Tensile, Flexural Properties of Unsaturated Polyester/Granite Powder and                 Unsaturated Polyester/Fly Ash Composites

Ramakrishna, H. V.; Priya, S. Padma; K., S.; Varadarajulu, A.

doi:10.1177/0731684405049862

Cited by 20 publications

(4 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Ramakrishna et al observed improvements in the tensile and flexural strengths in 40% FA‐filled 4% poly(methyl methacrylate)‐toughened epoxy matrix composites. Gupta et al reported an increase in the impact properties on the addition of FA in glass fiber/epoxy composites.…”

Section: Introductionmentioning

confidence: 99%

Lauric acid coated fly ash as a reinforcement in recycled polymer matrix composites

Sengupta

Ray

Mukhopadhyay

et al. 2014

J of Applied Polymer Sci

View full text Add to dashboard Cite

Sustainable composites were developed from fly ash (FA) and recycled polypropylene (R) with lauric acid (LA) as the coupling agent. The FA particles were surface-coated with 1, 2, 3, and 5 wt % LA, and the coating on the FA particles was verified by transmission electron microscopy and Fourier transform infrared spectroscopy. R and LA-coated FA particles were melt-mixed in a 1:1 weight ratio to achieve a high-filler-loaded composite. The flexural, impact, nanoindentation, and fracture surface analyses were carried out to examine the properties of the composites. The flexural strength and modulus values increased in the 2 wt % LA-coated FA/R composites by 6 and 50%, respectively, compared to the values of the uncoated FA/R composites, whereas the impact strength increased considerably by 119% in the 1 wt % LA-coated composites. Nanoindentation tests also showed an increase in the mechanical properties in the case of the 1 and 2 wt % LA-coated composites in comparison to the uncoated ones. Fracture surface studies done by scanning electron microscopy revealed improved interfacial interactions between the filler and matrix in the presence of the LA coupling agent. X-ray diffraction (XRD) studies indicated reorientations of the polymer chains in the presence of different concentrations of the LA coupling agent; this resulted into different crystallinities and crystallite sizes. Differential scanning calorimetry showed a significant difference in the crystalline peaks of the composites, and this corroborated well with the XRD observations. LA, thus, significantly influenced the structural properties of the composites, and this, in turn, influenced their mechanical and thermal properties.

show abstract

Section: Introductionmentioning

confidence: 99%

Lauric acid coated fly ash as a reinforcement in recycled polymer matrix composites

Sengupta

Ray

Mukhopadhyay

et al. 2014

J of Applied Polymer Sci

View full text Add to dashboard Cite

show abstract

“…Along with these, extensive research is going on to utilize fly ash as a filler in polymer matrix composites. Some researchers have reported their findings on fly ash filled polymer matrix composites [1][2][3][4][5][6][7][8][9][10][11]. Most of the studies reported are based on the mechanical, thermal, and electrical behavior of fly ash filled polymer matrix composites and a few reports are also available on the wear characteristics of such composites.…”

Section: Introductionmentioning

confidence: 99%

Friction and Wear Behavior of Vinylester Resin Matrix Composites Filled with Fly Ash Particles

Ray

Gnanamoorthy

2007

Journal of Reinforced Plastics and Composites

View full text Add to dashboard Cite

Fly ash filled vinylester resin matrix composites were prepared with a filler loading of 40 and 50 wt%. The friction and wear behavior of neat resin and fly ash filled composites were studied with the help of a pin-on-disc wear tester with the composite pin sliding over an abrasive sheet under three different normal loads. Wear behavior was quantified in terms of weight loss, linear wear, and coefficient of friction of the test samples; these were much higher in neat resin compared to composites. Among the composites, a better wear resistance was shown by the 40% filled composites with a lower wear loss, lesser linear wear, and a minimum value of the coefficient of friction. It was evident that the linear wear increased steadily in the case of vinylester resin with increase in sliding distance, whereas linear wear was much less and was almost constant in the composites with the increase in sliding distance under all three different normal loads. It was also observed that the difference between the coefficients of friction of the 40% and 50% filled composites decreased with the increase in the normal load. The fly ash filled vinylester resin matrix composites were thus found to be much more wear resistant than for neat resin and this behavior can be exploited for various newer applications.KEY WORDS: vinylester resin, fly ash filler, wear loss, linear wear, coefficient of friction.

show abstract

“…Kaushik et al 12 studied the mechanical properties and chemical resistance of short glass fiber-reinforced epoxy composites. Krishna et al 13 studied the tensile, impact, and chemical resistance properties of granite powder-epoxy composites. Sreenivasulu et al 14 studied the chemical resistance and tensile properties of short bamboo fiber-reinforced epoxy/poly carbonate composites.…”

Section: Introductionmentioning

confidence: 99%

Hybrid composites of oil palm empty fruit bunches/woven jute fiber: chemical resistance, physical, and impact properties

Jawaid

Khalil

Bakar

2011

Journal of Composite Materials

View full text Add to dashboard Cite

Natural fiber-based hybrid composites with oil palm empty fruit bunches (EFB) and woven jute (J w ) fibers were prepared by hand lay-up method. Epoxy resin was used as matrix and tri-layer hybrid composites of EFB/ woven jute /EFB and woven jute /EFB/ woven jute were prepared by keeping the EFB/ woven jute fiber weight ratio constant at 4:1. The chemical resistance properties of the EFB/ woven jute/EFB and woven jute /EFB/ woven jute fiber-reinforced hybrid composites were studied by using three acids, three alkalies, and three solvents. It was found from the chemical resistance test that all the composites are resistance to various chemicals. It was observed that marked reduction in void content of composites with hybridization of oil palm EFB with woven jute fiber. Density and moisture content study demonstrated that density and moisture content property was enhanced in hybrid composites. The hybrid composites showed lower impact properties than pure EFB composite. Izod impact strength of EFB/woven jute/EFB and woven jute/ EFB/woven jute hybrid was found to be 72.4 and 57.9 J/m, respectively. Impact fracture surface of the composites was studied with the help of scanning electron microscopy (SEM).

show abstract

Tensile, Flexural Properties of Unsaturated Polyester/Granite Powder and Unsaturated Polyester/Fly Ash Composites

Cited by 20 publications

References 3 publications

Lauric acid coated fly ash as a reinforcement in recycled polymer matrix composites

Lauric acid coated fly ash as a reinforcement in recycled polymer matrix composites

Friction and Wear Behavior of Vinylester Resin Matrix Composites Filled with Fly Ash Particles

Hybrid composites of oil palm empty fruit bunches/woven jute fiber: chemical resistance, physical, and impact properties

Contact Info

Product

Resources

About