Skip to Main Content
U.S. Forest Service
Caring for the land and serving people

United States Department of Agriculture

Home > Search > Publication Information

  1. Share via EmailShare on FacebookShare on LinkedInShare on Twitter
    Dislike this pubLike this pub
    Author(s): Paul H. Short; George E. Woodson; Duane E. Lyon
    Date: 1978
    Source: Forest Products Journal, Vol. 28(3): 33-38
    Publication Series: Miscellaneous Publication
    PDF: View PDF  (1.18 MB)


    The fiber characteristics and the physical and mechanical properties of medium-density fiberboard (MDF), manufactured with pressure-refined fiber from green and partially dried raw material, were analyzed to determine if dry wood chips made a better furnish than green wood chips. Pressure-refining dry material produced coarser fiber than those obtained from green material at the same refiner conditions. This was true for both loblolly pine and mixed hardwood material. Several important properties were shown to be affected by the Mc of the chips prior to pressure refining. Fore the mixed hardwood furnish, partially drying chips significantly improved IB strength of the fabricated panels. MOR, MOE, and dimensional properties were imdependent of initial chip MC. Partially drying softwood chips significantly improved MOr, IB, water absorption and thickness swelling of the fabricated panels, however MOE and linear expansion were adversely affected. I t was concluded that partially drying lob.olly pine chips prior to pressure-refining improves the overall quality of the MDF panels.

    Publication Notes

    • You may send email to to request a hard copy of this publication.
    • (Please specify exactly which publication you are requesting and your mailing address.)
    • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.


    Short, Paul H.; Woodson, George E.; Lyon, Duane E. 1978. Dry chips versus green chips as furnish for medium-density fiberboard. Forest Products Journal, Vol. 28(3): 33-38

    Related Search

    XML: View XML
Show More
Show Fewer
Jump to Top of Page