Heat Management by Colloidal Self‐assembly

Song, Qimeng; Schöttle, Marius; Ruckdeschel, Pia; Nutz, Fabian A.; Retsch, Markus

doi:10.1002/9783527828722.ch14

Cited by 3 publications

(1 citation statement)

References 176 publications

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“…The self-organization of microscale and mesoscale objects at the liquid/liquid or liquid/gas interface has been receiving increased attention in recent years because of the promising properties of the assemblies for applications in different fields of chemistry, physics, and biology. − In fundamental and applied studies, spherical particles with micro- and nanometer sizes have been thoroughly investigated at diverse interfaces. In particular, self-organized close-packed monolayers have been widely applied in areas such as colloidal lithography − or thermofunctional materials …”

Section: Introductionmentioning

confidence: 99%

Effect of Particle Size on the Orientation and Order of Assemblies of Functionalized Microscale Cubes Formed at the Water/Air Interface

et al. 2023

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The impact of the particle size and wettability on the orientation and order of assemblies obtained by self-organization of functionalized microscale polystyrene cubes at the water/air interface is reported. An increase in the hydrophobicity of 10-and 5-μm-sized self-assembled monolayer-functionalized polystyrene cubes, as assessed by independent water contact angle measurements, led to a change of the preferred orientation of the assembled cubes at the water/air interface from face-up to edge-up and further to vertex-up, irrespective of microcube size. This tendency is consistent with our previous studies with 30-μmsized cubes. However, the transitions among these orientations and the capillary force-induced structures, which change from flat plate to tilted linear and further to close-packed hexagonal arrangements, were observed to shift to larger contact angles for smaller cube size. Likewise, the order of the formed aggregates decreased significantly with decreasing cube size, which is tentatively attributed to the small ratio of inertial force to capillary force for smaller cubes in disordered aggregates, which results in more difficulties to reorient in the stirring process. Experiments with small fractions of larger cubes added to the water/air interface increased the order of smaller homo-aggregates to values similar to neat 30 μm cube assemblies. Hence, collisions of larger cubes or aggregates are shown to play a decisive role in breaking metastable structures to approach a global energy minimum assembly.

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Section: Introductionmentioning

confidence: 99%

Effect of Particle Size on the Orientation and Order of Assemblies of Functionalized Microscale Cubes Formed at the Water/Air Interface

et al. 2023

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Relationship between the tensile modulus and the thermal conductivity perpendicular and in the fiber direction of PAN-based carbon fibers

Bard,

Tran,

Schönl

et al. 2023

Carbon Lett.

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A thorough knowledge and understanding of the structure–property relationship between thermal conductivity and C-fiber morphology is important to estimate the behavior of carbon fiber components, especially under thermal loading. In this paper, the thermal conductivities of different carbon fibers with varying tensile modulus were analyzed perpendicular and parallel to the fiber direction. Besides the measurement of carbon fiber reinforced polymers, we also measured the thermal conductivity of single carbon fibers directly. The measurements clearly proved that the thermal conductivity increased with the tensile modulus both in fiber and perpendicular direction. The increase is most pronounced in fiber direction. We ascribed the increase in tensile modules and thermal conductivity to increasing anisotropy resulting from the orientation of graphitic domains and microvoids. Graphical abstract

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Monodisperse oxidative-sensitive polymer nanoparticles from dispersion polymerization of N-acryloyl thiomorpholine

Ziegenbalg

Eberhardt

Städter

et al. 2023

European Polymer Journal

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Heat Management by Colloidal Self‐assembly

Cited by 3 publications

References 176 publications

Effect of Particle Size on the Orientation and Order of Assemblies of Functionalized Microscale Cubes Formed at the Water/Air Interface

Effect of Particle Size on the Orientation and Order of Assemblies of Functionalized Microscale Cubes Formed at the Water/Air Interface

Relationship between the tensile modulus and the thermal conductivity perpendicular and in the fiber direction of PAN-based carbon fibers

Monodisperse oxidative-sensitive polymer nanoparticles from dispersion polymerization of N-acryloyl thiomorpholine

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