Effect of UV radiation on some semi-interpenetrating polymer networks based on polyurethane and epoxy resin

The results demonstrated that polyurethane-epoxy resin semi-interpenetrating polymer structures showed a higher photo-stability than the polyurethane sample

Dan Rosu; Liliana Rosu; Fanica Mustata; Cristian-Dragos Varganici

2012

Scholarcy highlights

  • The modifications of properties of some semi-interpenetrating polymer networks based on aromatic polyurethane and a crosslinked epoxy resin, during UV irradiation with a mercury lamp, were investigated
  • Variation of some properties, such as colour, gloss, contact angle, mass variations and water retention were monitored according to the irradiation time
  • Photochemical reactions that occurred during irradiation were monitored by FT-IR
  • The results demonstrated that polyurethane-epoxy resin semi-interpenetrating polymer structures showed a higher photo-stability than the polyurethane sample

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