FIELD: chemistry.
SUBSTANCE: invention relates to preparation of epoxy binder for heat-resistant polymer composite materials based on fibrous filler, which can be used in aviation, machine-, auto- and shipbuilding industries. Epoxy binder contains, wt%: polyfunctional epoxy resin 38.0-55.0, latent curing agent 1.0-4.0, hardener 4.4'-diaminodiphenylsulphone 18.5-27.8, epoxy diane resin or mixture of resins 21.0-40.0. Binder may additionally contain inorganic filler in amount of 0.5-5.0%. Disclosed is a prepreg containing said epoxy binder, fibrous filler with following ratio, wt%: epoxy binder 30.0-50.0, fibrous filler 50.0-70.0. Article is obtained by moulding prepreg.
EFFECT: technical result is production of heat resistant articles from polymer composite materials with operating temperature up to 180 °C and improved mechanical properties.
8 cl, 4 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| EPOXY BINDER, PREPREG BASED THEREON AND ARTICLE MADE THEREFROM | 2015 |
|
RU2601486C1 |
| EPOXY BINDER, PREPREG BASED THEREON AND ARTICLE MADE THEREFROM | 2015 |
|
RU2587178C1 |
| EPOXY BINDER, PREPREG BASED THEREON AND ARTICLE MADE THEREFROM | 2017 |
|
RU2655805C1 |
| HOT MELT EPOXY BINDER WITH INCREASED MOISTURE RESISTANCE | 2022 |
|
RU2798828C1 |
| HOT MELT EPOXY BINDER, SEMIPREG BASED ON IT AND A PRODUCT MADE FROM IT | 2022 |
|
RU2803987C1 |
| EPOXY BINDER, PREPREG BASED ON IT, AND PRODUCT MADE OF IT | 2021 |
|
RU2777895C2 |
| EPOXY BINDER, PREPREG BASED ON IT AND PRODUCTS MADE FROM IT | 2023 |
|
RU2809529C1 |
| EPOXY BINDER, PRE-PREG BASED THEREON, AND PRODUCT MADE THEREFROM | 2021 |
|
RU2773075C1 |
| EPOXY BINDER, PREPREG AND PRODUCT MADE OF THEM | 2022 |
|
RU2797591C1 |
| EPOXIDE ADHESIVE BINDER, FILM ADHESIVE AND ADHESIVE PREPREG ON ITS BASIS | 2018 |
|
RU2686919C1 |
