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): Craig M. ClemonsNicole M. Stark
    Date: 2009
    Source: Wood and fiber science. Vol. 41, no. 1 (Jan. 2009): pages 2-12.
    Publication Series: Miscellaneous Publication
    PDF: Download Publication  (576 KB)


    Saltcedar (Tamarix ramosissima) was investigated for use as a filler in wood–plastic composites (WPCs). The mineral content, water-soluble extractive content, and thermal stability of saltcedar flour were compared with those of a commercial pine wood flour. The wood flours were compounded with plastic, and the viscosities of the composite melts containing the two species were compared. Injection-molded composites produced from the compounded material were evaluated for mechanical performance and weatherability. Saltcedar flour had more minerals and water-soluble extractives than pine flour, which resulted in lower thermal stability, but also lower melt viscosity when compounded with high-density polyethylene. Injection-molded WPCs made from unextracted saltcedar performed similarly to those made from pine in accelerated weathering tests, but their mechanical properties were generally lower. The flexural modulus of elasticity increased when extracted wood flour was used, especially for the saltcedar composites. However, color stability and flexural strength changed little. Producing WPCs from these composites is possible, although economically feasible applications that use the advantageous properties of these species and that can tolerate or address the less desirable ones need to be identified and demonstrated.

    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.


    Clemons, Craig M.; Stark, Nicole M. 2009. Feasibility of using saltcedar as a filler in injection-molded polyethylene composites. Wood and Fiber Science. 41(1): 2-12.


    Saltcedar, tamarisk, polyethylene, wood–plastic composite, WPC, filler, wood flour, injection molding, elasticity, viscosity, pine, thermal analysis, composite materials, mechanical properties, injection molding of plastics, weathering, thermoplastic composites, modulus of elasticity, accelerated life testing, Tamarix ramosissima, accelerated testing, thermal degradation, mineral content, wood-plastic materials, wood extractives

    Related Search

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