Abstract
The process of vulcanization in the formation of NRL products is influenced by temperature at which the drying temperature has important role in the process of crosslinking that can affect the mechanical properties of NRL films produced. This study discusses about the effect of drying temperature on the mechanical properties of NRL films with modification of corn cob NCC filler obtained from the hydrolysis process with sulfuric acid. NCC filler is made of dispersion system involving polyvinylpyrrolidone (PVP) as a dispersion agent. The resulting product was prepared by mixing NRL compound with modified NCC filler with a polyvinylpyrrolidone dispersion agent by coagulant dipping method. The coagulant utilized in the process of formation of NRL films used 10% calcium nitrate and NRL films which formed with variation of drying temperature 100°C, 110°C, and 120°C for 20 minutes. In this study mechanical properties such as tensile strength, elongation at break, and M100 dan M300 of NRL films has been analyzed. The results showed that mechanical properties such as elongation at break increased with the higher of drying temperature, it was different with tensile strength, M100 and M300. In addition, in this study crosslink density and morphological of NRL films were also analyzed.
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