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Formulation, curing, morphology and impact behaviour of epoxy matrices modified with saturated rubbers

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Abstract

New formulations of rubber toughening agents for difunctional and tetrafunctional commercial epoxies are attempted, on the basis of their increased thermal stability compared with classical unsaturated elastomers. Quite satisfactory results are obtained where a block copolymer of polydimethylsiloxane and polyoxyethylene elastomer or a functionalized poly (1 -butene) in difunctional epoxy are used. On the other hand, poor results are obtained when the same elastomers are employed in tetrafunctional epoxies. A tentative explanation is given on the basis of the different networks obtained in the two matrix systems.

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Authors and Affiliations

  1. Istituto di Ricerche su Tecnologia dei Polimeri e Reologia del CNR, Via Toiano, 6 Arco Felice, Napoli, Italy

    N. Lanzetta, P. Laurienzo, M Malinconico, E. Martuscelli, G. Ragosta & M. G. Volpe

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  1. N. Lanzetta
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  2. P. Laurienzo
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  3. M Malinconico
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  4. E. Martuscelli
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  5. G. Ragosta
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  6. M. G. Volpe
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Lanzetta, N., Laurienzo, P., Malinconico, M. et al. Formulation, curing, morphology and impact behaviour of epoxy matrices modified with saturated rubbers. J Mater Sci 27, 786–792 (1992). https://doi.org/10.1007/BF02403897

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  • DOI: https://doi.org/10.1007/BF02403897

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