#TITLE_ALTERNATIVE#

• Main Author: THAHIR MAHMUD AHMAD PONTOH (NIM 13701020), SHAIQ
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/11402
• Institution: Institut Teknologi Bandung

As an alternative recycle product made from newspaper waste, a research has been done about the production of binderless fiberboard. The results of this research shows that binderless fiberboard can be made using a wet process method (based on TAPPI T200, Mechanical Pulping) to process the fiber into pulp (pulping), and then form the pulp into mat using paperhandsheet machine, which then the mat is pressed with maximum pressure of 500 bar for 10 minutes and dried at 100°C for 24 hours. A variation of mechanical refining process after the pulping process has also been done to see its influence towards the fiberboard properties. This research shows us that the mechanical refining process has an effect on the density, water absorption properties, tensile strength, and the modulus of elasticity of the binderless fiberboard.<p> <br /> <br /> <br /> <br /> <br /> <br /> <br /> The fiberboard that was made through the refining process has a 15.79%, 100% and 59% higher for density, tensile strength (oven dried), and modulus of elasticity (oven dried) respectively. The absorption of moisture at room condition is 16,37% lower. Mechanical testings at room condition showed that the fiberboard which had absorbed moisture had a tensile strength that is about 25% lower and a modulus of elasticity that is about 15% lower than the oven dried fiberboard. These properties differences are related to the fibrillations of fibers caused by the refining process, the increasing of fibers to fibers contact areas, the increasing of volume fraction of fibers, the decreasing of porosities, the increasing of fiber to fiber hydrogen bonding, and the increasing of fibers to fibers entanglements.<p> <br /> <br /> <br /> <br /> <br /> <br /> <br /> Fiberboard with the best properties is the one that was made through the refining process using beater (beating time = 10 minutes) based on TAPPI T200. This fiberboard has a density of 0,66 gr/cm3, tensile strength of 18 MPa (oven dried), modulus of elasticity of 543 MPa (oven dried), and moisture absorption of 4,36% at room condition. This fiberboard properties are still lower than the available commercial MDFs but it has already surpassed the minimum standard hardboard requirements based on ANSI A135.4-2005 (density = 0,500 gr/cm3; tensile strength = 15,2 MPa).