DEVELOPMENT OF EPOXY POLYETHER MATRIX WITH IMPROVED ADHESION PROPERTIES TO IMPROVE THE RELIABILITY OF PARTS OF SHIP POWER PLANTS
Abstract
We studied the adhesion properties and residual stresses of composite materials based on epoxy binder with the addition of the polyester resin. For the polymerization of the composition used two hardener Butanox-M50, and polyethylene polyamine. Experimentally established optimum ratio of polyester resin Norsodyne O12335 AL epoxy oligomer ED-20 brand and developed a matrix based on them with increased adhesion of the following composition: bisphenol epoxy oligomer brand ED-20 (q = 100 parts by weight), polyester resin Norsodyne O 12335 AL (q = 100 parts) curing agent Butanox-M50 (q = 1 parts) polyethylenepolyamine hardener (q = 10 parts). The matrix has the following properties: adhesion strength in the separation – σa = 66,5 MPa, the adhesive shear strength – τ = 12,5 MPa, residual stresses – σr = 1.5 MPa. At the same time, to study the effect on the properties of cobalt accelerator developed matrix. It was found deterioration in the adhesive properties by the addition of an accelerator selected.
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