Open AccessThe effect of alumina nanofillers size and shape on mechanical behavior of PMMA matrix composite
Author(s) -
Hasan Somaya Ahmed Ben,
Marija Dimitrijević,
Aleksandar Kojović,
Dušica Stojanović,
Kosovka Obradović-Đuričić,
Radmila Jančić-Heinemann,
Radoslav Aleksić
Publication year - 2014
Publication title -
journal of the serbian chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.227
H-Index - 45
eISSN - 1820-7421
pISSN - 0352-5139
DOI - 10.2298/jsc140121035b
Subject(s) - whiskers , materials science , whisker , composite number , composite material , nanoindentation , nanoparticle , matrix (chemical analysis) , nanocomposite , nanotechnology
Composites with the addition of alumina nanofillers show improvement in mechanical properties. The PMMA polymer was used as a matrix and two different types of nanofillers, having extremely different shapes were added in the matrix to form the composite. Reinforcements were based on alumina nanoparticles having either spherical shape or whiskers having the length to diameter ratio of 100. The influence of alumina fillers size, shape and fillers loading on mechanical properties of prepared composite were studied using the nanoindentation measurements and dynamic mechanical analysis. It was observed that both alumina whiskers and alumina spherical nanoparticles added in the PMMA matrix improved the mechanical properties of the composite but the improvement was significantly higher with alumina whisker reinforcement. The concentration of the reinforcing alumina spherical nanoparticles and alumina whiskers in PMMA matrix varied up to 5 wt. %. The best performance was obtained by the addition of 3 wt. % of alumina whiskers in the PMMA matrix with regard to mechanical properties of the obtained composite