The Effect of the Drying Temperature on the Moisture Removal and Mechanical Properties of Sisal Fibers

Abstract

Vegetable fibers have been used in most several applications, as raw material, for manufacturing of different products or directly as reinforcement in composite materials. Green fibers are wet, what requires its drying before their use.In this sense, the aim of this work is to study drying of the sisal fibers in oven. Drying experiments were carried out at different drying condition. It was evaluated the curves of moisture content, drying and heating rates and temperature, as well as the influence of the drying temperature on the mechanical properties of the fibers. It was found that the drying temperature (60 - 105°C) had no significant influence on the tensile mechanical properties, elongation at rupture and modulus of elasticity of the sisal fibers.

Drying of Sisal Fiber: A Theoretical and Experimental Investigation

“…The temperature of the fiber increases as the drying rate decreases. Similar results have been reported for different investigators [7,9]. Further, it can be seen that at the end of the process, the drying rate tends to zero when the moisture approaches the equilibrium moisture content and the temperature of the fiber stabilizes, that is, the fiber approaches its thermal equilibrium.…”

Secagem de fibras de sisal em estufa com circulação forçada de ar: Um estudo experimental

“…A temperatura da fibra cresce na medida em que a taxa de secagem decresce. Resultados semelhantes foram relatados por diferentes pesquisadores (Lima et al, 2016;Santos et al, 2017). Mas é importante resaltar que, para a secagem a temperatura de 80 o C, verificou-se um pequeno acréscimo na taxa de secagem em t = 27,5 min.…”

Drying of Sisal Fiber: Three-Dimensional Mathematical Modeling and Simulation

“…Transfer Phenomena in Fluid and Heat Flows XI [4,7]. Further in Figure 3, it can be seen that at the end of the process, the drying rate tends to zero when the moisture approaches the equilibrium moisture content and the temperature of the fiber stabilizes, that is, the fiber approaches its thermal equilibrium.…”