Fire-retardant-treated low-formaldehyde-emission particleboard made from recycled wood-waste.

Bioresour Technol. 2008 Apr;99(6):2072-7. Epub 2007 May 15.

Author 

Wang SY1, Yang TH, Lin LT, Lin CJ, Tsai MJ.

Author information

• 1School of Forestry and Resource Conservation, College of Bio-Resource and Agriculture, National Taiwan University, Taipei, Taiwan, ROC.

Abstract

The objective of this study was to manufacture fire-retardant-treated low-formaldehyde-emission particleboard from recycled wood-waste particles using polymeric 4,4'-methylenediphenyl isocyanate (PMDI) and phenol-formaldehyde (PF) resins. The influence of the PMDI/PF ratio (ratio of particles sprayed with PMDI to particles sprayed with PF, w/w) after fire retardant treatment on formaldehyde emissions, mechanical properties, and surface fire resistant performance of the manufactured particleboard was investigated. The experimental results showed that the formaldehyde emissions linearly decreased with an increasing PMDI/PF ratio. Moreover, the bending strength, internal bond strength, and screw holding strength increased with an increasing PMDI/PF ratio. The thickness swelling of the particleboard was improved by using an increasing PMDI/PF ratio. Furthermore, the fire-retardant-treated low-formaldehyde-emission particleboards fabricated in our study could pass the third grade standard of surface fire resistant performance as specified by CNS 6532.

PMID:

 

17507217

 

DOI:

 

10.1016/j.biortech.2007.03.047

[PubMed - indexed for MEDLINE]

For further details log on website :
https://www.ncbi.nlm.nih.gov/pubmed/17507217