The National Research Centre for the Working Environment, Denmark.
Environ Sci Technol. 2009 Oct 15;43(20):7824-30. doi: 10.1021/es9019468.
Here, we present emission data on VOCs and particles emitted during simulated use of four commercial nanofilm spray products (NFPs) used for making easy-to-clean or self-cleaning surfaces on floors, ceramic tiles, and windows. The aim was to characterize the emitted VOCs and to provide specific source strength data for VOCs and particles released to the airduring use of the products. Containers with NFP were mounted on a spray-stand inside a closed stainless steel chamber with no air exchange. NFPs were sprayed in amounts corresponding to 1 m2 surface toward a target plate at a distance of 35 cm. Released VOCs were measured by a combination of air sampling on Tenax TA adsorbent followed by thermal desorption GC/MS and GC/FID analysis and real time measurements using a miniature membrane inlet mass spectrometer. Particles were measured using a fast mobility particle sizer and an aerosol particle sizer. A number of VOCs were identified, including small alcohols, ketones and ethers, chlorinated acetones, a perfluorinated silane, limonene, and cyclic siloxanes. The number of generated particles was on the order of 3 x 10(8) to 2 x 10(10) particles/m3 per g sprayed NFP and were dominated by nanosize particles.
在这里，我们提出了在模拟使用四种商业纳米薄膜喷雾产品（NFPs）时排放的挥发性有机化合物（VOCs）和颗粒的数据，这些产品用于使地板、瓷砖和窗户表面易于清洁或自清洁。目的是描述排放的 VOCs，并为使用产品时向空气中释放的 VOCs 和颗粒提供特定的源强数据。装有 NFP 的容器安装在一个封闭的不锈钢室内的喷雾架上，没有空气交换。NFPs 以对应于 1 m2 表面的量喷涂到距离 35 cm 的目标板上。释放的 VOCs 通过在 Tenax TA 吸附剂上进行空气采样，然后进行热解吸 GC/MS 和 GC/FID 分析以及使用微型膜入口质谱仪进行实时测量来测量。使用快速迁移率颗粒计数器和气溶胶颗粒计数器测量颗粒。鉴定出许多 VOC，包括小醇、酮和醚、氯化丙酮、全氟硅烷、柠檬烯和环状硅氧烷。生成的颗粒数约为每克喷洒的 NFP 产生 3 x 10(8)到 2 x 10(10)个颗粒/m3，主要是纳米级颗粒。
