scholarly journals Application of r-GO-MMT Hybrid Nanofillers for Improving Strength and Flame Retardancy of Epoxy/Glass Fibre Composites

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Vijayananth Kavimani ◽  
Balasubramaniam Stalin ◽  
Pudhupalayam Muthukutti Gopal ◽  
Manickam Ravichandran ◽  
Alagar Karthick ◽  
...  

The application of nanomaterials as a strengthening agent in the fabrication of polymer nanocomposites has gained significant attention due to distinctive properties which can be utilised in structural applications. In this study, reduced graphene oxide (r-GO) and montmorillonite (MMT) nanoclay were used as filler materials to fabricate hybrid epoxy-based nanocomposites. The synergistic effect of nanomaterials on flammability and mechanical behaviour of nanocomposites were studied. Results revealed that the addition of nanofiller showcases 97% and 44.5% improvement in tensile and flexural strength. However, an increment in the percentage of filler material over 0.3% exhibits a decremental mechanical property trend. Likewise, the addition of nanofiller increases the nonignition timing of the glass-fibre-reinforced epoxy composites. Fracture surface morphology displays the occurrence of the ductile fracture mechanism owing to the presence of hybrid fillers.

2000 ◽  
Vol 9 (5) ◽  
pp. 096369350000900 ◽  
Author(s):  
Qiang Yuan ◽  
Ming-Bao Yang ◽  
Yiu-Wing Mai

Light curing of fibre composites was studied to explore its usefulness as a cost-effective production technique without unacceptable sacrifices of mechanical properties. Knitted continuous glass fibre reinforced polyester composites were cured by ultraviolet light and vacuum bag resin infusion (VBRI). A maximum thickness of 13 mm could be achieved with this technique. The compressive strength was shown to be independent of laminate thickness; but both the flexural strength and modulus were reduced with increasing thickness of laminate. The impact damage was also studied using drop-weight impact tests. For the same impact energy imposed on the laminates, the delamination areas decreased with laminate thickness.


2004 ◽  
Vol 1 (5) ◽  
pp. 237-242
Author(s):  
H. S. Patel ◽  
K. K. Panchal ◽  
S. R. Patel ◽  
S. N. Desai

Novel unsaturated poly (ester- amide) resins (UPEAs) were prepared by the reaction between an epoxy resin, namely diglycidyl ether of bisphenol–A (DGEBA) and unsaturated aliphatic bisamic acids using a base catalyst. These UPEAs were then blended with a vinyl monomer namely, Vinyl acetate (VA) to produce a homogeneous resin syrup. The curing of these UPEAs-VA resin blends was carried out by using benzoyl peroxide (BPO) as an initiator for the radical polymerization and was monitored by using a differential scanning calorimeter (DSC). The glass fibre reinforced composites (i.e. laminates) of these UPEA-VA resin blends were fabricated using the DSC data. The chemical, mechanical and electrical properties of the glass fibre composites have also been evaluated. The unreinforced cured samples of the UPEA-VA resin blends were also analyzed by thermogravimetry (TGA).


2015 ◽  
Vol 725-726 ◽  
pp. 617-622 ◽  
Author(s):  
Nikita Afanasev ◽  
Petr Martynov ◽  
Oleg Stolyarov

This study deals with design and evaluation of mechanical properties of the I-shape beam made from plain weave fiberglass fabric and epoxy resin. The possibility of production of I-beam with fiberglass laminate stitched layers has been demonstrated and the prototype of glass-fibre-reinforced epoxy I-beam was manufactured. Tensile properties of fiberglass of manufactured samples were investigated. The results showed that the investigated fiberglass composite has a sufficiently high tensile strength comparable to steel. However, the modulus of elasticity of the samples is quite low.


In recent years, there has been a growing need for natural fibre reinforced composite materials especially materials with good mechanical properties in order to substitute glass fibre based composite products to showcase a better engineering class for structural applications. Here the properties of jute fabric reinforced composite has been compared and analysed with e-glass fibre matte reinforced composite. The mercerized jute and e- glass fibre mats are treated with isophthalic resin. Charcoal powder has been used as a filler material constituting two percentage of the whole weight of entire composite. Isophthalic polyester resins offer substantially higher strength, better flexibility and chemical resistance. The properties of the jute composite and e-glass composite are determined by a series of tests such as Tensile, Flexural, Impact, Scanning Electron Microscopy (SEM) and Rate of Burning tests. The newly obtained composites provide a better usage for applications that require a much better physical strength and mechanical properties.


2004 ◽  
Vol 1 (1) ◽  
pp. 32-37 ◽  
Author(s):  
Hasmukh S. Patel ◽  
Kumar K. Panchal

Novel unsaturated poly (ester-amide) resins (UPEAs) were prepared by the reaction between an epoxy resin, namely diglycidyl ether of bisphenol–A (DGEBA) and unsaturated aliphatic bisamic acids using a base catalyst. These UPEAs were then blended with a vinyl monomer namely, Styrene (STY.) to produce a homogeneous resin syrup. The curing of these UPEAs-STY. resin blends was carried out by using benzoyl peroxide (BPO) as a catalyst and was monitored by using a differential scanning calorimeter (DSC). The glass fibre reinforced composites (i.e. laminates) of these UPEA-STY. resin blends were fabricated using the DSC data. The chemical, mechanical and electrical properties of the glass fibre composites have also been evaluated. The unreinforced cured samples of the UPEA-STY. resin blends were also analyzed by thermogravimetry (TGA).


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