Development of a Permeation Panel to Test Dermal Protective Clothing Against Sprayed Coatings
Development of a Permeation Panel to Test Dermal Protective Clothing Against Sprayed Coatings
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DOI：
10.1093/annhyg/meq081
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发表时间：
2011-03-01
影响因子：
--
通讯作者：
Dills, Russell
中科院分区：
文献类型：
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作者：
Ceballos, Diana M.;Yost, Michael G.;Dills, Russell
方法：开发了一种新型渗透面板来评估真皮防护服。使用该设备，可以在典型的喷涂应用条件下评估多达八种测试材料。由1-(2-吡啶基)-哌嗪(2-PP)涂覆的玻璃纤维过滤器或比色SWYPE(TM)垫组成的固体收集介质被放置在测试材料后面以捕获渗透物。随后使用改进的 OSHA42/PV2034 方法对 2-PP 涂层过滤器进行分析。 SWYPE 的颜色变化提供了突破时间的直接现场估计。此外，将聚四氟乙烯过滤器安装在渗透池附近，以测量施加到面板上的透明涂层的质量并评估负载均匀性。本研究评估了异氰酸酯在固定时间（喷涂后 30 分钟）和一段时间内（喷涂后 6-91 分钟）通过 0.10-0.13 毫米乳胶手套材料的渗透情况。结果：单体 1,6-六亚甲基二异氰酸酯 (HDI) 和异佛尔酮二异氰酸酯 (IPDI) 渗透通过（0.10-0.13 毫米）乳胶手套典型手套使用条件下的材料（30 分钟）。乳胶手套材料立即表现出突破性，渗透率为2.9 ng min(-1) cm(-2)。 HDI 和 IPDI 的低聚形式没有渗透到乳胶手套材料中。 71 +/- 5 华氏度下的喷涂相当均匀（每 5 厘米 (2) 干燥透明涂层重量为 33.7 +/- 8 毫克）。结论：渗透板是评估真皮防护服针对聚合材料性能的可行方法。薄（0.10-0.13 毫米）乳胶手套被确定对透明涂层中常见的异氰酸酯无效。由于这种类型的手套在汽车车身修理厂中经常使用，因此异氰酸酯暴露的可能性值得关注。需要对其他皮肤防护服材料和其他透明涂层配方进行渗透测试，以就替代材料提出建议。
Methods: A novel permeation panel was developed to assess dermal protective clothing. With this apparatus, up to eight test materials may be evaluated under typical-spray application conditions. Solid collection media comprised of 1-(2-pyridyl)-piperazine (2-PP)-coated fiberglass filters or colorimetric SWYPE (TM) pads were placed behind test materials to capture permeants. The 2-PP-coated filters were subsequently analyzed using a modified OSHA42/PV2034 method. Color change in the SWYPEs provided an immediate field estimate of breakthrough time. In addition, Teflon filters were mounted proximal to the permeation cells to measure the mass of clear coat applied to the panel and to evaluate loading homogeneity. This study evaluated the permeation of isocyanates through 0.10-0.13 mm latex glove material at a fixed time (30 min post-spraying) and over a time course (6-91 min post-spraying).Results: Monomers 1,6-hexamethylene diisocyanate (HDI) and isophorone diisocyanate (IPDI) permeated through (0.10-0.13 mm) latex glove material under typical glove use conditions (30 min). The latex glove material exhibited immediate breakthrough, with a permeation rate of 2.9 ng min(-1) cm(-2). The oligomeric forms of HDI and IPDI did not permeate the latex glove material. The spray application at 71 +/- 5 degrees F was fairly homogeneous (33.7 +/- 8 mg weight of dry clear coat per 5 cm(2)).Conclusions: The permeation panel is a viable method to assess dermal protective clothing performance against polymerizing materials. Thin (0.10-0.13 mm) latex gloves were determined to be ineffective barriers to the isocyanates commonly found in clear coats. Because this type of glove is used frequently in auto body shops, the potential for isocyanate exposure is of concern. Permeation tests with other dermal protective clothing materials and other clear coat formulations are needed to make recommendations about alternative materials.