摘要:
Methods for making building panels are described. The methods include combining water, an inorganic fiber, and one or more binders to form a slurry, wherein at least one of the binders comprises starch; shaping the slurry into a panel; applying a coating to a back side of the panel, the coating comprising a reaction product of magnesium oxide and a phosphate salt in the absence of an amino alcohol; and drying the panel. Building panels are also described.
摘要:
An acoustic tile with excellent anti-sagging properties is provided. The tile comprises a soy-protein binder selected from the group consisting of soy flour, soy protein concentrate, soy protein isolate and any combination thereof. In further embodiments, the tile further comprises polyamide-epichlorohydrin. Other tiles include those made with a thermosetting binder selected from the group consisting of an acrylic binder, a polyester binder, an acrylo-polyester binder and any mixture thereof. Energy-efficient methods for making the tiles are also provided.
摘要:
An acoustical tile including: 8 to 25 wt % mineral wool, 9 to 15 wt % starch binder, 9 to 15 wt % cellulosic fiber, wherein preferably the cellulosic fiber is newsprint, and 40 to 65 wt % perlite, wherein the weight ratio of the starch to the cellulosic fiber is 0.6 to 1.3:1; and a process for making the acoustical tile.