FIELD: chemistry.
SUBSTANCE: invention relates to pre-impregnated composite material (prepreg), method of its production, composite part or structure, as well as to method of its production. Pre-impregnated composite material contains A) reinforcing fibres and B) uncured matrix resin. Matrix resin contains (a) a resin component containing at least one epoxy resin, (b) a thermoplastic particle component, (c) a thermoplastic impact-enhancing component containing polyether sulphone, (d) a curing agent. Component of thermoplastic particles consists of a mixture of a first group of polyamide particles which do not contain a cross-linked polyamide, and a second group of polyamide particles which contain a cross-linked polyamide. Prepreg can be cured/moulded to form composite parts.
EFFECT: invention enables to obtain materials having high levels of compression strength in dry conditions at room temperature and which retain their compression strength under hot and humid conditions.
18 cl, 3 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| COMPOSITE MATERIAL WITH POLYAMIDE PARTICLES | 2013 |
|
RU2625241C2 |
| SOLVENT-RESISTANT EPOXY RESIN WITH TOUGHNESS INCREASED BY MEANS OF THERMOPLASTS | 2011 |
|
RU2575127C2 |
| COMPOSITE MATERIALS FROM THERMO-REACTIVE RESIN CONTAINING INTER-LAYER PARTICLES INCREASING STRENGTH | 2013 |
|
RU2641004C2 |
| COMPOSITE FOR STRUCTURAL APPLICATIONS | 2011 |
|
RU2567625C2 |
| IMPROVING SOLVENT RESISTANCE OF EPOXY RESINS HARDENED WITH POLYETHERSULPHONE | 2011 |
|
RU2581873C2 |
| COMPOSITE MATERIAL AND RESIN COMPOSITION CONTAINING METASTABLE PARTICLES | 2016 |
|
RU2725922C2 |
| HYBRID VEIL AS AN INTERMEDIATE LAYER IN COMPOSITE MATERIALS | 2016 |
|
RU2713325C2 |
| COMPOSITE MATERIALS WITH ELECTRICALLY CONDUCTIVE AND DELAMINATION RESISTANCE PROPERTIES | 2014 |
|
RU2678043C1 |
| IMPROVEMENT OF COMPOSITE MATERIALS | 2013 |
|
RU2632454C2 |
| PREPREG, COMPOSITE REINFORCED WITH FIBERS AND METHOD OF PREPREG MAKING | 2011 |
|
RU2509651C1 |
