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The effects of cure temperature on the thermomechanical properties of UV curable coatings
Author(s) -
Overton B. J.,
Taylor C. R.,
Muller A. J.
Publication year - 1989
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.760291704
Subject(s) - materials science , acrylate , prepolymer , polyurethane , composite material , modulus , ultimate tensile strength , coating , young's modulus , dynamic mechanical analysis , polymer , copolymer
A method is presented to study the mechanical behavior of soft, UV curable coating material as a function of temperature of the prepolymer at cure. For such materials, the crosslink density (hence, equilibrium modulus) is found to decrease with increasing cure temperature. The three primary coatings are: a polyurethane acrylate with a nominal equilibrium tensile modulus of 200 psi, a polyurethane acrylate with a nominal equilibrium modulus of 1200 psi, and a non‐urethane acrylate with a nominal equilibrium tensile modulus of 60 psi.