| Summary: | The present study reports the preparation and characterization of kenaf papers that reinforced with tapioca starch by using the ammonium zirconium (IV) carbonate as coupling agent. The examination shows the tearing resistance, tensile strength, and Young’s modulus of the kenaf papers are enhanced with the addition of starch and coupling agent, up to 3% and 1%, respectively. Under the optimum formulation, the degree of coupling reaction is 87%. The Fourier transform infrared and morphological analyses confirm the performance enhancement of kenaf papers is achieved via the formation of chemical bonding between the kenaf fiber and tapioca starch.
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