Natural fillers-filled styrene maleic anhydride copolymer composites
Özet
The aim of this study was to determine morphological characterization, mechanical properties
and thermal stability of natural fillers-filled styrene maleic anhydride (SMA) copolymer
composites. SMA and natural fillers including starch, α-cellulose, and ultra-fine cellulose (UFC)
were used to manufacture composites in thermal melting mixer. The morphology of natural
fillers-filled SMA composites was investigated by scanning electron microscopy (SEM). It was
observed that natural fillers were dispersed within SMA matrix and there were some voids in the
composites. It can be said that the voids occurred due to esterification reactions between matrix
and fillers. Mechanical properties of the composites were determined with flexure test, tensile test
and impact test. The results were showed that flexure and tensile strength and impact strength
were decrease as adding the particles; whereas, both flexure and tensile modulus of elasticity
(MOE) were increased to SMA/AC and then decreased to both SMA/UFC and SMA/Starch.
Thermal stabilities of the composites were measured by thermogravimetric analysis (TGA) and it
was found that thermal stability of the composites was lower than the neat SMA. The interaction
between SMA and natural fillers was studied by Fourier transform infrared spectroscopy (FTIR).
It was said that FTIR curves of the composites generally were same to each one
