Golanski L, Guiot A, Rouillon F, Pocachard J, Tardif F
CEA-Grenoble, Liten, Laboratory of Tracer Technologies, France.
Hum Exp Toxicol. 2009 Jun;28(6-7):353-9. doi: 10.1177/0960327109105157.
In this study, different conventional personal protection devices (fibrous filters, cartridges for respirators, protective clothing, and gloves) well qualified for micron particles were tested with graphite nanoparticles ranging from 10 to 100 nm (electrical mobility diameter). For this purpose, two specific test benches were designed: one for filter-based devices which are tested under a controlled air flow and other for gloves and protective clothing based on the "through diffusion method." The penetration versus particle size shows for most tested filter media the behavior predicted by the theoretical Brownian capture: penetration decreases when particle diameter decreases. No thermal rebound was detected until 10 nm for graphite nanoparticles. Protective clothes were tested by two methods and same trends were obtained. Nonwoven fabrics (air-tight materials) are much more efficient against nanoparticles than cotton and paper. Gloves tested by "through diffusion technique," in static condition seem to efficiently protect against graphite nanoparticles in spite of their important porosity.
在本研究中，对适用于微米级颗粒的不同传统个人防护装备（纤维过滤器、呼吸器滤芯、防护服和手套）进行了测试，测试对象为粒径范围在10至100纳米（电迁移直径）的石墨纳米颗粒。为此，设计了两个特定的测试台：一个用于基于过滤器的装备，在可控气流下进行测试；另一个用于基于“透过扩散法”的手套和防护服测试。穿透率与粒径关系表明，对于大多数测试的过滤介质，呈现出理论布朗捕集所预测的行为：粒径减小时，穿透率降低。对于石墨纳米颗粒，直至粒径为10纳米时均未检测到热反弹现象。采用两种方法对防护服进行了测试，得到了相同的趋势。无纺布（气密材料）对纳米颗粒的防护效果远优于棉花和纸张。通过“透过扩散技术”在静态条件下测试的手套，尽管孔隙率较大，但似乎能有效防护石墨纳米颗粒。
