Research of Composite Materials Based on Diglycyl Diphenylolmethane Derivatives
Yu. S. Kochergin, V. V. Zolotareva
State Organization of Higher Professional Education «Mikhail Turgan-Baranovsky Donetsk National University of Economics and Trade»
Abstract: A comparative study of the properties of epoxy composite materials based on diphenylolmethane and diphenylopropane is carried out. It was established that diphenylolmethane-based polymers are superior to diphenylolpropane-based analogues in terms of tensile strength, tensile deformation, water resistance, shear and tear adhesion at close values of heat resistance and elastic modulus. The observed effect is due to anti-plasticization as a result of the interaction of the polar groups of the polymer and the anti-plasticizer, the function of which is performed by the unreacted parts of the epoxy resin and hardener. In a wide range of concentrations, the effect of modifying additives of polytetramethylene ether glycol and oligodimethylsiloxane rubber SKTN on the deformation-strength and adhesive properties of polymers based on epoxidized diphenylolmethane derivatives was studied. It is established that the concentration dependences of tensile strength, deformation at break and the work of fracture of the material are extreme. In the region of low concentrations, maxima are observed whose intensity and position depend on the chemical nature of the modifiers and the curing regime of the composition. For samples cured without external heat supply, the hardening effect is more pronounced in comparison with heat-treated samples.
Keywords: diglycidyl ethers of diphenylolmethane and diphenylolpropane, hardener, epoxy composite material, physicomechanical and adhesive properties.
Pages: 17-25.
Link for citation: Kochergin, Yu. S.; Zolotareva, V. V. Research of Composite Materials Based on Diglycyl Diphenylolmethane Derivatives. – Text : electronic. – In: Proceeding of the Donbas National Academy of Civil Engineering and Architecture. – 2020. – Issue 2020-1(141) Modern building materials. – Р. 17-25. – URL: https://donnasa.ru/publish_house/journals/vestnik/2020/2020-1(141)/st_02_kochergin_zolotareva.pdf (date of access: 15.10.2024). (in Russian)
Issue 2020-1 (141)Journal: Proceeding of the Donbas National Academy of Civil Engineering and Architecture
Publish house: Donbas National Academy of Civil Engineering and Architecture