Composite carbon fiber containing epoxy

Low, B.Y., Gardener, S.D., Pittman, C.U. and Hackett, R.M. (1995b). A micromechanical characterization of residual thermal stresses in carbon fiber/epoxy composites containing a non-uniform interphase region. Composites Eng. 5, 375-396. 

Fig. 8.6. Mode I potential energy release rate, GJ, plotted as a function of crack extension, Aa, for carbon fiber composites containing different matrices E (pure epoxy) ER (rubber-modified epoxy) ERF (short fiber-modified epoxy) ERP (rubber-and particle-modified epoxy). After Kim et al. (1992).

I ig. X.ll. Residual stillness a.s a funetion crack length as measured from double cantilever beam specimens after impact damage carbon fiber composites containing (O) unmodified epoxy ( ) rubber-... 

As in the cyanate/epoxide compositions, polysulfone is used as an additive in cyanate/epoxide/maleimide systems. As an example, a composition for carbon-fiber composites should be mentioned. It contains BPA/DC-BMI prepolymer, epoxide resin and polyethersulfone [111-113] Zn acetate and dicumyl peroxide are added. Polyethersulfone powder was added to the three-component system with 4,4 -diamino-diphenylmethane-based tetraepoxide as one of the epoxy resins used [114]. 

Figure 5.25 shows that the glass transition of composites containing carbon fibers may be affected by water uptake. The glass transition of carbon fiber/PEEK composite remains the same under diy and wet conditions. But carbon fiber/epoxy composites may experience a decrease in Tg as high as 77°C depending on the properties of the matrix resin." "... 

Another commonly used surface modification method of the reinforcing fibers consists in the treatment with aminoalkylsilanes, for example y-aminopropyltriethoxysilane. Glass fibers, which have been sized in this manner, are incorporated in numerous PPE-containing compositions. In addition, it is always necessary to modify the composition of the thermoplastic matrix to bond the fibers to the matrix. In addition to glass fibers, carbon fibers, e.g., epoxy resin-sized carbon fibers have been used for reinforcement. ... 

M. Paligova, J. Vilcakova, P. Sdha, V. Kfesdlek, J. Stejskal, O. Quadrat, Electromagnetic Shielding of Epoxy Resin Composites Containing Carbon Fibers Coated with Polyaniline Base. Phys Stat Mech Its Appl 2004, 335, 421-429. 

Nevertheless, some authors have provided some evidence of a flame inhibition effect of phosphorus. Schartel et al. have measured the EHC of epo y resins in a PCFC i.e. corresponding to complete combustion) and in a cone calorimeter. Epojy resins containing DOPO covalently linked to the network have been studied. All thermosets exhibited the same EHC in a PCFC (approximately 24 kJ g ), but in cone calorimeter tests the composites prepared from the phosphorus-containing resins (with 60 vol% of carbon fibers) exhibited a significantly lower EHC than the composite prepared from the phosphorus-free epoxy resin. In this study, a clear flame inhibition effect was evidenced. 

Figure 9.9 Dependence of iLSS of epoxy resin composites containing 60% % fibers on piasma poiymer deposition time. Source Reprinted with permission from Weisweiier W, Schiitter K, Surface modification of carbon fibres by piasma poiymerization, Figueiredo JL, Bernardo CA, Baker RTK, Huttinger KJ eds., Carbon Fibers Filaments and Composites, Kiuwer Academic, Dordrecht,...

Plastics, either thermosetting or thermoplastic - most commonly epoxies or high-performance resins - that contain carbon or graphite fibers. Chung DD (1994) Carbon fiber compositers. Elsevier Science and Technology Books, New York. 

Zhang G, Karger-Kocsis J and Zou J (2010) Synergistic effect of carbon nanofibers and short carbon fibers on the mechanical and fracture properties of epoxy resin, Carbon 48 4289-4300. Varela-Rizo H, Weisenberger M, Bortz D R and Martin-Gullon I (2010) Fracture toughness and creep performance of PMMA composites containing micro- and nanosized carbon filaments. Compos Sci Technol 70 1189-1195. 

Electrical resistance measurements have been reported for polyaniline-cerium oxide composites [29], polyester fibers [30], and carbon-containing epoxy composites [31], whereas electrical positivity measurements have been reported for hydroelectron... 

Electrical properties have been reported on numerous carbon fiber-reinforced polymers, including carbon nanoflber-modified thermotropic liquid crystalline polymers [53], low-density polyethylene [54], ethylene vinyl acetate [55], wire coating varnishes [56], polydimethyl siloxane polypyrrole composites [50], polyacrylonitrile [59], polycarbonate [58], polyacrylonitrile-polycarbonate composites [58], modified chrome polymers [59], lithium trifluoromethane sulfonamide-doped polystyrene-block copolymer [60], boron-containing polyvinyl alcohols [71], lanthanum tetrafluoride complexed ethylene oxide [151, 72, 73], polycarbonate-acrylonitrile diene [44], polyethylene deoxythiophe-nel, blends of polystyrene sulfonate, polyvinyl chloride and polyethylene oxide [43], poly-pyrrole [61], polypyrrole-polypropylene-montmorillonite composites [62], polydimethyl siloxane-polypyrrole composites [63], polyaniline [46], epoxy resin-polyaniline dodecyl benzene sulfonic acid blends [64], and polyaniline-polyamide 6 composites [49]. 

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