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): Roger M. Rowell; Sandra E. Lange; Rodney E. Jacobson
    Date: 2004
    Source: Proceedings of the 7th Pacific Rim Bio-Based Composites Symposium, 2004 October 31-November 2, Nanjing, China. Nanjing, China : Science and Technique Literature Press, [2004]: pages 216-223.
    Publication Series: Miscellaneous Publication
    PDF: View PDF  (71 KB)

    Description

    Moisture sorption in fiber-thermoplastic composites leads to dimensional instability and biological attack. To determine the pick up of moisture this type of composite, aspen fiber/polypropylene composites were made using several different levels of aspen fiber (30 to 60% by weight) with and without the addition of a compatibilizer (maleic anhydride grafted polypropylene, MAPP). These composites were tested using short and long term water soaking, boiling water, cyclic liquid water and oven drying, and under various relative humidity conditions. As the level of fiber increased in the composites, the rate and extent of thickness swelling and moisture sorption increased as compared to pure polypropylene. After each cycle of water soaking and oven drying, there was a small but continual increase in moisture content. The presence of MAPP decreased the extent of swelling and moisture pickup.

    Publication Notes

    • 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.

    Citation

    Rowell, Roger M.; Lange, Sandra E.; Jacobson, Rodney E. 2004. Effects of moisture on aspen-fiber/polypropylene composites. Proceedings of the 7th Pacific Rim Bio-Based Composites Symposium, 2004 October 31-November 2, Nanjing, China. Nanjing, China : Science and Technique Literature Press, [2004]: pages 216-223.

    Keywords

    Thermoplastic composites, fiber-reinforced plastics, composite materials, moisture, polypropylene, aspen, humidity, swelling, wood-plastic materials, maleic anhydride grafted polypropylene, MAPP

    Related Search


    XML: View XML
Show More
Show Fewer
Jump to Top of Page
https://www.fs.usda.gov/treesearch/pubs/25194