Long term hydrothermal effect on the mechanical and thermo-mechanical properties of carbon nanofiber doped epoxy composites
-
Sunirmal Saha
and
Smrutisikha Bal
Abstract
The influence of water absorption on the mechanical and thermo-mechanical behaviour of carbon nanofibre (CNF) doped epoxy composites was investigated. When immersed in seawater for a long interval of 6 months, all the composite specimens endured saturation whilst weight change of composites was periodically monitored after removal of travelling specimens from a water-beaker. The equilibrium water content and the diffusion coefficient of all composites were evaluated with the help of Fick’s law of diffusion. The results demonstrated a general reduction in flexural modulus and strength, hardness, storage modulus and glass transition temperature (Tg) for seawater exposed specimens due to absorption of seawater as compared to their unexposed specimens. After-effects of water absorption such as plasticisation, swelling of epoxy polymer, interfacial damages and micro-cracks, were marked as the main reasons behind the deterioration of properties. However, among all, the least degradation in properties was observed in the nanocomposite with 0.75 wt.% CNFs loading. Such trivial degradation in properties is due to formation of strong interface of CNFs with the epoxy polymer. The experimental findings were further confirmed by the microstructures of fractured specimens using field emission scanning electron microscopy.
References
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©2018 Walter de Gruyter GmbH, Berlin/Boston
Articles in the same Issue
- Frontmatter
- Material properties
- Influence of particle size of isotactic polypropylene (iPP) on barrier property against agglomeration of homogenized microcrystalline cellulose (HMCC) in iPP/HMCC composites
- An investigation of the impact of an amino-ended hyperbranched polymer as a new type of modifier on the compatibility of PLA/PBAT blends
- Study on the adhesive properties of reactive liquid rubber toughened epoxy-clay hybrid nanocomposites
- Morphology, rheology and biodegradation of oxo-degradable polypropylene/polylactide blends
- Long term hydrothermal effect on the mechanical and thermo-mechanical properties of carbon nanofiber doped epoxy composites
- Long term accelerated aging investigation of an epoxy/silica nanocomposite for high voltage insulation
- Mechanical and morphological properties of modified halloysite nanotube filled ethylene-vinyl acetate copolymer nanocomposites
- Evaluation of polypropylene hybrid composites containing glass fiber and basalt powder
- Preparation and assembly
- Ibuprofen loaded nano-ethanolic liposomes carbopol gel system: in vitro characterization and anti-inflammatory efficacy assessment in Wistar rats
- Preparation of oriented bacterial cellulose nanofibers by flowing medium-assisted biosynthesis and influence of flowing velocity
- Engineering and processing
- Thin-wall injection molding of high-density polyethylene for infrared radiation system lenses
- Replication of micro-structured injection molds using physical vapor deposition coating and dynamic laser mold tempering
Articles in the same Issue
- Frontmatter
- Material properties
- Influence of particle size of isotactic polypropylene (iPP) on barrier property against agglomeration of homogenized microcrystalline cellulose (HMCC) in iPP/HMCC composites
- An investigation of the impact of an amino-ended hyperbranched polymer as a new type of modifier on the compatibility of PLA/PBAT blends
- Study on the adhesive properties of reactive liquid rubber toughened epoxy-clay hybrid nanocomposites
- Morphology, rheology and biodegradation of oxo-degradable polypropylene/polylactide blends
- Long term hydrothermal effect on the mechanical and thermo-mechanical properties of carbon nanofiber doped epoxy composites
- Long term accelerated aging investigation of an epoxy/silica nanocomposite for high voltage insulation
- Mechanical and morphological properties of modified halloysite nanotube filled ethylene-vinyl acetate copolymer nanocomposites
- Evaluation of polypropylene hybrid composites containing glass fiber and basalt powder
- Preparation and assembly
- Ibuprofen loaded nano-ethanolic liposomes carbopol gel system: in vitro characterization and anti-inflammatory efficacy assessment in Wistar rats
- Preparation of oriented bacterial cellulose nanofibers by flowing medium-assisted biosynthesis and influence of flowing velocity
- Engineering and processing
- Thin-wall injection molding of high-density polyethylene for infrared radiation system lenses
- Replication of micro-structured injection molds using physical vapor deposition coating and dynamic laser mold tempering
