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Requested Publication

Title: Dry-Process Hardboards from Recycled Newsprint Paper Fibers

Source: Materials Research Society

Author(s): Krzysik, Andrezej M.; Youngquist, John A.; Muehl, James M.; Rowell, Roger M.; Chow, Poo; Shook, Steven R.

Publication Year: 1992  View PDF » Mail this web page's link »

Publication Series: Conference Proceedings

Abstract: Dry-process hardboard represents a favorable option for recycling old newspaper fibers. However, dry-process boards tend to be less dimensionally stable than boards processed by other methods. Our objective was to determine the effects of various wood fiber (WF) to old newspaper (ONP) ratios (100:0, 50:50, and 0:100 WF/ONP) on the mechanical strength and water resistance of dry-process hardboards made from these fibers. Untreated and acetylated hardboards were made with 3 or 7 percent resin and 0.5 percent wax. Boards were tested for static bending and tensile strength properties and water resistance. As expected, increasing the resin level from 3 to 7 percent generally im-proved all measured properties. Acetylation substantially improved the water resistance of all boards; increasing the amount of ONP caused a corresponding deterioration in both mechanical properties and water resistance.

Keywords: dry-process; fibers; newspaper; hardboards

File size: 832 kb(s)

Date posted: 05/09/2012
RITS Product ID: 42062

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