Toughening and reinforcing epoxy resins composite material and preparation method thereof

The invention relates to a toughening reinforcing epoxy resin composite material and a preparation method thereof; the composite material comprises epoxy resin, hyperbranched polyamide esters, a methyl tetrahydrophthalic anhydride curing agent, and an imidazole accelerator, wherein, the parts by wei...

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Bibliographische Detailangaben
Hauptverfasser: HU HUIHUI, YAN BO, CHEN YANMO, ZHANG YU, ZHANG WEI, LIU SHUIPING
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:The invention relates to a toughening reinforcing epoxy resin composite material and a preparation method thereof; the composite material comprises epoxy resin, hyperbranched polyamide esters, a methyl tetrahydrophthalic anhydride curing agent, and an imidazole accelerator, wherein, the parts by weight of the hyperbranched polyamide esters are 3 to 15 percent of the parts by weight of the epoxy resin; the preparation comprises: the epoxy resin and the hyperbranched polyamide esters are stirred evenly and latter added with the curing agent and the accelerator at the mixing temperature of 80 DEG C, and then put into an oven for being warmed and cured by program after being stirred evenly. The composite material overcomes the shortage that pure epoxy resin is breakable, improves the impact property of the epoxy resin when not reducing the tensile and bending properties, and can improve the toughness and strength of the epoxy resin better.