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首页> 外文会议>Vinyltec 2004 >RESIDUAL VINYL CHLORIDE LEVELS IN U.S. PVC RESINS AND PRODUCTS-HISTORICAL PERSPECTIVE AND UPDATE1
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RESIDUAL VINYL CHLORIDE LEVELS IN U.S. PVC RESINS AND PRODUCTS-HISTORICAL PERSPECTIVE AND UPDATE1

机译：美国PVC树脂和产品中的残留氯乙烯含量-历史的观点和进展1

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摘要

The vinyl industry made dramatic changes in the production of polyvinyl chloride (PVC) resin inrnthe 1970s to comply with regulations governing workplace exposure and environmentalrnemissions of vinyl chloride monomer (VC or VCM), after it was recognized that vinyl chloridernwas a human carcinogen. These changes required extensive and costly modifications to thernmonomer and polymer production processes and the development of resin formulations fromrnwhich residual monomer could be more easily removed from the polymerized matrix.rnReductions of vinyl chloride emissions from PVC production facilities continued over the pastrntwo decades driven by both voluntary initiatives to optimize the manufacturing process and byrnregulatory requirements, such as state operating permit limits related to incremental productionrnexpansion or modification at existing facilities.rnSurveys of recent resin data, reviews of pipe product certification reports, and recent foodrnpackage testing by the U.S. Food and Drug Administration (FDA) show that current residualrnvinyl chloride monomer (RVCM) levels in all grades of PVC resin typically are significantlyrnbelow applicable requirements and that resulting fabricated products are typically at non-detectrnlevels to very low parts-per-billion (ppb) levels.
机译：在认识到氯乙烯是人类致癌物之后，乙烯基工业在1970年代对聚氯乙烯（PVC）树脂的生产进行了重大改变，以遵守有关工作场所暴露和氯乙烯单体（VC或VCM）的环境排放法规。这些变化要求对单体和聚合物生产工艺进行大量且昂贵的修改，并需要开发树脂配方，从而可以更轻松地从聚合的基质中去除残留单体。过去二十年来，在自愿和自愿的共同推动下，PVC生产设备的氯乙烯排放量持续减少旨在优化生产流程和法规要求的举措，例如与增加生产或现有设施进行改造相关的州运营许可限制。最新树脂数据的调查，管道产品认证报告的审查以及美国食品药品监督管理局的最新食品包装测试（FDA）显示，目前所有等级的PVC树脂中残留的氯乙烯单体（RVCM）的水平通常都明显低于适用要求，并且制成的产品通常处于非检测水平，非常低的十亿分之一（ppb）的水平s。

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  • 来源
    《Vinyltec 2004》|2004年|1-7|共7页
  • 会议地点 Iselin NJ(US)
  • 作者

    Frank E. Borrelli; Peter L. de la Cruz; Robert A. Paradis;

  • 作者单位

    The Vinyl Institute, Inc. is a member of American Plastics Council, a business unit of American Chemistry Council;

    rnKeller and Heckman LLP;

    rnFormosa Plastics Corp.;

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  • 正文语种 eng
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