Abstract
The influence of several additives (liquid reactive rubbers or core-shell particles-CSR) is studied on thermal and mechanical properties of an epoxy network based on diglycidyl ether of bisphenol-A (DGEBA) and dicy (DDA). Using high speed stirring, without any solvent, a good dispersion of the CSR is achieved. It is shown that the glass transition temperature (Tg)of the networks decreases when liquid rubbers are added but remains constant with the addition of CSR.
It is demonstrated that every kind of particles favors the shear yielding of the networks, and well fit a modified Von Mises criterion.
The fracture energies increase with the addition of rubbers, especially for the rubber with the higher acrylonitrile content. The same toughening effect is obtained with CSR if compared to the lower acrylonitrile content of liquid reactive rubbers but without any decrease in Tg of the epoxy network.
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References
Sultan JN, McGarry FJ, (1973) Polym Eng Sci. 13:19
Bascom W, Ting R, Moulton RJ, Riew CK and Siebert AR (1981) J Mater Sci. 165:2657
Verchère D, Pascault JP, Sautereau H, Moschiar SM, Riccardi CC and Williams RJJ (1991) J Appl Polym Sci. 42:701
Williams RJJ, Borrajo J, Abbado HE and Rojas AJ (1984) in «Rubber Modified Thermoset Resins», ACS Washington DC (Adv Chem Ser, No208) CK Riew and JK Gillham Eds 195
Maazouz A, Sautereau H and Gérard JF (1992) Polym Networks & Blends 2(2):65
Chen D, Pascault JP and Sautereau H (1993) Polym Intern. 32:369
Pottick LA (1989) 34th International SAMPE Symposium Reprint, May 8–11
Levita G, Marchetti A. and Lazzeri A (1991) Makromol Chem Makromol Symp 41:179
Sue HJ (1992) J Mater Sci. 27:3098
Sue HJ, Garcia-Martin EI, Pickelman DM and Yang PC in «Rubber-Toughened Plastics» (1993) Adv. Chem. Ser., no233, C.K. Riew and J.K. Gillham Eds., ACS, Washington DC, 259
Qian JY, Dianonie VL, Pearson R and ElAsser MS, (1993) Internal Report
Amdouni N, Sautereur H, Gérard JF and Pascault JP (1990) Polymer 31:1245
Fox TG, (1956) Bull.Amer. Phys. Soc. 1:123
Sternstein SS and Ongchin L (1969) Polym Preprints 10(2):117
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Maazouz, A., Sautereau, H. & Gérard, J.F. Toughening of epoxy networks using pre-formed core-shell particles or reactive rubbers. Polymer Bulletin 33, 67–74 (1994). https://doi.org/10.1007/BF00313475
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DOI: https://doi.org/10.1007/BF00313475