Экспериментальные свидетельства неоднозначности влияния графена на прочность и стойкость полиэпоксида
Abstract
It is established that the filling with graphenes reduces the compressive strength, abrasion resistance, and also resistance to aggressive liquids (conc.HNO3), chloromethylene and a mixture of acetone and ethyl acetate). The probable reason for this is that the author sees the features of the plate structure of graphene, prone to deactivation (self-rotation) of particles and therefore sensitive to the technology of its kneading in resin when cured. At the same time, there is a important increase (by 1.3-1.8 times) in the strength at normal adhesion separation of the glued steel cylinders. Studies have shown the limited positive effects of graphene as a filler of epoxides, although its introduction can significantly improve certain practical characteristics (adhesion, thermal and electrical conductivity).
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. Plasticheskie massy. 2019;(1-2):31-36. (In Russ.)
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