M., Nasir and Gupta, Arun and Beg, M. D. H. and Chua, Gek Kee and A., Kumar (2014) Physical and Mechanical Properties of Mediumdensity Fibreboards Using Soy-Lignin Adhesives. Journal of Tropical Forest Science, 26 (1). pp. 41-49. (Published)
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Abstract
Emission of formaldehyde from wood-based composites is a serious concern for research. In this study, nine different combinations of soy�lignin-based adhesives were prepared by varying their pH and soy content. Lignin was extracted from rubberwood fibres by an enzymatic treatment. Physical and chemical properties of the soy�lignin adhesives were investigated. Solid content in soy�lignin adhesive was calculated by oven-dry method and viscosity was studied using a digital viscometer. Fourier transform infrared spectroscopy was performed to study the structural changes in treated lignin and modified soy�lignin adhesives. Medium-density fibreboard (MDF) was prepared using the nine different soy�lignin adhesives and its bending and internal bonding properties were tested. It was observed that wood composites prepared by alkali-treated soy�lignin adhesives had improved properties. Scanning electron microscope was used to study the surface morphology of MDF. All samples were tested according to ASTM D1037-06a standards. The boards prepared using alkali soy�lignin adhesives passed internal bonding and modulus of rupture tests.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Formaldehyde, laccase, enzyme hydrolysis lignin (EHL), Fourier transform infrared (FTIR) |
| Subjects: | T Technology > TP Chemical technology |
| Faculty/Division: | Faculty of Chemical & Natural Resources Engineering |
| Depositing User: | Mrs. Neng Sury Sulaiman |
| Date Deposited: | 09 Jan 2015 07:44 |
| Last Modified: | 20 Dec 2018 03:47 |
| URI: | http://umpir.ump.edu.my/id/eprint/8144 |
| Download Statistic: | View Download Statistics |
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