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): Michael P. Wolcott; Suzhou Yin; Timothy G. Rials
    Date: 2000
    Source: <i>Composite Interfaces</i> Vol. 7, No. 1, pp. 3-12,(2000)
    Publication Series: Miscellaneous Publication
    PDF: View PDF  (243 KB)


    Crystal morphology of thermoplastics is known to be strongly influenced by the presence of solid suhstrntes like fibers or fillers. For wood, this interphase development is govemed by the chemical composition of the thermoplastic and substrate. The crystallization of PP/MAPP blends WBS observed using polarized light microscopy and quantified using DSC and DM.4. Techniques are presented to assess degree of crystallinity and temperatures associated with the onset (To) and maximum rate (Tc), of crystallization using DMA. Strain history of the specimen during crystallization was evahndted and does not significantly infiucnce either To or Tc. Crystallization temperatures of PP as assessed using DSC or DMA increase with the addition of MAPP or the presence of wood. Values for Tc are higher when measured by DMA than DSC. This difference appears to be related more to the relative interfacial dominance in the specimens, rather than to an inherent difference between techniques.

    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.


    Wolcott, Michael P.; Yin, Suzhou; Rials, Timothy G. 2000. Using Dynamic Mechanical Spectroscopy to Monitor the Crystallization of PP/MAPP Blends in the Presence of Wood. Composite Interfaces Vol. 7, No. 1, pp. 3-12,(2000)


    Wood, polypropylene, maleic anhydride, dynamic mechanical analysis, transcrystallinity

    Related Search

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