Page 22 - Handbook of Adhesives and Sealants

Contents ix

6.6 Specific surface treatments 246
6.6.1 Metallic adherends 246
6.6.2 Plastic adherends 246
6.6.3 Polymeric composite adherends 247
6.6.4 Elastomeric adherends 249
6.6.5 Other adherends 250

Chapter 7. Primers and Adhesion Promoters 253
7.1 Introduction 253
7.2 Primers 255
7.2.1 Application and use 256
7.2.2 Primers for metal substrates 259
7.2.3 Primers for polymeric substrates 263
7.2.4 Primers for unvulcanized elastomers 264
7.3 Adhesion promoters 266
7.3.1 Silane adhesion promoters 267
7.3.2 Titanates, zirconates, and others 273

Chapter 8. Adhesive Classification 279
8.1 Introduction 279
8.2 Basic classification 279
8.2.1 Function 280
8.2.2 Chemical composition 281
8.2.2.1 Thermosetting adhesives 281
8.2.2.2 Thermoplastic adhesives 284
8.2.2.3 Elastomeric adhesives 285
8.2.2.4 Hybrid adhesives 285
8.2.3 Method of reaction 286
8.2.3.1 Chemical reaction 289
8.2.3.1.1 Multiple part adhesive systems 291
8.2.3.1.2 Single component systems that cure
via catalyst or hardener 294
8.2.3.1.3 Moisture curing adhesives 295
8.2.3.1.4 UV/light curing adhesives 296
8.2.3.1.5 Adhesives catalyzed by the substrate 297
8.2.3.1.6 Adhesives in solid form (tape, film,
powder) 299
8.2.3.2 Solvent or water loss 300
8.2.3.2.1 Contact adhesives 301
8.2.3.2.2 Pressure sensitive adhesives 301
8.2.3.2.3 Reactivatable adhesives 305
8.2.3.3 Resinous solvent adhesives 306
8.2.3.4 Hardening from the melt 306
8.2.4 Physical form 307
8.2.4.1 Pastes and liquids 310
8.2.4.1.1 Two-part solventless 310
8.2.4.1.2 One-part solventless 312
8.2.4.2 Solvent-based adhesives 312
8.2.4.3 Water-based adhesives 313
8.2.4.4 Solid forms 314
8.2.4.4.1 Tape and film 314
8.2.4.4.2 Powdered adhesives 314
8.2.4.4.3 Hot melt forms 315