6533b858fe1ef96bd12b6505
RESEARCH PRODUCT
Effects of aging in salt spray conditions on flax and flax/basalt reinforced composites: Wettability and dynamic mechanical properties
Vincenzo FioreLuigi CalabreseT. ScaliciAntonino ValenzaEdoardo ProverbioG. GaltieriG. Di Bellasubject
Materials science02 engineering and technology010402 general chemistry01 natural sciencesIndustrial and Manufacturing EngineeringA. Polymer-matrix composites (PMCs)Water uptakeB. Environmental degradationComposite materialA. HybridMechanical EngineeringEpoxy matrixDynamic mechanical analysisPolymerematrix composites (PMCs)021001 nanoscience & nanotechnologyHybrid0104 chemical sciencesEnvironmental degradationA. Hybrid; A. Polymer-matrix composites (PMCs); B. Environmental degradation; B. Wettability; Ceramics and Composites; Mechanics of Materials; Industrial and Manufacturing Engineering; Mechanical EngineeringSettore ING-IND/22 - Scienza E Tecnologia Dei MaterialiMechanics of MaterialsCeramics and CompositesWettabilityWetting0210 nano-technologyB. Wettabilitydescription
Abstract In the last years, the industrial policies are more attentive to issues concerning sustainability, recycling and environmental care. Therefore, the use of natural fibres in composite materials has spread more and more. This paper deals with flax and basalt fibres within an epoxy matrix by investigating the wettability and the dynamic mechanical properties of the resulting composites, subjected to long-term aging tests in critical environmental conditions. The first laminate was constituted by stacking ten layers of bidirectional flax fabrics. The second one was produced by replacing two external flax layers with two layers of basalt mat, for each side of the laminate. Both laminates were exposed to salt-fog environmental conditions, according to ASTM B 117 standard, for 60 days. Every 15 days of aging, the wettability and the dynamic mechanical properties of both laminates were evaluated. The results of wettability were compared with those of the water uptake test obtained in a previous work. Moreover, an analysis of variance (ANOVA) was performed in order to evaluate how some parameters (i.e. aging condition and material) and their interaction influence the mechanical and surface properties of investigated composites. Finally, a dynamic mechanical analysis was carried out in order to compare the effects of aging on the bulk properties of the investigated laminates.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2016-05-01 |