Moisture Performance of wood-plastic composites reinforced with extracted and delignified wood flour

Yao Chen; Nicole M. Stark; Mandla A. Tshabalala; Jianmin Gao; Yongming Fan

Treesearch

Moisture Performance of wood-plastic composites reinforced with extracted and delignified wood flour

Formally Refereed

Authors:

Yao Chen, Nicole M. Stark, Mandla A. Tshabalala, Jianmin Gao, Yongming Fan

Year:

2014

Type:

Full Proceedings

Station:

Forest Products Laboratory

Source:

In: the ANTEC 2014, The Plastics Conference, April 28-30, 2014 Rio All-Suite Holtel & Casino, Las Vegas, Nevada; SPE ANTEC 2014 pp. 2049-2053.

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Abstract

This study investigated the effect of using extracted and delignified wood flour on water sorption properties of wood–plastic composites. Wood flour (WF) extraction was performed with three solvent systems: toluene/ethanol (TE), acetone/water (AW), and hot water (HW); delignification was conducted using sodium chlorite/acetic acid solution. A 24 full-factorial experimental design was employed to determine the effects of treatments and combinations of treatments. WF/HDPE composites for testing were manufactured using extrusion and injection molding. Compared with composites containing untreated WF, composites produced with extracted WF had lower water absorption rates and composites containing delignified WF had higher water absorption rates.

Keywords

wood-plastic composites, lignin, extractives, moisture performance, diffusion coefficient

Citation

Chen, Yao; Stark, Nicole M.; Tshabalala, Mandla A.; Gao, Jianmin; Fan, Yongming. 2014. Moisture Performance of wood-plastic composites reinforced with extracted and delignified wood flour. In: the ANTEC 2014, The Plastics Conference, April 28-30, 2014 Rio All-Suite Holtel & Casino, Las Vegas, Nevada; SPE ANTEC 2014 pp. 2049-2053.