DEFINITIONS OPTIMAL CONTENT OF HARDENER IN POLYESTER BINDERS TO CREATE STORIES WITH HIGH ADHESION PROPERTIES
Abstract
Analyzed adhesive properties and residual stresses in composite materials based on brand Norsodyne O AL 12335 polyester resin adding different hardeners to it in nature. It was found that the adhesive properties maksimalnymy rates among the studied matrices are different materials stitched hardeners Akperox A50 and Butanox-M50. The influence of the content of these hardeners in polyester resin Norsodyne O 12335 AL changing their concentrations in the range of q = 40...60 parts by weight on q = 100 parts by weight of resin. It is found that the highest rates of adhesive strength with the addition of a material Butanox-M50 hardener in an amount of q = 1,0 parts. Additionally, we investigate the properties of the matrix by adding cobalt accelerator. When this matrix is designed based on polyester resin Norsodyne O 12335 AL, crosslinked Butanox-M50 hardener in an amount of q = 1,0 parts and when the content of cobalt accelerator q = 0,10 parts. The matrix has the following properties: adhesion strength in the separation – σa = 19,8 MPa, the adhesive shear strength – τ = 6,4 MPa, residual stresses – σr = 1,5 MPa.
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