Effect of Solid/Liquid Ratio on Mechanical Properties of Kaolin Coated Teak Wood via Geopolymer Technology

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Abstract:

Kaolin, an aluminosilicate source materials was mixed with alkaline activator solution to create a geopolmer paste which was coated on teak wood subsrates. In this work, the effect of solid/liquid ratio (0.4, 0.6, 0.8 and 1.0) was analysed while other parameters were maintained constant. Coating teak wood substrates via geopolymer technology was focused to see the enhancement made to the mechanical properties of teak wood. Various test such as adhesive strength test, water absorption and morphology study was conducted after seventh day of sample preparation. Kaolin coated sample with 1.0 solid/liquid ratio showed the highest adhesive strength of 10.5 MPa and the lowest water absorption of 6.3%. Morphology studies also supported the trend of promising compatibility between kaolin coating and teak wood substrate at 1.0 solid/liquid ratio which further evident the accuracy of collected data.

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708-713

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April 2015

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