11. Solution to Chemistry Problem

11. Solution to Chemistry Problem

2.17. Calculate the contact angle of wetting of the surface of a solid by a liquid, the values ​​of surface tension of which and their dispersion components are given in Table 2.8
Solid substance – Polypropylene
бс mJ/m2 37.0
бсd mJ/m2 26.0
Liquid substance (options 3 and 10)
Option 1
water
б mJ/m2 72.75
бd mJ/m2 22.1
Option 8
Triethylene glycol
б mJ/m2 45.9
бd mJ/m2 28.0

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