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Polyester_2

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https://molview.org/?cid=22571199

Structure (crystalline vs amorphous)

pi-stacking

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Properties

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Polyester fiber properties

-Strong, wrinkle, tear resistant (high durability)

-Water resistant

-Weak at high temp. (decomposed by water at high temp.)

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For low crystallinity

undercooling

PET+PTT/PBT

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5

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Wicking property

Fiber direction

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Γ=72.7mN/m, contact angle between water and polyester is 72.5 degree (cos72.5=0.3), g=9.8m/s^2, density of water is 1g/ml,

  1. Please calculate h(height by capillary effect) for two cases below.
  2. If the material is cellulose (contact angle is 10 degree, cos10=0.98), then how about h for two cases below?

R=10um

R=15um

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