دانلود کتاب Wood composites

فهرست مطالب :

Content: Front Cover
Wood Composites
Copyright
Contents
Contributors
Woodhead Publishing Series in Composites Science and Engineering
Preface
Part One: Materials for wood composites
Chapter 1: Wood microstructure --
A cellular composite
1.1 Introduction
1.2 Cellular microstructure
1.2.1 Softwoods and hardwoods
1.2.2 Structure of the wood cell wall
1.2.3 Chemistry of the constituents of the wood cell wall
1.2.4 Models for the composite structure of the wood cell wall
1.3 Moisture and the composite wood cell wall
1.4 Orthotropic properties of wood 1.4.1 Elastic properties of wood1.4.2 Strength of wood
1.4.3 Advantages of wood composites
References
Chapter 2: Processing of wood for wood composites
2.1 Introduction
2.2 Raw material characteristics
2.2.1 Wood from natural and planted forests
2.3 Raw material quality requirements
2.4 Peeling and slicing to produce veneers
2.4.1 The peeling process
2.5 Sawmilling to produce solid timber
2.5.1 Sawmill layout and operation
2.5.2 Log sorting
2.5.3 Sawing
2.5.4 Sawing patterns
2.5.5 Drying
2.5.6 Planing
2.5.7 Board grading
2.5.8 Finger jointing 2.6 Chipping, flaking and fibre production2.6.1 Particle production
2.6.2 Flaking to produce strands
2.6.3 Fibre production
2.7 Nanocellulose for advanced biocomposites
2.7.1 Microfibrillated cellulose
2.7.2 Nanocrystalline cellulose
References
Chapter 3: Adhesives for wood composites
3.1 Introduction --
A brief history of wood composites resins
3.2 Common resins for current composite technologies
3.2.1 Urea formaldehyde
3.2.1.1 The manufacture of urea formaldehyde resin
3.2.1.2 Commercial production of urea formaldehyde resins 3.2.1.3 The curing mechanism of urea formaldehyde3.2.2 Melamine urea formaldehyde
3.2.2.1 The manufacture of melamine formaldehyde resin
3.2.2.2 Commercial production of melamine formaldehyde resin
3.2.2.3 The curing of melamine formaldehyde-based resins
3.2.3 Phenolic resins
3.2.3.1 The manufacture of phenolic resins
3.2.3.2 The curing of PF resins
3.3 Other currently used resins
3.3.1 Poly vinyl acetate
3.3.2 Isocyanate resins
3.3.2.1 The manufacture of MDI resin
3.3.2.2 The curing of MDI
3.4 The future of resins for composites applications 3.4.1 Bio-resins --
A history and state of the art3.4.1.1 Tannin-based resins
3.4.1.2 Lignin-based resins
3.4.1.3 Starch-based resins
3.4.1.4 Soy-based resins
3.4.1.5 Carbohydrate adhesives
3.4.1.6 Oil-based adhesives
3.4.2 Advances in synthetic resins
3.4.2.1 Resin formulation changes
3.4.2.2 Addition to the furnish
3.4.2.3 Post-manufacture composite treatment
3.5 Conclusions
References
Part Two: Wood composites and their applications
Chapter 4: Plywood and other veneer-based products
4.1 Introduction
4.2 History and market
4.3 The manufacturing process