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Prediction and optimization of interlayer-interface resistance for ePTFE laminated PPS composite membrane
  • +4
  • Wentai He,
  • Ze-Xian Low,
  • Shasha Feng,
  • Qun Zhou,
  • zhang feng,
  • Zhaoxiang Zhong,
  • Weihong Xing
Ze-Xian Low
Monash University
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Shasha Feng
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zhang feng
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Zhaoxiang Zhong

Corresponding Author:[email protected]

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Weihong Xing
Nanjing Tech University
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In this work, the interfacial effect on the air resistance of the expanded polytetrafluoroethylene/polyphenylene sulfide (ePTFE/PPS) composite membrane was investigated experimentally and by numerical simulation. PPS fiber melting-caused diffusion, porosity reduction in laminating process, and turbulence effect of sudden changed airflow direction are confirmed to be the primary causes of the additional resistance, which occupy more than 40% of the total resistance. To eliminate the influence of PPS fiber melting-induced pore blocking in laminating process, the model modification parameter c and air permeability effective coefficient (σ) were introduced based on a digital image processing technology. A mathematical model was then established to predict and optimize the composite membrane. The predictions from the theoretical calculation were quantitatively in good agreement with the experimental measurements. It was found that profiled fiber with smaller intersection angle and diameter ratio can effectively decrease ~86% of IIR.