Epoxy polymers modified with polyetherimide. Part II: physicomechanical properties of modified epoxy oligomers and carbon fiber reinforced plastics based on them

Autor: U. G. Zvereva, Yu. A. Gorbatkina, D. V. Solomatin, M. Yu. Bamborin, O. V. Lebedeva, A. V. Shapagin, R. A. Korokhin, V. I. Solodilov
Rok vydání: 2019
Předmět:
Zdroj: Polymer Bulletin. 77:2039-2057
ISSN: 1436-2449
0170-0839
DOI: 10.1007/s00289-019-02841-9
Popis: The influence of the Ultem-1010 polyetherimide (PEI) on the physicomechanical properties of the ED-20 epoxy matrix and carbon-fiber-reinforced plastics (CFRP) based on the epoxy-polyetherimide binders is studied. It is shown that the introduction of PEI allows one to increase the impact strength and fracture toughness of the matrix 70 and 350%, respectively. The fracture toughness of the CFRP increases 40% with the rise in the PEI concentration. The correlation between the fracture toughness of the composites and their matrices has been established.
Databáze: OpenAIRE