Studies on dimensional stability and thermal properties of rubber wood chemically modified with styrene and glycidyl methacrylate

Rubber wood (Hevea brasiliensis) was impregnated with styrene and glycidyl methacrylate (GMA) as the crosslinking monomer. After impregnation, the polymerization was accomplished by catalyst heat treatment. Water uptake (%) and water vapor exclusion (%) of the rubber wood were found to be improved o...

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Bibliographic Details
Published in:Journal of applied polymer science 2004-08, Vol.93 (4), p.1938-1945
Main Authors: Devi, Rashmi R., Maji, T. K., Banerjee, A. N.
Format: Article
Language:English
Subjects:
Applied sciences
crosslinker
dimensional stability
Exact sciences and technology
glycidyl methacrylate
Physicochemistry of polymers
Polymer industry, paints, wood
Technology of polymers
thermal properties
wood-polymer composite
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Summary:Rubber wood (Hevea brasiliensis) was impregnated with styrene and glycidyl methacrylate (GMA) as the crosslinking monomer. After impregnation, the polymerization was accomplished by catalyst heat treatment. Water uptake (%) and water vapor exclusion (%) of the rubber wood were found to be improved on treatment. Dimensional stability expressed in terms of volumetric swelling in water vapor (90% relative humidity) as well as in liquid water and water repellent effectiveness (WRE) of the treated samples were determined and also found to be improved. The wood–polymer interaction was confirmed by FTIR spectroscopy. Thermal properties of untreated and treated wood samples were evaluated by thermogravimetric analysis (TGA) and differential scanning calorimetery (DSC) and an improvement in thermal stability was observed for the wood–polymer composites. The improvement in properties observed as more with styrene–GMA (1:1) combination. © 2004 Wiley Periodicals, Inc. J Appl Polym Sci 93: 1938–1945, 2004
ISSN:0021-8995
1097-4628
DOI:10.1002/app.20657