TECHNICAL NOTE: EFFECT OF FIRE RETARDANT TREATMENT ON MECHANICAL PROPERTIES OF MEDIUM-DENSITY COIR COMPOSITE BOARDS
Keywords:Fire retardant treatment, boron, mechanical properties, coir fibre board.
Composite boards manufactured from natural fibers such as coir can be a useful substitute for wood and plywood. They can also be chemically treated to improve its fire-resistant capabilities. To be rendered useful as a construction material, the chemical treatment has to impart fire resistance without affecting its structural properties. This article investigates the effect of fire-retardant (FR) treatment on mechanical and physical properties of medium-density coir fiberboards when treated with a waterborne solution containing boron compounds using the method of hot and cold bath treatment. Physical properties such as density, MC, and thermal conductivity were determined to compare the performance of treated samples against untreated samples. Investigation of mechanical properties such as tensile strength, bending strength, tensile modulus, and flexural modulus were also carried out using a combination of tensile, bending, and compression tests. The results obtained were encouraging, and it was observed that the coir fiberboards after FR treatment retained much of their properties and in many cases, even improved marginally.
Bureau of Indian Standards (BIS) (2004) Medium density
coir boards for general purposes—specification. IS
:2004. Bureau of Indian Standards, New Delhi,
Green DW, Winandy JE, Kretschmann DE (1999) Mechanical
properties of wood in Wood handbook: Wood
as an engineering material. General Technical Rep.
USDA, Forest Products Laboratory, Madison, WI,
Israel AU, Ogali RE, Akaranta O, Obot IB (2011) Extraction
and characterization of coconut (Cocos nucifera L.) coir
dust. Songklanakarin J SciTechnol 33(6):717-724.
Madurwar MV, Ralegaonkar RV, Mandavgane SA (2013)
Application of agro-waste for sustainable construction
materials: A review. Constr Build Mater 38:872-
Mohanty AK, Misra M, Drzal LT (2002) Sustainable bio-composites from renewable resources: Opportunities and
challenges in the green materials world. J Polym Environ
Raut SP, Ralegaonkar RV, Mandavgane SA (2011) Development of sustainable construction material using
industrial and agricultural solid waste: A review of waste create bricks. Constr Build Mater 25:4037-4043.
Rejeesh CR, Saju KK (2017a) Methods and materials for reducing flammability behaviour of coir fiber based composite
boards: A review. Mater. Today Proc 4(9):9399-9407.
Rejeesh CR, Saju KK (2017b) Effect of chemical treatment
on fire-retardant properties of medium density coir fiber
boards. Wood Fiber Sci 49(3):332-337.
Younquist JA (1999) Wood based composites and panel
products in Wood handbook: Wood as an engineering
material. General Technical Rep. 113. USDA, Forest
Products Laboratory, Madison, WI, 463 pp.
The copyright of an article published in Wood and Fiber Science is transferred to the Society of Wood Science and Technology (for U. S. Government employees: to the extent transferable), effective if and when the article is accepted for publication. This transfer grants the Society of Wood Science and Technology permission to republish all or any part of the article in any form, e.g., reprints for sale, microfiche, proceedings, etc. However, the authors reserve the following as set forth in the Copyright Law:
1. All proprietary rights other than copyright, such as patent rights.
2. The right to grant or refuse permission to third parties to republish all or part of the article or translations thereof. In the case of whole articles, such third parties must obtain Society of Wood Science and Technology written permission as well. However, the Society may grant rights with respect to Journal issues as a whole.
3. The right to use all or part of this article in future works of their own, such as lectures, press releases, reviews, text books, or reprint books.