The effect of additions of ethylene copolymers on the mechanical properties of filled polyolefin composites based on polyethylene 10803-020 and whiting was investigated. It was established that the best deformation properties are ensured by introducing copolymers of ethylene with propylene with an ethylene content of 50–70%. It was shown that the increase in elongation at break when the copolymers are introduced is connected with amorphisation of the polymer base.
An investigation was made of the effect of copolymers of ethylene with vinyl acetate (CEVA) on the thermodynamic stability and structural and mechanical properties of cured composites based on low-density polyethylene (LDPE) and dicumyl peroxide with crosslinking coagent trimethylolpropane trimethylacrylate (TMPTMA). It was shown that, in the presence of CEVA, thermodynamic compatibility of LDPE with TMPTMA is ensured, and the chemical network density is increased significantly.
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