Publications

Updated on 8/19/2019

Sustainable Nanotextured Wave Energy Harvester

Authors

Seongpil An, Hong Seok Jo, Gen Li, Edmund Samuel, Sam S. Yoon, Alexander L. Yarin

Abstract
Here, ultrathin, flexible, and sustainable nanofiber‐based piezoelectric nanogenerators (NF‐PENGs) are fabricated and applied as wave energy harvesters. The NF‐PENGs are composed of poly(vinylidene fluoride‐co‐trifluoroethylene) (P(VDF‐TrFE)) nanofibers with embedded barium strontium titanate (BaSrTiO3) nanoparticles, which are fabricated by using facile, scalable, and cost‐effective fiber‐forming methods, including electrospinning and solution blowing. The inclusion of ferroelectric BaSrTiO3 nanoparticles inside the electrospun P(VDF‐TrFE) nanofibers enhances the sustainability of the NF‐PENGs and results in unique flexoelectricity‐enhanced piezoelectric nanofibers. Not only do these NF‐PENGs yield a superior performance compared to the previously reported NF‐PENGs, but they also exhibit an outstanding durability in terms of mechanical properties and cyclability. Furthermore, a new theoretical estimate of the energy harvesting efficiency from the water waves is introduced here, which can also be employed in future studies associated with various nanogenerators, including PENGs and triboelectric nanogenerators.

 

 

Advanced Functional Materials, 2001150 (2020).

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Direct ink writing of surface-modified flax elastomer composites

Authors

Yizhou Jiang, Jevon Plog, Alexander L.Yarin, Yayue Pan

Keywords
Flax; Direct ink writing; Surface modification; Natural fiber; Sonication

 

 

Composites Part B: Engineering, 194, 108061 (2020)

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Mutual sliding motion of wrapped filaments

Authors

Gen Li, Behnam Pourdeyhimi, Alexander L. Yarin

Keywords
Wrapped filaments; Friction; Modeling

 

 

Langmuir, 36, 4357−4369 (2020)

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Eruptive jetting from stems and leaves during forest fire

Authors

Wenshuo Zhang, Eyal Zussman, Alexander L. Yarin

Keywords
Heat and mass transfer in forest fire; Stems and leaves; Eruptive jets of volatiles and water vapor

 

 

Experimental Thermal and Fluid Science, 116, 110112 (2020)

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Modeling Polymer Crystallization Kinetics in the Meltblowing

Authors

Arkaprovo Ghosal, Kailin Chen, Suman Sinha-Ray, Alexander L.Yarin, Behnam Pourdeyhimi

Keywords
Crystals; Crystallinity; Crystallization;Polymers; Meltblowing

 

 

Industrial & Engineering Chemistry Research, 59, 399−412 (2020)

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Modeling of spunbond formation process of polymer nonwovens

Authors

Kailin Chen, Arkaprovo Ghosal, Alexander L.Yarin, Behnam Pourdeyhimi

Keywords
Spunbond; Polymer nonwoven; Modeling; Polymer processing; Numerical simulation

 

 

Polymer, 187, 121902 (2020)

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Constitutive modeling of polymers

Authors

Alexander L.Yarin, Abhilash Sankaran, Seongpil An, Behnam Pourdeyhimi

Keywords
Non-linear hyperelastic Yeoh model; viscoelastic-plastic rheological constitutive equation; Creep

 

Polymer Testing, 85, 106444 (2020)

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