Introduction | p. 1 |
Introduction and Chapter Objectives | p. 1 |
Basic Definitions | p. 1 |
Advantages and Disadvantages of Adhesive Bonding | p. 2 |
Uses of Adhesive Bonding in Modern Industry | p. 5 |
Economics of Adhesive Technology | p. 11 |
Literature and Other Sources of Information | p. 12 |
Summary | p. 14 |
References | p. 14 |
The Mechanical Properties of Materials as They Relate to Adhesion | p. 15 |
Introduction | p. 15 |
Definition of Mechanical Stresses for Materials Testing | p. 15 |
Stress-Strain Plots and the Definition of Materials Property Parameters | p. 17 |
Tensile Forces | p. 17 |
Shear Forces | p. 20 |
Strain Energy Density | p. 20 |
Introduction to Linear Elastic Fracture Mechanics | p. 21 |
Introduction to Rheology of Liquids | p. 24 |
Introduction to Linear Viscoelasticity | p. 26 |
An Application of Materials Properties and Mechanics: The Bending of Beams | p. 31 |
Summary | p. 39 |
Bibliography | p. 39 |
Problems and Review Questions | p. 39 |
Mechanical Tests of Adhesive Bond Performance | p. 43 |
Introduction | p. 43 |
Failure Modes and the Definition of Practical Adhesion | p. 43 |
Tensile Testing of Adhesive Bonds | p. 44 |
Shear Loading of Adhesive Bonds | p. 48 |
The Standard Lap Shear Specimen | p. 48 |
Variations on the Lap Shear Specimen | p. 53 |
Specimen for Determining the True Shear Properties of an Adhesive | p. 55 |
The Goland--Reissner Analysis of the Lap Shear Specimen | p. 56 |
Cleavage Loading of Adhesive Bonds | p. 63 |
Cleavage or Fracture Specimens | p. 63 |
Double Cantilever Beam Specimens | p. 65 |
Linear Elastic Fracture Mechanics Applied to the Double Cantilever Beam Specimen | p. 66 |
Blister Test | p. 68 |
Compact Tension Test | p. 68 |
Wedge Test | p. 69 |
Peel Tests | p. 70 |
Stress Analysis in a Peel Specimen | p. 73 |
Summary | p. 76 |
Bibliography | p. 76 |
References | p. 76 |
Problems and Review Questions | p. 77 |
The Basics of Intermolecular Forces and Surface Science | p. 78 |
Introduction | p. 78 |
Fundamental Forces | p. 78 |
Electrostatic Forces | p. 80 |
van der Waals Interactions | p. 81 |
Dipole--Dipole Interactions | p. 81 |
Dipole-Induced Dipole | p. 83 |
Dispersion Forces | p. 83 |
Interactions through Electron Pair Sharing | p. 85 |
Repulsive Forces | p. 86 |
Surface Forces and Surface Energy | p. 86 |
Work of Cohesion and Adhesion | p. 90 |
Methods of Measurement of Surface Energy and Related Parameters | p. 92 |
Surface Tension | p. 92 |
Drop Weight/Volume Method | p. 93 |
du Nuoy Tensiometer | p. 93 |
Surface Energy of Solids | p. 94 |
Contact Angle Methods | p. 94 |
Contact Mechanics and Direct Measurement of Solid Surface Energy | p. 96 |
Surface Thermodynamics and Predictions of Surface and Interfacial Tensions | p. 102 |
The Good--Girifalco Relationship | p. 104 |
The Fowkes Hypothesis and Fractional Polarity | p. 105 |
The Zisman Plot | p. 107 |
Modern Application of Contact Angle Measurements | p. 108 |
Modern Methods of Surface Analysis | p. 109 |
Modern Methods for the Analysis of the Chemistry of Surfaces | p. 112 |
Topological Methods of Surface Analysis | p. 112 |
Summary | p. 114 |
Bibliography | p. 114 |
References | p. 114 |
Problems and Review Questions | p. 116 |
Basic Physico/Chemical Properties of Polymers | p. 118 |
Introduction | p. 118 |
Basic Terminology | p. 118 |
Monomers versus Polymers | p. 118 |
Basic Types of Polymeric Materials | p. 119 |
Molecular Weight | p. 120 |
Thermal Transitions of Polymers | p. 122 |
Measurement of T[subscript g] | p. 123 |
Dynamic Mechanical Measurements and Viscoelasticity | p. 124 |
Methods of Measurement of Dynamic Mechanical Properties | p. 124 |
Examples of Dynamic Mechanical Data for Polymers | p. 126 |
Time-Temperature Superposition | p. 129 |
Summary | p. 131 |
Bibliography | p. 131 |
References | p. 131 |
The Relationship of Surface Science and Adhesion Science | p. 132 |
Introduction | p. 132 |
Rationalizations of Adhesion Phenomena | p. 132 |
Electrostatic Theory of Adhesion | p. 133 |
Diffusion Theory of Adhesion | p. 135 |
Diffusive Adhesive Bonding and Block Copolymers at Interfaces | p. 138 |
Mechanical Interlocking and Adhesion | p. 141 |
Kinetics of Pore Penetration | p. 144 |
Wettability and Adhesion | p. 145 |
Acid-Base Interactions at Interfaces | p. 144 |
Covalent Bonding at Interfaces | p. 151 |
Coupling Agents | p. 153 |
The Relationship of Fundamental Forces of Adhesion and Practical Adhesion | p. 155 |
The Weak Boundary Layer | p. 159 |
Summary | p. 160 |
Bibliography | p. 161 |
References | p. 161 |
Problems and Review Questions | p. 162 |
The Surface Preparation of Adherends for Adhesive Bonding | p. 164 |
Introduction | p. 164 |
Plastic Surface Preparation | p. 166 |
Corona Discharge Treatment | p. 166 |
Corona Discharge Treatment of Polyethylene | p. 168 |
Corona Discharge Treatment of Polypropylene | p. 171 |
Corona Discharge Treatment of Poly(ethylene terephthalate) | p. 171 |
Corona Discharge Treatment of Other Materials | p. 173 |
Flame Treatment | p. 174 |
Plasma Treatment | p. 176 |
Plasma Treatment of PE | p. 177 |
Plasma Treatment of Other Substrates | p. 180 |
Other Physical Treatment Methods of Polymer Surfaces | p. 180 |
Treatments Using Ultraviolet Radiation | p. 180 |
Other Vacuum Methods of Surface Preparation | p. 181 |
Wet Chemical Methods of Treatment of Polymer Surfaces | p. 181 |
Single Surface Chemical Functionalization and Chromic Acid Treatment of PE | p. 182 |
Wet Chemical Surface Treatment of Poly(tetrafluoroethylene) | p. 183 |
Priming of Polymer Surfaces | p. 184 |
Priming of Polyolefins for Cyanoacrylates | p. 184 |
Chlorinated Polyolefins | p. 184 |
Metal Surface Preparation | p. 185 |
Surface Preparation of Aluminum for Adhesive Bonding | p. 186 |
The Forest Products Laboratory (FPL) Etch | p. 186 |
Anodization Treatments for Adhesive Bonding of Aluminum | p. 190 |
Mechanism of Anodization | p. 191 |
Anodization Media | p. 191 |
Phosphoric Acid Anodization in the Aerospace Industry | p. 193 |
General Techniques for the Surface Preparation of Metals | p. 194 |
Conversion Coatings | p. 194 |
Abrasion | p. 195 |
Electrochemical Methods for Treating Metals other than Aluminum | p. 196 |
Summary | p. 197 |
Bibliography | p. 197 |
References | p. 197 |
Problems and Review Questions | p. 199 |
The Chemistry and Physical Properties of Structural Adhesives | p. 201 |
Introduction to Chapters 8-10 | p. 201 |
Introduction to Structural Adhesives | p. 201 |
Physical Forms of Uncured Structural Adhesives | p. 202 |
Chemistry of Base Resins Used in Structural Adhesives | p. 204 |
Phenolics | p. 204 |
Proteins | p. 206 |
Epoxy Resins | p. 207 |
Time-Temperature-Transformation Diagrams and the Cure of Epoxy Resins | p. 211 |
Urethane Resins | p. 213 |
Acrylics | p. 215 |
High Temperature Performance Structural Adhesives | p. 217 |
Formulation of Structural Adhesives for Optimum Performance | p. 220 |
Formulation of Phenolic Resins | p. 221 |
Epoxy Resins | p. 223 |
Acrylics | p. 230 |
High Temperature Performance Structural Adhesives | p. 232 |
Summary | p. 234 |
Bibliography | p. 234 |
References | p. 234 |
Problems and Review Questions | p. 236 |
The Chemistry and Physical Properties of Elastomer-Based Adhesives | p. 238 |
Introduction | p. 238 |
Pressure-Sensitive Adhesives | p. 238 |
Chemistry of the Base Resins Used in PSAs | p. 239 |
Chemistry of Tackifiers | p. 242 |
Natural Product Based Tackifiers | p. 242 |
Petroleum-Based Tackifiers | p. 243 |
Other Tackifiers | p. 245 |
Testing of Pressure-Sensitive Adhesives | p. 246 |
Measurements of Tack | p. 246 |
Measurement of Peel | p. 248 |
Measurement of Shear | p. 249 |
Balance of Properties | p. 250 |
PSA Performance Viewed as a Time Scale in Viscoelastic Response | p. 251 |
PSA Viscoelasticity and Tack | p. 251 |
PSA Peel and Viscoelasticity | p. 255 |
Shear and Creep Behavior of PSAs | p. 257 |
Summary | p. 259 |
Rubber-Based, Contact Bond and Other Elastomeric Adhesives | p. 259 |
Formulation of RBAs | p. 260 |
Base Polymers | p. 260 |
Tackifiers | p. 262 |
Pigments and Fillers | p. 262 |
Crossliking/Vulcanization of RBAs | p. 263 |
Solvents | p. 264 |
Elastomeric Adhesives, Sealants, and Realease Coatings Based upon Silicone Chemistry | p. 265 |
Summary | p. 266 |
Bibliography | p. 268 |
References | p. 268 |
Problems and Review Questions | p. 268 |
Thermoplastic, Pseudothermoplastic, and Other Adhesives | p. 270 |
Introduction | p. 270 |
Hot Melt Adhesives | p. 270 |
Introduction | p. 270 |
Polymer Physical Properties and Hot Melt Adhesives | p. 271 |
Formulation of Hot Melt Adhesives | p. 273 |
Synthetically Designed Hot Melt Adhesives | p. 277 |
Curing Hot Melts | p. 280 |
Polyvinyl Acetate-Based Adhesives | p. 282 |
Polyvinyl Acetal Adhesives | p. 282 |
Thermoplastic or Pseudo-Thermoplastic Adhesives Based upon Natural Products | p. 283 |
Starches | p. 283 |
Cellulosics | p. 284 |
Summary | p. 285 |
Bibliography | p. 285 |
References | p. 285 |
The Basis for Adhesive Bond Design | p. 286 |
Introduction | p. 286 |
Chemistry and Mechanical Properties of Adhesives | p. 286 |
Application Criteria | p. 289 |
Interfaces and Surface Preparations | p. 292 |
Miscellaneous Concerns | p. 293 |
Basic Criteria for the Design of an Adhesive Bond | p. 294 |
Hart-Smith Design Criteria for Double Lap Joints | p. 296 |
Summary | p. 299 |
References | p. 299 |
Problems and Review Questions | p. 300 |
Answer Key | p. 301 |
Index | p. 313 |
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