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(a) The formation of an individual network. Fiber branching can be caused by high surface supersaturation (supersaturation-driven CMB) on the fiber tips or by the adsorption of additives (additive-induced CMB). (b) Architecture of the fiber network. By controlling the fiber branching, the fiber network structure can be finely tuned and materials with the desired macroscopic properties can be created.
SEM images of the GP-1/ISA gel fiber network structure: (a) without surfactant and (b) with 0.00022 wt % Tween 80.
Effect of surfactant concentration on the correlation length of GP-1/ISA gel fiber network.
Effect of surfactant concentration on the viscoelasticity of GP-1/ISA gel.
Illustration of surfactant-induced fiber branching. (a) The formation of elongated fibers due to a perfect structure match in the absence of surfactant. (b) The adsorption of surfactant causes mismatch nucleation and fiber branching.
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