V.35,no.4,Dec 2023 https://doi.org/10.5764/TCF. Journal Textile Coloration and Finishing Year / Vol., Issue, Month 2017 / V.29,no.1,Mar Title Mechanical Characteristics of CF Laminated Prepreg with UV-thermal Dual Curable Epoxy Resin Authors Ji-hyun Sim*, Ji-hye Kim, Sung-min Park, Kwang-hoe Koo1, Key-wook Jang2 and Jin-seok Bae3 Institution/Affiliations DYETEC, 1Sofos, 2TB Carbon, 3Kyungpook National University Pages/Total page pp.37 ~ 44 / 8 Language Korean Abstract 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. Keywords Keywords UV-thermal dual, toughening, semi-interpenetrating network, prepreg, epoxy acrylate Download   Reference http://www.koreascience.or.kr/article/ArticleFullRecord.jsp?cn=OSGGBT_2017_v29n1_37&ordernum=