| Acknowledgments | 第4-5页 |
| Abstract | 第5页 |
| List of abbreviations | 第9-16页 |
| INTRODUCTION | 第16-17页 |
| Chapter 1 Literature Review | 第17-39页 |
| 1. Environment of the problem and state of the art | 第17-30页 |
| 1.1. Definition of the problem | 第17-19页 |
| 1.1.1. Need for light weight and recyclable materials | 第17-18页 |
| 1.1.2. Main challenges | 第18-19页 |
| 1.2. Thermoplastic composites | 第19-25页 |
| 1.2.1. Thermoplastics, elastomers and thermosets | 第19页 |
| 1.2.2. Advantages of Thermoplastics | 第19-20页 |
| 1.2.3. Thermoplastic towpregs and prepregs | 第20-25页 |
| 1.3. Carbon fiber and its surface | 第25-27页 |
| 1.3.1. Making of carbon fiber and applications | 第25-26页 |
| 1.3.2. Surfaces of carbon fibers | 第26-27页 |
| 1.4. Sizing of carbon fiber and interphase with composite materials | 第27-30页 |
| 1.4.1. The utility of sizing | 第27页 |
| 1.4.2. Different types of sizing | 第27页 |
| 1.4.3. Recent progress in sizing and surface modification for CF reinforced thermoplastic composites | 第27-28页 |
| 1.4.4. Nanomaterials | 第28页 |
| 1.4.5. Graphene oxide | 第28-29页 |
| 1.4.6. Use of polydopamine | 第29页 |
| 1.4.7. Use of nanomaterials alone and in coatings to modify the surface of carbon fibers | 第29-30页 |
| 1.5. Conclusions | 第30页 |
| References | 第30-39页 |
| Chapter 2 Study and improvement of a Towpreg | 第39-54页 |
| 2. Study of a type of towpreg and different types of polymeric based sizing for their composites | 第39-51页 |
| 2.1. Objectives of the study | 第40-41页 |
| 2.2. Materials and methods used | 第41-43页 |
| 2.3. Results and discussion | 第43-51页 |
| 2.4. Conclusions | 第51页 |
| References | 第51-54页 |
| Chapter 3 Study of graphene oxide in sizing | 第54-74页 |
| 3. Use of graphene oxide in polymeric sizing for the improvement at the interphase of carbon fiber reinforced thermoplastic composites | 第54-71页 |
| 3.1. Objectives of the Study | 第55-56页 |
| 3.2. Materials and methods used | 第56-70页 |
| 3.2.1. Materials | 第56-57页 |
| 3.2.2. Making of GO with different DOs and making of the GOFe3O4 | 第57-58页 |
| 3.2.3. Sizing of the tows | 第58页 |
| 3.2.4. Making of the laminates | 第58-59页 |
| 3.2.5. Characterization | 第59-60页 |
| 3.2.6. GO with different DOs and grafting of the ferrites on the different GOs | 第60-63页 |
| 3.2.7. Effect of the DO on the emulsions and Thermal stability of TP sizing films | 第63-65页 |
| 3.2.8. Effect of the DO and induced magnetic field on the quality of the sizing | 第65-68页 |
| 3.2.9. Effect of the DO and induced magnetic field on the final mechanical properties | 第68-70页 |
| 3.3. Conclusions | 第70-71页 |
| References | 第71-74页 |
| Chapter 4 Study of the frictional properties | 第74-93页 |
| 4. Study of the effect of the sizing on the frictional properties | 第74-90页 |
| 4.1. Objectives of the study | 第74-76页 |
| 4.2. Materials and methods | 第76-82页 |
| 4.2.1. Materials | 第76-77页 |
| 4.2.2. Methods used | 第77页 |
| 4.2.3. Capstan Friction apparatus | 第77-79页 |
| 4.2.4. Custom Lab-Scale sizing apparatus | 第79-80页 |
| 4.2.5. Sizing bath and parameters | 第80页 |
| 4.2.6. Measurement of the friction | 第80-81页 |
| 4.2.7. Characterization methods | 第81-82页 |
| 4.3. Results and discussion | 第82-89页 |
| 4.4. Conclusions | 第89-90页 |
| Acknowledgments and additional information | 第90页 |
| References | 第90-93页 |
| Chapter 5 Functionalization of GO with polydopamine | 第93-119页 |
| 5. Further functionalization using polydopamine coated GO for use in the sizing | 第93-103页 |
| 5.1. Objectives of the study | 第93-94页 |
| 5.2. Experimental details | 第94-97页 |
| 5.2.1. Materials | 第94页 |
| 5.2.2. Coating of the polydopamine on the GO nanoparticles | 第94-95页 |
| 5.2.3. Sizing of the tows | 第95页 |
| 5.2.4. Making of the laminates | 第95-96页 |
| 5.2.5. Characterization | 第96-97页 |
| 5.3. Results and discussion | 第97-102页 |
| 5.3.1. Coating of the GO with the polydopamine | 第97-99页 |
| 5.3.2. Effect of the Thermal stability of the sizing films | 第99-100页 |
| 5.3.3. Effect of the GOPdpa on the quality of the sizing | 第100-101页 |
| 5.3.4. Effect of the GOPdpa on the storage modulus and loss modulus of laminates | 第101-102页 |
| 5.3.5. Effect of the GOPdpa and AS+GOPdpa on the Fiber/Matrix interphase | 第102页 |
| 5.4. Conclusions | 第102-103页 |
| References | 第103-119页 |
| Chapter 6 Summary and future recommendations | 第119页 |
| 6. Summary and future recommendations | 第119页 |
| 6.1. Summary | 第119页 |
| 6.2. Recommendations | 第119页 |
