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Wood-plastic composite. Wood–plastic composites (WPCs) are composite materials made of wood fiber/wood flour and thermoplastic(s) such as polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), or polylactic acid (PLA). In addition to wood fiber and plastic, WPCs can also contain other ligno-cellulosic and/or inorganic filler materials.
Plastic lumber is composed of virgin or waste plastics including HDPE, PVC, PP, ABS, PS and PLA.The powder or pellets are mixed to a dough-like consistency at roughly 400 °F (204 °C) and then extruded or molded to the desired shape.
With a high strength-to-density ratio, HDPE is used in the production of plastic bottles, corrosion-resistant piping, geomembranes and plastic lumber. HDPE is commonly recycled, and has the number "2" as its resin identification code. In 2008, the global HDPE market reached a volume of more than 30 million tons. [2]
The paint factory is significant in part as "the only remaining extant site of the four Steelcote Manufacturing Company sites"; the firm operated only in St. Louis during its independent existence. [2] It was designed by architects Hellmuth & Hellmuth, a firm founded by George W. Hellmuth (1870-1955) and his brother Harry Hellmuth. [2]
Although composite lumber may resist these marring effects better than other materials, it will still show signs of wear over time. Composite lumber often has a plastic-like or synthetic appearance. Although manufacturers do mold the product with a wood grain or brush stroke pattern, some consumers simply do not like the artificial sheen. [3] [4]
Warship insulation, called Navy Board, was a permanent form-board insulation covered with woven continuous fiber cloth. Owens-Corning produced a prototype boat hull constructed of fiber glass-reinforced plastic in 1944. [11] In 1945, the company worked with an automaker to produce the first fiberglas-reinforced plastic car body.
Engineered wood includes a wide variety of different products such as wood fibre board, plywood, oriented strand board, wood plastic composite (recycled wood fibre in polyethylene matrix), Pykrete (sawdust in ice matrix), plastic-impregnated or laminated paper or textiles, Arborite, Formica (plastic), and Micarta.
Recycling codes on products. Recycling codes are used to identify the materials out of which the item is made, to facilitate easier recycling process.The presence on an item of a recycling code, a chasing arrows logo, or a resin code, is not an automatic indicator that a material is recyclable; it is an explanation of what the item is made of.