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RESEARCH PRODUCT
Effect of moisture on elastic and viscoelastic properties of epoxy and epoxy-based carbon fibre reinforced plastic filled with multiwall carbon nanotubes
Glaskova-kuzminaT.AniskevichA.MartoneA.GiordanoM.ZarrelliM.subject
Polymer-matrix composites (PMCs)Materials science02 engineering and technologyCarbon nanotube010402 general chemistryCarbon fibres01 natural sciencesViscoelasticitylaw.inventionFlexural strengthlawComposite materialMoistureFlexural modulusEpoxyCreepFibre-reinforced plastic021001 nanoscience & nanotechnologyEquilibrium moisture content0104 chemical sciencesCreepMechanics of Materialsvisual_artCeramics and Compositesvisual_art.visual_art_medium0210 nano-technologydescription
Abstract In this study, we investigated the peculiarities of moisture absorption and moisture-induced effects on the elastic and viscoelastic flexural properties of epoxy resin and carbon fibre reinforced plastic (CFRP) filled with multiwall carbon nanotubes (MWCNTs). Short-term cyclic creep-recovery tests of moistened epoxy and CFRP filled with MWCNTs revealed improvements in creep resistance for both materials. The addition of MWCNTs to the epoxy resin suppressed the moisture absorption by the material, causing a reduction in the diffusion coefficient by 31% and equilibrium moisture content by 15%. The addition of MWCNTs reduced the flexural strength of moistened epoxy and CFRP samples by approximately half, and also lowered the flexural modulus by ∼1.4 and ∼3 times, elastic strain by 1.25 and 1.04 times, viscoelastic strain by 1.39 and 1.03 times, and plastic strain by 2.68 and 1.60 times, respectively.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2016-11-01 | Composites Part A: Applied Science and Manufacturing |