Wood Handbook, Wood as an Engineering Material
Ease and simplicity—One-part adhesives, such as poly(vinyl acetate), one-part polyurethane, hot-melt, and phenol-formaldehyde, a ...
will cause shrinking or swelling that can seriously weaken both wood and joint and can cause warping, twisting, and surface irre ...
distributed with a drum blender, kneader, or tube blender. These binder adhesives hold the product together by a se- ries of joi ...
before pressing to allow solvents to evaporate or adsorb into the wood, so that the adhesive is thick enough to avoid overpenetr ...
Bonded Joints Edge-Grain Joints Edge-grain joints (Fig. 10–9A) can be almost as strong as the wood in shear parallel to the grai ...
Chapter 10 Adhesives with Wood Materials: Bond Formation and Performance Construction Joints Elastomeric construction adhesives ...
Nuclear magnetic resonance (NMR) spectroscopy and other spectroscopic techniques help characterize the molecular structures of a ...
High levels of wood failure in a wet and hot environment suggest that the adhesive bond is as strong as the wood. If cycles of a ...
are durable enough to use on lower density species even under exterior conditions, but for most of these adhesives, exterior exp ...
Hardwood Plywood & Veneer Association. [Current edi- tion]. American national standard for hardwood and decora- tive plywood ...
Department of Agriculture, Forest Service, Forest Products Laboratory. 16 p. River, B.H. 1981. Behavior of construction adhesive ...
CHAPTER 11 Wood-Based Composite Materials Panel Products, Glued-Laminated Timber, Structural Composite Lumber, and Wood–Nonwood ...
Scope This chapter gives an overview of the general types and composition of wood-based composite products and the ma- terials a ...
Chapter 11 Wood-Based Composite Materials Adhesives Bonding in most conventional wood-based composites is provided by thermosett ...
from the press. Advantages of UF resins include lower cur- ing temperatures than PF resins and ease of use under a variety of cu ...
Resin Choice Often a particular resin will dominate for a particular prod- uct, but each has its advantages. Factors taken into ...
whose grain direction runs perpendicular to that of the faces are termed “crossbands.” To distinguish the number of plies (indiv ...
Classes of Plywood Two classes of plywood are commonly available, covered by separate standards: (a) construction and industrial ...
the predominant wood species used. As the industry learned to control strand size, placement, and orientation, the per- formance ...
Figure 11–7. Typical grade stamps for hardwood plywood. (Courtesy of Hard- wood Plywood & Veneer Association, Reston, Virgin ...
«
8
9
10
11
12
13
14
15
16
17
»
Free download pdf