The basic element for wood-based composites is the fber, with larger particles composed of many fbers. Elements used in the production of about outdoor composite panels wood-based composites can be made in a variety of sizes and shapes. Typical elements in-clude fbers, particles, fakes, veneers, laminates, or lumber. Figure 11–2 shows the variation and relative size of wood elements. Element size and geometry largely dictate the product manufactured and product performance. Perfor-mance standards are in place for many conventional about outdoor composite prodcuts.
This chapter gives an overview of the general types and composition of wood-based composite products and the ma-terials and processes used to manufacture them. It describes conventional wood-based composite panels and structural composite materials intended for general construction, interior use, or both. This chapter also describes wood–nonwood composites. Mechanical properties of these types of composites are presented and discussed in Chapter 12.
Because wood-based composites come in a variety of forms, we briefy describe several of the most common commercial products.
Because wood-based composites come in a variety of forms, we briefy describe several of the most common commercial products.
Conventional wood-based composites are manufactured products made primarily from wood with only a few percent resin and other additives. A useful way to classify conven-tional about wood plastic composite decking suppliersbased on specifc gravity, density, raw material, and processing methods is shown in
Figure 11–3, which presents an overview of the most com-mon types of commercial panel products discussed in this chapter and a quick reference to how these composite mate-rials compare with solid wood from the standpoint of den-sity and general processing considerations. The raw material classifcations of fbers, particles, and veneers are shown on the left y-axis. Specifc gravity and density are shown on the top and bottom horizontal axes (x-axes), respectively. The right y-axis, wet and dry processes, describes in general terms the processing method used to produce a particular product. Selection of about wood plastic composite lumber elements, adhesives, and pro-cessing techniques all contribute to product performance. Figure 11–4 shows examples of some commercial wood-
based composites.
Figure 11–3, which presents an overview of the most com-mon types of commercial panel products discussed in this chapter and a quick reference to how these composite mate-rials compare with solid wood from the standpoint of den-sity and general processing considerations. The raw material classifcations of fbers, particles, and veneers are shown on the left y-axis. Specifc gravity and density are shown on the top and bottom horizontal axes (x-axes), respectively. The right y-axis, wet and dry processes, describes in general terms the processing method used to produce a particular product. Selection of about wood plastic composite lumber elements, adhesives, and pro-cessing techniques all contribute to product performance. Figure 11–4 shows examples of some commercial wood-
based composites.
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