3D-printing History of engineering & technology PP/TiO2 nanocomposites Poincaré section additive manufacturing birefringence breakdown cellulose insulation pressboard chaotic manifold composite laminates conversion crystal morphology cylindrites design optimization epoxy extrusion film stretching finite-time Lyapunov exponents (FTLE) flow-induced crystallization four-screw extruder fused filament fabrication highly-filled polymers hydrophobicity injection molding kriging surrogate model laser-assisted thermal imprinting magnetron sputtering material extrusion metals and ceramics microfeature