| 摘要 |
FIELD: polymer materials. ^ SUBSTANCE: polymeric pressed composition is fabricated by impregnating basalt thread with liquid mixture of phenol and formaldehyde monomers in presence of sodium hydroxide catalyst at ratio 1:1.4:0.02, respectively, followed by polycondensation of resol phenol-formaldehyde oligomer at 90°C for 60 min at basalt thread-to-oligomer weight ratio 1:1, after which resulting material is dried for 15 min at 120°C and pressed for 9 min at 150°C and pressure 25 MPa to produce composite. ^ EFFECT: improved physico-mechanical properties of composites, which can be used in construction, instrumentation and mechanical engineering. ^ 2 cl, 1 tbl, 13 ex |
