Study of fiber loading effect on thermal and rheological properties of bio composite fused filament fabrication

Aminallah, Muhammad Mufqi (2019) Study of fiber loading effect on thermal and rheological properties of bio composite fused filament fabrication. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

This research study was carried out to determine the Physical, Thermal and Rheological Properties of variable volume use Kenaf Fiber with the mixture of Acrylonitrile butadiene styrene (ABS) for the Fused Filament Fabrication process that indicate by the using of analysis testing and experimental results. The objective of this project are to study the impact of fiber loading on natural fiber composite characteristics and to investigate the physical, thermal and rheological behavior of natural fiber composite in 3D printed. In addition, as the attainment that need to be achieve for this study, an assorted scope of study have been outlined which is enlargement made in the texture of the kenaf fiber composite powder. Differentiate the thermal properties of thermal degradation, glass transition, melting temperature and heat of fusion using DSC analysis. Identify the true viscosity and high shear rate using capillary rheometer analysis. Fabrication of filament for kenaf fiber with ABS composite through Fused Filament Fabrication. This research study involve a process of material preparation of kenaf fiber powder with volume of 5 %, 7.5 % and 10 % with the mixture of ABS. Thereafter, the test carry out the physical properties which to obtain the results of water absorption and moisture content as to indicate percentage of weight, thickness and content measurement. Certainly, the moisture content of kenaf fibers specify that 0 % of kenaf fiber content in ABS is 10 % degrade than 5 %, 7.5 % and 10 % kenaf fiber. Then, thermal properties of kenaf fiber was carried out by Differential Scanning Calorimetry to obtain melting temperature value of 219.83 °C for kenaf fiber which 5 % kenaf fiber indicate 105.48 °C of glass transition to determine material degradation or undergoes change of substance. Next, this paper discusses shear viscosity measurements of polymer melts by the capillary rheometer. Particular emphasis is placed on investigating the effects of viscous heating and pressure dependence of viscosity in capillary flows. During the test for rheological properties, sample of kenaf fiber and ABS is originally in the shape of granules, which made fluid by heating and forced to flow out of a cylinder through a 5 mm, 20 mm and 30 mm capillary die length with 1 mm diameter. The results obtain from the testing shows that the kenaf fiber composite viscos when increasing of high shear rate.

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