Experimental investigation of tensile creep behavior of polymer nanocomposites

Devasenapathi, V.; Monish, P.; Prabu, S. Balasivanandha

doi:10.1007/s00170-008-1877-7

Cited by 17 publications

(23 citation statements)

References 5 publications

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“…In all cases, the nanocomposites show lower deformations in comparison to the pristine polymer; this result is in agreement with that observed during DMA tests. These overall results are in agreement with the findings of other researchers on similar systems and could be attributed to lower macromolecular mobility induced by the presence of clay particles and particularly by the intercalation degree achieved.…”

Section: Resultssupporting

confidence: 93%

Creep response of a LDPE‐based nanocomposite

Mantia

Mistretta

Rodonò

et al. 2016

J of Applied Polymer Sci

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Polymer nanocomposites and their behavior have been widely investigated by several paths, including mechanical, rheological, and permeability tests, finding that several parameters (such as the polymer matrix, the nanofiller, their amounts, the presence of compatibilizers, processing parameters, etc.) can influence the main properties. However, less information is available regarding the creep response of polymer nanocomposites; in particular, few or no data are reported about the combined effect of different loads and different temperatures. In this article, the creep behavior of a low density polyethylene/organomodified clay nanocomposite has been investigated. The characterization of viscoelastic response has taken into account both the effects of applied load and temperature, which are often considered separately. Dynamic–mechanical and structural analysis was also performed in order to get a deeper understanding of the involved phenomena. The nanocomposite showed lower creep deformations (up to ∼20%) and the relative differences with the neat polymer matrix were found to be increasing upon increasing the applied load (up to ∼24%) and the temperature (up to ∼38%). © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 44180.

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Section: Resultssupporting

confidence: 93%

Creep response of a LDPE‐based nanocomposite

Mantia

Mistretta

Rodonò

et al. 2016

J of Applied Polymer Sci

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“…On the other hand, Chen and Yang [6] reported that the modification of natural clays with onium ions could enhance interlayer spacing and thus increasing the glass transition temperature of resulting nanocomposites. In addition, widespread investigations have been made to evaluate the effect of clay inclusions on tensile strength [13][14][15][16], Young's modulus [17,18], tensile creep behavior [19], flexural properties [20][21][22], heat resistance [23,24], barrier performance [25] and flame retardancy [26] of nanocomposites.…”

Section: Introductionmentioning

confidence: 99%

The effects of material formulation and manufacturing process on mechanical and thermal properties of epoxy/clay nanocomposites

Salam

Dong

Davies

et al. 2016

Int J Adv Manuf Technol

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A holistic study was conducted to investigate the combined effect of three different pre-mixing processes, namely mechanical mixing, ultrasonication and centrifugation, on mechanical and thermal properties of epoxy/clay nanocomposites reinforced with different platelet-like montmorillonite (MMT) clays (Cloisite Na + , Cloisite 10A, Cloisite 15 or Cloisite 93A) at clay contents of 3-10 wt%. Furthermore, the effect of combined pre-mixing processes and material formulation on clay dispersion and corresponding material properties of resulting composites was investigated using X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), flexural and Charpy impact tests, Rockwell hardness tests and differential scanning calorimetry (DSC). A high level of clay agglomeration and partially intercalated/exfoliated clay structures were observed regardless of clay type and content. Epoxy/clay nanocomposites demonstrate an overall noticeable improvement of up to 10 % in the glass transition temperature (T g ) compared to that of neat epoxy, which is interpreted by the inclusion of MMT clays acting as rigid fillers to restrict the chain mobility of epoxy matrices. The impact strength of epoxy/clay nanocomposites was also found to increase by up to 24 % with the addition of 3 wt% Cloisite Na + clays. However, their flexural strength and hardness diminished when compared to those of neat epoxy, arising from several effects including clay agglomeration, widely distributed microvoids and microcracks as well as weak interfacial bonding between clay particles and epoxy matrices, as confirmed from TEM and SEM results. Overall, it is suggested that an improved technique should be used for the combination of pre-mixing processes in order to achieve the optimal manufacturing condition of uniform clay dispersion and minimal void contents.

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“…To overcome the disadvantage, works were done started their attempts at the incorporation of nano -fillers. Rigid nan fillers used to improve mechanical performance of thermoplastic polymers have received considerable attentions in recent years [8][9][10][11][12].Strength, stiffness and toughness of nanocomposites can be simultaneously enhanced by improving dispersion of nanoparticles in polymer matrix as well as interfacial interaction between nanoparticles and matrix [13 -15]. Previous works [16 -18] showed that the glass transition temperature of polymers was increased by the incorporation of nanoparticles owing to a good bonding at the interface that restricts motion of the polymer chains.…”

Section: Introductionmentioning

confidence: 99%

Effect of Temperature on Creep behavior of Poly(vinyl chloride) Loaded with Single Walled Carbon Nanotubes

Abu-Abdeen¹,

Aboud²,

Ramzy³

2016

IJSEA

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Single walled carbon nanotubes (SWCNTs) were synthesized using alcohol catalyst chemical vapor deposition ACCVD method using ethanol and were characterized with TEM. The prepared SWCNTs were incorporated with different concentrations in Poly(vinyl chloride) with different concentrations. The effect of both SWCNTs concentrations and temperature on creep and creep recovery of PVC were studied. Burger's model was applied to the region of creep and material parameters like instantaneous elastic modulus, Voigt elastic modulus and viscosity, Newtonian viscosity and linear thermal expansion coefficient were calculated at different concentrations of SWCNTs and different temperatures. These parameters were found to have a maximum at 1 wt % of SWCNTs and also found to decrease with increasing temperature. The recovery relaxation time was calculated and the activation energy of chains upon heating was calculated and samples containing 5 wt% of SWCNTs was found to have a maximum of 0.36 eV.

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Experimental investigation of tensile creep behavior of polymer nanocomposites

Cited by 17 publications

References 5 publications

Creep response of a LDPE‐based nanocomposite

Creep response of a LDPE‐based nanocomposite

The effects of material formulation and manufacturing process on mechanical and thermal properties of epoxy/clay nanocomposites

Effect of Temperature on Creep behavior of Poly(vinyl chloride) Loaded with Single Walled Carbon Nanotubes

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