Improved breathability and heat transfer of a microporous ePTFE membrane

消防员暴露在恶劣的条件下，包括火焰，闪光，重负荷，高水平的心血管活动和极端高温。这些综合作用可能导致热生理应激和热应激。热应激和热相关疾病是消防员伤亡的主要原因。为了应对当前的挑战，重要的是要开发更好的技术，以管理皮肤和防护服之间产生的微气候中的热量积聚。其中一个策略是提高防潮层的透气性，防潮层是保护制服中的防水中间层，可以防止热水和化学品。事实上，这种湿气屏障的存在限制了身体湿气的排出，然后阻碍了身体的蒸发冷却。我们提出了新的表面处理，使防潮层更亲水，以获得更高的水蒸气渗透性，从而透气性。

Firefighters are exposed to severe conditions including flames, flash fire, heavy load, high level ofcardiovascular activity and extreme heat. These combined effects may lead to thermophysiological stress andheat stress. Heat stress and heat-related illness are major causes of casualties for firefighters. In response to thiscurrent challenge, it is important to develop better technologies in order to manage heat build-up in themicro-climate created between the skin and the protective uniform. One of the strategies consists of improvingthe breathability of the moisture barrier, the waterproof intermediate layer in the protective uniform thatprotects against hot water and chemicals. In fact, the presence of this moisture barrier limits the evacuation ofthe body moisture then impedes evaporative cooling of the body. We propose new surface treatments to renderthe moisture barrier more hydrophilic in order to obtain higher water vapor permeability and so breathability.