Okay, here is the translation following your instructions: Man-made board technology

Author: Hu Yukun, Editor-in-Chief
Publisher:
Publishing Date: 2002-10-01
Features: This textbook is a national key textbook for the "Nineth Five-Year Plan" in general higher education. Wood has natural three-dimensional and dynamic textures, with moisture absorption and desorption functions, making it suitable for humidity regulation. It has a low thermal conductivity coefficient, providing good surface warmth and coolness, thus serving as an excellent indoor material. Wood has a high specific strength (the ratio of strength to density) (e.g., the specific strength of longitudinal tensile strength of Yunnan pine is 27×10^5 cm, while 45° steel is 7.96×10^5 cm, and nylon 66 is 5.99×10^5 cm), and it is easy to process, making it a good engineering material with a wide range of applications. However, wood is also a non-homogeneous material with directional properties. The physical and mechanical properties differ greatly between the longitudinal and transverse directions (by more than 10 times). During growth, trees develop various defects (knots, spiral grain, etc.), leading to significant variations in wood's mechanical properties. The natural shape of trees also limits the width of products directly made from wood, restricting its use. To overcome these shortcomings, various processing units (veneer, wood chips, fibers, etc.) are combined and composite technologies are employed to produce thousands of artificial products to meet people's needs. Wood is a renewable resource, unmatched by other materials in this regard, and has garnered more attention and development.
Particleboard is a composite material formed by bonding various shaped units together with adhesives into a single sheet. Today, the international community recognizes materials, energy, and information technology as the three pillars of modern civilization. (Particleboard Technology) is an applied science that preserves the inherent advantages of wood (and bamboo) while combining it with other materials through composite technologies to create new materials. This new material retains the main characteristics of the original components while acquiring properties that the original components do not possess. Additionally, through material design, the properties of the components can be complemented and interconnected, achieving superior performance and opening a new path for developing advanced composite materials with a specific strength greater than 4×10^6 cm and a specific modulus greater than 4×10^8 cm. The book focuses on the fundamental theories and application technologies of efficient and comprehensive utilization of wood; the preparation principles of various units; the composite technologies and theories of units, adhesives, and other materials; as well as deep processing of particleboard and environmental protection.