【摘要】 针对低油水界面张力（IFT）下柴油中乳化水分离难题，探究了聚对苯二甲酸乙二醇酯（PET）纤维直径与含量对材料油水分离性能的影响。通过造纸湿法成型工艺制备了PET/玻璃纤维油水分离材料，并开展油水分离性能测试。结果表明，当材料中2μm直径PET纤维含量为20%时，材料的油水分离效率达90%，压降为3.3 kPa，材料下游中值水滴粒径（D50）约5μm。本研究展现了PET纤维在低IFT柴油/水分离材料中的应用价值，为材料设计提供了理论支撑与工程化指导。更多还原

【Abstract】 To address the challenge of separating emulsified water from diesel fuel under low interfacial tension(IFT) conditions, this study investigated the influence of polyethylene terephthalate(PET) fiber diameter and content on the oil-water separation performance of filtration materials. PET/glass fiber composite materials were fabricated via a wet-laid papermaking process, and their separation performance was evaluated. The results show that when the material contains 20% PET fibers with a diameter of 2 μm, the oil–water separation efficiency reaches 90%, with a pressure drop of 3.3 kPa and a downstream median water droplet size(D50) of approximately 5 μm. This study demonstrates the applicability of PET fibers in low-IFT diesel/water separation and provides theoretical support and engineering guidance for the design of high-performance coalescence materials.更多还原