Bench-scale tribocharging of polyethylene: Role of gas type, temperature and relative humidity

IF 2.1 4区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

Journal of Electrostatics Pub Date : 2026-03-01 Epub Date: 2026-01-29 DOI:10.1016/j.elstat.2026.104254

Talha Mukarram Syed, Grissel Myrtle Fernandes, Nikhil Sridhar, Poupak Mehrani

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引用次数: 0

Abstract

Bench-scale shake tests were conducted using linear low-density polyethylene (LLDPE) resin in controlled environments of argon, nitrogen, and ambient air to investigate how gas type (argon vs. nitrogen), relative humidity (10–75 % RH), and temperature (23 and 65 °C) affect charge buildup. Tests involved single and multiple particles shaken in an aluminum cup, and a stainless-steel cup coated with LLDPE resin. Under low-humidity (RH < 3 %) conditions, charge accumulation with nitrogen was 50 % higher than with argon, due to differences in the gases' dielectric strengths. Ambient air with an RH of ∼38 % resulted in a saturation charge like argon, as increased moisture diminished charge buildup. Across an RH range of 10–75 %, minimal variation in average particle charge was observed below 40 %, but higher relative humidities caused a notable decline in charge accumulation. Elevated temperatures decreased charge buildup under nitrogen, while argon showed no significant change, highlighting a gas-dependent response to temperature.

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聚乙烯的台架摩擦充注：气体类型、温度和相对湿度的作用

使用线性低密度聚乙烯（LLDPE）树脂在氩气、氮气和环境空气的受控环境中进行了台架振动试验，以研究气体类型（氩气vs氮气）、相对湿度（10 - 75% RH）和温度（23和65℃）对电荷积累的影响。测试包括在铝杯和涂有LLDPE树脂的不锈钢杯中摇晃单个和多个颗粒。在低湿度（RH < 3%）条件下，由于气体介电强度的差异，氮气的电荷积累比氩气高50%。相对湿度为~ 38%的环境空气会导致饱和电荷，如氩气，因为增加的水分会减少电荷的积累。在10 - 75%的相对湿度范围内，在40%以下观察到的平均粒子电荷变化最小，但较高的相对湿度导致电荷积累显著下降。升高的温度降低了氮气的电荷积累，而氩气则没有明显的变化，突出了气体对温度的依赖反应。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Electrostatics 工程技术-工程：电子与电气

CiteScore

4.00

自引率

11.10%

发文量

审稿时长

49 days

期刊介绍： The Journal of Electrostatics is the leading forum for publishing research findings that advance knowledge in the field of electrostatics. We invite submissions in the following areas: Electrostatic charge separation processes. Electrostatic manipulation of particles, droplets, and biological cells. Electrostatically driven or controlled fluid flow. Electrostatics in the gas phase.