에폭시 배합비에 따른 내열성 복합재료 최적조건
Optimum Mixing Ratio of Epoxy for Glass Fiber Reinforced Composites with High Thermal Stability
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초록
2개 이상의 에폭시 기지재의 배합비를 이용하여 최적의 에폭시 복합재료를 제조하였다. 이 실험에서 노볼락계 에폭시 및 아이소시아네이트계 에폭시를 기지재로 사용하였다. 그에 따라 화학적 조성의 변화를 이용하여다양한 실험을 통한 최적의 에폭시 배합비를 유추하였고, 에폭시의 내열성 및 계면을 파악하기 위하여 열중량측정기를 이용하여 유리전이온도의 변화를 파악하였고 정적 접촉각을 측정하였다. 기계적 물성을 파악하기 위하여에폭시 배합비에 따른 유리섬유/에폭시 복합재료의 인장, 압축, 굴곡강도를 상온에서 및 노화시간에 따라 파악하였다. 에폭시와 유리섬유간 계면을 개념도로 나타냈다. 시험 결과 에폭시 배합비에 따른 적외선 피크 및 유리전이온도 변화를 확인하였다. 서로 다른 에폭시의 배합비가 1:1일 때 기계적물성이 상대적으로 좋은 것을 확인하였다.
Abstract
The optimum condition of glass fiber/epoxy composites was investigated according to mixing ratio of twoepoxy matrices. Novolac type epoxy and isocyanate modified epoxy were used as composites matrix. Based onchemical composition of mixing matrix, optimum mixing ratio of epoxy resins was obtained through variousexperiments. In order to investigate thermal stability and interface of epoxy resin, glass transition temperature wasobserved by DSC instrument, and static contact angle was measured by reflecting microscope. Change of IR peak andTg was conformed according to different epoxy mixing ratio. After fabrication of glass fiber/epoxy composites, tensile,compression, and flexural properties were tested by UTM by room and high temperature. The composites exhibitedbest mechanical properties when epoxy mixing ratio was 1:1.
참고문헌 (20)
- 권동준, "Capacitance 측정법을 이용한 나노 SiC 에폭시 복합재료의 내부 강화재 분산 예측방법", Composites Research, 26(6), pp.337~342 (2013), 한국복합재료학회
- Pihtili, H, "An Experimental Investigation of Wear of Glass Fibre–epoxy Resin and Glass Fibre–polyester Resin Composite Materials", European Polymer Journal, 45, pp.149~154 (2009)
- Park, J.-M, "Interfacial and HydrophobicEvaluation of Glass Fiber", CNT?epoxy NanocompositesUsing Electro-micromechanical Technique and WettabilityTest, 2009, pp.40, 1722~1731
- Jeon, K. -W, "A Study on the Evaluationof Tension-Compression Fatigue Characteristics ofGlass Fiber", Epoxy 4-Harness Satin Woven Laminate Compositefor the Railway Bogie Application, 2010, pp.23(5), 22~29
- Sikarwar, R. S, "Influence ofFiber Orientation and Thickness on the Response of Glass", epoxy Composites Subjected to Impact Loading, 2014, pp.60, 627~636
- Hesterberg, T. W, "Product Stewardship and Science: Safe Manufacture andUse of Fiber Glass", Regulatory Toxicology and Pharmacology, 62, pp.257~277 (2012)
- Jiang, Z. -H, "The Structure of Glass: A PhaseEquilibrium Diagram Approach", Progress in Materials Science, 61, pp.144~215 (2014)
- Mirza, F. A, "RecentDevelopments in Natural Fiber Reinforced Composites", Journalof Composite Science and Technology, 22(4), pp.41~49 (2009)
- Carra, G, "Ageing of Pultruded Glass FibreReinforced Polymer Compsites Exposed to Combined EnvironmentalAgents", Composite Structures, 108, pp.1019~1026 (2014)
- Pan, G, "Synthesis,Characterization, and Properties of Novel NovolacEpoxy Resin Containing Naphthalene Moiety", Polymer, 48, pp.3686~3693 (2007)
- Flores, M, "Ytterbium Triflate as a New Catalyst on theCuring of Epoxy?isocyanate Based Thermosets", ThermochimicaActa, 543, pp.188~196 (2012)
- Rahmana, M. M, "Effectof NH2-MWCNTs on Crosslink Density of Epoxy Matrix and ILSSProperties of e-glass", epoxy Composites, 2013, pp.95, 213~221
- Liu, Y.L, "Flame-retardant Epoxy Resins from Novel PhosphoruscontainingNovolac", Polymer, 42, pp.3445~3454 (2001)
- Dong, C, "Flexural and Tensile Strengths ofUnidirectional Hybrid Epoxy Composites Reinforced by S-2Glass and T700S Carbon Fibres", Materials and Design, 54, pp.955~966 (2014)
- Baqar, M, "Poly(benzoxazine-co-urethane)s: A New Concept for Phenolic", urethaneCopolymers via One-pot Method, 2011, pp.52, 307~317
- Fu, Y, "Wetting Characteristics ofEpoxy Resins Modified by Graphitic Nanofibers with DifferentFunctional Groups", Colloids and Surfaces A : Physicochemicaland Engineering Aspects, 369, pp.196~202 (2010)
- Goddard, J. M, "Polymer Surface Modificationfor the Attachment of Bioactive Compounds", Progressin Polymer Science, 32, pp.698~725 (2007)
- 한승욱, "유리섬유직물에 대한 수지의 젖음성 평가", Composites Research, 24(2), pp.30~37 (2011), 한국복합재료학회
- Park, J. -M., "Interfacial Durability and Acoustical Properties ofTransparent Graphene Nanoplatelets", poly (vinylidene fluoride)Composite Actuators, 2013, pp.539, 350~355
- Mansura, A. A. P, "Chemical Functionalization of Ceramic TileSurfaces by Silane Coupling Agents: Polymer Modified MortarAdhesion Mechanism Implications", Materials Research, 11, pp.293~302 (2008)