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

Title: Effect of Boron and Phosphate compounds on Thermal and Fire Properties of wood/HDPE composites

Author: Akbulut, Turgay; Ayrilmis, Nadir; Dundar, Turker; Durmus, Ali; White, Robert H.; Teker, Murat;

Date: 2011

Source: International Journal of Polymers and Technologies

Publication Series: Scientific Journal (JRNL)

Description: Melting and non-isothermal crystallization behaviors, oxidative induction time, and fire performance of the injection-molded wood flour-high density polyethylene (HDPE) composites (WPCs) incorporated with different levels (4, 8, or 12 wt %) of boron compounds [borax/boric acid (BX/BA) (0.5:0.5 wt %), zinc borate (ZB)] and phosphorus compounds [mono- and di-ammonium phosphate] were investigated. The samples without the boron or phosphate had a HDPE content of 60%. The effect of the coupling agent loading (2, 4, or 6 wt %, maleic anhydride-grafted PE (MAPE)), on the above mentioned properties of the treated WPCs was also investigated. Heat release rate (HRR) measurements were conducted with a cone calorimeter. WPC samples including inorganic fire retardant particles generally exhibited higher degree of crystallinity values than control sample. Furthermore, degree of crystallinity increases with the increasing amount of FRs. the DAP and MAP with MAPE significantly increased the OIT values of the WPC compared to other FRs. The FR treatments produced modest improvements in fire performance as indicated by reductions in the heat release rates. Reducing both the wood fiber content and the polymer content equally to accommodate the addition of the FR chemicals likely reduced the net improvement provided by the FR treatment.

Keywords: Boron, phosphate, HDPE, fire retardants, thermal properties, wood plastic composite

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.



Akbulut, Turgay; Ayrilmis, Nadir; Dundar, Turker; Durmus, Ali; White, Robert H.; Teker, Murat 2011. Effect of boron and phosphate compounds on thermal and fire properties of wood/HDPE composites. International Journal of polymers and Technologies 3(2): 67-75.


 [ 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.