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Long-Term Durability of Polyester Water Pipe in High Chloride Environments

机译:高氯环境下聚酯水管的长期耐用性

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摘要

The need for a corrosion resistant barrier liner in Fiberglass Reinforced Polyester (FRP) Pipe used in water and waste water applications is often misunderstood. This can result in over specification and unnecessary expense for the end user. Different corrosion or chemical attack mechanisms exist for different chemical exposures and temperatures. The primary degradation mechanisms are defined by Arrhenius law for the rate of a chemical reaction and Fick's law for the rate of diffusion. This paper presents exposure test data and discusses how Arrhenius and Fick's law drive the rate and type of degradation in water, waste water and sewer applications.
机译:人们常常误解了在水和废水应用中使用的玻璃纤维增​​强聚酯(FRP)管中的耐腐蚀隔离衬里的需求。这可能会导致规格超标和最终用户不必要的支出。对于不同的化学暴露和温度,存在不同的腐蚀或化学侵蚀机制。主要的降解机理由Arrhenius律定义为化学反应的速率,而Fick律则定义为扩散的速率。本文介绍了暴露测试数据,并讨论了阿伦尼乌斯和菲克定律如何驱动水,废水和下水道应用中降解的速度和类型。

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