FIELD: chemistry.
SUBSTANCE: invention relates to production of polyimides and specifically to production of polyimide binder for reinforced plastic. The polyimide binder is a product of reacting a dianhydride of benzophenon-3,3'-4,4'-tetracarboxylic acid and m-phenylenediamine and a modifying additive - polydimethyl(γ-aminopropylethoxy)phenylsilazane. The polyimide binder additionally contains γ-aminopropyltriethoxysilane in amount of 2-5 wt %. The invention also relates to producing prepregs, which are a polyimide binder in accordance with the invention and fibre material.
EFFECT: polyimide binder enables to increase heat resistance and moisture resistance of reinforced plastic and articles made from reinforced plastic.
4 cl, 4 ex, 3 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| POLYIMIDE BINDER FOR HEAT-RESISTANT COMPOSITE MATERIALS | 2016 |
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| PROCESS FOR PREPARING ANTIFRICTION POLYIMIDE MATERIAL | 1993 |
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| METHOD OF PRODUCING POLYIMIDE COMPOSITE FIBRE BASED ON CARBON REINFORCED BY NANOSTRUCTURED SILICON CARBIDE | 2016 |
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RU2620122C2 |
