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R. N. Kumar
Adhesives for Wood and Lignocellulosic Materials
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Оглавление
Страница 1
Contents
Guide
List of Illustrations
List of Tables
Pages
Страница 7
Adhesives for Wood and Lignocellulosic Materials
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Chapter 1 Wood as a Unique Adherend 1.1 Introduction
1.2 Wood, An Adherend with Hierarchical Structure
1.3 Details of Structural Hierarchy in Wood
1.3.1 Physical Structure
1.3.1.1 Growth Rings and Ring-Porous and Diffuse-Porous Wood
1.3.1.2 Wood Cells
1.3.1.3 Organization of Cell Walls in Wood
1.4 Chemical Composition
1.4.1 Cellulose
1.4.2 Hemicelluloses
1.4.3 Lignin
1.4.3.1 Lignin Isolation
1.4.3.2 Functional Groups in Lignin
1.4.3.3 Evidences for the Phenylpropane Units as Building Blocks of Lignin
1.4.3.4 Dehydrogenation Polymer (DHP)
1.5 Influence of Hierarchical Structure of Wood on Wood–Adhesive Interaction
1.5.1 Penetration
1.5.1.1 Penetration in Different Size Scales
1.5.2 Other Wood-Related and Process-Related Factors
1.6 Effect of Hierarchical Structure of Wood on Adhesive Penetration
1.7 Wood Factors Affecting Penetration
1.8 Influence of Resin Type and Formulation on Penetration
1.9 Effect of Processing Parameters on Penetration
References
Chapter 2 Fundamentals of Adhesion 2.1 Introduction
2.2 Definitions
2.2.1 Adhesion
2.2.2 Cohesion
2.2.3 Adhesive
2.2.4 Adherend
2.2.5 Bonding
2.2.6 Adhesive, Assembly
2.3 Mechanism of Adhesion
2.3.1 Specific Adhesion
2.3.1.1 London Dispersion Force
2.3.1.2 Dipole-Dipole Interaction
2.3.1.3 Dipole–Induced-Dipole Interaction
2.3.1.4 Ion–Dipole Interaction
2.3.1.5 Hydrogen Bonds
2.3.1.6 Ionic Bonds
2.3.1.7 Chemical Bonds
2.4 Theories of Adhesion
2.4.1 Mechanical Theory
2.4.1.1 lllustration of Mechanical Adhesion for Wood
2.5 Electronic Theory
2.6 Diffusion Theory
2.7 Adsorption/Covalent Bond Theory
2.8 Adhesion Interactions as a Function of Length Scale
2.9 Wetting of the Substrate by the Adhesive
2.10 Equilibrium Contact Angle
2.11 Thermodynamic Work of Adhesion
2.12 Spreading Coefficient
2.13 Zisman’s Rectilinear Relationship—Zisman’s Plots and Critical Surface Tension of a Solid
2.14 Effect of Surface Roughness on Contact Angle
2.15 Weak Boundary Layer Theory
2.16 Measurement of the Wetting Parameters for Wood Substrate
2.16.1 Some Results on Surface Energy of Wood
2.17 Covalent Bond Formation
References
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