Skip to page content
USDA Forest Service

Research & Development Treesearch

Treesearch Home
About Treesearch
Contact Us
Research & Development
Forest Products Lab
International Institute of Tropical Forestry
Pacific Northwest
Pacific Southwest
Rocky Mountain
Southern Research Station
Help - We Participate  Government Made Easy

Global Forest Information Service

US Forest Service
P.O. Box 96090
Washington, D.C.

(202) 205-8333

You are here: Home / Search / Publication Information
Bookmark and Share

Publication Information

View PDF (315 KB bytes)

Title: Nanoindentation of the interphase region of a wood-reinforced polypropylene composite

Author: Jakes, Joseph E.; Hermanson, John C.; Stone, Donald S.;

Date: 2007

Source: Ninth International Conference on Wood & Biofiber Plastic Composites :May 21-23, 2007 ... Madison, Wisconsin, USA. Madison, WI : Forest Products Society, c2007: ISBN: 1892529505: 9781892529503: Pages 197-203

Publication Series: Miscellaneous Publication

Description: The interphase region of a wood-reinforced polypropylene (PP) composite was investigated with nanoindentation techniques capable of separating intrinsic properties of PP in the interphase region from the effect of elastic discontinuity caused by the nearby wood cell wall. From data collected in this experiment, no differences in hardness or Young’s modulus for PP were observed between bulk PP and PP in the inter-phase. Had the elastic discontinuity not been taken into consideration, the measured Young’s modulus would have appeared to increase in the interphase region. Observations were also made about morphology of the composite, and it was noted that filler particles were present in the majority of PP but were absent in PP present in lumens of intact wood cells. Effects of these filler particles on the nanoindentation data were also investigated.

Keywords: Fibers, fiber-reinforced plastics, mechanical properties, microstructure, testing, composite materials, wood plastic composites, polypropylene, nanotechnology, plant cell walls, nanostructured materials, elasticity, thermoplastic composites, hardness, nanoindentation, penetration, wood-plastic materials

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.



Jakes, Joseph E.; Hermanson, John C.; Stone, Donald S. 2007. Nanoindentation of the interphase region of a wood-reinforced polypropylene composite. In: Stark, Nicole M. Ed. Proceedings Ninth International Conference on wood & biofiber plastic composites. 2007 May 21-23; Madison, WI. Madison, WI: Forest Products Society: 72224: 197-203. ISBN: 1892529505: 9781892529503.


 [ Get Acrobat ]  Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility

USDA logo which links to the department's national site. Forest Service logo which links to the agency's national site.