Regenerative face mask with long shelf life and long service time for effective coronavirus filtration

项目摘要 PolyK Technologies，LLC SBIR I期 新冠肺炎爆发致能有效过滤的N95口罩需求暴增 超过95%的冠状病毒。尽管巨大的供需缺口暂时受到了 疫苗的使用、病毒的变异和错误的信息阻碍了人们接种疫苗Add 对抗冠状病毒的战斗变得更加复杂。目前，感染率开始在几个月内急剧上升 国家，面具授权正在恢复。目前尚不清楚口罩需求是否即将增加 都可以实现。 静电过滤器是使N95面罩有效对抗微小空气污染的关键要素 但也限制了N95口罩的使用时间。N95口罩必须丢弃 在日常使用后(一旦表面电荷消散)，不能通过清洁或消毒重新使用。 受我们在压电聚合物领域经验的启发，该项目将为N95开发一种新型的压电/热释电滤波器 面具。压电/热释电滤光片可以在以下过程中连续产生大量表面电荷 呼吸，因此即使在重复消毒后也能有效过滤微小的COVID病毒 和绝育。该项目将通过以下方式一劳永逸地解决N95口罩和类似个人防护设备的短缺问题 提供真正的可再生压电口罩，过滤效率高，使用时间长，可再生 性能(消毒后可重复使用，而不牺牲过滤性能)。

Project Summary PolyK Technologies, LLC SBIR Phase I The outbreak of COVID-19 causes a soaring increase in demand of N95 masks, which can effectively filter out over 95% of coronavirus. Despite the dramatic supply-demand gap has been temporarily suppressed by the use of vaccines, the virus mutation and the misinformation holding back people from receiving the vaccine add complexity to the battle against the COVID virus. Currently, the infection rate begins to rise sharply in several states, and the mask mandate is being reinstated. It is unclear whether the looming increase of mask demands can be fulfilled. The electrostatic filter is the key element rendering N95 masks effective against minuscular airborne containminats, but also the one limiting the service time of the N95 masks. N95 masks have to be discarded after daily use (once surface charges are dissipated) and cannot be resued by cleaning or disinfection. Inspired by our experience in piezoelectric polymers, this project will develop a novel piezo/pyro filter for N95 masks. The piezo/pyro filters can generate can continuously generate substantial surface charges during breathing, therefore enabling effective filtration against minuscular COVID virus even after repetitive sanitization and sterilization. This project will address any shortage of N95 masks and similar PPE once and for all, by providing genuine resuable piezo masks with with high filtration efficacy, long service time, and regeneration capability (reusable after disinfection without sacrificing the filtration performance).