EFFECTS OF REACTIVE DILUENTS ON MECHANICAL AND PHYSICAL-PROPERTIES OF A UV CURABLE ACRYLATED URETHANE PREPOLYMER

YILDIZ E., GUCLU H., YILDIRIM H., KUYULU A., GUNGOR A.

ANGEWANDTE MAKROMOLEKULARE CHEMIE, vol.230, pp.105-115, 1995 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 230
  • Publication Date: 1995
  • Doi Number: 10.1002/apmc.1995.052300107
  • Journal Name: ANGEWANDTE MAKROMOLEKULARE CHEMIE
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.105-115
  • Yıldız Technical University Affiliated: No

Abstract

In this study, the dependence of the mechanical properties of a UV curable acrylated urethane on reactive diluent types and their amounts was investigated. The acrylated urethane prepolymer was synthesized from isophorone diisocyanate (IPDI), an aliphatic diisocyanate, and polypropylene glycol monomethacrylate (PPGMMA) by stepwise addition reaction. UV sensitive mixtures containing N-vinylpyrrolidinone (NVP), thiodiethylene glycol diacrylate (TDGDA) and isobornyl acrylate (IBoA) as reactive diluents were irradiated by UV light. An increase in reactive diluent content, either TDGDA or IBoA, caused an increase in tensile strength and a decrease in elongation values. In contrast, above a certain concentration a decrease in tensile strength was observed when NVP was used as reactive diluent.