Anyone has experiences with the mechanical properties with porous materials, for example, polymer aerogels, having large standard deviation?

How the parameters (such as Mw, Chemical bonds, polymer bland and so on) affect the mechanic property of polymer (such as storage, loss modulus) ?

Anyone can recommend any books on such topics? Thanks in advance.

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Modeling viscosity using model of Chung?

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How can I verify my centrifugal fan design for electric motor cooling?

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Amorphous silica XRD peak at around 10 degree?

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Can anyone please suggest where I can find a reference for ReaxFF parameters for PTFE(Teflon) suitable for use in LAMMPS?

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Petr Lepcio

Hi, that probably means that your processing method yields an inconsistent structure of the testing specimens. Try to use larger testing specimens to average out the structural effect a bit.

Mohammad Razmara

Hi Ying, as accurately noted by Petr, it is crucial that you carefully control the processing parameters when fabricating your samples to attain the desired outcomes. I strongly recommend "ensuring that all components are thoroughly mixed (e.g. Ultrasonic Agitation) to create homogenous samples, preventing any uneven mechanical properties in the final aerogel polymer". Additionally, it is imperative to produce multiple samples under identical conditions in each treatment to decrease any inconsistencies and variations in your results.