Properties of Composite Materials Based on Epoxy-Diane Resin, Modified Di[1-(2-Glycidyloxyethoxy) Ethyl] Polyethylene Glycol Ether
Abstract: The effect of di[1-(2 glycidyloxyethoxy) ethyl] polyethylene glycol ether with different ethylene glycol content on the physico-mechanical and adhesive properties of composite materials based on industrial epoxy resin ED-20 was studied in a wide range of concentrations. It was found that the glass transition temperature monotonically decreases with increasing concentration of modifiers to a greater extent, the higher the ethylene glycol content in them. The tensile strength value increases with the introduction of small amounts of modifiers with a small (1 or 2 units) ethylene glycol content, reaching a maximum at 10 wt. h., after which it begins to decrease monotonously. For compositions containing a larger (7 units) amount of ethylene glycol, the maximum strength concentration dependence does not manifest itself, but there is a monotonous and rather rapid decrease in the strength value with an increase in the concentration of the modifier. In the case of the elastic modulus, the extreme dependence of the parameter on the concentration is observed for all modifiers. The deformation at rupture monotonically increases with increasing concentration of the modifier at a higher rate, the higher the ethylene glycol content in the latter. It is shown that the modified systems exceed the base resin ED-20 by more than 2 times in terms of adhesive shear strength. Based on the observed trend of changing properties, the conclusion is made about the antiplasticizing effect of relatively small additives of di[1-(2 glycidyloxyethoxy) ethyl] polyethylene glycol ether on the polymer matrix formed by the cured resin ED-20.
Keywords: epoxy-diane resin ED-20, modification, di[1-(2 glycidyloxy ethoxy) ethyl] polyethylene glycol ether, glass transition temperature, deformation and strength properties, adhesive properties, antiplasticization.
Pages: 112-122.
For citation: Kochergin, Yu. S.; Zolotareva, V. V.; Nedolya, N. A. Properties of Composite Materials Based on Epoxy-Diane Resin, Modified Di[1-(2-Glycidyloxyethoxy) Ethyl] Polyethylene Glycol Ether. – Text : electronic. – In: Proceeding of the Donbas National Academy of Civil Engineering and Architecture. – 2024. – Issue 2024-1(165) Modern building materials. – Р. 112-122. – URL: https://donnasa.ru/publish_house/journals/vestnik/2024/2024-1(165)/st_17_kochergin_zolotareva_nedolya.pdf (date of access: 19.11.2024). – ISSN 2519-2817.
Issue 2024-1 (165)
Journal: Proceeding of the Donbas National Academy of Civil Engineering and Architecture
Publish house: Donbas National Academy of Civil Engineering and Architecture
Journal: Proceeding of the Donbas National Academy of Civil Engineering and Architecture
Publish house: Donbas National Academy of Civil Engineering and Architecture