Mechanics of CNT Network Materials

Kırca, Mesut; To, Albert C.

doi:10.1002/9781119068921.ch2

Cited by 1 publication

(1 citation statement)

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“…One-dimensional (1D) nanoscale particulates (NPs) such as nanorods, nanofibers, and nanotubes have been widely used for medicine [1], electronics [2,3], and photonic applications [4,5]. NPs are combined with matrix in a controlled dimension and percentage to improve various properties, such as mechanical, electrical, and thermal properties, thus there is also growing interest in nanocomposites [6][7][8][9][10][11]. These improvements are directly related with the material, dimensions, and orientation distribution of fibers.…”

Section: Introductionmentioning

confidence: 99%

Shear induced alignment of short nanofibers in 3D printed polymer composites

et al. 2016

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Abstract3D printing of composite materials offers an opportunity to combine desired properties of composite materials with flexibility of additive manufacturing in geometric shape and complexity. In this paper, shear-induced alignment of aluminum oxide nanowires during stereolithography printing was utilized to fabricate a nanowire reinforced polymer composite. To align the fibers, a lateral oscillation mechanism was implemented and combined with wall pattern printing technique to generate shear flow in both vertical and horizontal directions. A series of specimens were fabricated for testing the composite material's tensile strength. The results showed that mechanical properties of the composite were improved by reinforcement of nanofibers through shear induced alignment. The improvement of tensile strength was approximately ~28% by aligning the nanowires at 5wt% (~1.5% volume fraction) loading of aluminum oxide nanowires.

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