Nanoclay reinforced thermoplastic toughened epoxy hybrid syntactic foam: Surface morphology, mechanical and thermo mechanical properties

Asif, A.; Rao, V. Lakshmana; Ninan, K. N.

doi:10.1016/j.msea.2010.06.058

Cited by 36 publications

(22 citation statements)

References 28 publications

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“…As a result, sub‐critical flaws formed around the vicinity of the agglomerated microspheres, leading to the lowering of K 1c for M1 . Similar results were also observed for syntactic epoxy foams toughened with thermoplastic poly(ether ether ketone) and nano‐clay particles …”

Section: Physical and Mechanical Properties Of The Fabricated Macroposupporting

confidence: 85%

Enhancing the Fracture Resistance and Impact Toughness of Mechanically Frothed Epoxy Foams with Hollow Elastomeric Microspheres

Song

Tagarielli

Lee

2018

Macro Materials & Eng

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Nonporous elastomeric particles are often employed to improve the toughness of brittle epoxy foams but this also decreases their compressive strength and stiffness. Herein, a novel strategy utilizing hollow elastomeric microspheres as toughening agent for epoxy foams is presented. The addition of 0.5 wt.% hollow elastomeric microspheres into epoxy foam leads to a 15% increase in critical stress intensity factor (K 1c) to 0.38 MPa m0.5 and 33% increase in Charpy impact strength (acU ) to 1.05 kJ m−2, respectively, compared to unfilled epoxy foam (K 1c = 0.33 MPa m0.5 and acU = 0.79 kJ m−2). However, a further increase in the hollow elastomeric microsphere concentration to 1.0 wt.% leads to microsphere agglomeration, which reduces both K 1c and acU to 0.35 MPa m0.5 and 0.93 kJ m−2, respectively. Nevertheless, the added hollow elastomeric microspheres do not lead to a reduction in the quasi‐static compressive properties of the epoxy foams.

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Section: Physical and Mechanical Properties Of The Fabricated Macroposupporting

confidence: 85%

Enhancing the Fracture Resistance and Impact Toughness of Mechanically Frothed Epoxy Foams with Hollow Elastomeric Microspheres

Song

Tagarielli

Lee

2018

Macro Materials & Eng

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“…The addition of glass fiber produced only a slight improvement in fracture toughness while the addition of a small percentage of carbon fibers produced an important improvement in both fracture toughness. Asif et al . reinforced epoxy hybrid syntactic foams with nanoclay and PEEKMOH and studied the effect of concentrations on properties of foams.…”

Section: Introductionmentioning

confidence: 99%

Surface modification of hollow glass microsphere with different coupling agents for potential applications in phenolic syntactic foams

Huang

Zhang

et al. 2016

J of Applied Polymer Sci

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Modified hollow glass microsphere (HGM) particles have been prepared by surface treatment. Coupling agents such as γ‐aminopropyltriethoxysilane (APTES), di(dioctylpyrophosphato) ethylene titanate (NDZ‐311), and glutaraldehyde (GA) were used as modifiers to improve the hydrophobicity of HGM. Compared with pristine HGM, the modified HGM, especially the particles coupled with APTES‐GA, show better properties on flexural strength, fracture toughness, and dynamic mechanical properties of phenolic syntactic foams. It is revealed that the coupling agent coating layer grafted onto the surface of HGM reduces the polarity of particles, avoiding agglomeration of HGM in phenolic matrix and exhibiting good interfacial interaction between HGM and phenolic matrix. The remarkable improvement of interfacial adhesion between APTES‐GA modified HGM and phenolic matrix is mainly due to the covalent linkage with phenolic resin while the physical entanglement of molecular chains dominates the linkage between other modified HGM and phenolic matrix. APTES‐GA treatment is a more appropriate surface modification method for inorganic particle reinforced phenolic matrix composites. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 44415.

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“…There are also many studies called synthetic foams, in which HGMs are dispersed in polymer matrix . Also authors found the effect of mechanical strength on nanocomposites with clay through their experiment …”

Section: Introductionmentioning

confidence: 99%

The addition effect of hollow glass microsphere on the dispersion behavior and physical properties of polypropylene/clay nanocomposites

Jung

Kang

Cheon

et al. 2018

J of Applied Polymer Sci

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Polypropylene (PP) nanocomposites have been widely researched for last decade due to its high mechanical property and multiple usages in various industrial fields from automobile to consumer packaging. Dispersion of nanoclay in polyethylene and PP is the key factor due to their hydrophobic property. Adding surfactant or introducing a polymer with a functional group, and modifying a natural clay with organic ions have been tried to achieve the better dispersion of clay in polymer matrix. In this study, the PP/clay nanocomposite with maleic anhydride grafted PP and hollow glass microspheres (HGMs) at various compositions were prepared and characterized. The addition of HGMs to PP/clay nanocomposites significantly improved the tensile stress at yield point except 7 wt % of HGMs. It is assumed that this could be due to not only the reinforcing effect of HGMs in PP, but the crushing effect of HGMs on the clay resulting in interlayer increase of clay as well. The barrier properties was also found to be improved about 32% max resulting from the better dispersion and presence of HGMs. It could be assumed that the HGMs could act as a ball creating a ball milling crush force to achieve the better dispersion of clay in the polymer and improve nanocomposite performance. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47476.

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Nanoclay reinforced thermoplastic toughened epoxy hybrid syntactic foam: Surface morphology, mechanical and thermo mechanical properties

Cited by 36 publications

References 28 publications

Enhancing the Fracture Resistance and Impact Toughness of Mechanically Frothed Epoxy Foams with Hollow Elastomeric Microspheres

Enhancing the Fracture Resistance and Impact Toughness of Mechanically Frothed Epoxy Foams with Hollow Elastomeric Microspheres

Surface modification of hollow glass microsphere with different coupling agents for potential applications in phenolic syntactic foams

The addition effect of hollow glass microsphere on the dispersion behavior and physical properties of polypropylene/clay nanocomposites

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