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a) Schematic illustrations of 3D printing technology used for CSYs production. b) relationship of storage modulus, loss modulus and viscosity growth of pure PDMS prepolymer and PTFE filled PDMS prepolymer under shear stress c) structure evolution of the PDMS prepolymer filled with PTFE particles under shear stress. Reproduced with permission.[ 59 ] Copyright 2021, Elsevier.
