...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Environmental Science & Technology >Release of Side-Chain Fluorinated Polymer-Containing Microplastic Fibers from Functional Textiles During Washing and First Estimates of Perfluoroalkyl Acid Emissions
【24h】

Release of Side-Chain Fluorinated Polymer-Containing Microplastic Fibers from Functional Textiles During Washing and First Estimates of Perfluoroalkyl Acid Emissions

机译：洗涤过程中功能纺织品释放侧链含氟聚合物的超细塑料纤维和全氟烷基酸排放量的初步估算

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The quantity and composition of fibers released from functional textiles during accelerated washing were investigated using the GyroWash method. Two fabrics [polyamide (PA) and polyester/cotton (PES/CO)] were selected and coated with perfluorohexane-based side-chain fluorinated polymers. Fibers released during washing ranged from similar to 10 to 500 mu with a similar distribution for the two textile types. The PA-based fabric released considerably more fibers >20 mu m in length compared to the PES/CO-based fabric (>1000/GyroWash for PA vs similar to 200/GyroWash fibers for PES/CO). After one GyroWash (2-15 domestic washes), fibers that contained approximately 240 and 1300 mu g total fluorine per square meter (mu g F/m(2)) were released from the PA and PES/CO fabrics, respectively. Current understanding of the fate of microplastic fibers suggests that a large fraction of these fibers reach the environment either in effluent wastewater or sewage sludge applied to land. In the environment, the fluorinated side chains will be slowly cleaved from the backbone of the side-chain fluorinated polymers coated on the fibers and then transformed into short-chain perfluoroalkyl acids. On the European scale, emissions of up to similar to 0.7 t of fluorotelomer alcohol (6:2 FTOH) per year were estimated for outdoor rain jackets treated with fluorotelomer-based side-chain fluorinated polymers.
机译：使用GyroWash方法研究了在加速洗涤过程中从功能性纺织品释放的纤维的数量和组成。选择两种织物[聚酰胺（PA）和聚酯/棉（PES / CO）]并涂上全氟己烷基侧链氟化聚合物。洗涤过程中释放的纤维范围从大约10到500亩不等，两种纺织品的分布也相似。与基于PES / CO的织物相比，基于PA的织物释放出更多的纤维，长度> 20μm（PA大于1000 / GyroWash，而PES / CO类似于200 / GyroWash纤维）。进行一次GyroWash（2-15次家用洗涤）后，分别从PA和PES / CO织物中释放出的纤维每平方米包含约240和1300μg总氟（μg F / m（2））。当前对微塑料纤维的命运的了解表明，这些纤维中的很大一部分以废水或施加于土地的污水污泥的形式到达环境。在环境中，氟化侧链将缓慢地从涂覆在纤维上的侧链氟化聚合物的骨架上切下，然后转化为短链全氟烷基酸。在欧洲范围内，估计每年使用基于氟调聚物的侧链氟化聚合物处理的户外雨衣的排放量最多接近0.7吨的氟调聚物醇（6：2 FTOH）。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号