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

项目摘要 PolyK Technologies，LLC SBIR第一阶段 COVID-19的爆发导致N95口罩的需求激增，它可以有效过滤 超过95%的冠状病毒。尽管巨大的供需缺口暂时被抑制住了， 疫苗的使用、病毒变异和阻碍人们接种疫苗的错误信息， 对抗新冠病毒的复杂性。目前，感染率开始急剧上升，在几个 国家和面具的任务正在恢复。目前还不清楚口罩需求的日益增加是否 可以实现。 静电过滤器是使N95口罩有效防止微小空气传播的关键元件 包含minats，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方面的经验启发，本项目将为N95开发一种新型压电/热电滤波器 面具压电/热电滤波器可以在充电期间连续地产生大量的表面电荷。 呼吸，因此即使在反复消毒后也能有效过滤微小的COVID病毒 和灭菌。该项目将一劳永逸地解决N95口罩和类似个人防护设备的短缺问题， 提供真正的可重复使用的压电口罩，具有高过滤效率，使用时间长，可再生 能力（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).