Journal
COMPOSITES PART B-ENGINEERING
Volume 79, Issue -, Pages 132-137Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesb.2015.04.032
Keywords
Glass fiber; Interface/interphase; Micro-mechanics; Mechanical testing
Funding
- Korea Association of Industry, Academy and Research Institute [C0097101]
- Korea Evaluation Institute of Industrial Technology (KEIT) [C0097101] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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The optimum condition of glass fiber/epoxy composites was investigated according to mixing ratio of two epoxy matrices. Novolac type epoxy and isocyanate modified epoxy were used as composites matrix. Based on chemical composition of mixing matrix, optimum mixing ratio of epoxy resins was obtained through FT-IR instrument. In order to investigate thermal stability and interface of epoxy resin, glass transition temperature was observed by DSC instrument, and static contact angle was measured by reflecting microscope. Change of IR peak and T-g was conformed according to different epoxy mixing ratios. After fabrication of glass fiber/epoxy composites, tensile, compression, and flexural properties were tested by UTM by room and high temperature. The composites exhibited best mechanical properties when epoxy mixing ratio was 1:1. (C) 2015 Elsevier Ltd. All rights reserved.
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