Mechanical properties modification of a thin film phenolic resin filled with nano silica particles

•Elastic modulus and hardness of the samples was increased by adding nano SiO2.•Depth penetration was reduced by increasing the nanoparticles percentage.•Nanoparticles have a few effect on the wear properties of the phenolic resin. The current manuscript experimentally investigates the mechanical an...

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Bibliographic Details
Published in:Computational materials science 2015-01, Vol.96, p.411-415
Main Authors: Taheri-Behrooz, F., Memar Maher, B., Shokrieh, M.M.
Format: Article
Language:English
Subjects:
Elastic modulus
Friction
Hardness
Modulus of elasticity
Nano indentation
Nano silica
Nanocomposites
Nanoparticles
Nanostructure
Penetration depth
Phenolic resin
Phenolic resins
Scratch
Scratch tests
Silicon dioxide
Thin films
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Summary:•Elastic modulus and hardness of the samples was increased by adding nano SiO2.•Depth penetration was reduced by increasing the nanoparticles percentage.•Nanoparticles have a few effect on the wear properties of the phenolic resin. The current manuscript experimentally investigates the mechanical and wears properties of three different phenolic polymer nanocomposites. Samples are made of 1, 2 and 3wt.% of well-dispersed silica nanoparticles in a phenolic resin. Firstly, it was found that for the phenolic polymer, the Young’s modulus steadily increased as the weight percent of silica nanoparticles was increased except for 3wt.% nanoparticle filled samples. For the phenolic polymer with 1 and 2wt.% nano silica, Young’s modulus was increased 7% and 12.5%, respectively in comparison with the neat phenolic resin. However, for samples with 3% nanosilica this value showed a reduction about 13.5% and 2.7% in comparison to 2% nanoparticle filled samples and pure samples, respectively. Secondly, the presence of 2wt.% nano silica particles increased the hardness of the phenolic polymer by 27.3% compared with the pure phenolic resin. Also, it was shown by the results of scratch tests that nano silica has almost no effect on the coefficient of the friction and wear rates.
ISSN:0927-0256
1879-0801
DOI:10.1016/j.commatsci.2014.08.042