New generation of potable Noryl~(TM) resin grades for Fluid Engineering

摘要

Noryl resins include blends containing Polyphenylene Ether (PPE) and crystal clear Polystyrene (ccPS) and/or High Impact Polystyrene (HIPS). These resins have been used in fluid engineering applications already since 1969 in various applications (water meter housings, impellers, faucets, pumps, etc.) due to its excellent hydrolytic stability and low water absorption. During the years the applications requirements changed and new applications evolved as well as changes in legislation happened (food contact & drinking water). For a high demanding application (hydro-block or manifold) Noryl* resin grade GFN1630V has been successfully used, however due to changes in legislation a re-design was needed in order to be compliant with future food contact and drinking water requirements. The development and more specifically the testing needed to come to the optimal formulation selection will be discussed.