ABSTRACT Electrostatic discharge-sensitive devices (ESDS) consist of electronic systems that are easily damaged by electrostatic fields or discharges. To safely stow and transit the ESDS, Bosch Car Multimedia S.A. resorts to thermoformed trays with a specific design for each product configuration. Although efficient, the solutions’ specificity arose logistic issues that created the need for an alternative approach. This paper reports the investigation for the development of a flexible tray, based on an electrostatic-dissipative integral skin foam. First, a commercial integral skin polyurethane foam was evaluated by varying components mixing ratio. Once achieved a suitable combination of hardness and density, post-formulation additives (colour and anti-static) were investigated. Free expansion foaming stages were assessed and cured foams were characterised in terms of electrostatic discharge protection. Moulded foams with variable patterns were developed and evaluated considering the application purpose requirements. Real-scale prototypes of the most adequate concept design were produced and analysed.

中文翻译：

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开发用于静电放电应用的功能化泡沫

摘要 静电放电敏感器件 (ESDS) 由容易被静电场或放电损坏的电子系统组成。为了安全地装载和运输 ESDS，Bosch Car Multimedia SA 对每种产品配置采用具有特定设计的热成型托盘。尽管有效，但解决方案的特殊性引发了物流问题，因此需要另一种方法。本文报告了对基于静电耗散整体表皮泡沫的柔性托盘开发的调查。首先，通过改变组分混合比来评估商业连皮聚氨酯泡沫。一旦实现了硬度和密度的合适组合，就研究了配方后添加剂（颜色和抗静电）。评估了自由膨胀发泡阶段，并在静电放电保护方面表征了固化泡沫。考虑到应用目的要求，开发和评估了具有可变图案的模塑泡沫。生产和分析了最合适的概念设计的真实比例原型。