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Marsh, Bruce D.

doi:10.1007/s00410-015-1110-2

Cited by 8 publications

(4 citation statements)

References 36 publications

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“…The degree of crystallinity X c estimated to be 35.8% for neat PLA (3052D), nevertheless, it decreased significantly to 5.2%, 8.6%, 12.4% for PLA/2% CNT, PLA/8% CNT, and PLA/1% graphene, respectively. This reduction of X c could be correlated with the reduction of viscosity described in the previous section . And the reason for this reduction could be twofold.…”

Section: Resultsmentioning

confidence: 99%

Incorporation of graphitic nano‐filler and poly(lactic acid) in fused deposition modeling

Wang

Zhang

et al. 2017

J of Applied Polymer Sci

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This article presents research results showing that the property of fused deposition modeling (FDM) products is obtained jointly by careful control of processing parameters, structure of products, and the composition of material. In this manuscript, poly(lactic acid) (PLA) was incorporated with graphene or carbon nanotube (CNT) through repeated melt blending. Filament of the PLA/graphitic nano‐filler was prepared and used in FDM. Rheological and thermal analysis were conducted to assess the suitability of the composite as FDM feedstock, and mechanical and electrical property were tested subsequently. Research results demonstrate that filament diameter‐regarded as processing‐related parameter‐was positively correlated with mechanical stiffness and strength of FDM products. Tensile elongation at break of FDM products exhibited significant increase at a raster angle of 45° compared with the filament before FDM, showing in certain cases, material property depends more on the structure than the composition. And when incorporated with graphene or CNT, the electrical conductivity of the PLA‐based composite increased drastically. The electrical conductivity of the best experiment sample reached ∼10−1 S m−1, demonstrating that composition is the key to functionalizing material. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 44703.

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Section: Resultsmentioning

confidence: 99%

Incorporation of graphitic nano‐filler and poly(lactic acid) in fused deposition modeling

Wang

Zhang

et al. 2017

J of Applied Polymer Sci

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“…from the definition of the gamma function. The parameter α is given by α = 7N 2u 0 L 2 ∼ 0.0393 (9) for N = 180, u 0 = 0.1, and L = 400. Figure 4(a) shows the distribution of Eq.…”

Section: Voronoi Tessellation and A Mean-field Model Of Polynuclmentioning

confidence: 99%

“…Randolph and Larson discussed stationary CSDs in the research field of chemical engineering [8]. Marsh applied the CSD theory in geology and found an exponential size distribution of mineral crystals deposited from magma [9]. In their model, the exponential distribution is derived by the balance of the outflow, the inflow, and the growth of crystals.…”

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confidence: 99%

Numerical Study of Crystal Size Distribution in Polynuclear Growth

Sakaguchi

Ohishi

2015

J. Phys. Soc. Jpn.

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The crystal size distribution in polynuclear growth is numerically studied using a coupled map lattice model. The width of the size distribution depends on c/D, where c is the growth rate at interface sites and $D$ is the diffusion constant. When c/D is sufficiently small, the width W increases linearly with c/D and saturates at large c/D. Monodisperse square and cubic crystals are obtained respectively on square and cubic lattices when c/D is sufficiently small for a small kinetic parameter b. The linear dependence of W on c/D in a parameter range of small c/D is explained by the eigenfunction for the first eigenvalue in a two-dimensional model and a mean-field model. For the mean-field model, the slope of the linear dependence is evaluated theoretically.Comment: 8 pages, 5 figure

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“…The product of L‐alanine with high quality is usually obtained from solution crystallization. As we know, during crystallization, the quality of crystalline product is affected by its morphology, particle size distribution and purity, etc . Morphology, among these factors, is much more crucial, since it shows substantial impacts on downstream processing (such as filtering and washing) and determines product performance (such as the bioavailability of pharmaceuticals) .…”

Section: Introductionmentioning

confidence: 99%

Understanding supersaturation‐dependent crystal growth of L‐alanine in aqueous solution

Tan

Yang²,

Duan

et al. 2015

Crystal Research and Technology

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The dependence of crystal growth rate of L-alanine on solution supersaturation was investigated by combining experiments and molecular dynamics (MD) simulations. The experimental results show that lower supersaturated solution yields more elongated L-alanine crystals along the caxis, i.e., the aspect ratio (c/b) of the crystal decreases with the increase of solution supersaturation, which is due to the higher supersaturation inducing a rise in the relative growth rate between the main side surface (the (120) surface) and the main end surface (the (011) surface). MD simulations on the two surfaces in contact with different supersaturated solutions revealed that the solute molecules tend to be more efficiently attached to the (011) surface than to the (120) surface at both supersaturations studied, as the interaction between the solute molecules and the L-alanine molecules in the first layer of the (011) surface is stronger than that of the (120) surface. However, higher supersaturation leads to larger relative interaction energy between the (120) and (011) surfaces, suggesting an increase in the relative growth rate of the two surfaces (R (120) /R (011) ) with supersaturation, which is in agreement with the experimental results.

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Cited by 8 publications

References 36 publications

Incorporation of graphitic nano‐filler and poly(lactic acid) in fused deposition modeling

Incorporation of graphitic nano‐filler and poly(lactic acid) in fused deposition modeling

Numerical Study of Crystal Size Distribution in Polynuclear Growth

Understanding supersaturation‐dependent crystal growth of L‐alanine in aqueous solution

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