Język Polski
English
Published
: 2022-09-19
FT-IR ATR spectra and nanohardness measurements as used to follow the progress in photocuring of polyester resins
Abstract
Photocuring of a polyester resin layer 1.0-3.5 |am thick was followed in terms of FT-IR ATR spectroscopy and nanoindentation measurements. The hardness of the coating was reaffirmed to be related to exposure time (Fig. 3). FT-IR spectra showed the photocuring of the resin to follow the mechanism involving copolymerization of an oligoester with styrene (Fig. 4). FT-IR data were found to be well correlated (R2 > 0.95) with nanoindentation data (Fig. 5). The curing degree disclosed a surface gradient (Fig. 3a), impossible to detect by conventional hardness measurements. This gradient continued to be maintained in the course of the curing reaction, a fact of possible consequence for polymer coating durability. By being focused on surface layer features, the nanoindentation technique provides valuable data that so far were underestimated by polymer technology.
Details
Statistics
Authors
Zasady cytowania
Bieliński, D., Głąb, P., & Ślusarski, L. (2022). FT-IR ATR spectra and nanohardness measurements as used to follow the progress in photocuring of polyester resins. Polimery, 46(7-8), 494–500. Retrieved from https://polimery.ichp.vot.pl/index.php/p/article/view/2099
