With renewed interest in food packaging materials that can be both recyclable and compostable and the environmental concerns about plastic pollution in the terrestrial and aquatic ecosystems, molded fiber food packaging is experiencing an unprecedented demand around the globe. However, the phase-out of per- and polyfluoroalkyl substances (PFASs), commonly used as a water/grease resistant agent in food contact molded materials in many jurisdictions, has posed a significant challenge to the industry. This perspective outlines a recently developed solution to replace PFASs through the application of a layer of cellulose nanofibrils on the surface of molded fiber objects.

中文翻译：

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不含 PFAS（全氟烷基物质和多氟烷基物质）的模塑纤维：未来已经到来。

随着人们对可回收和可堆肥的食品包装材料重新产生兴趣，以及对陆地和水生生态系统塑料污染的环境担忧，模塑纤维食品包装在全球范围内面临着前所未有的需求。然而，全氟烷基物质和多氟烷基物质 (PFAS) 的逐步淘汰给该行业带来了重大挑战。全氟烷基物质和多氟烷基物质在许多司法管辖区通常用作食品接触模塑材料中的防水/防油剂。该观点概述了最近开发的一种解决方案，通过在模制纤维物体表面应用一层纤维素纳米纤丝来替代 PFAS。