FIELD: process engineering.
SUBSTANCE: invention relates to composites. Proposed prepreg comprises components A, B and C, component A being located at one or both surfaces of the ply containing components B and C. Component A is a nonwoven material including thermoplastic elastomer and/or polyolefin with tan δ equal to 0.06 or larger at 10°C measured at measurement of viscoplasticity and is incompatible with component B being the first composition of epoxy resin and C making a reinforcing fiber. Proposed method of prepreg making comprises impregnation of component C with component B to produce prepreg precursor and bonding component A with prepreg precursor.
EFFECT: high stiffness, strength and damping properties.
22 cl, 15 dwg, 33 tbl, 103 ex
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|---|---|---|---|
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| IMPROVED COMPOSITE MATERIALS | 2009 |
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| PREPREG | 0 |
|
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| COMPOSITION BASED ON EPOXY RESINS AND FILM, PREPREG AND FIBRE-REINFORCED PLASTIC OBTAINED USING SAID COMPOSITION | 2013 |
|
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