric increased linearly with charging time. The optimal surface voltage was 19.99 kV when the charging voltage was 30 kV; the surface temperature was 50℃, and the charging time was 10 seconds.
机译：在这项工作中，设计了一种制造驻极体的新颖方法，并阐明了表面电压与其他变量之间的关系。还研究了非织造驻极体在六周内的电荷衰减。新工艺可在25℃至90℃的温度和不同的充电时间下，快速将电介质充电至10至30 kV的电压。改变工艺参数，包括非织造物的表面温度，充电时间和充电电压。设计了一种新颖的电气机制，可以在高电场下将电介质快速充电到驻极体中，以节省能源并保护环境。在聚丙烯无纺布的电介质带电后，该无纺布显示出低压降和高过滤效率。制造过程非常容易实现。此外，该电动机构消耗的功率几乎是传统集尘器所用功率的10％。因此，该机制产生了一种驻极体过滤器，该驻极体过滤器节省了能量，低压降和高效过滤。分析了理论模型，并根据实验结果修改了该方法的应用。电介质的表面电压随充电时间线性增加。当充电电压为30 kV时，最佳表面电压为19.99 kV；表面温度为50℃，充电时间为10秒。

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