FIELD: chemistry.
SUBSTANCE: invention relates to production of binder for polymer composite materials, used to make structures based on carbon fibre filler with operating temperature of 200-400°C, and can be used in aircraft, aerospace, motor car and ship-building and other industries. The polymer binder for composite materials consists of, pts.wt: tetranitrile of aromatic tetracarboxylic acid 100, polyester imide thermoplastic 2-10, amine curing agent 2-6. Also disclosed is a prepreg containing the disclosed polymer binder and fibre filler, with the following ratio of components, wt %: polymer binder 30.0-40.0, fibre filler 60.0-70.0. The fibre filler used is glass fibre or carbon fibre filler.
EFFECT: making high-strength articles at high temperature.
3 cl, 3 tbl
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