Thermal, mechanical and vibration characteristics of epoxy-clay nanocomposites

Mohan, T. P.; Kumar, Mukesh; Velmurugan, R.

doi:10.1007/s10853-006-0278-2

Cited by 53 publications

(32 citation statements)

References 22 publications

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“…% of MC, and for higher MC addition in epoxy polymer, damping factor decreases but above the value of matrix material. The increased stiffness due to the addition of MC improves damping factor [24]. Similar effect in damping is noted for 4th mode of natural frequency of epoxy filled MC.…”

Section: Vibration Characteristicssupporting

confidence: 67%

“…Thermoset epoxy-clay nanocomposites (ECN) are studied under different curing conditions, synthetic routes, organoclays, etc. The report suggests that good exfoliation can be achieved in ECN when amine based curing agents are used [21][22][23][24].…”

mentioning

confidence: 95%

“…The fracture surface roughness indicates that crack propagation is large and increased the torturous path of propagating crack [24]. This effect results in higher stress to failure and caused improved strength of nanocomposites.…”

mentioning

confidence: 99%

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Hydrophilic Modified Clay Nanocomposites: Effect of Clay on Thermal and Vibrational Properties

Kishore¹,

Venkatesh²,

Kumar

et al. 2014

ILCPA

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Epoxy (LY-556/HY-951) system filled with modified clay (MC) was synthesized by using mechanical shear mixing with the addition of hardener as tri-ethylene-tetra-amine (TETA). The effect of the fumed silica can be negated by the application of a shear force (e.g. mixing, brushing, spraying etc), allowing the liquid to flow, level out and permit the escape of entrapped air. The reinforcement effects of MC in the epoxy polymer on thermal, mechanical and vibration properties were studied. Curing study shows that the addition MC does not show any effect in the curing behavior of epoxy polymer. Thermogravimetry analysis (TGA) shows enhanced thermal stability for epoxy with MC fillers. The epoxy with MC fillers shows considerable improvement on tensile and impact properties over pure epoxy polymer. SEM studies shows that addition of clay significantly turns the epoxy system from brittle to ductile nature was played instrumental in scaling performance. The improvement in tensile and impact properties of nanocomposites is supported with the fracture surface studies. Epoxy with MC fillers shows enhanced vibration characteristics than that of the pure epoxy polymer. FTIR studies indicated the formation of C-H bonds on the surface of the nanocomposites.

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Section: Vibration Characteristicssupporting

confidence: 67%

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confidence: 95%

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Hydrophilic Modified Clay Nanocomposites: Effect of Clay on Thermal and Vibrational Properties

Kishore¹,

Venkatesh²,

Kumar

et al. 2014

ILCPA

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“…Improvement of tensile strength of about 32% is noticed in laminates with 3% clay than laminates without clay. Similar improvement is reported in our earlier studies [13]. Similarly the improvements in tensile modulus is observed to be about 15% for laminate with 3% clay and about 10% for laminates with 4% and 5% clay.…”

Section: Preparation Of Nano Compositessupporting

confidence: 91%

Modal analysis of pre and post impacted nano composite laminates

Ramachandran

2011

Lat. Am. j. solids struct.

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Modal analysis is carried out on pre and post impacted nano composite laminates. The laminates are prepared using 3, 5 and 8 layers of 610gsm glass woven roving mats(WRM) with epoxy resin and montmorillonite(MMT) clay content is varied from 1% to 5%. Impulse hammer technique is used to find natural frequency and damping factor of laminates. Medium velocity impact tests are conducted by using a gas gun. The vibration responses of natural frequency and damping factor are obtained and are studied for laminates with all edges clamped boundary conditions. Results show considerable improvement in natural frequency and damping factor due to nano clay addition. It is also seen that the nano clay controls the delamination due to impact loading.

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“…Therefore, the tensile strength showed maximum value at 0.25 wt% of OB [51], i.e. 0.25 wt% is the optimum concentration for forming compact structure.…”

Section: Mechanical Propertiesmentioning

confidence: 92%

Electrophysical characteristics of polyurethane/organo-bentonite nanocomposites

Motawie

Madani

Esmail

et al. 2014

Egyptian Journal of Petroleum

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Modification of the Egyptian Bentonite (EB) was carried out using organo-modifier namely; octadecylamine ODA. Before the modification, the cation exchange capacity (CEC) of the EB was measured, also it was purified from different impurities using HCl and distilled water. The Organo-bentonite OB was characterized using IR, XRD, and TEM. PU/ODA-B nanocomposites were prepared by in situ polymerization then characterized by XRD and TEM. An amount of ODA-B ranging from 0.25% up to 5% by weight was added to the polyol component of the resin before mixing with toluene diisocynate TDI. TEM showed that the nanocomposites achieved good dispersion in the polyurethane matrix. The mechanical, swelling and electrical properties of the nanocomposites were measured. The results indicate that the tensile strength of all the nanocomposites enhanced with the addition of OB compared with the pure PU. The crosslink density of the nanocomposites increases with increasing the content of OB. The Pool-Frenckel conduction mechanism predominates for all the nanocomposite samples and the blank one. ª 2014 Production and hosting by Elsevier B.V. on behalf of Egyptian Petroleum Research Institute.

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Thermal, mechanical and vibration characteristics of epoxy-clay nanocomposites

Cited by 53 publications

References 22 publications

Hydrophilic Modified Clay Nanocomposites: Effect of Clay on Thermal and Vibrational Properties

Hydrophilic Modified Clay Nanocomposites: Effect of Clay on Thermal and Vibrational Properties

Modal analysis of pre and post impacted nano composite laminates

Electrophysical characteristics of polyurethane/organo-bentonite nanocomposites

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