The present investigation took this change into account when calculating the dispersion and polar components of the surface free energy from water and methylene iodide contact angles.
3] treatment on three polymer surfaces--PMMA, polycarbonate, and poly(tetrafluo-roethylene) (PTFE)--by measuring contact angles of water and methylene iodide as a function of irradiation time.
A microsyringe was used to place either a water dro or a methylene iodide drop on the polymer surface with sufficient volume to provide a base of more than 0.
The two liquids selected were water and methylene iodide (C[H.
3 and Table 1 were measured using methylene iodide.
Contact Angles of Water and Methylene Iodide on Lexan Polycarbonate as a Function of UV Irradiation Time.