Thermoplastic toughened epoxy resins are widely used as matrices in modern prepreg systems.Different curing conditions play a great role in affecting the cure kinetics and phase behaviour of thermoplastic modified epoxies which further result in different mechanical properties of polymer matrix composites.Since the morphology of the cured thermoplastic/epoxy blends is directly related to the mechanical properties,it is essential to control processing conditions for obtaining desirable morphology.A polyethersulphone (PES) modified multifunctional epoxies,triglycidylaminophenol (TGAP) and tetraglycidyldiaminodiphenylmethane (TGDDM),was used for investigation.The cure kinetics and cured morphology of polymer blends heated at different heating rates and cured at different temperature were studied.It is shown that higher cure temperature and higher heating rate display similar effects in the epoxy conversion and the domain size of phase separated structure.
参考文献
| [1] | Williams R J J;B A Rozenberg;J P Pascault.Reaction-induced Phase Separation in Modified Thermosetting Polymers[A].,1997:96-156. |
| [2] | Kim BS.;Inoue T.;Chiba T. .MORPHOLOGY DEVELOPMENT VIA REACTION-INDUCED PHASE SEPARATION IN EPOXY POLY(ETHER SULFONE) BLENDS - MORPHOLOGY CONTROL USING POLY(ETHER SULFONE) WITH FUNCTIONAL END-GROUPS[J].Polymer: The International Journal for the Science and Technology of Polymers,1995(1):43-47. |
| [3] | Stenzenberger H D .Recent developments of thermosetting polymers for advanced composites[J].Computers & Structures,1993,24:219-231. |
| [4] | Zhang J;B L Fox.Manufacturing process effects on the mode I interlaminar fracture toughness and nanocreep properties of CFRP[A].Paris,France,2005 |
| [5] | Zhang J;Fox BL .Characterization and analysis of delamination fracture and nanocreep properties in carbon epoxy composites manufactured by different processes[J].Journal of Composite Materials,2006(14):1287-1299. |
| [6] | Kim J.;Moon TJ.;Howell JR. .Cure kinetic model, heat of reaction, and glass transition temperature of AS4/3501-6 graphite-epoxy prepregs[J].Journal of Composite Materials,2002(21):2479-2498. |
| [7] | Guo QP;Habrard A;Park Y;Halley PJ;Simon GP .Phase separation, porous structure, and cure kinetics in aliphatic epoxy resin containing hyperbranched polyester[J].Journal of Polymer Science, Part B. Polymer Physics,2006(6):889-899. |
| [8] | Lowe A. .MATRIX-DOMINATED TENSILE BEHAVIOUR OF UNIDIRECTIONAL T300/914 AND STRUCTURAL MODELLING OF THE MATERIAL[J].Journal of Materials Science,1996(4):983-993. |
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