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Effect of CTBN Micro-Rubber Particles on Fatigue Performance of Carbon Reinforced Epoxy Composites

J. S. Tate, Dinesh Kumar Kannabiran Vasudevan, Vasconcellos Murphy Shelby E., Kunal Kumar, Stephan Sprenger

Abstract


In the automobile industry, composite materials are sought after for their lightweight and superior properties, such as high stiffness, specific strength, and chemical resistance. Epoxy resins, brittle in nature, are used as a matrix system in many composite manufacturing industries and are enhanced by reactive liquid rubbers to increase toughness. In this research, carbon reinforced epoxy composites were manufactured with carboxyl-terminated butadiene-acrylonitrile (CTBN) rubber particles using low-cost vacuum assisted resin transfer molding (VARTM). The mechanical characterization was determined through testing under tensile, flexural, and interlaminar shear loadings and compared against a control (0 wt% of rubber particles) composite. Tensile strength slightly increased with the CTBN 10 wt% compared to the control, but all other mechanical properties decreased. Based on the tensile testing results, the CTBN 10 wt% was selected for fatigue studies. Extensive axial tension-tension fatigue testing was performed on the control and CTBN rubber modified composites and used to create an S-N diagram and stiffness degradation model. It was observed that the CTBN 10 wt% modified system showed excellent fatigue life compared to the control composite. Furthermore, the CTBN 10 wt% carbon fiber composites showed significant enhancement compared to the control as seen in the S-N diagram and stiffness degradation curve.


Keywords


Carbon reinforced epoxy composite, carboxyl terminated butadiene acrylonitrile (CTBN), tension-tension fatigue tests, vacuum assisted resin transfer molding (VARTM)

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References


Makkar U, Rana M. Singh A. Analysis of Fatigue Behavior of Glass/carbon Fiber Epoxy Composite. Int J Res Eng Technol. 2015; 4: 211-216p.

Murra G. Structural Composites in Cars: Charting their manufacturing processes and evolution, in both racing and road cars, www.roadandtrack.com/car-culture/a16929/structural-composites-in-cars (2011, accessed 11 April 2017).

Degrieck J, Paepegem W. Fatigue damage modeling of fibre-reinforced composite materials: Review. Appl Mech Rev. 2001; 54: 279p.

Sprenger S. Improving mechanical properties of fiber-reinforced composites based on epoxy resin containing industrial surface-modified silica nanoparticles. J Compos Mater. 2013; 49: 53-63p.

Pascault J, Williams RJ. General Concepts about Epoxy Polymers. In: Pascault J and Williams RJ (eds) Epoxy Polymers, New Materials and Innovations. 1st ed. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2010, pp. 1-12.

Salazar A, Prolongo S, Rodríguez J. The effect of hygrothermal conditions on the fracture toughness of epoxy/poly(styrene-co-allylalcohol) blends. Mater Lett. 2010; 64: 167-169p.

Kunz-Douglass S, Beaumont P, Ashby M. A model for the toughness of epoxy-rubber particulate composites. J Mater Sci. 1980; 15: 1109-1123p.

Johnsen B, Kinloch AJ, Mohammed, et al. Toughening mechanisms of nanoparticle-modified epoxy polymers. Polym J. 2007; 48: 530-541p.

Saleh B, Ishak M, Hashim A, et al. Compatibility, Mechanical, Thermal and Morphological Properties of Epoxy Resin Modified with Carbonyl-Terminated Butadiene Acrylonitrile Copolymer Liquid Rubber. J Phys Sci. 2009; 20: 1-12p.

Pearson RA, Yee A. Toughening mechanisms in thermoplastic-modified epoxies: 1. Modification using poly(phenylene oxide). Polym J. 1993; 34: 3658-3670p.

Kinloch AJ, Shaw S, Tod D, et al. Deformation and fracture behaviour of a rubber-toughened epoxy: 1. Microstructure and fracture studies. Polym J. 1983; 24: 1341-1354p.

Balakrishnan S, Start P, Raghavan D, et al. The influence of clay and elastomer concentration on the morphology and fracture energy of preformed acrylic rubber dispersed clay filled epoxy nanocomposites. Polym J. 2005; 46: 11255-11262p.

Huang Y, Kinloch AJ. Modelling of the toughening mechanisms in rubber-modified epoxy polymers. J Mater Sci. 1992; 27: 2753-2762p.

Williams JG. Particle toughening of polymers by plastic void growth. Compos Sci Technol. 2010; 70: 885-591p.

Sprenger S, Kothmann MH, Altstaedt V. Carbon fiber-reinforced composites using an epoxy resin matrix modified with reactive liquid rubber and silica nanoparticles. Compos Sci Technol. 2014; 105: 86-95p.

Sprenger S, Kothmann MH, Altstaedt V. Carbon fiber-reinforced composites using an epoxy resin matrix modified with reactive liquid rubber and silica nanoparticles. Compos Sci Technol. 2014; 105: 86-95p.

Kunz-Douglass S, Beaumont PW, Ashby MF. A model for the toughness of epoxy-rubber particulate composites. J Mater Sci. 1980; 15: 1109-1123p.

Manjunatha C, Taylor A, Kinloch AJ, et al. The Tensile Fatigue Behavior of a GFRP Composite with Rubber Particle Modified Epoxy Matrix. J Reinf Plast Compos. 2009; 29: 2170-2183p.

Zhang J, Deng S, Ye L, et al. Interlaminar fracture toughness and fatigue delamination growth of CF/EP composites with matrices modified by nanosilica and CTBN rubber. In: Proceedings of the 13th International Conference on Fracture, Beijing, China, 16-21 June 2013. pp. 1-7.

Takemura K, Fujii T. Improvement in Static, Impact and Fatigue Properties of CFRP due to CNBR Modification of Epoxy Matrix. JSME International Journal Series A. 2000; 43 (2), 186-195p.

Fibre Glast Developments Corporation. Product Data Sheet, 3K, Plain Weave Carbon Fiber, 2010.

Hexion Inc. Technical Data Sheet, EPON™ Resin 828, 2015.

Hexion Inc. Technical Data Sheet, EPIKURE™ Curing Agent 3300, 2007.

Hexion Inc. Technical Data Sheet, EPIKURE™ Curing Agent 3230, 2007.

Air Products and Chemicals Inc. Technical Data Sheet, ANCAMINE® 2904 Curing Agent, 2014.

Air Products and Chemicals Inc. Technical Data Sheet, ANCAMINE® 2678 Curing Agent, 2014.

Evonik Industry. Technical Data Sheet, Albipox 1000, 2008.

Kumar D. Mechanical and Fatigue Characterization of Carbon Fiber Reinforced Composite Containing Rubber Microparticles and Silica Nano-Particles. Master’s Thesis, Texas State University, USA, 2016.

ASTM D638: 2003. Standard Test Method for Tensile Properties of Plastics.

ASTM D790: 2010. Standard Test Methods for Flexural Properties of Unreinforced and Reinforced Plastics and Electrical Insulating Materials.

ASTM D3039/D3039M: 2013. Standard Test Method for Tensile Properties of Polymer Matrix Composite Materials.

ASTM D790: 2010. Standard Test Methods for Flexural Properties of Unreinforced and Reinforced Plastics and Electrical Insulating Materials.

ASTM D2344/D2344M: 2013. Standard Test Method for Short-Beam Strength of Polymer Matrix Composite Materials and Their Laminates.

ASTM D3479: 1996. Standard Test Method for Tension-Tension Fatigue of Polymer Matrix Composite Materials.

Vijaya, PP, Pionteck J, Huczko A, et al. Liquid rubber and silicon carbide nanofiber modified epoxy nanocomposites: Volume shrinkage, cure kinetics and properties. Compos Sci Technol. 2014; 102: 65-73p.

Tate JS, Kelkar AD. Stiffness degradation model for biaxial braided composites under fatigue loading. Composites Part B. 2008; 39: 548-555p.

Ratna D, Simon G. Mechanical characterization and morphology of carboxyl randomized poly(2-ethyl hexyl acrylate) liquid rubber toughened epoxy resins. Polym J. 2001; 42: 7739-7747p.

Saleh B, Ishak M, Hashim A, et al. Compatibility, Mechanical, Thermal and Morphological Properties of Epoxy Resin Modified with Carbonyl-Terminated Butadiene Acrylonitrile Copolymer Liquid Rubber. J Phys Sci. 2009; 20: 1-12p.

Higashino M, Takemura K, Fujii TJ. Strength and damage accumulation of carbon fabric composites with a cross-linked NBR modified epoxy under static and cyclic loadings. Compos Struct. 1995; 32: 357-366p.

Kim J, Baillie C, Poh J, Mai Y. Fracture toughness of CFRP with modified epoxy resin matrices. Composites Science and Technology. 1992; 43(3), 283-297p.

Nakao K, Yamashita Y. Effect of Modification of Epoxy Matrix with Liquid Nitrile Rubber on Bond Strength between Carbon Fiber and Epoxy Matrix in Composites. In Third Japan U.S. Conference on Composite Materials. Tokyo. 1992. pp. 743-750.

Higashino M, Takemura K, Fujii TJ. Strength and damage accumulation of carbon fabric composites with a cross-linked NBR modified epoxy under static and cyclic loadings. Compos Struct. 1995; 32: 357-366p.


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