| Summary: | Material property is an important element to be considered during the design and engineering application of cardboard to avoid any failure. This study involves the development method for producing the cardboard by using natural waste which is a combination of coir fiber and recycled box. Experimental procedures have been conducted to analyze the mechanical properties and chemical properties of the cardboard. The two parameters in producing cardboard are time soaking coir fiber in sodium hydroxide and the ratio mixing between two materials. For mechanical property, the impulsive excitation test has been performed by tapping a specimen elastically by using an impactor. This experiment is to obtain dynamic Young's modulus property of the cardboard based on its fundamental longitudinal resonant frequency of vibration. In chemical analyzation property, it was performed by using the Fourier transform infrared spectroscopy (FTIR), a technique to obtain an infrared spectrum of absorption, emission, photoconductivity or Raman scattering of a solid specimen. The experimental results show that a higher ratio of coir fiber and longer time treated with sodium hydroxide produces higher dynamic Young' modulus property of cardboard. © 2006-2015 Asian Research Publishing Network (ARPN).
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