A Study on the Effect of Nano Alumina Particles on Fracture Behavior of PMMA

Technologies

Arezou Sezavar¹  Seyed Mojtaba Zebarjad²  Seyed Abdolkarim Sajjadi¹ 

[1]Department of Materials Science and Engineering, Engineering Faculty, Ferdowsi University of Mashhad, Azadi Square, 91775-111 Mashhad, Iran

[2] E-Mails:

[3]Department of Materials Science and Engineering, Engineering Faculty, Shiraz University, 7134814666 Shiraz, Iran

关键词: PMMA;    nanocomposite;    alumina;    fracture mechanism;   

DOI  :  10.3390/technologies3020094

来源: mdpi

【 摘 要 】

In the current research, the role of nano-sized alumina on deformation and fracture mechanism of Poly Methyl Methacrylate (PMMA) was investigated. For this purpose, PMMA matrix nanocomposite reinforced with different wt% of alumina (i.e., 5, 10 and 15) were fabricated using the compression molding technique. Tensile properties of produced nanocomposites were studied using Zwick Z250 apparatus at cross head speed of about 5 mm/min. In order to specify the role of alumina nanoparticles on deformation and fracture mechanism of PMMA, microscopic evaluation was performed using scanning electron microscope (SEM). The achieved results prove that tensile properties of PMMA depend on alumina wt%. For example, addition of 15 wt% alumina to PMMA causes an increase of about 25% modulus of elasticity. Micrographs taken from the fracture surface of PMMA and its nanocomposites show deformation and fracture mechanism of PMMA changes as alumina is added to it.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.