摘要:
全氟辛烷磺酸盐(PFOS)具有低表面张力、良好的热稳定性和化学稳定性等特性,作为含氟表面活性剂被广泛应用于卫生、消防与电镀等工业领域。但是,PFOS具有高持久稳定性,会在环境、人体与动物组织中富集,因此2009年《斯德哥尔摩公约》将PFOS列为新增POPs受控物质。目前,我国还在生产和使用PFOS,如何对其进行有效控制,削减并逐渐替代PFOS及其衍生物,是我国面临的巨大挑战。在介绍了PFOS的生产与应用现状基础上,结合其替代技术,提出了削减和逐步替代PFOS的策略。
Abstract:
Perfluorooctane sulfonate (PFOS) has low surface tension, good thermal and chemical stability and so on, it has been used in health, fire, electroplating industry, etc as fluorine surfactant. PFOS has the nature of high stability in the environment, making it strongly accumulated in the environment, human and animal tissues. It was listed in Stockholm Convention as high-concern POPs in 1999. At present, China is still producing and using PFOS. To effectively reduce the production, cut and gradually replace PFOS and its derivatives with substitutes are big challenges for China. In this paper, the production and application of PFOS in China were summarized. Alternative technologies to reduce and to gradually substitute PFOS were proposed.
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