METHOD OF OBTAINING PREPARATION FOR COMPOSITE MATERIALS Russian patent published in 2014 - IPC C08J5/06 C08J5/04 D06M11/00 D06M11/07 

FIELD: chemistry.

SUBSTANCE: invention relates to field of obtaining prepregs for creation of composite materials based on continuous highly strong high modulus polyethylene fibres from ultrahigh molecular polyethylene, which can be used in different fields of technology, for instance in helicopter building, aviation, automobile building and ship building. Method of obtaining prepreg for composite materials includes processing multifilament ultrahigh molecular fibre or based on it fabric with fluorine-helium mixture under pressure 0.01-0.1 MPa, duration of processing is 1-60 min, temperature of processing is 20-40°C, with further impregnation with polymer binding agents based on epoxy resin. Multifilament ultrahigh molecular polyethylene fibre or based on it fabric undergoes degassing under lower pressure before being processed with fluorine-helium mixture.

EFFECT: invention makes it possible to obtain from prepreg high-quality ultralight highly strong high modulus composite materials, exceeding materials from non-processed fibre in specific properties.

2 cl, 5 tbl, 4 dwg