Wood - Cellulose, Lignin, Sugars

wood

Table of Contents

Introduction
Production and consumption of wood
Harvesting of wood
- Management
- Marking, felling, and processing
Utilization of wood
- Primary products
  - Roundwood products
  - Sawn wood
    - Production at the sawmill
    - Yield and grading
  - Veneer
  - Plywood and laminated wood
    - Plywood
    - Laminated wood
  - Particleboard
  - Fibreboard
  - Pulp and paper
- Treatments
  - Drying
  - Preservation
- Chemical products
  - Products of chemical processing
  - Extractives
Wood as a material
- Structure and composition
  - Macrostructure
    - Earlywood, latewood, and pores
    - Heartwood and sapwood
    - Rays and resin canals
    - Radial and tangential sections
  - Microstructure
  - Ultrastructure and chemical composition
  - Variation of structure and defects
- Properties of wood
  - Sensory characteristics
  - Density and specific gravity
  - Hygroscopicity
  - Shrinkage and swelling
  - Mechanical properties
  - Thermal properties
  - Electric properties
  - Acoustic properties
  - Degradation
Bark and bark products

References & Edit History Related Topics

Images & Videos

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For Students

wood summary

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Wood is a source of a wide variety of chemical products. In theory, at least, the number and kind of possible chemical products are equal to those of the products made from petroleum. In practice, however, the chemical products of wood fall into two general groups: products of the chemical processing of wood or its components and wood extractives and their derivatives. Products of chemical processing, made by chemical modification of wood and wood components, include pulp and paper (if pulp is produced by chemical or semichemical methods; see the section Pulp and paper), products of cellulose and other molecular ...(100 of 12879 words)

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