Static and Dynamic Mechanical Properties of Vinylester Resin Matrix Composites Filled with Fly Ash

Ray, Dipa; Bhattacharya, D.; Mohanty, Amar K.; Drzal, Lawrence T.; Misra, Manjusri

doi:10.1002/mame.200600097

Cited by 41 publications

(37 citation statements)

References 12 publications

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“…They suggested some possible mechanical anchorage between the filler and polymer matrix although there may not be much physical interaction between them. 47 The notched izod impact strength of the RHDPE/CF/MA-g-HDPE composites did not show any appreciable change with the incorporation of FACS (Table II) The mechanical findings were in agreement with the morphological interpretations from SEM as discussed in later section. The modulus increased significantly (p < 0.05) by 10,13,29, and 7% at 2.5, 5.0, 7.5, and 10 wt % FACS loading, respectively, in comparison to that without FACS.…”

Section: Effect Of Compatibilizersupporting

confidence: 82%

Influence of fly ash cenospheres on performance of coir fiber‐reinforced recycled high‐density polyethylene biocomposites

Satapathy

Kothapalli

2015

J of Applied Polymer Sci

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Recycled high-density polyethylene (RHDPE)/coir fiber (CF)-reinforced biocomposites were fabricated using melt blending technique in a twin-screw extruder and the test specimens were prepared in an automatic injection molding machine. Variation in mechanical properties, crystallization behavior, water absorption, and thermal stability with the addition of fly ash cenospheres (FACS) in RHDPE/CF composites were investigated. It was observed that the tensile modulus, flexural strength, flexural modulus, and hardness properties of RHDPE increase with an increase in fiber loading from 10 to 30 wt %. Composites prepared using 30 wt % CF and 1 wt % MA-g-HDPE exhibited optimum mechanical performance with an increase in tensile modulus to 217%, flexural strength to 30%, flexural modulus to 97%, and hardness to 27% when compared with the RHDPE matrix. Addition of FACS results in a significant increase in the flexural modulus and hardness of the RHDPE/CF composites. Dynamic mechanical analysis tests of the RHDPE/CF/FACS biocomposites in presence of MA-g-HDPE revealed an increase in storage (E 0 ) and loss (E 00 ) modulus with reduction in damping factor (tan d), confirming a strong influence between the fiber/FACS and MA-g-HDPE in the RHDPE matrix. Differential scanning calorimetry, thermogravimetric analysis thermograms also showed improved thermal properties in the composites when compared with RHDPE matrix. The main motivation of this study was to prepare a value added and low-cost composite material with optimum properties from consumer and industrial wastes as matrix and filler. V C 2015 Wiley Periodicals, Inc. J. Appl. Polym.Sci. 2015, 132, 42237.

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Section: Effect Of Compatibilizersupporting

confidence: 82%

Influence of fly ash cenospheres on performance of coir fiber‐reinforced recycled high‐density polyethylene biocomposites

Satapathy

Kothapalli

2015

J of Applied Polymer Sci

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“…The fracture toughness of the 15 w/t% sawdust (300-425 μm) reinforced vinyl ester composite was 34.83 MPa Figure 13, magnified at 200 times, illustrates the fractured surface of neat vinyl ester resin, illustrating faint striations followed by a turbulent flow pattern of the fractured zone. The fractured surface is relatively smooth, typical of brittle materials, and it is similar to the fractured surface of neat vinyl ester by other studies [18,19]. Figure 14 shows the fractured surface of 5% w/t sawdust (300-425 μm) reinforced vinyl ester composite, 200X.…”

Section: Cost Analysissupporting

confidence: 74%

Fracture Toughness of Vinyl Ester Composites Reinforced with Sawdust and Postcured in Microwaves

Prajapati

Trada

2012

International Journal of Microwave Science and Technology

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A commercial vinyl ester resin supplied by Hetron Chemical Pty. was reinforced with varying percentages by weight of sawdust. The sawdust particles were sieved into 3 different sizes, which were <300 μm, 300-425 μm, and 425-1180 μm, respectively, with a view to increase its fracture toughness for civil and structural applications. The sawdust used varied from 0% w/t to 15% w/t in step of 5% w/t. For higher w/t% of sawdust, the mixture would be too sticky to be mixed and cast. The cast composites were cured in ambient conditions and then postcured in microwave irradiation. They were then tested for fracture toughness using short bar tests. The values of fracture toughness of the composites increased with increasing particulate size, and this is due to the size distribution of the filler. It was found that the optimum amount of sawdust (425-1180 μm) was 15% w/t, with which the increase in fracture toughness was 126% as compared to neat resin and the reduction in cost was 15%. Furthermore, the optimum amount of sawdust (300-425 μm) was also 15% w/t, with which the increase in fracture toughness was 28.3% as compared to neat resin and the reduction in cost was again 15%.

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“…They also blamed voids for the lowering in flexural strength. 18 Bose et al also reported a lowering in tensile strength values of Nylon 6/fly ash composites with the increase in fly ash loading and in case of flexural strength, they observed an initial rise up to 20 wt % filler content, followed by a reduction in values. The latter was similar to that of this study.…”

Section: Materials and Methodologymentioning

confidence: 91%

Contrast on tensile and flexural properties of glass powder reinforced epoxy composites: Pilot study

Wong

2011

J of Applied Polymer Sci

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Epoxy resin was filled with glass powder to optimize the tensile and flexural strength of the composite for structural applications by a research center in the University of Southern Queensland (USQ). To reduce costs, the center wishes to fill as much glass microspheres as possible subject to maintaining sufficient strength of the composites in structural applications. This project varies the percentage by weight of the glass powder in the composites. After casting the composites to the molds, they were cured at ambient conditions for 24 h. They were then postcured in a conventional oven and subjected to tensile and flexural tests. The contribution of the study was that if tensile and flexural properties were the most important factors to be considered in the applications of the composites, the maximum amount of glass powder can be added to the resin will be five (5) percent. It was also found that the fractured surfaces examined under scanning electron microscope were correlated with the tensile and flexural strength It is also hoped that the discussion and results in this work would not only contribute toward the development of glass powder reinforced epoxy composites with better material properties, but also useful for the investigations of tensile and flexural properties in other composites.

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Static and Dynamic Mechanical Properties of Vinylester Resin Matrix Composites Filled with Fly Ash

Cited by 41 publications

References 12 publications

Influence of fly ash cenospheres on performance of coir fiber‐reinforced recycled high‐density polyethylene biocomposites

Influence of fly ash cenospheres on performance of coir fiber‐reinforced recycled high‐density polyethylene biocomposites

Fracture Toughness of Vinyl Ester Composites Reinforced with Sawdust and Postcured in Microwaves

Contrast on tensile and flexural properties of glass powder reinforced epoxy composites: Pilot study

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