| 摘要 |
<p>A composite article is used in commercial and residential decking. The composite article includes a first layer including a thermoplastic resin and a cellulosic fibe r. The composite article also includes a second layer including a styrene butadiene copolymer that is disposed in contact with the first layer. The composite article further includes a third layer consisting essentially of styrene acrylonitriles and disposed in contact with the second layer as an outermost layer of the composite article. The thermoplastic resin and cellulosic fiber contribute t o shear strength and compressive strength. The styrene butadiene copolymer, as a tie layer, contributes to an ability of the first layer to bond to the third layer. The styrene acrylonitriles contribute to ultraviolet light resistance, moisture resistance, mold resistance, weatherability, and resistance to warping and surface distortion, and allow the composite article to be used in outdoo r environments.</p> |
