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Mechanical Characteristics of CF Laminated Prepreg with UV-thermal Dual Curable Epoxy Resin

  • Textile Coloration and Finishing
  • Abbr : Text. Color. and Finish.
  • 2017, 29(1), pp.37-44
  • Publisher : The Korean Society Of Dyers And Finishers
  • Research Area : Engineering > Fiber Engineering > Dyeing Engineering
  • Published : March 27, 2017

SIM JEE HYUN 1 김지혜 1 Park Sung Min 2 구광회 3 장기욱 4 BAE, JIN SEOK 5

1다이텍연구원
2다이텍 (DYETEC) 연구원
3(주)소포스
4(주)티비카본
5경북대학교

Accredited

ABSTRACT

An issue of major concern in the utilization of laminated composites based epoxy resin is associated with the occurrence of delaminations or interlaminar cracks, which may be related to manufacturing defects or are induced in service by low-velocity impacts. A strong interfacial filament/brittle epoxy resin bonding can, however, be combined with the high fracture toughness of weak interfacial bonding, when the filaments are arranged to have alternate sections of shear stress. To improve this drawback of the epoxy resin, UV-thermal dual curable resin were developed. This paper presents UV-thermal dual curable resin which were prepared using epoxy acrylate oligomer, photoinitiators, a thermal-curing agent and thermoset epoxy resin. The UV curing behaviors and characteristics of UV-thermal dual curable epoxy resin were investigated using Photo-DSC, DMA and FTIR-ATR spectroscopy. The mechanical properties of UV-thermal dual curable epoxy resin impregnated CF prepreg by UV curable resin content were measured with Tensile, Flextural, ILSS and Sharpy impact test. The obtained results showed that UV curable resin content improves the epoxy toughness.

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