Document Type : Full research article

Authors

• Shahryar Pashaie ¹
• nahid mohammadiasl ²
• soleyman hosseinzadeh ³

¹ Department of Chemistry, Payame Noor University, Tehran, Iran

² Department of Chemistry, Education District 1, Urmia, Iran

³ Department Chemical Engineering, Payame Noor University, Tehran, Iran

Abstract

In present work, orange peel derived activated carbon (OPAC) /Fe₃O₄ loaded into polyurethane biocomposites were synthesized with different weight fractions of (OPAC)/Fe₃O₄ via, 0.5, 1 and 2 wt%  filler in the biocomposites. The physico – mechanical, thermal characteristics and magnetic properties  of fabricated (OPAC)/Fe₃O₄ filled biocomposites  have been measured by using DSC, TGA, DMA and VSM. A slight improvement in thermal stability was noticed for (OPAC)/Fe₃O₄ loaded biocomposites. The PU/(OPAC)/Fe₃O₄biocomposites are thermally stable up to 250ºC and completely degraded above 520 ºC. The biocomposites degradation kinetic parameters for each step of the thermal degradation processes have been studied using two mathematical models namely, Coats–Redfern and Broido's methods. The PU/(OPAC)Fe₃O₄ biocomposites showed high mechanical, magnetic, thermal properties at a low loading of 2 wt.%, and could potentially be used for a wide range of applications.

Keywords

• PU/(OPAC)/Fe3O4
• biocomposite
• orange peel activated carbon
• kinetic parameters