لایب سان

1. Survey of Natural Fibre Composites ..................................................................................................... 3 2. Cellulose Based Fibres............................................................................................................................. 4 2.1 Description of Fibres ...................................................................................................................... 4 2.1.1 Natural Fibres ..................................................................................................................... 4 2.1.2 Wood Fibres........................................................................................................................ 7 2.1.3 Man-Made Cellulosic Fibres .............................................................................................. 9 2.1.4 Nanofibres .......................................................................................................................... 9 2.2 Structure and Chemical Constituents of Fibres .............................................................................. 9 2.2.1 Cellulose ............................................................................................................................. 9 2.2.2 Lignin ............................................................................................................................... 12 2.2.3 Further Components ......................................................................................................... 12 2.3 Characteristics ............................................................................................................................... 12 2.3.1 Mechanical ....................................................................................................................... 12 2.3.2 Physical............................................................................................................................. 12 2.3.3 Chemical ........................................................................................................................... 15 3. Methods of Surface Treatment of Natural and Wood Fibres............................................................ 15 3.1 Physical Methods .......................................................................................................................... 15 3.1.1 Corona Treatment ............................................................................................................. 15 3.1.2 Cold Plasma Treatment .................................................................................................... 15 3.2 Chemical Methods ........................................................................................................................ 15 3.2.1 Change of Surface Tension............................................................................................... 16 3.2.2 Impregnation of Fibres ..................................................................................................... 16 3.2.3 Mercerisation .................................................................................................................... 16 3.2.4 Chemical Coupling ........................................................................................................... 18 4. Processing of Natural Fibre Reinforced Plastics ................................................................................ 19 4.1 Thermoplastics .............................................................................................................................. 19 4.1.1 Extrusion........................................................................................................................... 19 4.1.2 Injection Moulding ........................................................................................................... 20 4.1.3 Compression Moulding .................................................................................................... 20 4.1.4 Express Process ................................................................................................................ 20 4.1.5 Mixing .............................................................................................................................. 21 4.2 Thermosets .................................................................................................................................... 21 4.2.1 Resin Transfer Moulding (RTM)...................................................................................... 21 4.2.2 Sheet Moulding Compound (SMC) ................................................................................. 22 5. Properties of Natural and Wood Fibre Composites ........................................................................... 22 5.1 Mechanical Properties .................................................................................................................. 22 5.1.1 Tensile Properties ............................................................................................................. 22 5.1.2 Flexural Properties ........................................................................................................... 23 5.1.3 Impact Properties .............................................................................................................. 23 5.2 Physical Properties........................................................................................................................ 24 5.2.1 Water Absorption .............................................................................................................. 24 5.2.2 Swelling ............................................................................................................................ 25 5.2.3 Moisture Content .............................................................................................................. 26 Natural and Wood Fibre Reinforcement in Polymers 2 The views and opinions expressed by authors in Rapra Review Reports do not necessarily reflect those of Rapra Technology Limited or the editor. The series is published on the basis that no responsibility or liability of any nature shall attach to Rapra Technology Limited arising out of or in connection with any utilisation in any form of any material contained therein. 5.3 Biological Properties .................................................................................................................... 26 5.3.1 Fungi ................................................................................................................................. 27 5.3.2 Bacteria ............................................................................................................................. 27 6. Biologically Degradable Composite Materials ................................................................................... 27 7. Applications of Natural Fibre Reinforced Polymers.......................................................................... 28 7.1 Automotive Applications .............................................................................................................. 28 7.2 Building Applications ................................................................................................................... 28 7.3 Furniture and Panels ..................................................................................................................... 29 7.4 Aerospace Applications ................................................................................................................ 29 7.5 Others ............................................................................................................................................ 29 8. Recent Developments in Natural and Wood Fibre Reinforcement of Polymers ............................. 29 9. Conclusion .............................................................................................................................................. 30 Additional References ................................................................................................................................... 31 Abbreviations and Acronyms ....................................................................................................................... 32 Abstracts from the Polymer Library Database .......................................................................................... 33 Subject Index ............................................................................................................................................... 135

برای ارسال نظر لطفا وارد شوید یا ثبت نام کنید