Abstract
In this work, the properties of the composite produced from waste carton with various tiger nut fibre contents having cassava starch slurry as binder were investigated. The results obtained showed the ranges of the mean thermal conductivity, bulk density, specific heat capacity, thermal diffusivity, thermal absorptivity, nailability, flexural strength and compressive strength values to be (0.0447 – 0.0603) Wm-1K-1, (683.62 – 746.32) kgm-3, (1439.811 – 1840.554) J/kg/K, (5.612 - 3.553) 10-8 m2s-1, (25.456 – 31.993) m-1, (23.9 – 100)%, (1.58 – 1.86) MPa and (2.16 – 2.78) MPa respectively between 8.3% and 43.1% of the fibre content. It was generally observed that with a choice variation in the fibre content, the performance of the developed board can be optimized for structural applications. Hence, instead of discarding the fibre as waste, recycling it can help to provide raw material for the production of cost effective and environmentally friendly materials. This will in turn reduce health risk caused by environmental pollution due to improper waste disposal practice of such material.
Highlights
Tiger nut is not really nut, but chewy marble-sized tuber obtained from plant called ‘yellow nutsedge’, and its name is got from the stripes on the tuber’s exterior
The dry boards obtained were cut to sizes needed in this work for thermal conductivity, bulk density, specific heat capacity, nailability, flexural strength and compressive strength tests
It can be seen from the table that the mean thermal conductivity values decrease with increase in Tiger nut fibre proportion in the sample
Summary
Tiger nut is not really nut, but chewy marble-sized tuber obtained from plant called ‘yellow nutsedge’ (cyperus esculentus), and its name is got from the stripes on the tuber’s exterior. It grows freely under the soil’s surface. Apart from being eaten raw as food (Ebojele and Ezenwanne, 2014), for instance, tiger nut can be used for production commercial starch for industrial purpose (Adama et al, 2014). In their research work, (Chimma et al, 2009) observed that tiger nut product can be used in the manufacture of soap, perfume and biofuel in industrial scale. The composite flour can be used to make bakery products, which serve as replacement for wheat flour in confectionery industries
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