Mechanical and interfacial evaluation of CNT/polypropylene composites and monitoring of damage using electrical resistance measurements

Wang, Zuo-Jia; Kwon, Dong-Jun; Gu, Ga-Young; Kim, Hak‐Soo; Kim, Daesik; Lee, Choon-Soo; DeVries, K. Lawrence; Park, Joung-Man

doi:10.1016/j.compscitech.2013.04.001

Cited by 78 publications

(37 citation statements)

References 28 publications

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“…In fact, rod bridging provided by CNTs can contribute to control the spacing between crack fronts, thus promoting the triggering of self-healing phenomena. Moreover, it should be pointed out that even if the higher viscosities of blends containing CNTs can cause a detrimental influence on healing by delaying the flow phase which leads to wetting, this negative effect can be offset by the aptitude of nano-particles to alter the morphology of crack interfaces [50][51][52][53]. More fractal surfaces generated by the presence of CNTs in the matrix can promote interfacial interactions which represent the driving force of the wetting phase of the healing process.…”

Section: Healing Testsmentioning

confidence: 96%

Fatigue and healing properties of nano-reinforced bituminous binders

Santagata

Baglieri

Tsantilis

et al. 2015

International Journal of Fatigue

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Section: Healing Testsmentioning

confidence: 96%

Fatigue and healing properties of nano-reinforced bituminous binders

Santagata

Baglieri

Tsantilis

et al. 2015

International Journal of Fatigue

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“…Journal of Nanomaterials (IFSS) was reported for the first and the second method, respectively. The same tendency, using different constitutive materials, mixing techniques, and measurement tests, can be found in other reports; for example, Chandrasekaran et al [7] reported an increase of 36% on the IFSS, Godara et al of 36% [12], Sager et al of 71% [13], Lv et al of 175% [14], Yang et al of 190% [15], Li et al of 40% [16], and Wang et al of 71% [17]. Romanov et al [18][19][20] used modeling to explain the effect of CNTs in the fiber/matrix interface, showing that the CNTs suppress the stress concentrations on the microlevel of the composite and therefore the IFSS improvement; nevertheless, experimental evidence is not easy to obtain.…”

Section: Introductionmentioning

confidence: 54%

Multiscale Characterization of Nanoengineered Fiber-Reinforced Composites: Effect of Carbon Nanotubes on the Out-of-Plane Mechanical Behavior

Medina

Fernández

Salas

et al. 2017

Journal of Nanomaterials

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The mechanical properties of the matrix and the fiber/matrix interface have a relevant influence over the mechanical properties of a composite. In this work, a glass fiber-reinforced composite is manufactured using a carbon nanotubes (CNTs) doped epoxy matrix. The influence of the CNTs on the material mechanical behavior is evaluated on the resin, on the fiber/matrix interface, and on the composite. On resin, the incorporation of CNTs increased the hardness by 6% and decreased the fracture toughness by 17%. On the fiber/matrix interface, the interfacial shear strength (IFSS) increased by 22% for the nanoengineered composite (nFRC). The influence of the CNTs on the composite behavior was evaluated by through-thickness compression, short beam flexural, and intraply fracture tests. The compressive strength increased by 6% for the nFRC, attributed to the rise of the matrix hardness and the fiber/matrix IFSS. In contrast, the interlaminar shear strength (ILSS) obtained from the short beam tests was reduced by 8% for the nFRC; this is attributed to the detriment of the matrix fracture toughness. The intraply fracture test showed no significant influence of the CNTs on the fracture energy; however, the failure mode changed from brittle to ductile in the presence of the CNTs.

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“…Cold shortness in materials is appearance or substantial increase of brittleness when lowering the temperature. Several studies were recently focused on the improvement of PP ductility performance [3][4][5][6][7][8][9]. The b-form of PP is in the thermodynamic metastable state, but should form under unique conditions, such as large temperature gradient [10], intense shear stress [11], and in the presence of a nucleating agent [12].…”

Section: Introductionmentioning

confidence: 99%