Study on UV-crosslinking process of Diane-Epoxy resin/poly (tetrahydrofurane) divinyl ether system

  • Đào Phi Hùng
  • Nguyễn Anh Hiệp
  • Mạc Văn Phúc

Abstract

The effect of diane-epoxy resm (DE) and poly(tettahydrofurane) divinyl ether (DVE) content on photocrosslinking reaction of DE/DVE system with triarylsulfonium salt (TAS) as photo-initiator were investigated by IR spectra, change of relative hardness and gel fraction. The results showed that increasmg DVE content improved some of physico-mechanical properties of photocrosslinked coatings although relative hardness and speed of photocrosslinking reaction reduced. The changes of fimctional groups (IR spectra), relative hardness and gel fraction as well as the physico-mechanical properties of uv-cured coatings based on DE/DVE/TAS system illustrated that suitable mass ratio of constituents was 80/20/5. The UV-cured coating based on the system DE/DVE/TAS = 80/20/5 crosslinked completely after 3.6 seconds UV-exposure and having good physico-mechanical properties: impact resistance reached 180 kg.cm; the flexibility obtained Iram; the adhesion and relative hardness were point 1 and 0.7, respectively.

điểm /   đánh giá
Published
2017-10-12
Section
Articles