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Intro; Preface; Contents; About the Authors; 1 Introduction; 1.1 Nature-Inspired Biomimetic Self-Healing for Self-sustained Mechanical Properties; 1.2 Self-Healing: Extension to Corrosion Protection; 1.3 Capsule-Based Approach to Self-Healing; 1.3.1 Microcapsules Filled with Healing Agents; 1.3.2 Nanoscale Capsules Filled with Healing Agents; 1.4 Tube and Channel Networks and Microfibers; 1.5 Sacrificial Materials and Shape-Memory Polymers; References; Materials and Fundamental Physicochemical Phenomena; 2 Healing Agents Used for Mechanical Recovery in Nanotextured Systems
2.1 Dicyclopentadiene (DCPD) and Grubbs' Catalyst2.2 Poly(Dimethyl Siloxane) (PDMS); 2.3 Other Elastomers; 2.4 Bisphenol-A-Based Epoxy and Other Types of Epoxy; 2.5 Gels; References; 3 Macroscopic Observations of Physicochemical Aspects of Self-Healing Phenomena; 3.1 Spreading of Released Drops of Healing Agents on Horizontal Surfaces; 3.1.1 Experimental Observations; 3.1.2 Wetting of Self-Healing Agents on Porous Electrospun NFs; 3.1.3 Coalescence of Droplets of Self-Healing Agents on Porous Electrospun NFs
3.1.4 The Hoffman-Voinov-Tanner Law and Droplet Footprint Spreading on Wettable Intact Surfaces and NF Mats3.1.5 Coalescence of Droplets on NF Mats; 3.2 Spreading on Tilted Surfaces; 3.3 Filling of Crack Tips; 3.3.1 Macroscopic View of Epoxy Release and Hardening; 3.3.2 Epoxy-Hardener Reaction Observed in a Macroscopic Crack-Tip-Shaped Mold; 3.4 Stitching Cracks and the Corresponding Mechanical Properties; 3.4.1 Macroscopic Model of Self-Healing Composite Materials with Embedded Microchannel System; 3.4.2 Release and Mixing of Healing Agents
3.4.3 Wettability-Driven Spreading and Polymerization of Healing Agents3.4.4 Recovery of Mechanical Strength; References; Fabrication Methods; 4 Fabrication of Vascular Nanofiber Networks with Encapsulated Self-Healing Agents for Mechanical Recovery; 4.1 Electrospinning; 4.1.1 Charge Relaxation Time in Electrolytes; 4.1.2 Formation of Electrospun Polymer NFs; 4.2 Co-electrospinning; 4.3 Emulsion Spinning; 4.4 Solution Blowing; 4.5 Coaxial Solution Blowing; 4.6 Emulsion Blowing; 4.7 Two- and Three-Dimensional Self-Healing Materials; 4.7.1 Two-Dimensional Planar Self-Healing Composites
4.7.2 Three-Dimensional Self-Healing CompositesReferences; 5 Characterization of Self-Healing Phenomena on Micro- and Nanoscale Level; 5.1 Visualization; 5.2 Spectroscopic Characterization; 5.3 Thermal Analysis; References; Mechanical Behavior of Self-Healing Nanotextured Materials; 6 Failure, Cracks, Fracture, Fatigue, Delamination, Adhesion, and Cohesion; 6.1 Failure Criteria; 6.2 Cracks in Brittle Elastic-Plastic Media; 6.3 Cracks in Viscoelastic Media; 6.4 Fatigue Cracks; 6.5 Critical Catastrophic Crack and Subcritical Crack Propagation; 6.6 Delamination Cracks
2.1 Dicyclopentadiene (DCPD) and Grubbs' Catalyst2.2 Poly(Dimethyl Siloxane) (PDMS); 2.3 Other Elastomers; 2.4 Bisphenol-A-Based Epoxy and Other Types of Epoxy; 2.5 Gels; References; 3 Macroscopic Observations of Physicochemical Aspects of Self-Healing Phenomena; 3.1 Spreading of Released Drops of Healing Agents on Horizontal Surfaces; 3.1.1 Experimental Observations; 3.1.2 Wetting of Self-Healing Agents on Porous Electrospun NFs; 3.1.3 Coalescence of Droplets of Self-Healing Agents on Porous Electrospun NFs
3.1.4 The Hoffman-Voinov-Tanner Law and Droplet Footprint Spreading on Wettable Intact Surfaces and NF Mats3.1.5 Coalescence of Droplets on NF Mats; 3.2 Spreading on Tilted Surfaces; 3.3 Filling of Crack Tips; 3.3.1 Macroscopic View of Epoxy Release and Hardening; 3.3.2 Epoxy-Hardener Reaction Observed in a Macroscopic Crack-Tip-Shaped Mold; 3.4 Stitching Cracks and the Corresponding Mechanical Properties; 3.4.1 Macroscopic Model of Self-Healing Composite Materials with Embedded Microchannel System; 3.4.2 Release and Mixing of Healing Agents
3.4.3 Wettability-Driven Spreading and Polymerization of Healing Agents3.4.4 Recovery of Mechanical Strength; References; Fabrication Methods; 4 Fabrication of Vascular Nanofiber Networks with Encapsulated Self-Healing Agents for Mechanical Recovery; 4.1 Electrospinning; 4.1.1 Charge Relaxation Time in Electrolytes; 4.1.2 Formation of Electrospun Polymer NFs; 4.2 Co-electrospinning; 4.3 Emulsion Spinning; 4.4 Solution Blowing; 4.5 Coaxial Solution Blowing; 4.6 Emulsion Blowing; 4.7 Two- and Three-Dimensional Self-Healing Materials; 4.7.1 Two-Dimensional Planar Self-Healing Composites
4.7.2 Three-Dimensional Self-Healing CompositesReferences; 5 Characterization of Self-Healing Phenomena on Micro- and Nanoscale Level; 5.1 Visualization; 5.2 Spectroscopic Characterization; 5.3 Thermal Analysis; References; Mechanical Behavior of Self-Healing Nanotextured Materials; 6 Failure, Cracks, Fracture, Fatigue, Delamination, Adhesion, and Cohesion; 6.1 Failure Criteria; 6.2 Cracks in Brittle Elastic-Plastic Media; 6.3 Cracks in Viscoelastic Media; 6.4 Fatigue Cracks; 6.5 Critical Catastrophic Crack and Subcritical Crack Propagation; 6.6 Delamination Cracks