CREATION OF A TWO-COMPONENT POLYMER MATRIX WITH IMPROVED ADHESION PROPERTIES FOR RESTORING DETAILS OF SEA AND RIVER TRANSPORT
10.33815/2313-4763.2018.2.19.205–210
Abstract
In this work the properties of polymer composite materials based on epoxy and polyester resins are investigated. The influence of a polyester binder in an epoxy oligomer on the adhesive strength during peeling and the occurrence of residual stresses in the composite has been experimentally proved. An epoxy-polyester matrix with improved adhesion properties has been developed for use in the repair and rework of details and mechanisms of sea and river transport. It has been found that for the formation of a composite material with improved adhesion properties, the optimum content of polyester resin ENYDYNE H 68372 TAE is q = 80...100 weight parts on q = 100 weight parts of epoxy oligomer ED-20. The developed matrix is characterized by the next off properties: adhesion strength at break – σa = 47.0...45.3 MPa, residual stresses – σr = 3.4...2.7 MPa.
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