| 摘要 |
FIELD: chemistry.SUBSTANCE: invention relates to the field of creating epoxy binding agents for polymer composite materials (PCM) for construction purposes on the basis of carbon filling agents, which can be used in aviation, aerospace industry, radioelectronics and other fields of technology. An epoxy binding agent includes, wt %: an epoxy resin with three and more functional groups 39.70-45.00, based on an aromatic amine-4,4'-diaminodiphenylsulfone hardener 13.21-19.20, a catalyst of hardening - a complex compound of boron trifluoride with benzylamine 0.20-0.24, an organic solvent - 39.78-45.00. Claimed is prepreg, which includes the said epoxy binding agent and a fibrous filling agent - carbon braids, tapes, tissues with the following component ratio, wt p.: the said epoxy binding agent 25-50, the said fibrous filling agent 50-75. Claimed is a product, produced by moulding of the said prepreg. The invention makes it possible to create the epoxy binding agent and prepreg of higher viability and heat resistance, with reduced modes of hardening and thermal processing.EFFECT: invention makes it possible to obtain products with improved physical-mechanical properties.6 cl, 4 tbl, 10 ex |
